| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 166242100 | CONDUIT WALL OR SPECIFIC CONDUIT END STRUCTURE | 77 |
| 20080271884 | DROPPING SUB METHOD AND APPARATUS - In one embodiment a method and apparatus for an improved loading sub method and apparatus is disclosed. In one embodiment the method and apparatus can be used to pump various pump down means into the well bore from the rig. | 11-06-2008 |
| 20080302527 | String Mounted Hydraulic Pressure Generating Device for Downhole Tool Actuation - Two subs are held in a fixed position relative to each other when assembled to a string and run into a wellbore. A reservoir of fluid is defined in a wall between the subs. The reservoir has one or more outlets connected by a short jumper line to an adjacent tool to be operated. At the appropriate time, set down weight breaks a shear pin to reduce the reservoir volume and create pressure in the exit lines. The exit lines can be connected to operating pistons in adjacent tools to actuate them or to perform other desired functions using a stream of pressurized fluid. The device can be set for one time or multiple cycles where fluid in the reservoir can be replenished and re-pressurized for multiple cycles of operation. | 12-11-2008 |
| 20090050314 | Surface improvement for erosion resistance - The technique of laser induced surface improvement is used for tool surfaces in downhole tools that experience erosion from slurry or high velocity flows. | 02-26-2009 |
| 20090236091 | FIBER REINFORCED POLYMER OILFIELD TUBULARS AND METHOD OF CONSTRUCTING SAME - A technique facilitates construction of high temperature fiber reinforced polymer oilfield tubulars. The technique comprises a method of combining a fiber material and a high temperature thermoset resin to create a high performance composite material. The composite material is formed into an oilfield tubular that can be used in a variety of downhole applications. The method of combining the high performance materials with low modulus, high temperature coating materials during the manufacturing process produces composite tubular products that can survive prolonged exposure to deleterious well fluids in high temperature and high pressure downhole environments. | 09-24-2009 |
| 20090301710 | Fixed Swirl Inducing Blast Liner - Wear is reduced in abrasive slurry service at an outlet into an annular space defined by the wellbore and around the tool. In a gravel packing application with a crossover, the slurry exits a central passage and goes into an internal annulus in the tool. Turning vanes that make at least one full turn and that have a height at least partially the height of the annular space are there to impart a swirl movement to at least a portion of the slurry stream. The swirling motion has beneficial effects of reducing turbulence which allows a velocity reduction for a comparable output volume. As a result of the lower turbulence leading to the final exit from the tool into the surrounding annulus, the exit ports experience reduced erosion and longer service life. | 12-10-2009 |
| 20110120701 | Stress Relief in a Pocket of a Downhole Tool String Component - A downhole tool string component has a tubular body with an inner and outer diameter. A pocket is formed in the outer diameter and is adapted to receive downhole instrumentation. A covering is attached to the outer diameter of the component and is adapted to seal the pocket from outside debris, the pocket having a bottom floor and a plurality of side walls. A stress relief is formed in the pocket. | 05-26-2011 |
| 20110214855 | Expandable Device for Use in a Well Bore - An expandable device comprising a plurality of expandable cells. The cells may be bistable cells or other types of cells that are expanded from a contracted position towards an expanded position. Additionally, the cells may be combined with locking mechanisms to hold the structure in an expanded position. | 09-08-2011 |
| 20120145381 | Foldable Composite Tubular Structure - Foldable pipe-in-pipe composite tubular structure having between pipes after rounding and hardening a filling material associating the layers to enhance the structure mechanical performance mostly in collapse resistance. Improvements are related to increase foldability by having at least one of the pipe made of two layers and in case of transportation on a reel in continuous length the capability of circulating most of the hardenable filling material when the pipe is still on the reel and in case of wellbore casing application the capability of connecting sealingly successive strings of casing | 06-14-2012 |
| 20120205094 | Wellbore Method and Apparatus For Completion, Production and Injection - Apparatus associated with the production of hydrocarbons comprising a joint assembly comprising a main body portion having primary and secondary fluid flow paths, wherein the main body portion is attached to a load sleeve assembly at one end and a torque sleeve assembly at the opposite end. The load sleeve may include at least one transport conduit and at least one packing conduit. The main body portion may include a sand control device, a packer, or other well tool for use in a downhole environment. Included is a coupling assembly having a manifold region in fluid flow communication with the second fluid flow path of the main body portion and facilitating the make-up of first and second joint assemblies with a single connection. | 08-16-2012 |
| 20120211224 | Wireless downhole tool positioning system - A string of drill pipe, for example, is assembled with a severing sub in anticipation of a possible need to cut the string at some point in the operation. The severing sub includes a thin wall tube that links opposite end tool joint bosses. The tin wall tube is easily cut by a shaped charge cutter. Rotary drive torque is transmitted between the sub tool join bosses by a concentric external torque tube having a torque transmitting assembly at each boss. The torque tube connection to the upper boss has an inseparable circumferential shoulder engagement with the boss. The lower boss engagement of the torque tube is axially separable. When the thin wall tube is cut, the upper boss and torque tube is withdrawn from the well with the upper pipe string. | 08-23-2012 |
