| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 181 | Drilling and grouting method and apparatus | US14438874 | 2012-12-21 | US09896894B2 | 2018-02-20 | Luca Barison; Larry Goff; Laurent Lefebvre; Steve England; Stefano Gabaldo; Michael Justason |
| A drilling and grouting device comprises a drill string including a hollow elongate outer rod having a central axis and a hollow elongate inner rod located coaxially within said outer rod, wherein a first outer flow path is defined between said inner and outer rod, and a first central flow path is defined inside said inner rod, a drill bit aligned with said inner rod along said central axis and including a second central flow path, and a crossover part interposed between said inner rod and said drill bit along said central axis, which is configured to connect the first central flow path with a second outer flow path surrounding the drill bit to form a main path and to connect said first outer flow path with said second central flow path to form a secondary path. Also disclosed are systems and methods that include and use the device. | ||||||
| 182 | DUAL CIRCULATION FLUID HAMMER DRILLING SYSTEM | US15550921 | 2015-11-16 | US20180044991A1 | 2018-02-15 | Ian Speer; Warren Strange |
| A dual circulation fluid hammer drilling system (10) has a fluid hammer (12) which is coupled to a drill string (14). The system (10) utilises a first fluid (16) and a second fluid (18). The first fluid (16) is delivered through the drill string (14) to drive or otherwise power the fluid hammer (12). The second fluid (18) is also delivered through the drill string (14) but in isolation of the first fluid (16) so they do not mix within the drill string (14). The second fluid (18) passes through a hammer bit (38) of the hammer drill (12) and is directed to flow out from a bit face (20). Thus when the system (10) is in use the second fluid (18) will flow across the bit face (20). The first fluid (16) also exits the drilling system (10) at the hammer drill (12). However the first fluid (16) exits upstream or up-hole of the bit face (20). | ||||||
| 183 | SYSTEMS AND METHODS FOR MANAGING DEBRIS IN A WELL | US15714207 | 2017-09-25 | US20180016872A1 | 2018-01-18 | Bryce Elliott RANDLE |
| Various systems, methods, and devices are disclosed for handling contaminants in a wellbore or riser. A washpipe debris trap (WPDT) traps contaminants traveling up a wellbore from a downhole location, and the WPDT may serve as an indicator for a breached screen in a downhole location. A marine riser reversing tool (MRRT) may reverse the flow of fluid between a workstring conduit and an annulus between the workstring and the wellbore such that fluid rises to the wellhead with greater velocity. A bi-directional chamber trap (BDCT) may be utilized in a wellbore operation to remove contaminants from a fluid. | ||||||
| 184 | Methods and systems for performance of subterranean operations using dual string pipes | US14403298 | 2012-06-05 | US09856706B2 | 2018-01-02 | Michael John McLeod Strachan |
| Methods and systems for delivery and retrieval of fluids to and from a downhole location are disclosed. A dual string pipe (202) is provided which comprises an outer pipe (206), an inner pipe (204) positioned within the outer pipe, and a bottom hole assembly (210) fluidically coupled to the outer pipe and the inner pipe. A diverter sub (208) is coupled to the inner pipe and is selectively operable in a normal drilling mode and a high flow mode. In the normal drilling mode a fluid is directed downhole through the inner pipe and in the high flow mode a return fluid is directed uphole through the inner pipe. | ||||||
| 185 | Method and apparatus for managing annular fluid expansion and pressure within a wellbore | US14653794 | 2014-03-25 | US09835009B2 | 2017-12-05 | Joe E. Hess; Andy J. Cuthbert |
| A well, well head, drilling and completion system, and method for relieving pressure buildup between concentric casing annuli. The well head includes casing hangers and a tubing hanger that may include annular pressure relief conduits formed therein, which selectively vent casing annuli to the interior of the production tubing. Annular pressure relief valves are located within the annular pressure relief conduits, which may open and/or shut based on pressure, temperature, or elapsed time. | ||||||
| 186 | Sub For Accommodating Large Devices | US15518393 | 2014-12-11 | US20170306709A1 | 2017-10-26 | Robert J. Cull; Stephen Daniel Lloyd; David James Laban |
