| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 166244100 |
PROCESSES
| 9761 |
| 166335000 |
SUBMERGED WELL
| 1172 |
| 166750110 |
ABOVE GROUND APPARATUS
| 443 |
| 166179000 |
PACKERS OR PLUGS
| 362 |
| 166316000 |
VALVES, CLOSURES OR CHANGEABLE RESTRICTORS
| 310 |
| 166650100 |
WITH ELECTRICAL MEANS
| 252 |
| 166206000 |
EXPANSIBLE ANCHOR OR CASING
| 123 |
| 166055000 |
MEANS FOR PERFORATING, WEAKENING, BENDING OR SEPARATING PIPE AT AN UNPREPARED POINT
| 103 |
| 166241100 |
GUIDE FOR DEVICE OR CONDUIT
| 89 |
| 166105000 |
WITH EDUCTION PUMP OR PLUNGER
| 88 |
| 166242100 |
CONDUIT WALL OR SPECIFIC CONDUIT END STRUCTURE
| 77 |
| 166227000 |
SCREENS
| 76 |
| 166067000 |
WITH BELOW AND ABOVE GROUND MODIFICATION
| 74 |
| 166057000 |
WITH HEATING, REFRIGERATING OR HEAT INSULATING MEANS
| 73 |
| 166053000 |
AUTOMATIC
| 60 |
| 166170000 |
BRUSHING, SCRAPING, CUTTING OR PUNCHING-TYPE CLEANERS
| 29 |
| 166117500 |
MEANS FOR GUIDING INSERTABLE ELEMENT LATERALLY OF WELL AXIS (E.G., WHIPSTOCK)
| 21 |
| 166177500 |
HYDRAULIC FRACTURING DEVICE
| 21 |
| 166051000 |
MEANS FOR FORMING FILTER BEDS (E.G., GRAVEL PLACING)
| 21 |
| 166243000 |
MISCELLANEOUS (E.G., ANCHOR PIPES)
| 20 |
| 166237000 |
DETENTS OR CLUTCHES
| 19 |
| 166222000 |
WHIRLING OR LATERAL DISCHARGE OR PROJECTABLE NOZZLES
| 19 |
| 166099000 |
WITH JUNK RETRIEVING MEANS
| 18 |
| 166050000 |
WELLS WITH LATERAL CONDUITS
| 17 |
| 166178000 |
WITH JAR MEANS FOR RELEASING STUCK PART
| 17 |
| 166162000 |
RECEPTACLES
| 16 |
| 166205000 |
SCREEN WITH VALVE, CLOSURE, CHANGEABLE RESTRICTOR OR PORTION REMOVABLE IN WELL
| 14 |
| 166153000 |
PISTONS, FLUID DRIVEN INTO WELL (E.G., CEMENTING PLUGS)
| 14 |
| 166101000 |
PACKER OR PLUG AND PUMP OR PLUNGER MEANS EXERTING OUTWARD PRESSURE
| 13 |
| 166113000 |
COMBINED (E.G., WITH NON-ELECTRICAL INDICATING)
| 11 |
| 166052000 |
PLURAL WELLS
| 10 |
| 166063000 |
WITH EXPLOSIVE OR GAS GENERATING MEANS IN WELL
| 10 |
| 166177400 |
CEMENTING DEVICE
| 9 |
| 166177600 |
VIBRATOR
| 9 |
| 166098000 |
GRAPPLE AND WELL ANCHORED LIFTING MEANS
| 9 |
| 166115000 |
CENTRAL CHAMBER SEALED WITH RESPECT TO PREPOSITIONED MODIFIED SURROUNDING CONDUIT
| 8 |
| 166056000 |
SCREEN AND OUTSIDE CLEANING PIPE | 5 |
| 20080196879 | Mechanically coupled screen and method - A particulate exculder tool includes a basepipe having one or more retention features; a screen jacket disposed radially outwardly of the basepipe; one or more end housings at the screen jacket; and a deformable element disposed between a portion of the one or more end housings and one or of the one or more retention features and method. | 08-21-2008 |
| 20090078403 | WELL SCREEN - A screen assembly connected about a perforated base pipe includes a filter layer constructed of layers of woven metal cloth sintered together; a drainage layer positioned between the base pipe and the filter layer, the drainage layer sintered to the filter layer; and a support layer constructed of woven metal rods and metal cable disposed about the filter layer, the support layer sintered to the filter layer. | 03-26-2009 |
| 20100101773 | Methods of Cleaning Sand Control Screens and Gravel Packs - Methods for remediating a subterranean environment. Methods comprising introducing a cleanup fluid through a well bore and into a portion of a subterranean formation penetrated by the well bore, applying a pressure pulse to the cleanup fluid, and introducing a consolidating agent through the well bore and into the portion of the subterranean formation. Methods of cleaning a sand control screen comprises introducing a cleanup fluid through a sand control screen and into a portion of a subterranean formation, the sand control screen located in a well bore that penetrates the subterranean formation; applying a pressure pulse to the cleanup fluid; and introducing a consolidating agent through the sand control screen and into the portion of the subterranean formation. | 04-29-2010 |
| 20110073296 | SYSTEM AND APPARATUS FOR WELL SCREENING INCLUDING A FOAM LAYER - An apparatus for screening earth formation components includes: a base pipe configured to allow the passage of formation fluid therethrough; and a foam layer disposed radially outwardly of the base pipe and configured to allow the passage of formation fluid therethrough and minimize the passage of formation solids therethrough, the foam layer including a plurality of hollow structures forming windows therebetween. A method of manufacturing an apparatus for screening earth formation components is also disclosed. | 03-31-2011 |