| 20130075081 | FORMING INCLUSIONS IN SELECTED AZIMUTHAL ORIENTATIONS FROM A CASING SECTION - A method of forming multiple inclusions into a subterranean formation can include initiating the inclusions into the formation, the inclusions extending outwardly in respective multiple azimuthal orientations from a casing section, and flowing fluid into each of the inclusions individually, thereby extending the inclusions into the formation one at a time. A system for initiating inclusions outwardly into a subterranean formation from a wellbore can include a casing section having multiple flow channels therein, each of the flow channels being in communication with a respective one of multiple openings formed between adjacent pairs of circumferentially extendable longitudinally extending portions of the casing section. Another system can include a casing section, and an injection tool which engages the casing section and selectively directs fluid into each of the inclusions individually, whereby the inclusions are extended into the formation one at a time. | 03-28-2013 |
| 20130098602 | PRODUCTION TUBING FOR OIL WELLS MADE OF A COMPOSITE MATERIAL OF CONTINUOUS CARBON FIBRE - Production tubing for oil wells comprising a plurality of cylindrical elements made of a composite material consisting of continuous carbon fibres impregnated with a thermosetting epoxy resin, joined adjacently to each other by means of a male/female connection system, wherein the male connection is present on one end of the cylindrical element and the female connection is present on the other end of the cylindrical element. | 04-25-2013 |
| 20130284427 | Constraining Pyrite Activity in Shale - Degeneration of shale caused by oxygen in aqueous drilling, fracturing and completion fluids is minimized by introducing imidazolines modified so that they will be attracted efficiently to pyrites in the shale, thereby forming a protective coating on the pyrites. Inhibiting oxidation of the pyrites sharply reduces physical degradation of the shale, and the generation of undesirable oxides, in the presence of drilling, fracturing and completion fluids carrying oxygen. The imidazoline is an ionic salt of a monocarboxylic acid. | 10-31-2013 |
| 20140000873 | SACRIFICIAL LINER LINKAGES FOR AUTO-SHORTENING AN INJECTION PIPE FOR UNDERGROUND COAL GASIFICATION | 01-02-2014 |
| 20140090832 | Mandrel Arrangement and Method of Operating Same - A mandrel arrangement is for use in a wellbore tubing. A method is for using the same. A mandrel body houses at least one piston, the at least one piston being movable in relation to the mandrel body between a first position and a second position by a fluid force acting on the piston. A cavity is arranged adjacent the piston for communicating wellbore fluid pressure between the wellbore tubing and the piston. The cavity is provided with drainage means for facilitating removal of any particles present in at least a lower portion of the cavity. | 04-03-2014 |
| 20140144620 | ELECTROSTATICALLY COATED COMPOSITES - Herein disclosed is a method of electrostatically coating a composite object comprising: a) Pretreating a surface of the composite object with a composition to induce conductivity; b) Applying a charge to the object after surface pretreatment; and c) Electrostatically applying a coating material to the object. In an embodiment, the method comprises cleaning the surface of the composite object prior to pretreating. Also described is a composite downhole tool pretreated with a surface pretreatment composition and electrostatically coated. In an embodiment, the composite downhole tool comprises bridge or frac plug mandrels, wedges, sleeves, noses, cones, mule shoes, extrusion limiters, slips, baffles, landing seats, frac balls, wireline tools, housings for measurement-while-drilling, housings for logging-while-drilling, or tubular parts. | 05-29-2014 |
| 20140238661 | THREADED TUBULAR COMPONENT AND RESULTING CONNECTION - A threaded tubular component configured for drilling or working hydrocarbon wells, the tubular component including, at one of its ends, a threaded zone formed on its external or internal peripheral surface depending on whether the threaded end is male or female in type. The end portion is at least partially coated with a dry film, including a thermoplastic or thermoset matrix including microcapsules filled with compounds in liquid form. | 08-28-2014 |
| 20150047831 | STAINLESS STEEL FOR OIL WELLS AND STAINLESS STEEL PIPE FOR OIL WELLS - A stainless steel for oil wells which has excellent high-temperature corrosion resistance and can stably obtain a strength of not less than 758 MPa is provided. The stainless steel for oil wells contains, by masse, C: not more than 0.05%, Si: not more than 1.0%, Mn: 0.01 to 1.0%, P: not more than 0.05%, S: less than 0.002%, Cr: 16 to 18%, Mo: 1.8 to 3%, Cu: 1.0 to 3.5%, Ni: 3.0 to 5.5%, Co: 0.01 to 1.0%, Al: 0.001 to 0.1%, O: not more than 0.05%, and N: not more than 0.05%, the balance being Fe and impurities, and satisfies Formulas (1) and (2): | 02-19-2015 |
| 20150337644 | REMOVEABLE ELECTRONIC COMPONENT ACCESS MEMBER FOR A DOWNHOLE SYSTEM - A downhole tool includes a tool body having an outer surface portion and an inner surface portion and a recess formed in one of the outer surface portion and inner surface portion. At least one removable electronic component access member is detachably mounted to the tool body. The removable electronic component access member provides access to electronic components housed in the recess. A metallic seal is provided on at least one of the tool body and the removable electronic component access member. The metallic seal prevents fluid ingress into the recess through the at least one removable electronic component access member. | 11-26-2015 |
| 20160047175 | MODIFIED TUBULAR WITH WIRELESS COMMUNICATION DEVICE - An oil field tubular has a composite material housing within which is located one or more wireless communication devices with a charge storage device for powering the communication device(s). In a disclosed method of installing a wireless communication device upon an oilfield tubular, a prefabricated composite shell formed with an inner skin and outer skin forming an inner space for containing the wireless communication device is applied to a surface of the tubular so as to form a cavity between the surface of the tubular and the prefabricated composite shell, a bonding material is introduced to the cavity and bonding material is cured. | 02-18-2016 |