| A sub, downhole tool, and method for manufacturing thereof, are disclosed. The sub may include one or more flow channels, each of which may be defined in part by a longitudinal groove formed along an exterior of a collar. One or more flow channel cover may be connected to the collar. The longitudinal grooves position the flow channels further outward to provide more volume within the collar that may be used for housing one or more devices. Upper and lower blind bores are fluidly coupled to the longitudinal grooves by angled through bores to complete the flow channels. A medial bore, which may be fluidly isolated from the flow channels, may be provided to house a device, such as an instrument, detector, or circuitry. | ||||||
| 187 | METHOD AND APPARATUS FOR CLEARING A WELLBORE | US15056881 | 2016-02-29 | US20170247967A1 | 2017-08-31 | Dean Fleischhacker; Mike Mazerolle; Steven Winkler |
| A method and a downhole apparatus for clearing a wellbore are disclosed. The method locates a mill in the wellbore about the obstructions, introduces a driving fluid flow along a driving flow path from surface to the mill, and introduces a circulation fluid flow along a circulation flow path from surface into a wellbore annulus at a location in the wellbore above the mill. Then the mill is driven by the introduced driving fluid flow to mill the obstructions; and milled obstructions are circulated to the surface via the wellbore annulus using the introduced circulation fluid and gas flow. At least a portion of the circulation flow path is within the driving flow path. | ||||||
| 188 | Manifold string for selectivity controlling flowing fluid streams of varying velocities in wells from a single main bore | US13261448 | 2011-03-01 | US09719311B2 | 2017-08-01 | Bruce A. Tunget |
| A set of manifold string members usable to selectively control separate flowing fluid streams of varying velocities for operations of well construction, injection or production of fluid mixtures of liquids, gases and/or solids, that can be injected into, or taken from, one or more proximal regions of a subterranean passageway, underground cavern, hydrocarbon or geothermal reservoir. Fluid communicated through a manifold string radial passageway of a manifold crossover, between conduit strings and at least one other conduit, can be controlled with at least one flow controlling member, communicating with a passageway member from an innermost, concentric, and/or annular passageway. Fluid communication can be selectively controlled for various configurations of one or more substantially hydrocarbon and/or substantially water wells, below a single main bore and wellhead. | ||||||
| 189 | Wellbore drilling using dual drill string | US14426884 | 2014-05-06 | US09702210B2 | 2017-07-11 | Ron J. Dirksen; Derrick W. Lewis |
| A method and apparatus are disclosed for drilling a wellbore using a concentric dual drill string. Multiple individually selectively isolable crossover ports intervaled may be provided along the length of the drill string thereby facilitating pumping a well control fluid within a wellbore annulus without the need to run-in or trip-out the drill string. Multiple one way check valves may be included at various points within an inner pipe of the dual drill string to minimize settling of particulate matter during long periods of non-circulation. In an offshore arrangement, the drill string may be used without a marine riser. A rotating control device is provided, and a hydraulic power unit is located at the seafloor for controlling and lubricating the rotating control device. A pump may be located at the seafloor for managing wellbore annulus pressure via the rotating control device. | ||||||
| 190 | Methods of maintaining sufficient hydrostatic pressure in multiple intervals of a wellbore in a soft formation | US13020618 | 2011-02-03 | US09494000B2 | 2016-11-15 | Tommy Frank Grigsby; Bruce Techentien |
| This Application addresses maintaining a hydrostatic pressure exerted on a wall of a wellbore in different intervals of the wellbore. This is done by flowing a liquid through at least a pressure regulator in each interval, and wherein each pressure regulators regulates the amount of pressure exerted by the liquid on the wall of the wellbore. The amount of pressure may be maintained for a specific period of time. The wellbore is part of a soft subterranean formation. | ||||||
| 191 | Multiplex pipe and system for recovering steam from geothermal wells | US14423742 | 2013-05-28 | US09470434B2 | 2016-10-18 | Keita Suzumura; Masayuki Igarashi; Akihiro Itoh; Akira Kawakami; Hideki Fujii; Teruhiko Hayashi; Kazuhiro Takahashi |