| 20130284421 | SAND CONTROL DEVICE CLEANING SYSTEM - Certain aspects and embodiments of the present invention are directed a sand control device cleaning system that can be disposed in a wellbore through a fluid-producing formation. The sand control device cleaning system can include a housing and a fluid communication structure. The housing can be coupled to a section of a tubing string of a well system. A portion of the housing or a container disposed within the housing can store a dissolving material. A dissolving fluid that can dissolve or otherwise remove particulate material can be formed from the dissolving material. The fluid communication structure can communicate the dissolving fluid from the housing to a sand control device coupled to the section of the tubing string. | 10-31-2013 |
| 166177100 |
SONIC DEVICE | 5 |
| 20130000886 | SONIC OIL RECOVERY APPARATUS FOR USE IN A WELL - A sonic oil recovery apparatus for use in a well has an injector tubing extending interior of the casing of the well, and a resonator tube affixed to or within the injector tubing. The resonator tube has an interior flow pathway so as to allow a fluid to flow therethrough from the injector tubing. The resonator tube is suitable for transmitting an acoustic signal approximately equal to the resonate frequency of a formation in the well. The resonator tube can have a plurality of orifices plates formed therein such that the fluid flowing through the resonator tube generates the acoustic signal. The resonator tube can alternatively be a solid state acoustic resonator therein. | 01-03-2013 |
| 20140144618 | HYDRODYNAMIC PULSE TOOL - A hydrodynamic pulse tool and method for cleaning, stimulation and production enhancement of oil, gas and injection wells by propagating successive pressure waves through the wellbore and/or the producing/injecting formation in a directional or vectored manner. The tool comprises a resonance chamber defined by a generally cylindrical hollow tubular member adapted for connection to conventional coiled or jointed tubing, and at least one hydraulically driven pulse generator rotatably disposed within the resonance chamber. The hydraulic force of pressurized fluid pumped through the tool drives the rotation of the at least one pulse generator, which generates successive sequential hydraulic pressure pulses in a sequential, sequential offsetting and/or sequential reinforcing manner. | 05-29-2014 |
| 20090008082 | SOUND SOURCE FOR STIMULATION OF OIL RESERVOIRS - The present invention relates to a sound source for the stimulation of an oil reservoir or an oil well for enhanced oil recovery or for seismic logging of the reservoir. The sound source is operated by a pressurized gas from a compressor or a pressure tank on the surface, and the gas is transported to an in the sound source situated cylinder with an accumulator, via a feed line. | 01-08-2009 |
| 20110011576 | ACOUSTIC GENERATOR AND ASSOCIATED METHODS AND WELL SYSTEMS - A well system and associated method can include an acoustic generator which can be used to excite a formation with acoustic waves transmitted from the acoustic generator. Another well system and associated method can include an acoustic generator which can transmit acoustic waves into cement surrounding a casing. Another well system and associated method can include an acoustic generator which can be used to transmit acoustic waves into an annulus surrounding a well screen during or after a gravel packing operation. Another well system and associated method can include an acoustic generator which can be connected in a drill string in close proximity to a drill bit, with the acoustic generator transmitting acoustic waves into a formation ahead of the bit. | 01-20-2011 |
| 20140202683 | ULTRASONIC WELLBORE DEWATERING DEVICE, SYSTEM AND METHOD - An ultrasonic device and system is provided for specific application to unloading non-gaseous production (typically mineralized water which may or may not be associated with produced solids and/or hydrocarbon liquids) from gas producing wells. In one embodiment, the system comprises an ultrasonic particle generator bank, including a transformer as needed (geometry of bank varies depending on down hole configurations) with multiple ultrasonic sources for redundancy/longevity and particle formation rate control. The multiple ultrasonic sources may be powered electrically from the surface, or by other means, with a length management conveyance system. The ultrasonic sources may be buoyed at substantially optimal depth below the surface of the non-gaseous production being particlized. | 07-24-2014 |