| 20160060966 | FLOW DEVICE AND METHODS OF CREATING DIFFERENT PRESSURE DROPS BASED ON A DIRECTION OF FLOW - A flow device, includes a flow-through region comprising at least one stage and configured to create a first pressure drop across the flow-through region in response to flow through the flow-through region in a first direction and a second pressure drop in response to flow through the flow-through region in a second direction. The first pressure drop being less than the second pressure drop under the same flow rates. The flow device having no moving parts to create the difference in pressure drop between the first direction and the second direction. A method of creating different pressure drops based on a direction of flow. | 03-03-2016 |
| 166242200 | Flexible tube or cable | 6 |
| 20080230218 | Segmented Sleeve on a Downhole Tool String Component - In one aspect of the invention a downhole tool string component has a segmented sleeve slideably attached over the exterior of a mandrel which is adapted for connection to an adjacent tool string component. An end of the sleeve is abutted against a shoulder element of the mandrel and an opposite end of the sleeve is axially loaded by a threaded element attached to the mandrel. The sleeve comprises at least one sleeve segment with an engagement end comprising at least one axial anti-rotation assembly adapted to transfer torque to an adjacent sleeve segment, the shoulder element, or the threaded element. | 09-25-2008 |
| 20090242194 | Reduced Nylon Hydrocarbon Application Cable - A hydrocarbon application cable of reduced nylon with increased flexibility and useful life. The cable may be of a hose or solid configuration and particularly beneficial for use in marine operations. A power and data communicative core of the cable may be surrounded by a lightweight intermediate polymer layer of a given hardness which is ultimately then surrounded by an outer polymer jacket having a hardness that is greater than the given hardness. Thus, a lighter weight polymer is provided interior of the outer polymer jacket, which may be of nylon or other suitably hard material. As such, the overall weight and cost of the cable may be substantially reduced. | 10-01-2009 |
| 20110259580 | CABLES FOR DOWNHOLE USE - A cable and coiled tubing suspends an electrically powered tool in a borehole and providing the tool with electrical power by the cable, the cable being disposed in the coiled tubing, the cable incorporating a conducting member which carries the majority of the tensile stress on the cable, and without the cable being secured along its length to the inside of the coiled tubing. The cable may be capable of supplying high voltage electrical power, in which case the cable comprises a conducting member having a steel core, an outer cladding of copper, and at least one insulating layer surrounding the outer cladding of copper, the copper making up between 20% and 40% of the total copper and steel content of the cable, the cable being able to support at least its own weight. | 10-27-2011 |
| 20130075082 | Transition End for a Plastic Pipe and Method of Installation - An apparatus and method are shown for installing a metal transition end on an open end of a length of plastic pipe having an outer diameter and an inner diameter by placing a stiffener sleeve within the inner diameter of the plastic pipe at a point which is circumscribed by the metal transition end. An actuating sleeve, carried on the draw rod, allows the stiffener sleeve to be installed in a desired location within the open plastic pipe end by using the draw rod to first position the stiffener sleeve in the desired location. The metal transition end is provided with an internal relief groove which accepts any excess plastic material forced past the stiffener sleeve during the installation process. | 03-28-2013 |
| 20130180707 | Rugged Coiled Tubing Connector - The current application discloses coiled tubing assemblies and methods of connecting coiled tubing with downhole devices. In an exemplary embodiment, the assembly comprises a coiled tubing, a downhole device for performing an operation in a subterranean wellbore, a connector that mechanically connects the coiled tubing to the downhole device; and a sealing device that seals the connection between the coiled tubing and the connector. The sealing device is substantially free of axial tensions caused by a weight of the downhole device. | 07-18-2013 |
| 20150041118 | Method for Installing a self-supporting tower for Extracting Hydrocarbons - A flexible tubular structure for oil exploitation, said flexible tubular structure having at least one reinforcing layer and at least one layer of a fluoropolymer compound, wherein said fluoropolymer compound has a composition including a polyvinylidene fluoride homopolymer and a vinylidene fluoride/fluorinated comonomer copolymer, and a plasticizer. The proportion by weight of hexafluoropropylene monomer in the copolymer is greater than | 02-12-2015 |
| 166242300 | Plural, parallel, nonconcentric conduits | 2 |
| 20140305633 | Capillary Injection Delivery System Having Tubing Anchor - A capillary injection system delivers chemical with a capillary string to a targeted area in a wellbore such as adjacent a rod pump of a reciprocating pump system. The capillary string is disposed along the production string and delivers the chemical downhole. A tubing anchor disposed on the production string anchors the production string in tension in the casing. The tubing anchor has a mandrel coupled to the production string and has a housing disposed on the mandrel. The mandrel accommodates the capillary string outside thereof and defines a guide slot for controlling relative movement of the mandrel and the housing engaged with the guide slot. The housing has a slip movable outward from the mandrel. The mandrel is in a set condition is moved axially in the guide slot, and the slip is moved outward from the mandrel against the casing. | 10-16-2014 |
| 20160251913 | Jumper Tube Locking Assembly and Method | 09-01-2016 |
| 166242400 | Corrosion prevention or deterring | 4 |
| 20090200013 | WELL TUBULAR, COATING SYSTEM AND METHOD FOR OILFIELD APPLICATIONS - A technique facilitates the use of polymer materials in a downhole environment via utilization of a coating that can be applied to the polymer material. The methodology enables formation of a coating that sufficiently bonds with an underlying base structure of polymer material to withstand the harsh environment encountered in a downhole application. Additionally, the coating may utilize reactive chemistries to further protect the polymer material against the ingress of deleterious fluids while located in the downhole environment. Well tubulars formed of coated polymer are also described. | 08-13-2009 |
