| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 221 | CONTINUOUS FLOW DRILLING SYSTEMS AND METHODS | US13227260 | 2011-09-07 | US20120061087A1 | 2012-03-15 | David Iblings; Thomas F. Bailey; R. K. Bansal; Adrian Steiner; Michael Lynch; Simon J. Harrall |
| A method for drilling a wellbore includes drilling the wellbore by injecting drilling fluid into a top of a tubular string disposed in the wellbore at a first flow rate and rotating a drill bit. The tubular string includes: the drill bit disposed on a bottom thereof, tubular joints connected together, a longitudinal bore therethrough, a port through a wall thereof, and a sleeve operable between an open position where the port is exposed to the bore and a closed position where a wall of the sleeve is disposed between the port and the bore. The method further includes moving the sleeve to the open position; and injecting drilling fluid into the port at a second flow rate while adding a tubular joint(s) to the tubular string. The injection of drilling fluid into the tubular string is continuously maintained between drilling and adding the joint(s). | ||||||
| 222 | Air injection collar | US12421799 | 2009-04-10 | US08127866B2 | 2012-03-06 | Paul G. Anthony |
| The present invention is an air injection collar for use in the drilling industry that is used to reduce the weight of the column of returning drilling mud and debris without causing unnecessary frictional wear on the drill pipe. The invention is a unique sleeve that is coupled to a drill casing that includes an input port for receiving the pressurized air or other fluid from the surface, an annular plenum extending around the drill casing, and a series of openings in the plenum leading to the inside of the drill casing. These openings disperse the pressurized air or other fluid into the upflowing mud around the central drill pipe so that it is not concentrated in one place, especially the center of the casing, where it could cause frictional damage to the drill pipe. | ||||||
| 223 | Method and device for transferring signals within a well | US12851255 | 2010-08-05 | US08122958B2 | 2012-02-28 | Ola Michael Vestavik |
| A method and device for a running tool for drilling or cleaning and setting a lining and a completion string in an underground borehole. The running tool comprising a drilling tool, an expandable casing, an expansion tool, a packer arranged to seal against the wall of the casing, and at least one conduit extending up to the surface. The drilling tool is releasably connected to the lower portion of the expanding casing, and the expansion tool and the packer are releasably connected to the upper portion of the expanding casing. The running tool is arranged to communicate with the surface through at least one pipe conduit. | ||||||
| 224 | METHOD AND DEVICE FOR A RUNNING TOOL | US12851323 | 2010-08-05 | US20100319935A1 | 2010-12-23 | Ola Michael Vestavik |
| A method and device for drilling or cleaning in underground borehole including a drilling tool, a drill pipe with two pipe conduits extending up the surface and further including an arrangement for providing one drilling fluid for circulation with a drill string and a second arrangement for providing a second fluid in an annulus formed between the drill string and the wall of a wellbore. | ||||||
| 225 | FLOW DIVERTER FOR DRILLING | US12744091 | 2008-11-19 | US20100314174A1 | 2010-12-16 | Henri Denoix; Charles Deible |
| An apparatus for drilling a borehole in a well is provided. The apparatus comprises a tubular conveyance system; a drilling system connected to one end of the tubular conveyance system and comprising a bottom hole assembly; and a flow diverter positioned in the tubular conveyance system and comprising a first flow channel configured to receive fluid from inside the conveyance system and at least two side flow channels configured to direct fluid from the first flow channel out of the tubular conveyance system. The fluid flow between the first flow channel and each side flow channels is controlled by a valve which is operable to divert fluid out of the tubular conveyance system or to maintain the fluid in the tubular conveyance system. | ||||||
| 226 | Apparatus and method for driving casing or conductor pipe | US11920871 | 2006-05-09 | US07775304B2 | 2010-08-17 | Yuejin Luo |
| Apparatus for driving an open-ended conductor pipe into the ground. The apparatus includes, in combination, an open-ended conductor pipe capable of being driven into the ground, a drill string, a device for pumping fluid through the drill string, an arrangement for supporting the conductor pipe on the drill string, and a reciprocable impact driver supportable by the drill string within the conductor pipe. The apparatus further includes a device for reciprocating the reciprocable impact driver using fluid pumped through the drill string, an anvil capable of transferring the percussive force of the reciprocable impact driver to the conductor pipe, and jets for jetting fluid into the lower portion of the conductor pipe. | ||||||