| Provided is a multiplex pipe and a system for recovering steam from a geothermal well, which are capable of solving all of the various problems with a neutralization pipe prepared by painting or the like of an alkali-resistant coating on the inner face of an acid-resistant single pipe. A multiplex pipe 10 that is configured to recover steam from a geothermal well GT, includes: a casing pipe 1 located outside; and a duplex pipe 4 that is slidable relative to the casing pipe 1 in the casing pipe 1, and has a first gap 5 with an inner face of the casing pipe 1, the duplex pipe including an outer pipe 2 having acid-resistance and an inner pipe 3 having alkali-resistance, the outer pipe 2 and the inner pipe 3 defining a second gap 6 therebetween. An alkali solution is injected to acid hot-water stored in an acid geothermal well GT via a hollow 7 of the inner pipe 3 to neutralize the acid hot-water, and the neutralized hot-water V is allowed to spout to the ground via the first gap 5, thus recovering flashing steam. | ||||||
| 192 | METHODS FOR DRILLING AND PRODUCING FROM COAL BED FORMATIONS AND ASSOCIATED APPARATUS | US15024721 | 2014-09-26 | US20160245050A1 | 2016-08-25 | Joost DE BAKKER; Michael BYRNE; Ali GHOLIPOUR; Peter PAVY |
| A method of drilling a formation, comprising drilling at least one wellbore in a coal bed methane formation using a drill string having an inner string and an outer string, the inner string and outer string defining a passageway therebetween; providing a drilling medium to drill apparatus for use in drilling the formation, the drilling medium provided through one of the inner or outer strings; and returning a combined medium comprising drilling medium, drilling cuttings, produced water and/or gas from the formation to surface via the other of the inner and outer string. Subsequent to drilling the formation, there are also described methods and apparatus for producing from coal bed methane formations. In some examples, this includes producing a first fluid, or fluid product from a first flow passage within a wellbore; and also producing a second fluid, or fluid product, from a second flow passage within the wellbore. | ||||||
| 193 | SYSTEMS AND METHODS FOR MANAGING DEBRIS IN A WELL | US14926326 | 2015-10-29 | US20160123116A1 | 2016-05-05 | Bryce Elliott Randle; Ronald Emerson Burger, JR. |
| Various systems, methods, and devices are disclosed for handling contaminants in a wellbore or riser. A washpipe debris trap (WPDT) traps contaminants traveling up a wellbore from a downhole location, and the WPDT may serve as an indicator for a breached screen in a downhole location. A marine riser reversing tool (MRRT) may reverse the flow of fluid between a workstring conduit and an annulus between the workstring and the wellbore such that fluid rises to the wellhead with greater velocity. A bi-directional chamber trap (BDCT) may be utilized in a wellbore operation to remove contaminants from a fluid. | ||||||
| 194 | Systems and methods for advanced well access to subterranean formations | US13991855 | 2011-11-11 | US09284794B2 | 2016-03-15 | Bruce A. Dale; Pavlin B. Entchev; Stuart R. Keller |
| Systems and methods for improving functional access to subterranean formations that include a well, which includes a casing string having at least one casing conduit that extends and provides a hydraulic connection between a surface region and the subterranean formation. Performing a plurality of downhole operations utilizing a casing string that constitutes a plurality of hydraulic pathways between the surface region and the subterranean formation. The plurality of downhole operations may be simultaneous operations and/or may be associated with at least one of a plurality of operational states including a drilling state, completing state, stimulating state, producing state, abandoning state, and/or killing state. In some embodiments, systems and methods may include a plurality of production control assemblies to control and/or monitor the downhole operations. | ||||||
| 195 | DRILL HEAD | US14830657 | 2015-08-19 | US20160053550A1 | 2016-02-25 | Henry Albert Wilson; Nathan Brooks |
| A drill head including: an elongate housing, a first end of the housing being coupled to an end of a drill pipe in use; a base at a second end of the housing, one or more drill cutters being attached to the base; a supply passageway at least partially within the housing, the supply passageway being supplied with a flow of gas in use; a return passageway at least partially within the housing, a first end of the return passageway being connected to an end of an inner tube extending inside the drill pipe in use, and a second end of the return passageway forming an opening in the base proximate to the one or more drill cutters; and one or more ports for directing at least some of the flow of gas from the supply passageway into the return passageway in a flow direction extending away from the base and towards the inner tube, to thereby cause loose material to be drawn into the return passageway through the opening and transported away from the drill head via the inner tube in use. | ||||||