| 20090255667 | Crossover Sub with Erosion Resistant Inserts - A crossover tool that resists the erosive forces of high velocity slurry streams of gravel in downhole fracturing and gravel packing operations employs hardened inserts that protect the inside face of the housing as well as the openings through the crossover housing wall. The inserts have an extending portion that goes through housing openings preferably to the outer surface of the housing. The inserts also have inboard flanged surfaces that preferably abut or overlap to give preferably full inner wall protection to the housing from the flow of abrasive slurry. The inserts can be secured to each other or to the interior of the housing to hold them firmly in place. | 10-15-2009 |
| 20140110101 | Well Tubular, Coating System and Method for Oilfield Applications - A technique facilitates the use of polymer materials in a downhole environment via utilization of a coating that can be applied to the polymer material. The methodology enables formation of a coating that sufficiently bonds with an underlying base structure of polymer material to withstand the harsh environment encountered in a downhole application. Additionally, the coating may utilize reactive chemistries to further protect the polymer material against the ingress of deleterious fluids while located in the downhole environment. Well tubulars formed of coated polymer are also described. | 04-24-2014 |
| 20150060051 | METHODS OF FORMING BORIDED DOWNHOLE TOOLS, AND RELATED DOWNHOLE TOOLS - A method of forming a downhole tool comprises contacting at least one downhole structure comprising at least one metal material with a molten electrolyte comprising anhydrous sodium tetraborate. Electrical current is applied to at least a portion of the at least one downhole structure to form at least one borided downhole structure comprising at least one metal boride material. Other methods of forming a downhole tool, and a downhole tool are also described. | 03-05-2015 |
| 166242600 | Downhole coupling or connector | 42 |
| 20090008087 | THREADED JOINT FOR AN OIL-WELL TUBING - The engineering problem of the claimed invention consists in the increase of operating reliability of the threaded joint, whose coupling has the coating applied by the diffusion galvanizing method, by way of ensuring a proper standard tightness. The technical result of the increase of the inlet cylindrical counterbore length in the internally threaded element by the value of the thread tightness increment caused by galvanizing and determined from the claimed empirical formula consists in increased reliability of the joint under service conditions as the probability of overtightening the joint for the sake of attaining the nominal tightness, as well as damage to the end thread turns projected from the coupling on service are ruled out. This result is attained without consumption of time and funds for re-training of the personnel, publication and delivery of new normative materials to each drilling site, manufacture of new calibrating tools and repair mountings. In its turn, this makes it possible to immediately begin supplying the suggested joints and increase the service life of standard threaded joints of oil-well tubings from 6÷8 to at least 50 screwing/unscrewing cycles. Besides, in case of forced screwing with a standard torque the joint reliability also increases because the threaded part of the externally threaded element is nearly completely hidden inside the counterbore due to the increased counterbore length and thus protected against the mechanical effect of the well medium. | 01-08-2009 |
| 20090084541 | STRUCTURE FOR WIRED DRILL PIPE HAVING IMPROVED RESISTANCE TO FAILURE OF COMMUNICATION DEVICE SLOT - A structure for wired drill pipe includes a pipe joint having a pin end and a box end. The pin end and box end each have threads for engagement with corresponding threads on a respective box and pin of an adjacent pipe joint. A longitudinal end of the threads on the pin and on the box include at least in an internal shoulder for engagement with a corresponding internal shoulder on an adjacent box or pin. The internal shoulder of each of the pin and the box includes a groove around a circumference thereof for retaining a communication device therein. An external flank of the groove on the pin, and a corresponding surface of the box include deflection resistance feature. | 04-02-2009 |
| 20090139711 | Tool String Threads - A downhole tool string component comprises a tubular body with a first and second end. The tubular body of the tool string comprises an inner surface and an outer surface. A loading member near the other end of the tubular component is disposed about the outer surface and is adapted for loading the at least one sleeve against a shoulder. The loading member comprises an internal threadform adapted to threadingly engage an external threadform in the outer surface of the tubular body. Either the external threadform or the internal threadform comprises a plurality of threads with a distal thread comprising a first thread height and a proximal thread comprising a second thread height. The first thread height is greater than the second thread height and a plurality of the threads heights between the first and second thread heights accumulatively taper from the first height to the second height. | 06-04-2009 |
| 20090229817 | MODULAR CONNECTOR AND METHOD - A connector connects auxiliary flow lines—and, in some configurations, electrical lines—that extend through and terminate at or near opposing ends of two respective components of a downhole tool string. The connector comprises a body assembly for fluidly-connecting the auxiliary flow lines and electrically-connecting the electrical lines of the respective two components, and an assembly for adjusting the length of the body assembly. In particular embodiments, the two components are discrete modules of a unitary tool, or alternatively, are distinct tools. Additionally, the connector may include a mechanism for closing the auxiliary flow lines of one or both components upon disconnection of the fluid connection between the two components. | 09-17-2009 |
