| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 175062000 | Boring horizontal bores | 34 |
| 20080257604 | Conduit, manufacture thereof and fusion process therefor - A method for fusing a first conduit section to a second conduit section, each including at least one bell portion with a first end and a second end and having a bell portion inside dimension greater at the second end of the bell portion than at the first end of the bell portion. The method includes: heating and melting at least a portion of each of the second end of the bell portion of the first conduit section and the second end of the bell portion of the second conduit section; and fusing the first conduit section and the second conduit section by engaging the second end of the bell portion of the first conduit section with the second end of the bell portion of the second conduit section, thereby creating a fused conduit system having a fused joint area. | 10-23-2008 |
| 20080314643 | Drilling System and Methods of Drilling Lateral Boreholes - A drilling system, comprising: a drilling machine ( | 12-25-2008 |
| 20090000824 | Tools and technology of radical and level drilling/well completion under ultra-short radius - The invention relates to a field of extracting petroleum, particularly to tools and technology of radical and level drilling/well completion under ultra-short radius. The tools of the invention are involved with a deflecting drill tool and level drill tool. The deflecting drill tool consists of a deflecting rotary assembly, flexible drill pipe, directional follow-up tube, tail tube for deflecting drill tool, and drill pipe nipple joints; The level tool consists of a level rotary assembly, the flexible drill pipe, quick couplings, the directional follow-up tube, a tail tube for level drill tool, the drill pipe nipple joint, an adjusting nipple joint, a recessed left hand thread bushing, and convex left hand thread coupling and characterized in that: a triangle backing block is installed on outside of a casing of the deflecting rotary assembly. Rear end of the deflecting rotary assembly is connected with the flexible drill pipe by means of nuts. Splines matched with each other are provided at the level rotary assembly and the flexible drill pipe. The tail tube for level drill tool has a recessed left hand thread bushing and convex left hand thread coupling; Each of the flexible drill pipe is 140˜150 mm long. An external spline is set at the front of an inner ball and an internal spline is installed on the main body of the flexible drill pipe fixing tight with the nut. A body of the inner ball is situated in a ball bowl and in frontal part of the main body of the flexible drill pipe. Any single section of the flexible drill pipe may bend 3°-6° spacing between slots is 100-110 mm, width of the slot is 3.5-4 mm. This invention is featured level drilling under ultra-short radius with more accurate drilling, more convenient service and easier assembling. It is not only time and labor saving but also easy and convenient in service when the invention is adopted. The invention can be applied in fields of oil extraction, gas and running water. | 01-01-2009 |
| 20090032307 | Coiled Tubing Drilling System - A drilling rig for drilling an underground borehole ( | 02-05-2009 |
| 20090038854 | SYSTEM AND METHOD FOR DRILLING WELLBORES - A system and method are provided for drilling a wellbore. The wellbore is formed with a drilling tool that cuts through a formation. A pumping system removes cuttings from the drilling tool and also transports the cuttings along at least a portion of the wellbore formed behind the drilling tool. | 02-12-2009 |
| 20090101414 | Apparatus and Method for Conveyance and Control of a High Pressure Hose in Jet Drilling Operations - A jetting hose is conveyed downhole retracted within a tubing string for jetting lateral boreholes from a main wellbore, is released at the jetting depth and pumped from the tubing string and into a lateral borehole with jetting fluid. A piston is secured to the upper end of the jetting hose, and the pumped jetting fluid drives the piston. A speed control regulates the penetration rate of the jetting hose into the formation independent of the tubing string weight. | 04-23-2009 |
| 20090173544 | METHOD AND APPARATUS FOR LATERAL WELL DRILLING UTILIZING AN ABRASIVE FLUID STREAM DISCHARGED FROM A ROTATING NOZZLE - A method and apparatus for penetrating a side of a well casing and/or drilling into earth strata surrounding the well casing, utilizing a rotating fluid discharge nozzle, and an abrasive introduced into the fluid downstream of apparatus for rotating the nozzle. Apparatus for rotating the nozzle can include a motor operable by pressurized fluid, or another suitable rotating power source The introduction of the abrasives will not adversely affect or harm the apparatus for rotating the nozzle, yet will provide the enhanced drilling capability. The abrasive stream can be used for drilling or cutting through a metal well casing, as well as cement and the adjacent strata. | 07-09-2009 |