| 227 | BACKUP SAFETY FLOW CONTROL SYSTEM FOR CONCENTRIC DRILL STRING | US12689083 | 2010-01-18 | US20100116501A1 | 2010-05-13 | Kwong O. Chan; Henry X. He |
| A technique is presented for providing a double-barrier to formation fluids during drilling operations with a concentric drill string having an inner bore and an annulus. A primary flow control system is used to provide a first barrier to formation fluids in the inner bore and annulus of the drill string. A backup flow control system is used to provide a second barrier to formation fluids. The backup flow control system comprises a backup inner bore shutoff valve and a backup annulus shutoff valve. The backup inner bore shutoff valve is dropped from the surface through the inner bore of the drill string. The backup inner bore shutoff valve has spring-biased tabs that are configured to extend outward to contact an inner surface profile of the inner bore of the drill string. The backup annulus shutoff valve may be provided with the profile to receive the spring-biased tabs from the backup inner bore shutoff valve. When the tabs of the backup inner bore shutoff valve are disposed opposite the profile, the tabs of the backup inner bore shutoff valve are extended outward into the profile by a spring assembly, securing the backup inner bore shutoff valve within the drill string. | ||||||
| 228 | Constricting flow diverter | US12134442 | 2008-06-06 | US07624821B1 | 2009-12-01 | David R. Hall; Scott Dahlgren; Jonathan Marshall |
| In one aspect of the present invention, a downhole assembly has a downhole tool string component with a bore adapted to accommodate drilling mud having a central passage and at least one periphery passage. At least two movable segments are peripherally positioned around a bore wall adapted to constrict a diameter of the central passage and are adapted to divert drilling mud into the at least one periphery passage. At least one opening mechanism is adapted to move a portion of the at least two movable segments toward the bore wall. | ||||||
| 229 | System for drilling under-balanced wells | US12069458 | 2008-02-11 | US20090200085A1 | 2009-08-13 | Danny T. Williams |
| A system and method for drilling a well bore with an under-balanced hydrostatic pressure. The system comprises a tubular containing a first port and wherein a well bore annulus is formed between the well bore and the tubular member, and a compression member disposed about the outer portion of the tubular member, the compression member having extending therefrom an internal sliding mandrel, and wherein the internal sliding mandrel contains a second port. The system further comprises an external sliding sleeve operatively associated with the internal sliding mandrel, wherein the external sliding sleeve containing a third port, and wherein in a closed position the first, second and third port are misaligned and in an open position the first, second and third port are aligned. The system also includes a compressible seal disposed about the external sliding sleeve and in contact with the internal sliding mandrel, the compressible seal responsive to a longitudinal weight transferred to the compression member. Also, a work string may be included, with the work string positioned within the tubular, with the work string having a drill bit attached at a distal end of the work string, and wherein a work string annulus is formed relative to the tubular and the work string. | ||||||
| 230 | MICROTUNNELLING SYSTEM AND APPARATUS | US12335193 | 2008-12-15 | US20090152008A1 | 2009-06-18 | Andis SALINS; Stuart HARRISON |
| A microtunnelling apparatus and system that includes an external drive system having rotational and linear thrust drive means, a drill head section having drill rotor and drill rod and connecting to intermediate drill rods allowing extension of the boring hole created by the drill head section driven by the drive system. The drill head includes a modular construction having a plurality of circular disc like elements, a bearing module, a steering module, a spacer module, and a mounting module, for axial alignment and abutment and mounting within a cylindrical steering shell. Directional steering of the drill head includes a plurality of substantially radially extending channels in steering module, each with an hydraulically movable protuberance movable by control means to redirect the outer steering casing and thereby redirect the drill head section mounted on the distal end of the drill rods. | ||||||
| 231 | Method and system for return of drilling fluid from a sealed marine riser to a floating drilling rig while drilling | US10807091 | 2004-03-23 | US07448454B2 | 2008-11-11 | Darryl A. Bourgoyne; Don M. Hannegan |