| 166064000 |
WITH TIME OR DISTANCE MEASURING, TEMPERATURE RESPONSIVE OR COUNTING MEANS | 4 |
| 20110174478 | Apparatus for continuous downhole fluid release and well evaluation - An apparatus, capable of being conveyed on wireline, for continuous downhole injection of foaming agent(s) and/or beneficial chemical(s), comprising a reservoir and means for dispensing foaming agent(s) and/or beneficial chemical(s) from the reservoir of such apparatus and into the surrounding wellbore environment. | 07-21-2011 |
| 20130264049 | PLUG COUNTER AND DOWNHOLE TOOL - A plug counter including a housing sized to receive and pass plugs. A helix sleeve rotatably positioned relative to the housing. The helix sleeve including a helical track having a plurality of consecutive turns. A key positionable relative to the helical track and responsive to movement of the helix sleeve in a first rotational direction, wherein the key prevents further movement of the helix sleeve in the first rotational direction after a selected number of plugs pass through the plug counter. Also included is a downhole tool including | 10-10-2013 |
| 20150007976 | METHOD AND APPARATUS FOR PERMANENT MEASUREMENT OF WELLBORE FORMATION PRESSURE FROM AN IN-SITU CEMENTED LOCATION - A pressure gauge system and a method for in-situ determination of a wellbore formation pressure through a layer of cement, where the pressure gauge system comprises: a housing arranged to be permanently installed in the cement on the outside of a wellbore casing, wherein said housing comprises a pressure sensor with an output pressure signal, wherein: the pressure gauge system further comprises: a first temperature sensor with a first temperature signal, a second temperature sensor with a second temperature signal; and a computer implemented compensation means arranged to receive the pressure signal, the first and second temperature signals, and calculate a temperature compensated output pressure signal. | 01-08-2015 |
| 20160032684 | Downhole Tool With Counting Mechanism - An object counting mechanism for a downhole tool which includes a tool housing having a central passage and a seat configured to selectively catch an object passing through the central passage. An activating mechanism is configured to move the seat from a first state allowing the object to pass through the seat into a second state for catching the object on the seat. A rotating sleeve causes the activating mechanism to move the seat into the second state after a given degree of rotation of the rotating sleeve. At least one contact surface is spaced apart from the seat and positioned to engage the object passing through the central passage, thereby effecting a limited rotation of the rotating sleeve at each passage of an object. | 02-04-2016 |
| 166114000 |
CENTRAL MEMBER WITH PRE-SET PACKER OR PLUG IN SAME CONDUIT | 4 |
| 20090114383 | GAS LIFT APPARATUS FOR FLUSHING AND SNUBBING WELL - A gas lift production apparatus is provided for use in flushing and snubbing well operation. The apparatus comprises upper production string and lower production string. The upper production string includes at least one side pocket mandrel carrying a gas lift valve, tubular strings connected with every side pocket mandrel, a sliding sleeve installed as part of the production string below side pocket mandrels and a latch seal assembly threaded in the tubular string below the sliding sleeve. The lower production string includes a single bore packer below the latch seal assembly, tubular strings, a landing nipple and a bell mouth at the bottom of the production string. The upper production string are run in and removed as a single unit from the packer which is anchored within the well casing. It is emphasized that this apparatus is provided with three functions such as producing a gas lift well, flushing well and snubbing well operation. Application of the apparatus will prevent flushing or killing fluid from polluting the reservoir and increase production efficiency. | 05-07-2009 |
| 20140262207 | BALL CHECK VALVE INTEGRATION TO ICD - A production sleeve assembly for use downhole comprises a fluid pathway configured to provide fluid communication between an exterior of a wellbore tubular and an interior of the wellbore tubular, a flow restriction disposed in the fluid pathway, and a valve disposed in series with the flow restriction in the fluid pathway. The valve comprises: a rupture disk and a plug releasably engaged in the fluid pathway in series with the rupture disk. The valve is configured to allow production from the exterior of the wellbore tubular to the interior of the wellbore tubular through the chamber without producing past the plug once the rupture disk is actuated. | 09-18-2014 |