| 20090218143 | APPARATUS AND METHOD FOR POSITIONING EXTENDED LATERAL CHANNEL WELL STIMULATION EQUIPMENT - Disclosed is a movable boring assembly and a boring tool positioner for drilling a plurality of holes in a well casing and jetting a well production zone through the plurality of holes. All of the holes can be drilled in the casing at different angular positions, as well as different levels within the casing. The drilling tool can then be removed and a perforation jet can be reliably and accurately reoriented into the drilled holes to perforate a production zone in multiple directions and at multiple levels. | 09-03-2009 |
| 20090236146 | MACHINE AND METHOD FOR TRENCHLESS CONDUIT INSTALLATION - An improved machine and method of horizontal drilling is disclosed wherein the machine includes a device for producing a continuous length of conduit that surrounds the drill string for simultaneous boring and positioning of the conduit. | 09-24-2009 |
| 20090255732 | METHOD AND APPARATUS FOR LATERAL WELL DRILLING WITH ENHANCED CAPABILITY FOR CLEARING CUTTINGS AND OTHER PARTICLES - Apparatus for clearing particles from a lateral drilling operation in strata beside a well. The drilling apparatus is part of a down hole unit and is configured for extending from a lateral opening of the unit into a lateral passage in the adjacent strata, and the operation of the drilling apparatus discharges particles from the lateral passage toward the lateral opening. The invention deflects or redirects the particles discharged from the lateral passage, away from the lateral opening, to prevent clogging or blocking of an internal passage or elbow through the down hole unit, using a pressurized fluid such as a gas or an emulsion. The pressurized fluid can also be configured for carrying the particles upwardly through the well to the surface, and for reducing or removing a hydrostatic head in the well. | 10-15-2009 |
| 20090321140 | REAMER AND METHODS FOR DIRECTIONAL DRILLING - A reamer for underground boring is provided. The reamer includes at least: (a) a center mandrel, wherein the center mandrel defines a mandrel axis; (b) a plurality of radial members extending radially from the center mandrel; (c) a plurality of cutting heads, wherein each of the cutting heads: (i) is supported by at least one of the radial members; (ii) is arcuately spaced-apart around the center mandrel from the other cutting heads; (iii) has a rounded surface; and (d) a plurality of cutting teeth on the rounded surface of each of the cutting heads. A method of horizontal drilling with the reamer is also provided. | 12-31-2009 |
| 20100051350 | DRILLING OUT CASING BITS WITH OTHER CASING BITS - The drilling of a casing bit and any other equipment in the casing with another casing bit where at least two casing bits of different diameter and having associated casing sections may be assembled to form a drilling assembly for drilling subterranean formations, the at least two casing bits and casing sections are arranged in a telescoping relationship. | 03-04-2010 |
| 20100139982 | Method and Apparatus for Establishing a Manual Governor Control Setting in an Electro-Hydraulic System - An horizontal directional drilling (HDD) system having dynamically scalable control settings is disclosed. Such a system can include a drill pipe configured to attach to a boring tool, a user control having an input device moveable in position along an input range, the user control configured to output a control signal proportional to the position of the input device along the input range, a pump having an output range, the pump configured to move the drill pipe at various output levels over the output range based on the control signal, and a controller coupled to the user control and the pump, the controller configured to execute program instructions stored in memory to cause the HDD system to: perform drilling operations in a first control setting in which the output range of the pump corresponds to the input range of the user control and changes in output of the pump are proportional to positional changes of the input device along the input range, and perform drilling operations in a second control setting in which the output range of the pump is limited by a output limit and changes in output of the pump are proportionally scaled to positional changes of the input device along the input range. | 06-10-2010 |
| 20100181113 | HORIZONTAL WATERJET DRILLING METHOD - A method and apparatus for completing a lateral channel in a subterranean formation using a flexible hose with a waterjet that may be directed down a well casing and into a waterjet guide. The waterjet guide has a diverter assembly configured to receive and divert the flexible hose in a shortened radius. The diverter assembly includes an inlet curvature and a pivot curvature, where the pivot curvature pivots between stowed and deployed configurations in response to forces provided through a mandrel assembly communicably coupled thereto. | 07-22-2010 |