| 20090266535 | FLEXIBLE COUPLING FOR WELL LOGGING INSTRUMENTS - A flexible coupling for well logging instruments includes a housing coupled at one longitudinal end to one end of a second housing. Each of the housings defines a sealed interior chamber. The housings are coupled to enable angular deflection between respective longitudinal axes thereof. A conduit extends between the housings. The conduit is sealingly engaged to each housing such that longitudinal ends of the conduit are substantially positionally fixed with respect to each housing. The conduit is formed from material and has dimensions selected to withstand at least a same hydrostatic pressure as each of the housings. The conduit includes a bending strain distribution feature configured such that at a maximum angular deflection between housings a bending strain in the conduit is at most equal to an elastic limit of the conduit. | 10-29-2009 |
| 20090301711 | Mechanically Engaged and Releasable Connection System - An apparatus for mechanically engaging and releasably coupling two tubular members may include a first housing member, a second housing member and a piston member, wherein, in a first position, the first and second housing members are fixed relative to each other by the piston, and wherein, in a second position, the second housing member is rotatable relative to the first housing member. Certain embodiments include matingly engaged axially disposed and axially offset splines. Other embodiments include first and second interlocking mechanisms that are in an opposed relationship to couple first and second tubular members in a fixed position. Some embodiments include a method of reacting a first rotational coupling against a second axial coupling to resist both axial and rotational movement between first and second tubulars. Other embodiments include displacing a moveable member to both axially and rotationally release first and second tubulars. | 12-10-2009 |
| 20090321069 | SYSTEM AND METHOD FOR CONNECTING MULTIPLE STAGE COMPLETIONS - A technique is provided to facilitate connection of multiple stage completions. A first completion stage is deployed at a wellbore location. Subsequently, the next completion stage is moved downhole into engagement with the first completion stage. The completion stages each have communication lines that are coupled together downhole via movement of the completion stages into engagement. | 12-31-2009 |
| 20100018699 | Low Stress Threadform with a Non-conic Section Curve - In one aspect of the present invention a threadform has a load bearing flank and a non-load bearing flank joined by a thread root. The load bearing flank tangentially joins the thread root at a first angle, and the non-load bearing flank joins the root to a second angle. The root is made of a single non-conic section curve. | 01-28-2010 |
| 20100071892 | Coiled Tubing Quick Connect - A bottom hole assembly supported by coiled tubing has components attached to each other with quick connections that do not require threading to provide the integral connection capable of supporting the BHA's required, torque, tensile and pressure loads. This quick connect feature provides torque transmission capability and does not need rig equipment such as tongs for makeup. Connecting the components is faster and safer particularly when the connections have to be made well above a rig floor. The lower end of the coiled tubing connector can also be provided with a quick connection half to mate with the uppermost tool in the bottom hole assembly. | 03-25-2010 |
| 20100101780 | PROCESS OF APPLYING HARD-FACING ALLOYS HAVING IMPROVED CRACK RESISTANCE AND TOOLS MANUFACTURED THEREFROM - Industrial tools having an outer diameter surface protected from abrasion due to silicious materials present in the Earth's crust by a layer of a hard-facing alloy with improved crack resistance, improved wear resistance, and improved hardness are provided. Additionally, a process for applying the hard-facing alloy to the surface of the industrial tools is described. | 04-29-2010 |
| 20110083841 | DRILL PIPE - A drill pipe assembly includes an elongate drill pipe and a drill pipe extension. The elongate drill pipe has a first threaded end and a second threaded end. The drill pipe extension has a first threaded end and a second threaded end. The second threaded end matingly engaging the first threaded end of the elongate drill pipe. The first threaded end being adapted to matingly engage an additional component of a drill string. The drill pipe extension has an external upset. The external upset has recessed flow paths. | 04-14-2011 |
| 20110108267 | WIRED DRILL PIPE CABLE CONNECTOR SYSTEM - A technique facilitates the conveyance of signals along a drill pipe. A cable system is combined with the drill pipe and attached along the drill pipe to convey signals. The cable system may comprise a conductive cable, a cable retention system, a cable termination, and a cable connector coupled to the conductive cable at the cable termination. | 05-12-2011 |
| 20110146972 | ELECTRICAL CONTACT CONNECTIONS FOR WELLBORE TOOLS - A logging-while-drilling (LWD) tool includes a bottomhole assembly (BHA); an electronic device carried on the BHA; and a bunched wire contact providing an electrical connection between the electronic device and a electrical power source at the BHA. The bunched wire contact includes a plurality of wires each of which has sufficient capacity to provide the requisite electrical current for operation of the electronic device. | 06-23-2011 |
| 20110174482 | COMPONENT FOR DRILLING AND OPERATING HYDROCARBON WELLS - A component used for drilling and operating hydrocarbon wells which is substantially tubular in form, and including a first end configured to be connected to a second end of another component also used for drilling and operating hydrocarbon wells. The first end includes a terminal portion including a first abutment surface configured to cooperate by interference with a corresponding abutment surface on the second end, and including a sealing surface configured to cooperate by interference with a corresponding sealing surface on the second end, the terminal portion being preceded by a threaded zone configured to be made up into a corresponding threaded zone of the second end. A compressible volume is provided in the thickness of the first terminal portion and partially beneath the sealing surface, to reduce radial stiffness of the terminal portion by at least 20%, while conserving at least 60% of axial stiffness. | 07-21-2011 |