| 20150068727 | Subterranean Tool for Release of Balls Adjacent Their Intended Destinations - A subterranean tool can drop multiple objects to landing locations in a tubular string. The tool can keep at least one ball out of the fluid stream until ready for release. A dart or wiper plug can be kept in the fluid stream with an open bypass until axial mandrel movement allows release of the plug or dart. The tool is rotationally locked at a lower location for run in and then can rotationally lock at an upper location upon release of the dart or ball shifting relative rotation capabilities to different members. Axial movement that releases the dart also aligns a ball with a decreasing depth groove so that relative part rotation can cam the ball against a leaf spring detent and into the mandrel flow path. | 03-12-2015 |
| 20150330196 | SYSTEMS AND METHODS FOR INJECTING FLUIDS INTO A SUBTERRANEAN FORMATION - There is provided apparatuses, systems, and methods for effecting injection of injection fluids into a subterranean formation, including: a bundled plurality of fluid-conducting conduits. | 11-19-2015 |
| 166117000 |
RECEPTACLE OR PART THEREOF LEFT IN WELL | 4 |
| 20110000662 | Motion Transfer from a Sealed Housing - A source of motion for actuation of a downhole tool is in a sealed housing to protect it from well fluids. The sealed housing is filled with an incompressible fluid and thermal effects can be compensated preferably with a compensation bellows in communication with the fluid. The source of motion is preferable electrically powered and the longitudinal motion that results presses against a bellows within the sealed housing. This master bellows is in sealed contact with a slave bellows through a rigid housing that is seal welded to the housing wall. Movement of the master bellows in the housing results in an equal movement of the slave bellows outside the housing. Feedback loops or calibration for thermal effects are also contemplated. | 01-06-2011 |
| 20110024106 | Ball Catcher with Retention Capability - A ball catcher is designed to stop balls that are the same size or different sizes at an inlet on a seat that is connected to a movable biased sleeve. Once the ball or other shaped object lands at the seat the flow around it increases differential pressure on the seat and sleeve and displaces them against the bias. The ball goes into a surrounding annular space and cannot exit. A preferably spiral sleeve guide the movement of the balls in the annular space so that efficient use of the annular space is made to maximize the number of balls that can be captured per unit length of the annular space. As soon as the ball enters the annular space the sleeve shifts back to the original position to stop the next ball at the inlet. Once in the annular space, the balls cannot escape if there is a flow reversal. The central passage remains open to pass other tools and flow. | 02-03-2011 |
| 20130118729 | PREVENTING FLOW OF UNDESIRED FLUID THROUGH A VARIABLE FLOW RESISTANCE SYSTEM IN A WELL - A flow control system for use with a subterranean well can include a flow chamber through which a fluid composition flows, and a closure device which is biased toward a closed position in which the closure device prevents flow through the flow chamber. The closure device can be displaced to the closed position in response to an increase in a ratio of undesired fluid to desired fluid in the fluid composition. A structure can prevent the closure device from being displaced to the closed position. The fluid composition can flow through the structure to an outlet of the flow chamber. | 05-16-2013 |
| 20140144616 | PREVENTING FLOW OF UNDESIRED FLUID THROUGH A VARIABLE FLOW RESISTANCE SYSTEM IN A WELL - A flow control system for use with a subterranean well can include a flow chamber through which a fluid composition flows, and a closure device which is biased toward a closed position in which the closure device prevents flow through the flow chamber. The closure device can be displaced to the closed position in response to an increase in a ratio of undesired fluid to desired fluid in the fluid composition. A structure can prevent the closure device from being displaced to the closed position. The fluid composition can flow through the structure to an outlet of the flow chamber. | 05-29-2014 |
| 166100000 |