| 20100187012 | Method and Apparatus for Laterally Drilling Through a Subterranean Formation - An internally rotating nozzle for facilitating drilling through a subterranean formation is rotatably mounted internally within a housing connected to a hose for receiving high pressure fluid. The rotor includes at least two tangential jets oriented off of center for ejecting fluid to generate torque and rotate the rotor and cut a substantially cylindrical tunnel in the subterranean formation. | 07-29-2010 |
| 20100206635 | Tunneling Apparatus Including Vacuum and Method of Use - The present disclosure relates to a tunneling apparatus including a pipe string having a distal end and a proximal end. The pipe string includes a plurality of pipe-sections connected end-to end. The pipe string also includes a cutting head coupled to a distal-most one of the pipe-sections. The pipe string defines a vacuum passage that extends through the pipe string from the proximal end to the distal end of the pipe string. A source of vacuum is in fluid communication with the vacuum passage for drawing cuttings through the vacuum passage. A blockage sensor can be used for sensing whether a precursor blockage condition exists within the vacuum passage. A source of air pressure can be used to force air distally through the pipe string to assist in moving cuttings proximally through the vacuum passage. | 08-19-2010 |
| 20100206636 | Backreamer for a Tunneling Apparatus - The present disclosure relates to a backreamer including a distal end configured for connection to product and a proximal end configured for attachment to a distal end of a drill string. The backreamer includes a backreaming cutter having a cutting side that faces toward the proximal end of the backreamer. The backreamer also includes a proximal assembly that extends between the proximal end of the backreamer and the backreaming cutter. The proximal assembly defines a vacuum passage for removing material cut by the backreaming cutter. The backreamer further includes a drive stem for transferring torque to the backreaming cutter for rotating the backreaming cutter. The drive stem is rotatably supported within the proximal assembly such that the drive stem and the backreaming cutter are rotatable relative to the proximal assembly. The backreamer additionally includes a distal assembly that extends between the backreaming cutter and the distal end of the backreamer. The distal assembly includes a vacuum blocking plate positioned distally with respect to the backreaming cutter. The backreaming cutter and the drive stem are rotatable relative to the vacuum blocking plate. | 08-19-2010 |
| 20100270080 | Apparatus and Method for Lateral Well Drilling - An apparatus and method for penetrating earth strata surrounding a wellbore including a nozzle assembly, a flexible tubing connected to the nozzle assembly, and a means to position the nozzle assembly downhole in a substantially horizontal direction into earthen strata, such that the nozzle assembly is connected to one end of the flexible tubing. Embodiments can provide horizontal jetting into the earth's strata from both cased and uncased wells utilizing a rotating, swirling, pulsing or cavitating nozzles which can keep a relatively cuttings free downhole environment. | 10-28-2010 |
| 20100270081 | Apparatus and Method for Lateral Well Drilling Utilizing a Nozzle Assembly with Gauge Ring and/or Centralizer - An apparatus and method for cutting horizontally into an earthen formation including a nozzle assembly having a gauge ring mechanism and/or a centralizer mechanism that allows the nozzle assembly to remain along a consistent axis of travel during cutting. Embodiments can provide horizontal jetting into the earth's strata from both cased and uncased wells utilizing a rotating, swirling, pulsing or cavitating nozzles which can keep a relatively cuttings free downhole environment. | 10-28-2010 |
| 20100282518 | DRAINAGE METHOD FOR MULTILAYER RESERVOIRS - A method of determining the arrangement of lateral boreholes to be drilled from a main borehole that traverses an underground reservoir comprising at least two layers of different fluid mobility, the method comprising:
| 11-11-2010 |
| 20110155469 | Apparatus and Method for Positioning Extended Lateral Channel Well Stimulation Equipment - Disclosed is a movable boring assembly and a boring tool positioner for drilling a plurality of holes in a well casing and jetting a well production zone through the plurality of holes. All of the holes can be drilled in the casing at different angular positions, as well as different levels within the casing. The drilling tool can then be removed and a perforation jet can be reliably and accurately reoriented into the drilled holes to perforate a production zone in multiple directions and at multiple levels. | 06-30-2011 |