| 20110203790 | SYSTEM AND METHOD FOR SEALING COUPLINGS IN DOWNHOLE TUBING STRINGS - For oil production systems, an interior two-part seal ring of resilient material is disposed within a coupling sleeve which receives threaded tubing ends in its opposite ends. The seal is asymmetric, with tapered ends of different lengths and taper angles. A length for mill end engagement is shorter than the length for field end engagement which may be made up and disconnected repeatedly. The seal configuration includes a principal body with a inwardly directed ridge between its tapered ends and a reinforcing ring of different, less permeable material, abutting the ridge and closing off one or more radial ports in the wall of the body. The central body also includes a circumferential gas groove about is periphery, which together with the radial ports, facilitates collection and release of gases permeating the seal body under high down-hole pressures. | 08-25-2011 |
| 20110226468 | OFFSET JOINT FOR DOWNHOLE TOOLS - A variable offset joint is provided for downhole tools, including a first downhole member, a second downhole member, and at least one intermediate element pivotally coupled at a first end to the first downhole member and at a second end to the second downhole member. The variable offset joint further includes a coupler member adapted to maintain a predetermined lateral offset between the first and second downhole members. The coupler member further includes a zone of weakness adapted to fracture when a tensile force applied thereto exceeds a predetermined threshold. In one example, a plurality of intermediate elements are each pivotally coupled to the first and second downhole members. In another example, the coupler member extends between at least two of the plurality of intermediate elements. In another example, adjusting a length of the coupler member selectively adjusts the predetermined lateral offset. | 09-22-2011 |
| 20110272140 | FIELD JOINT FOR A DOWNHOLE TOOL - A field joint for connecting a plurality of downhole tool modules is disclosed. The modules include a housing and an electrical line. A bulkhead is coupled to a first module that includes a first conduit aperture for receiving an electrical connector assembly. The first electrical connector assembly is releasably coupled to the exterior portion of the first module and includes a first connector having a first end adapted for electrical coupling to an electrical line. A connector block is coupled to the second module that includes a second conduit aperture positioned to substantially face the first conduit aperture when the first and second modules are joined. A second electrical connector is disposed in the second conduit aperture and is electrically coupled to an electrical line such that an electrical contact is established with a second end of the first connector when the first and second modules are joined. | 11-10-2011 |
| 20110290476 | WELL ASSEMBLY COUPLING - Assemblies that can be disposed in a subterranean bore and that can facilitate branch wellbore creation are described. An assembly can include threadedly coupled components having inner and outer sealing members in grooves. The sealing member can cooperate with the components to provide a pressure seal. The assembly can also include a venting member for equalizing pressure in a chamber defined by the coupled components. One of the components can be made from aluminum. At least part of that component can be coated with a coating material that is nonconductive. | 12-01-2011 |
| 20120118563 | ISOLATING WET CONNECT COMPONENTS FOR DEPLOYED ELECTRICAL SUBMERSIBLE PUMPS - An electric motor of an electric submersible pump is electrically isolated from a power conduit for diagnostic testing of the power conduit and wet connection components in place within a wellbore. The electric motor is electrically connected to the power conduit through a wet connection assembly having motor leads in electrical connection with a transfer contact and a receptacle assembly disposed on a tubing string having a supply contact electrically connected to the power conduit. Electric power flows through the power conduit, through the supply contact, through the transfer contact, and through the motor leads to the motor. The supply contact and the transfer contact are separated by a sliding sleeve that hydraulically inserts between the contacts, insulating the transfer contact and grounding the supply contact for testing. The contacts may also be separated by a relative rotation of the assemblies that grounds the supply contact for testing. | 05-17-2012 |
| 20120205095 | WELLBORE METHOD AND APPARATUS FOR COMPLETION, PRODUCTION AND INJECTION - Apparatus associated with the production of hydrocarbons comprising a joint assembly comprising a main body portion having primary and secondary fluid flow paths, wherein the main body portion is attached to a load sleeve assembly at one end and a torque sleeve assembly at the opposite end. The load sleeve may include at least one transport conduit and at least one packing conduit. The main body portion may include a sand control device, a packer, or other well tool for use in a downhole environment. Included is a coupling assembly having a manifold region in fluid flow communication with the second fluid flow path of the main body portion and facilitating the make-up of first and second joint assemblies with a single connection. | 08-16-2012 |
| 20120222858 | DRILL ROD - The invention relates to a drill rod having at least two rod elements, which are connected to each other in a rotationally fixed and detachable manner, wherein the rod elements each have an inner pipe and an outer pipe, between which a ring-shaped receiving space is formed, the rod elements each have an energy and/or data line, which extends along a longitudinal axis of the drill rod, and the energy and/or data lines of the rod elements are each connected to an induction coil, wherein the induction coils can be coupled to each other inductively for energy and/or data transmission along the drill rod. A first rod element has an inner induction coil located at an outer circumference of its inner pipe and a second rod element has an outer induction coil located at an inner circumference of its outer pipe. | 09-06-2012 |
| 20120312527 | GALLING-RESISTANT THREADED TUBULAR COMPONENT, AND PROCESS FOR COATING SAID COMPONENT - A galling-resistant threaded tubular component for drilling or operating hydrocarbon wells is described, said tubular component having at one of its ends ( | 12-13-2012 |