LATERAL PROBE OR PORT SEALED AGAINST WELL WALL | 3 |
| 20130112396 | Seal for a Wellbore - A seal apparatus for closing a wellbore, the apparatus being universally deployable and capable of closing the wellbore even in the case of damage located beneath a present blowout preventer. The apparatus is based on the idea of introducing a seal into the wellbore in order to close it off to avoid damage from a rising fluid. For this purpose, the seal has at least one apron, or a capsule. An opening of the apron, or distending of the capsule, causes a non-positive and/or positive connection to be produced in respect to the wall of the wellbore such that the wellbore is closed. | 05-09-2013 |
| 20160123143 | PUSHING SITTING DEVICE - A pushing sitting device includes a main base, at least one set of pushing arms are provided on the side surface of the main base. The pushing arm includes a bi-parallelogram, having a first parallelogram structure and a second parallelogram structure. The first parallelogram structure includes a front arm, a detector assembly, an assisting arm and the main base, wherein the front arm is connected to the detector assembly and the main base respectively through joint pins at two ends, while the assisting arm is connected to the detector assembly and the main base respectively through the rotating shafts at two ends. The second parallelogram includes a rear arm, the detector assembly, a nonporous assisting arm and the main base which are connected in sequence by connecting shaft. | 05-05-2016 |
| 20160146005 | FOCUSED PROBE APPARATUS AND METHOD THEREFOR - Apparatus and methods for downhole formation testing including use of a probe having inner and outer channels adapted to collect or inject injecting fluids from or to a formation accessed by a borehole. The probe straddles one or more layers in laminated or fractured formations and uses the inner channels to collect fluid. | 05-26-2016 |
| 166177700 |
AGITATOR | 3 |
| 20100132937 | Laminar Flow Tool - A laminar flow tool is for channeling water, air or other fluids through a down drill pipe or tubing for pressurization of other tools or other purposes. The tool provides a flow divider having an 180 degree twist separating a driven fluid chamber from a buffer fluid pocket. Fluid in the tool is calmed as it travels and loses some of the spin (“turbulence”) inherent in the water or other fluid. A buffer pocket on one side absorbs shocks and stabilizes the driven side. Ports in the buffer side help equalize pressure. | 06-03-2010 |
| 20120292015 | Vortex Controlled Variable Flow Resistance Device and Related Tools and Methods - A vortex-controlled variable flow resistance device ideal for use in a backpressure tool for advancing drill string in extended reach downhole operations, especially in horizontal wells. The shape, frequency and duration of the pressure waves generated by the device are controlled by the growth and decay of vortices in the vortex chamber(s) of a flow path. The flow path includes a switch, such as a bi-stable fluidic switch, for reversing the direction of the flow in the vortex chamber. The flow path may include multiple vortex chambers, and the device may include multiple flow paths, through which flow may be parallel or sequential. This device generates backpressures of short duration and slower frequencies approaching the resonant frequency of the drill string, which maximizes axial motion in the drill sting and weight on the bit. Additionally, fluid pulses produced by the tool enhance debris removal ahead of the bit. | 11-22-2012 |
| 20120292016 | Vortex Controlled Variable Flow Resistance Device and Related Tools and Methods - A vortex-controlled variable flow resistance device ideal for use in a backpressure tool for advancing drill string in extended reach downhole operations. The characteristics of the pressure waves generated by the device are controlled by the growth and decay of vortices in the vortex chamber(s) of a flow path. The flow path includes a switch, such as a bi-stable fluidic switch, for reversing the direction of the flow in the vortex chamber. The flow path may include multiple vortex chambers, and the device may include multiple flow paths. A hardened insert in the outlet of the vortex chamber resists erosion. This device generates backpressures of short duration and slower frequencies approaching the resonant frequency of the drill string, which maximizes axial motion in the drill sting and weight on the bit. Additionally, fluid pulses produced by the tool enhance debris removal ahead of the bit. | 11-22-2012 |