| A floating rig or structure for drilling in the floor of an ocean using a rotatable tubular includes a seal housing having a rotatable seal connected above a portion of a marine riser fixed to the floor of the ocean. The seal rotating with the rotating tubular allows the riser and seal housing to maintain a predetermined pressure in the system that is desirable in underbalanced drilling, gas-liquid mud systems and pressurized mud handling systems. The seal is contemplated to be either an active seal or a passive seal. A flexible conduit or hose is used to compensate for relative movement of the seal housing and the floating structure because the floating structure moves independent of the seal housing. A method for use of the system is also disclosed. | ||||||
| 232 | METHOD AND APPARATUS FOR ISOLATING AND TESTING ZONES DURING REVERSE CIRCULATION DRILLING | US11969814 | 2008-01-04 | US20080099195A1 | 2008-05-01 | JAMES LIVINGSTONE |
| An isolation tool for use with a concentric drill string for isolating a zone in a wellbore for testing is provided comprising a center tube and an outer casing forming an annular conduit therebetween and an expandable and contractible packer for sealing off an outside annular passage formed between a wall of the wellbore and an outer surface of the concentric drill string, whereby the isolation tool is adapted to be operably connected to the concentric drill string such that the isolation tool is in fluid communication with the concentric drill string. | ||||||
| 233 | Method and apparatus for isolating and testing zones during reverse circulation drilling | US10907849 | 2005-04-18 | US07343983B2 | 2008-03-18 | James I. Livingstone |
| A zone isolating and testing apparatus comprising an isolation tool and a downhole flow control means and a method of using such apparatus. The zone isolating and testing apparatus is particularly useful for testing zones during reverse circulation drilling using concentric drill string such as concentric drill pipe or concentric coiled tubing. The isolation tool of the zone isolating and testing apparatus comprises an expandable packer means and is adapted to connect to concentric drill string near the drilling means and be in fluid communication with the concentric drill string. The downhole flow control means of the zone isolating and testing apparatus comprises at least two valves, one for closing off the annular conduit between the inner tube and outer tube of the concentric drill string and the other for closing off the inner conduit of the inner tube. The downhole flow control means is also adapted to connect to concentric drill string near the drilling means and be in fluid communication with the concentric drill string. During testing, the isolation tool seals off the annular passage between the concentric drill string and the walls of the wellbore and the downhole flow control means seals off either the annular conduit or the inner conduit of the concentric drill string. | ||||||
| 234 | Rock Drilling Equipment | US10599621 | 2005-04-05 | US20080029307A1 | 2008-02-07 | Christopher James Green |
| In a reverse circulation down-the-hole hammer assembly a having a axially extending central tube (30) for recovery of drilling debris, the central tube (30) has a downwardly facing abutment (32) and an upwardly facing upper end and is located axially in the hammer assembly by having the part thereof between the downwardly facing abutment and the upper end located between axially spaced complementary abutments, one of which fixed and the other of which is provided by a resiliently longitudinally displaceable member (42) within a casing part providing an upper end of the hammer assembly and which is removably retained in an adjoining part of the hammer assembly. The longitudinally displaceable member engages the upper end of the central tube and thus clamps the central tube in place. | ||||||
| 235 | Apparatus and methods for sealing voids in a subterranean formation | US10800157 | 2004-03-12 | US07281576B2 | 2007-10-16 | Richard J. Curtice; Gregory D. Wilcox; Len E. Fry |
| Downhole tools that include an outer tubing disposed around an inner tubing for placement of a sealant mixture into a void in a subterranean formation and associated methods of use are provided. Furthermore, a method is provided for preparing a cement composition, which includes mixing a first cementitious component and an aqueous-based fluid in a first mixer to form an intermediate cement composition, and mixing the intermediate cement composition and a second cementitious component in a second mixer to form the cement composition. | ||||||
| 236 | Method and device for establishing an underground well | US10592180 | 2005-03-07 | US20070169943A1 | 2007-07-26 | Ola Vestavik |
| A method and a device for establishing an underground borehole (10) and setting a casing (6) in the borehole (10), wherein the running tool (1) including a drilling tool (14), an expandable casing (6), an expansion tool (32) and a packer (30) which is arranged to seal against the wall of the borehole (10), is placed at the bottom of the borehole (10), whereupon the borehole (10) is drilled to the necessary length in order then to set the expandable casing (6), and in subsequent operations the casing is reinforced and a completion string is run, having built-in cables for downhole control and monitoring. | ||||||