| 20130020072 | Threaded Pipe Connection with a Pressure Energized Flex-Seal - A threaded pipe connection is shown which features a pressure energized flex-seal structure. The connection includes a first box member having a box end, the box end having an end opening defining an interior surface with internal threads, the internal threads being defined by crests and roots and opposing flanks. A second, mating pin member has a pin end with a pin nose, the pin end having an exterior surface with mating external threads, the external threads also having crests and roots and opposing flanks, at least selected ones of which move into engagement with the internal threads of the box when the connection is made up. A flex-seal region is located on either the box and interior surface or the pin end which forms a primary containment seal upon make up of the connection. | 01-24-2013 |
| 20130075083 | THREADED END OF A TUBULAR COMPONENT FOR DRILLING OR WORKING HYDROCARBON WELLS, AND RESULTING CONNECTION - A threaded end ( | 03-28-2013 |
| 20130105146 | Perforating Gun Spacer | 05-02-2013 |
| 20130319655 | DOWNHOLE SAFETY JOINT - A downhole safety joint for use in a wellbore, including an upper tubular member having an upper threaded end and a lower external threaded section; a lower tubular member having a lower threaded end and an upper interior threaded section for engaging with the lower external threaded section to form a break joint, the break joint having one or more of a maximum compressive stress limit and a tensile stress limit; and one or more circumferential stress reliefs disposed into the outer diameter of at least one of the upper tubular member and the lower tubular member for transmitting a side load applied to the break joint to one or more of the circumferential stress reliefs less than one or more of the compressive stress limit and the tensile stress limit. | 12-05-2013 |
| 20130327518 | IMPROVEMENTS RELATING TO CORE BARREL OUTER TUBES - Described herein is a “cross-over” connector that can be used with core barrel outer tubes to prevent damage and destruction when they are connected to one another by automated equipment on a rig floor, for example, automated rig-floor torque wrenches. Standard core barrel outer tubes having a pin connector and a box connector are modified by adding “cross-over” sub elements to the pin and box connectors to increase their effective strength. The sub elements include portions which engage respective ones of the pin and box connections. The sub elements are designed to be the contact points for the automated equipment, so that it they are damaged, they can readily be replaced at a lower cost when compared to the scrapping and replacement of the core barrel outer tubes themselves. | 12-12-2013 |
| 20130333876 | Systems and Methods of Supporting a Multilateral Window - Disclosed are systems and methods of supporting a multilateral window or casing joint from pressurized collapse. In one embodiment, a casing joint assembly is disclosed and includes a casing joint having a pre-milled window defined therein, a sleeve arranged at least partially about the casing joint and configured to cover the pre-milled window, and one or more reinforcing members arranged about the casing joint and interposing the casing joint and the sleeve. The one or more reinforcing members are configured to provide radial support to the sleeve. | 12-19-2013 |
| 20140060817 | HEAVY DUTY ROPE SOCKETS AND RELATED METHODS - A rope socket comprises a slip cone subassembly having a straight outer diameter and a tapered inner diameter. A plurality of slips is positioned within the slip cone body. A retainer ring holds the slips together. A guide plug is positioned within the slips to maintain the slips in an opening position during insertion of a cable. A spring stabilizer having a spring thereon is coupled above the slip cone assembly to ensure even compression of the spring. A safety slot is located on the body of the rope socket in order to provide a visual indication of the cable position. | 03-06-2014 |
| 20140209296 | TUBE LOCKING MECHANISM FOR DOWNHOLE COMPONENTS - An apparatus for securing a transmission line in a downhole component includes: an element coupled to an exterior surface of the transmission line, the transmission line configured to be disposed in a communication conduit that extends through the downhole component, the element configured to restrict axial movement of the transmission line within the communication conduit. | 07-31-2014 |
| 20140326448 | FLEXIBLE CONNECTIONS - A double shoulder threaded tool joint connection comprising: a pin with external threads formed between a pin external shoulder and a pin internal shoulder, the pin having a nose section between the pin internal shoulder and the pin external threads; a box with internal threads formed between a box external shoulder and a box internal shoulder; wherein the internal threads and the external threads are arranged and designed for connection with each other so that the box and the pin are connected with a common center-line and with a primary seal formed by the pin external shoulder forced against the box external shoulder and a secondary seal formed between the pin internal shoulder forced again the box internal shoulder and wherein the internal threads and the external threads comprise: stab flanks having stab flank angles of between 20° and 40° measured from the thread axis and load flanks having first load flank angles of between 60° and 80° measured from the thread axis and second load flank angles of between 100° and 120° measured from the thread axis. | 11-06-2014 |
| 20150292275 | TAPERED THREAD CONFIGURATION WITH IMPROVED DURABILITY - Underground drilling operation often requires connecting a drill tool (e.g., drill bit, backreamer, etc.) to a drill string. It is desirable to connect the drill tools to a drill string in a manner that facilitates quick and easy assembly and disassembly. Low torque coupling, commonly referred to as “torque-less” connection, can provide such functionality. The useful life and strength of such connections can be improved upon. The present disclosure provides a low torque coupling with improved strength and durability. | 10-15-2015 |