| 166177300 |
WIPER | 3 |
| 20090078406 | Method of Generating a Non-Plugging Hydrate Slurry - Method for reducing loss of flow due to hydrate solids deposits and wax deposition in a pipeline without the aid of chemicals and system for transporting a flow of wellstream hydrocarbons containing water, using a main pipeline and a cold-flow reactor connected to the main pipeline or within or forming a part of the pipeline, wherein at least a portion of the wellstream is fed to the cold-flow reactor. Also provided is a method for preventing hydrate nucleation and growth in a pipeline and preventing hydrate agglomeration as well as for preventing wax deposition. The provided method eliminates the use of energized equipment for melting, grinding or scraping hydrate solids from inside of pipelines or flowlines. Generating dry hydrates to be mixed with main flow of a wellstream is also described. | 03-26-2009 |
| 20090242191 | Telescoping Wiper Plug - A wiper plug has a telescoping feature to allow it to be shorter while in a lubricator so as to reduce lubricator length as compared to an extended length for proper propulsion past off center openings such as side pocket mandrels in the string. The wiper has a telescoping feature that allows it to extend when dropping or being pumped from a lubricator. Once extended, it can lock in the extended position so that it doesn't collapse on the way down the string. Centralizers can optionally be used between an upper and a lower wiping section. | 10-01-2009 |
| 20110139436 | TEMPERATURE CONDITIONED STUFFING BOX WITH FLUID CONTAINMENT - A temperature conditioned stuffing box includes a housing having an outer surface, an inner surface defining a packing-receiving bore, a lower surface for attaching to a wellhead and an upper surface. A flow passage through the housing for passing temperature-conditioned fluid through the housing has an input and an output. | 06-16-2011 |
| 166540100 |
WITH MEANS FOR SEPARATELY PUMPING FROM PLURAL SOURCES IN WELL | 3 |
| 20100132933 | METHANE HYDRATE DISSOCIATION ACCELERATING AND METHANE GAS DERIVING SYSTEM - It is an object of the present invention to provide a deriving technique with economy and technical difficulty improved without depending on fuel consumption for a heat source when methane gas is derived from a methane hydrate layer. Warm water is pumped up by a pump from an underground aquifer present 1000 to 1500 m below the seabed, geothermal energy is caused to flow through a permeable layer below a methane hydrate layer, a dissociation boundary surface of an un-dissociated area of the methane hydrate layer is dissociated to generate methane gas, the methane gas is led into a production well from peripheral areas and through a gas inlet screen and caused to rise so that the methane gas is collected on the sea. | 06-03-2010 |
| 20100230089 | DOWNHOLE SYSTEM AND AN IMMERSION HYDRAULIC MACHINE FOR EXTRACTION OF FLUIDS - The claimed invention relates to the downhole systems for extracting various fluids, in particular—for simultaneous extraction out of a number of producing formations. The inventive downhole system comprises a casing pipe and a tubing extending through said casing pipe, between which pipe and tubing formed are separate isolated cavities. Each one of which cavities communicates, via perforations, with a respective producing formation. In each one of the isolated cavities, to the tubing coupled is a hydraulic machine comprised by a motor and pump. The hydraulic machines in different isolated cavities being adapted to be adjusted independently. This system permits simultaneous extraction of fluids out of different producing formations, with independent controlling of such extraction in various formations. The claimed invention also relates to an immersion hydraulic machine used for extracting fluids. | 09-16-2010 |
| 20110132593 | SYSTEM, APPARATUS, AND METHOD FOR PRODUCING A MULTIPLE ZONES WELL - The present invention relates to a system, apparatus, and method provided to selectively produce petroleum fluid from multiple production zones well. The apparatus comprises a casing running downwardly into the well and a tubing string running in the casing. The upper and lower sealing mechanisms are provided for sealing the annular space between the casing and the tubing string, therefore, dividing the well into upper and lower production zones. Moreover, the invention comprises a bypass gaslift system provided with a tubular member, tubing string, connecting means and side pocket mandrels for injecting lifting gas into the multiple production zones well. The system and apparatus according to this invention can selectively operate to simultaneously or separately produce petroleum fluid from vertical apart multiple zones well. | 06-09-2011 |