| 20110168448 | DRILLING OUT CASING BITS WITH OTHER CASING BITS - The drilling of a casing bit and any other equipment in the casing with another casing bit where at least two casing bits of different diameter and having associated casing sections may be assembled to form a drilling assembly for drilling subterranean formations, the at least two casing bits and casing sections are arranged in a telescoping relationship. | 07-14-2011 |
| 20130062125 | Apparatus and Method for Lateral Well Drilling - A downhole tool assembly for cutting laterally into an earthen formation from a wellbore. The downhole tool assembly includes a flexible tubing circumscribing a series of interconnectable drive segments which can rotate in at least 2 axes on each end, wherein the flexible tubing forms at least one tubular member inner passageway. | 03-14-2013 |
| 20130199851 | METHOD FOR PRODUCING A HORIZONTALLY DRILLED BORE IN THE GROUND AND HORIZONTAL DRILLING DEVICE - A method for producing a horizontally drilled bore hole in the ground includes the steps of producing a pit having a circular cross-section; lowering a horizontal drilling device into the pit, the horizontal drilling device having a circular cross-section in at least part of the section in which it is positioned once it is lowered into the pit; and producing a horizontally drilled bore hole using the horizontal drilling device. | 08-08-2013 |
| 20130213716 | APPARATUS AND METHOD FOR LATERAL WELL DRILLING - An apparatus and method for penetrating earth strata surrounding a wellbore including a nozzle assembly, a flexible tubing connected to the nozzle assembly, and a means to position the nozzle assembly downhole in a substantially horizontal direction into earthen strata, such that the nozzle assembly is connected to one end of the flexible tubing. Embodiments can provide horizontal jetting into the earth's strata from both cased and uncased wells utilizing a rotating, swirling, pulsing or cavitating nozzles which can keep a relatively cuttings free downhole environment. | 08-22-2013 |
| 20130327573 | Method and System for Laterally Drilling Through a Subterranean Formation - A method for lateral drilling into a subterranean formation whereby a shoe is positioned in a well casing, the shoe defining a passageway extending from an upper opening in the shoe through the shoe to a side opening in the shoe. A rod and casing mill assembly are inserted into the well casing and through the passageway in the shoe until a casing mill end of the casing mill assembly substantially abuts the well casing. The rod and casing mill assembly are rotated until the casing mill end substantially forms a perforation in the well casing. An internally rotating nozzle is attached to an end of a hose and is pushed through the passageway and the perforation into the subterranean formation, and fluid is ejected from tangential jets into the subterranean formation for impinging upon and eroding the subterranean formation. | 12-12-2013 |
| 20140027184 | Dual-Member Pipe Joint For A Dual-Member Drill String - The present invention is directed to the configuration of an elongate inner member of a dual-member pipe. The elongate inner member of the dual-member pipe is disposed within an outer member and rotatable independent of the outer member. The inner member comprises a geometrically-shaped pin end and a box end having a geometrically-shaped opening. The geometrically-shaped opening of the box end has at least one internal angle greater than 180 degrees. The pin end of the inner member may be inserted into the box end of an adjacent similarly formed inner member to form an inner member pipe joint. The configuration of the pin end and the box end allows the pin end and the box end to be in connector free torque-transmitting engagement but also provides clearance for potential misalignment of the pin end and the box during make-up of an inner member drill string. | 01-30-2014 |
| 20140305708 | Reamer With Replaceable Cutters - A reamer for use in horizontal directional drilling back-reaming operations. The reamer comprises an elongate body having an intermediate section, a first end, and a second end. The circumference of the intermediate section is larger than the circumference of the first end and the second end. A pocket or a plurality of pockets are formed on the intermediate section. The pockets are configured such that a cutter or a plurality of cutters may be secured within the pockets via the use of fasteners. The cutters are replaceable with cutters of like size or cutters of different sizes and shapes. | 10-16-2014 |