| 20150315899 | APPARATUS FOR ANGULAR ALIGNMENT OF DOWNHOLE SENSORS WITH HIGH SIDE IN DIRECTIONAL DRILLING - Adjustment of the angle of a bent sub or other steering feature in a drill string relative to a reference angle of a downhole sensor is facilitated by a rotatable coupling between the bend sub and the sensor. The rotatable coupling may be rotated to align the high side with a reference indicia and locked at the set angle. Calibration of the sensor is facilitated and opportunities for certain measurement errors are eliminated. An embodiment provides a locking mechanism comprising tapered locking fingers which are clamped against a surface by a tapered collar. Rows of ceramic balls retained in circumferential channels may be provided to permit rotation while carrying tensile and compressional forces. | 11-05-2015 |
| 20150361728 | Cold Forming and Heat Treatment Process for Tubulars - A method for forming an elongated tubular member for use with hydrocarbon production includes forming a blank member of a steel material having an outer diameter equal to a first outer diameter. The blank member is mounted on a rotating mandrel. A tubular member is formed by engaging a rotary disk with an outer surface of the blank member and moving the rotary disk in a first axial direction, lengthening the blank member in a second axial direction and reducing the outer diameter of the blank member until the outer diameter of a central portion of the blank member is equal to a second outer diameter and the outer diameter of end portions of the blank member is equal to a third outer diameter. The tubular member is heat treated to reduce a residual stress. A mechanical connection is formed in each of the end portions. | 12-17-2015 |
| 20150368987 | THREADED JOINT FOR STEEL PIPES - A threaded joint in which the outer peripheral face of the pin nose has a single tapered shape, the seal face of the box has an outwardly convex curved shape, and a seal point x | 12-24-2015 |
| 20160010398 | METHOD AND SYSTEM FOR SETTING A METAL SEAL | 01-14-2016 |
| 20160024856 | DRILL STRING COMPONENTS HAVING MULTIPLE-THREAD JOINTS - Drill string components having a plurality of threads extending around a body. A first end of body can define first and second cylindrical shoulders that are spaced apart relative to a central axis of the body, and at least two threads can extend between the first and second cylindrical shoulders. The first and second cylindrical shoulders have respective cylindrical inner and outer surfaces. Optionally, each thread can have a thread root, a thread crest, and a pressure flank surface extending radially from the thread root to the thread crest and defining a pressure flank angle relative to a plane perpendicular to the central axis. Optionally, the thread crest of at least one thread can circumscribe a frusta-conical surface extending over at least a portion of the axial length of the plurality of helical turns of the thread. | 01-28-2016 |
| 20160076316 | ANTI-ROTATION DEVICE FOR PIPE STRING - Disclosed is a tubular pipe string element having a pin connector and a box connector complementary to the pin connector. The pin and box connectors are rotationally engageable with the respective box and pin connectors of another pipe string element and have complementary anti-rotation devices that cooperate to prevent unintentional relative rotation between the connectors. The anti-rotation devices may include saw-tooth profiled, radially extending teeth and a steep trailing tooth flank angle for the pin member, and at least one detent member formed on the pipe string element for the box connector. When securing the pin and box connectors, the leading flanks of the teeth engage with the detent members while allowing the connectors to rotate into a fully connected position. The steep trailing tooth flank is trapped by the detent member when in the fully connected position to prevent unintentional release of the connection. | 03-17-2016 |
| 20160168922 | CABLE PROTECTING DEVICE | 06-16-2016 |
| 20160201403 | Composite Sucker Rod Assemblies | 07-14-2016 |
| 166242700 | Telescopic | 2 |
| 20090283256 | DOWNHOLE TUBULAR LENGTH COMPENSATING SYSTEM AND METHOD - Disclosed herein is a downhole tubular length compensating system. The system includes, a tubular having a plurality of length adjustable sections, and spacings between adjacent length adjustable sections are set to overcome frictional forces anticipated along the tubular. | 11-19-2009 |
| 20130175028 | Downhole Shock Absorber with Guided Crushable Nose - A shock absorbing system has a nose assembly that is formed to inwardly collapse on impact and is guided by a sleeve that can slide with the nose as the nose collapses or can extend for a portion of the length of the nose while being held fixed. In the latter instance the nose can have a leading end that has a biasing member in a resilient material so that on impact some of the shock is taken up by compression of the biasing member with subsequent extension of the biasing member retracting the resilient covering so that it is less likely to bind in the surrounding tubular. The leading end of the sleeve or the resilient material encasing the biasing member also soften the blow to a closed ball when the tool is dropped so that the ball surface is less likely to mar. | 07-11-2013 |
| 166242800 | Shoe detail | 2 |
| 20080236813 | Shoe - A tubing shoe ( | 10-02-2008 |
| 20100132938 | CONDUCTOR PIPE STRING DEFLECTOR AND METHOD OF USING SAME - An apparatus for deflecting a tubular string preferably comprising at least one side nozzle near the lower end of a first tubular string. The nozzle permits passage of a fluid therethrough from the first tubular string bore and deflects the first tubular string in a substantially horizontal direction. A second tubular string may be lowered over the deflected first tubular string. The second tubular string and the first tubular string are preferably lowered into the sea floor for maintaining their deflection. A method for deflecting a first tubular string and securing the first tubular string in the deflected state preferably comprises lowering the first tubular string axially so that the lower end of the first tubular string is near the sea floor. Preferably, a fluid, such as seawater, is propelled down through the bore of the first tubular string and through at least one side nozzle near the lower end of the first tubular, wherein the fluid moving through the side nozzle deflects the first tubular string. The first tubular string end is preferably lowered into the sea floor for maintaining the deflection of the first tubular string. A second tubular string may then be slidably lowered over the first tubular string for deflecting the second tubular string. | 06-03-2010 |