| 166104000 |
WITH MOTOR FOR ROTARY OR OSCILLATING MOTION | 2 |
| 20100319907 | Drilling Tool with Feed Control - The present invention relates to a drilling tool ( | 12-23-2010 |
| 20160040493 | DOWNHOLE VIBRATORY APPARATUS - The present disclosure is for a vibratory downhole rotary apparatus. The apparatus includes a cylindrical hollow body, a stator disposed within the cylindrical hollow body and a rotor disposed within the stator. The apparatus also includes a flow resistance system to vary the resistance of fluid flow through the apparatus to increase and decrease backpressure across the apparatus. | 02-11-2016 |
| 166540500 |
MEANS FOR CUTTING CABLE OR ROPE BELOW GROUND | 2 |
| 20120211217 | CONTROL LINE RUNNING SYSTEM - A control line running system includes a control line storage unit and a guiding system having a guiding device and a guide rail for guiding a control line from the control line storage unit toward a well center. The system may also include a control line manipulator assembly for moving the control line toward a tubular and a control line clamp for attaching the control line to the tubular. | 08-23-2012 |
| 20150083386 | CABLE HEAD WITH CABLE SHEAR MECHANISM FOR ATTACHING TO A WIRELINE TO SUPPORT OILFIELD EQUIPMENT IN A WELLBORE - A cable head with cable shear mechanism for attaching to a wireline to support oilfield equipment in a wellbore formed from a housing with a cable bore. The housing comprises a tapered sleeve with a tapered sleeve cable bore, a sliding bell with a sliding bell cable bore, a drive pinch cylinder, a linear biasing mechanism positioned between the tapered sleeve and the drive pinch cylinder, a plurality of shear pins disposed partially into the housing and though the drive pinch cylinder, wherein each shear pin is adapted to withstand from 100 pounds to 2000 pounds of shear load, a pair of slidable cutting segments and a pair of slidable cutting segment guides. When cable load exceeds a preset limit, the shear pins shear allowing the slidable cutting segments to be moved up the slidable cutting segment guides to impact and shear the cable. | 03-26-2015 |
| 166102000 |
CONVERTIBLE | 2 |
| 20100155050 | Down hole tool - A flow back plug, a bridge plug, a ball drop plug and plug with a disintegratable check therein are made from a common subassembly including, in some embodiments, a mandrel, a slips/seal section, a setting assembly and a mule shoe. In other embodiments, the common components are a mandrel, a slips/seal section and a mule shoe. To make the flow back plug, a ball check is placed in the mule shoe. To make the bridge plug, an obstruction is inserted in the mule shoe. To make the ball drop plug, the mule shoe is left unobstructed so any ball dropped in a well seats in a tapered inlet to the mandrel. To make a plug with a disintegratable check, a ball dropped in the well is of a type that disintegrated in frac liquids. The setting assembly includes a setting rod connected to a setting device in the mandrel passage. When the plug is expanded into sealing engagement with a production string, the setting rod pulls out of the setting device leaving a passage through the mandrel and through the setting device. Another embodiment is an improved adapter sleeve used on conventional setting tools. | 06-24-2010 |
| 20140374086 | RECONFIGURABLE DOWNHOLE ARTICLE - A reconfigurable downhole article is disclosed. The article comprises a base material. The article also comprises a removable material disposed on or within the base material that is configured for removal from the base material in response to a wellbore condition, wherein the base material and the removable material define a base article that is configured to perform a first function, and wherein upon removal of the removable material, the base material defines a modified article that is configured to perform a second function that is different than the first function. | 12-25-2014 |
| 166157000 |
SCREEN WITH WASHING POINT OR SHOE | 1 |
| 20130068449 | LASER CLADDING FE-CR ALLOY ON DOWNHOLE TOOLS - A hardfacing composition composed of an Fe—Cr alloy. The alloy is comprised of 80 wt % iron, about 2 wt % to about 20 wt % Cr, less than 1 wt % Si and less than 1 wt % C. The alloy's microstructure is at least 80 vol % martensite; and less than 20 vol % austenite. | 03-21-2013 |