| 237 | Drilling assembly and method for drilling a barehole into geological formations | US11426210 | 2006-06-23 | US07243743B2 | 2007-07-17 | Johannes Van Wijk |
| A drilling assembly for drilling a borehole into geological formations. The assembly comprises a drilling shaft and a pump device, both placable in the borehole. The drilling shaft comprises a drilling head, and the pump device comprises a sealing device for sealing a first borehole part below the sealing device from a second borehole part above the sealing device. The pump device is enabled to pump a fluid from the first borehole part to the second borehole part. | ||||||
| 238 | Method for drilling and drilling apparatus to enable reverse circulation | US10471145 | 2002-02-18 | US07143846B2 | 2006-12-05 | Jorma Järvelä; Vesa Järvelä |
| The invention relates to a method for drilling, being carried out by a drilling apparatus, having a drilling device (1) that comprises a casing part (2) and a drilling unit (3), in the drilling head (I) of which there are first drilling means (4) for drilling a center hole and second drilling means (5) for reaming of the center hole for the casing part (2) as well as flushing flow arrangement (6) for flushing of waste, being generated. At least during the drilling situation, the first drilling means (4) are coupled by a power transmitting and, in order to enable removal of the same from the hole, removable arrangement, such as a bayonet coupling or like, with the second drilling means (5). A feed flow (6a) of flushing medium, being carried out centrally, is being transferred by internal drillings (X1) inside a first frame part (4a), belonging to the first drilling means (4), to its outer periphery and a return flow (6b) of flushing medium, in order to accomplish a so called reverse circulation of flushing medium, from the drilling surface (pp2) of the first frame part (4a) through internal drillings (X2) therein into a space (z) between the first frame part (4a) and the casing part (2). The invention relates also to a drilling apparatus for exploitation of the method described above. | ||||||
| 239 | METHOD AND APPARATUS FOR ISOLATING AND TESTING ZONES DURING REVERSE CIRCULATION DRILLING | US10907849 | 2005-04-18 | US20050224228A1 | 2005-10-13 | James Livingstone |
| A zone isolating and testing apparatus comprising an isolation tool and a downhole flow control means and a method of using such apparatus is disclosed. The zone isolating and testing apparatus is particularly useful for testing zones during reverse circulation drilling using concentric drill string such as concentric drill pipe or concentric coiled tubing. The isolation tool of the zone isolating and testing apparatus comprises an expandable packer means and is adapted to connect to concentric drill string near the drilling means and be in fluid communication with the concentric drill string. The downhole flow control means of the zone isolating and testing apparatus comprises at least two valves, one for closing off the annular conduit between the inner tube and outer tube of the concentric drill string and the other for closing off the inner conduit of the inner tube. The downhole flow control means is also adapted to connect to concentric drill string near the drilling means and be in fluid communication with the concentric drill string. During testing, the isolation tool seals off the annular passage between the concentric drill string and the walls of the wellbore and the downhole flow control means seals off either the annular conduit or the inner conduit of the concentric drill string. | ||||||
| 240 | DOWNHOLE BLOWOUT PREVENTOR | US10906277 | 2005-02-11 | US20050178586A1 | 2005-08-18 | James Livingstone |
| The downhole flow control means or downhole blowout preventor (downhole BOP) of the present invention is adapted for use during reverse circulation drilling with both concentric drill pipe and concentric coiled tubing. The downhole BOP comprises an inner tube member having an inner passage therethrough and an outer casing forming an annular passage between the inner tube member and the outer casing. The inner passage and the annular passage of the downhole BOP is in fluid communication with the inner passage and annular passage, respectively, of the concentric drill pipe or concentric coiled tubing. The downhole BOP further comprises two valve means, preferably a check valve and a ball valve, for closing off the annular passage and the inner passage of the downhole BOP, respectively. In a preferred embodiment, the downhole BOP further comprises an electric actuator for opening and closing the ball valve. | ||||||
QQ群二维码
意见反馈
意见反馈