| 196 | TWO PHASE MUD FLOW USAGE WITH DUAL-STRING DRILLING SYSTEM | US14765487 | 2013-02-06 | US20150361746A1 | 2015-12-17 | Arthur G. Mansell; Richard Thomas Hay |
| Systems and methods for controlling fluid contact with a borehole wall during drilling operations include introducing an outer pipe into a borehole and positioning an inner pipe within the outer pipe, wherein the inner pipe may be axially disposed within the outer pipe. The annular isolator may be disposed within an annulus between the outer pipe and the borehole wall. The method may include placing a control fluid in the annulus between the outer pipe and the borehole wall. The method may further include circulating a drilling fluid to a drill bit using the inner pipe and the annulus between the inner pipe and the outer pipe. The drilling fluid may be separated from the control fluid by an annular isolator. | ||||||
| 197 | Fluid partition unit | US13701826 | 2011-06-24 | US09187968B2 | 2015-11-17 | Ove Hole; Harald Syse |
| A method to be used when performing drilling in a well bore involves positioning a dual bore drill pipe in a well bore. An outer annulus formed between the drill pipe and well bore wall is divided into two different sections. A first fluid is provided in one of the sections. A second fluid having a density less than the first fluid is circulated into and out of the well bore through the drill pipe. The densities of the first and second fluids are such that the drill pipe is at least partly floating in the first fluid in the outer annulus. | ||||||
| 198 | CASING DRILLING SYSTEM AND METHOD | US14273597 | 2014-05-09 | US20150322721A1 | 2015-11-12 | Ola M. Vestavik; Morten Olav Meling; Stein Erik Meinseth |
| A casing drilling system includes combination conduit of a casing and a pipe inside the casing. A first adapter has a flow diverter to redirect at least flow of drilling fluid returning from a bottom of a wellbore to either an interior of the pipe or an annular space between the casing and the pipe. A second adapter has a flow diverter to redirect flow of drilling fluid into the conduit through the other one of the interior of the pipe and the annular space. The second adapter has a fluid connection between either the interior of the pipe or the annular space and a rotationally fixed fluid outlet. The system includes a casing chuck having means to support the casing and a slidable conduit operable to expose an uppermost end of the casing and a connection between the second adapter and an uppermost end of the pipe. | ||||||
| 199 | UNIVERSAL DRILLING AND COMPLETION SYSTEM | US14707937 | 2015-05-08 | US20150315863A1 | 2015-11-05 | WILLIAM BANNING VAIL III; ROBERT L. DEKLE; DAMIR S. SKERL; JAMES E. CHITWOOD |
| Methods and apparatus are described to drill and complete wellbores. Such wellbores include extended reach horizontal wellbores, for example in shales, deep subsea extended reach wellbores, and multilateral wellbores. Specifically, the invention provides simple threaded subassemblies that are added to existing threaded tubular drilling and completion equipment which are used to dramatically increase the lateral reach using that existing on-site equipment. These subassemblies extract power from downward flowing clean mud, or other fluids, in an annulus to provide additional force or torque on tubular elements within the wellbore, while maintaining circulation, to extend the lateral reach of the drilling equipment and completion equipment. These added elements include combinations of The Leaky Seal™, a Cross-Over, The Force Sub™ and The Torque Sub™. The use of such additional simple elements allow lighter drilling equipment to be used to reach a given lateral distance, therefore reducing drilling costs. | ||||||
| 200 | Underwater drilling arrangement and method for making a bore | US13592319 | 2012-08-22 | US09140068B2 | 2015-09-22 | Thomas Bauer; Stefan Michael Finkenzeller |
| An underwater drilling arrangement for marking a bore in a bed of a lake, sea or river with a service platform which can be lowered for placing on the lake, sea or river bed, a drill drive which is mounted so that it is axially displaceable on the service platform, and a drill rod with drill head which can be driven in rotation via the drill drive. A conveying channel is formed in the drill rod, through which a conveying fluid together with excavated drill cuttings can be conveyed upwards, and a discharge opening for the conveying fluid together with the excavated drill cuttings is provided, via which the conveying fluid can be discharged underwater together with the excavated drill cuttings above the drill drive. | ||||||
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