| 20140360785 | Continuous Circulating Concentric Casing Managed Equivalent Circulating Density (ECD) Drilling For Methane Gas Recovery from Coal Seams - A method of drilling multiple boreholes within a single caisson, for recovery of methane gas from a coal bed, including the steps of drilling first and second vertical boreholes from a single location within a single caisson; drilling at least one or more horizontal wells from the several vertical bore hole, the horizontal wells drilled substantially parallel to a face cleat in the coal bed; drilling at least one or more lateral wells from the one or more horizontal wells, the lateral wells drilled substantially perpendicular to one or more face cleats in the coal bed; continuously circulating water through the drilled vertical, horizontal and lateral wells to recover the water and entrained methane gas from the coal bed; applying friction or choke manifold to the water circulating down the well bores so that the water appears to have a hydrostatic pressure within the well sufficient to maintain an equilibrium with the hydrostatic pressure in the coal bed formation; and drilling at least a third vertical borehole within the single caisson, with one or more horizontal boreholes and one or more lateral boreholes for returning water obtained from the lateral wells into a water zone beneath the surface. | 12-11-2014 |
| 20140367172 | DRILL STRING WITH ALUMINUM DRILL PIPES, BENT HOUSING, AND MOTOR - Methods and apparatuses include drilling a bore hole in a horizontal direction with a drill bit, a bent housing portion, and a mud motor by rotating the drill bit, the bent housing portion, and the mud motor with drill pipe comprising an aluminum pipe section. The methods and apparatuses also include stopping rotation of the drill pipe and performing a slide by rotating the drill bit with the mud motor to advance the drill bit, the bent housing portion, the mud motor, and the drill pipe in the borehole so that the aluminum pipe section moves axially along the bore hole in the horizontal direction. The methods and apparatuses also include continuing to drill the bore hole by rotating the drill bit, the bent housing portion, and the mud motor with the drill pipe. | 12-18-2014 |
| 20150330148 | PUSH REAMER - In some underground boring applications the exit location of the underground bore may be located such that drill pipe and material pipe sections cannot be conveniently deployed therefrom (e.g., a basement of a building, the inside of another pipe, or a small manhole space). In such applications, push reaming functionality is often the preferred method of reaming because the pipe section can be deployed and installed from a pit where the bore is started during a push reaming operation. The present disclosure provides a new push reaming drill head as well as a new method of push reaming. | 11-19-2015 |
| 20150345224 | Method and System for Laterally Drilling Through a Subterranean Formation - A method for lateral drilling into a subterranean formation whereby a shoe is positioned in a well casing, the shoe defining a passageway extending from an upper opening in the shoe through the shoe to a side opening in the shoe. A rod and casing mill assembly are inserted into the well casing and through the passageway in the shoe until a casing mill end of the casing mill assembly substantially abuts the well casing. The rod and casing mill assembly are rotated until the casing mill end substantially forms a perforation in the well casing. An internally rotating nozzle is attached to an end of a hose and is pushed through the passageway and the perforation into the subterranean formation, and fluid is ejected from tangential jets into the subterranean formation for impinging upon and eroding the subterranean formation. | 12-03-2015 |
| 20160097239 | An Improved Method and Device for Making a Lateral Opening Out of a Wellbore - A method and device are for making lateral openings out of a wellbore in a ground formation where at least one laterally directed drill string is movable in the axial direction inside a motherbore tubular, and where the leading end portion of the drill string is equipped with the drill bit that is driven by a rotatable drill string. The method includes connecting a fluid driven engine to the rotatable drill string inside the motherbore tubular, and directing flow in the motherbore tubular through the fluid driven engine to create rotation of the drill bit via the drill string. | 04-07-2016 |
| 20160160566 | APPARATUS AND METHOD FOR DRILLING GENERALLY HORIZONTAL UNDERGROUND BOREHOLES - An apparatus and method for drilling an underground borehole is presented, wherein pressurized air may be used to discharge out of the borehole cuttings created by a cutter head. A casing may be secured to the cutter head such that the cutter head and casing may be rotatable together as a unit. The casing may have larger and smaller diameter sections. An auger may be disposed adjacent the front of the casing. | 06-09-2016 |
