| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 141 | Circulation System for Retrieval of Bottom Hole Assembly During Casing While Drilling Operations | US12126315 | 2008-05-23 | US20090288841A1 | 2009-11-26 | Erik P. Eriksen; Michael E. Moffitt; Tommy M. Warren |
| During casing-while-drilling, drilling fluid is pumped through a conduit leading to a flow passage a casing string gripper and down the casing string. A bottom hole assembly is mounted at a lower end of the casing string for drilling a wellbore. The bottom hole assembly is retrieved by mounting a circulation sub to the casing string below the casing string gripper, the circulation sub having a lateral outlet. A return flow line is connected from the outlet to the circulation system. The operator flows fluid downward in an annulus of the casing string and back up the casing string, causing the bottom hole assembly to move upward. The fluid flowing back up the casing string is diverted through the outlet in the circulation sub to the circulation system without passing through the flow passage in the casing string gripper. | ||||||
| 142 | Dual string orbital drilling system | US12381019 | 2009-03-06 | US20090223719A1 | 2009-09-10 | Robert E. Able; Charles C. Able |
| A dual string drilling system for drilling a well bore in an earth formation, having a rotatable, tubular outer drill string and an upper rotatable, tubular inner drill string. An elongate tubular drill bit is mounted to a distal end of the outer drill string. The tubular drill bit having an interior passageway having a longitudinal axis which is inclined with respect to the longitudinal axis of the outer drill string. The drill bit is further provided with a cutaway portion extending through a wall of the tubular outer drill string. A lower rotatable inner drill string is coupled to the upper rotatable tubular inner drill string and is disposed within the interior passageway of the drill bit. A second drill bit is mounted to the distal of the lower inner drill string and is sized to extend beyond the drill bit mounted to the outer drill string. | ||||||
| 143 | EARTH-BORING TOOLS ATTACHABLE TO A CASING STRING AND METHODS FOR THEIR MANUFACTURE | US12270944 | 2008-11-14 | US20090120693A1 | 2009-05-14 | Eric E. McClain; Matthew R. Isbell; Jack Thomas Oldham; John C. Thomas; Marc W. Bird |
| Casing bits include a crown having a substantially hollow interior. The bit crown has blades over a face portion thereof, the blades including a plurality of cutting elements attached thereto. The bit crown further includes a composite inlay positioned at least within the substantially hollow interior. Casing bits also include case hardened outer surfaces radially outside the drill-out region. Casing bits further include short-substrate cutting elements. Methods of forming a casing bit are also disclosed. | ||||||
| 144 | Liner Drilling Method and Liner Hanger | US12238191 | 2008-09-25 | US20090090508A1 | 2009-04-09 | Michael Brouse |
| An installation system for installing a liner in a well includes drilling while simultaneously running the liner. A string of drill pipe with a bottom hole assembly including a drill bit on a lower end is lowered into the liner while the liner is suspended at the rig floor. The bottom hole assembly engages a lower sub of the liner for torque transmission. A running tool secured to the drill pipe engages the upper sub such that the running tool supports the weight of the liner and transmits torque. The drill pipe and liner are rotated to drill deeper into the welbore. The liner hanger can be set to engage the casing, then released and reset at a different point. | ||||||
| 145 | Method and device for producing a cased string bore | US12006673 | 2008-01-04 | US20080164066A1 | 2008-07-10 | Horst Derwand |
| In a method for producing a cased string bore (5) extending from a well shaft (1) in the horizontal direction for the installation of a filter string, a starter drill pipe (13) and subsequently further drill pipes are driven into the rock mass (6) surrounding the well shaft through an opening (4) in the wall (2) of the well shaft (1) using a drive means (11) arranged in the well shaft. Arranged in the starter drill pipe (13) is a hydraulically driven drill motor (18) which drives in rotation a drilling tool (19) protruding from the leading end of the starter drill pipe (13) and is supported in the starter drill pipe (13) by means of a clamping device (21, 22) so as to be fixed against rotation and axial displacement, a partition sealing the starter drill pipe (13) being formed by means of the clamping device (21, 22). Pressurized water is supplied to the drilling tool (19) via a flushing pipe (29) penetrating the clamping device (21, 22) and the drillings, which are separated by the drilling tool (19), are conveyed away toward the surface through a conveying pipe (25) which opens out in the center of the drilling tool (19) and is guided rectilinearly through the clamping device (21, 22) to the well shaft (1). On reaching the final depth of the string bore (5) the drilling tool is retracted into the starter drill pipe by axial movement of the clamping device (21, 22) and the free space between the drift face of the string bore (5) and the starter drill pipe (13) is filled and sealed by injection of a quick-setting, expanding filling compound. Afterwards the clamping device (21, 22) is disengaged and removed, together with the drill motor (18) and the drilling tool (19), from the drill pipes. | ||||||
| 146 | Single Pass Drilling Apparatus, Use of a One-Piece Drill Bit, Method and Rock Bolt for Single Pass Rock Bolting | US10590356 | 2005-02-18 | US20070274788A1 | 2007-11-29 | Pierre Ravat |
| The present invention relates to a single pass drilling apparatus, a rock bolt, use of a drill bit and a method for single pass rock bolting for reinforcement and stabilization of excavations. The single pass drilling apparatus comprises an elongated drill steel (11) having a leading (12) and a trailing end (1 3) with reference to a drilling direction (F). The leading end (12) has a connection portion. A one-piece drill bit (16) is utilized having rock machining means (17,18;17′18′). The drill bit is connectable to the drill steel. The single pass drilling apparatus (10) further comprises a rock bolt (21;121,221;321) adapted to at least partially enclose the drill steel (11). The greatest diametrical dimension (DB) of the drill bit (16) is smaller than the smallest diametrical dimension (DI) of the rock bolt. | ||||||
| 147 | Wellstring assembly | US10541638 | 2004-01-14 | US07296639B2 | 2007-11-20 | Ian Alexander Millar; Douwe Johannes Runia; Paul Neilson Wood |
| A wellstring assembly comprising a tubular first wellstring part with a passageway; a second wellstring part co-operating with the first wellstring part; and a releasable wellstring-interconnecting means for selectively interconnecting the first and second wellstring parts; an auxiliary tool for manipulating the second wellstring part, which auxiliary tool can pass along the passageway in the first wellstring part to the second wellstring part, comprising a tool-connecting means for selectively connecting the auxiliary tool to the second wellstring part, and an operating means for operating the wellstring-interconnecting means. | ||||||
| 148 | CASING BOTTOM HOLE ASSEMBLY RETRIEVAL PROCESS | US11461918 | 2006-08-02 | US20070068677A1 | 2007-03-29 | Per Angman; Robert Tessari; Tommy Warren |
| A process for retrieving a bottom hole assembly through a casing string may include: installing a casing string in a borehole, the casing string including a bottom hole assembly releasably engaged thereto and moveable through an inner diameter of the casing string; releasing the bottom hole assembly from engagement with the casing string; reducing hydrostatic pressure in the casing string inner diameter above the bottom hole assembly so that the casing string inner diameter pressure above the bottom hole assembly is lower than a fluid pressure below the bottom hole assembly; permitting reverse circulation down through an annulus between the casing string and the borehole to permit the bottom hole assembly to rise up through the casing string toward the surface; and retrieving the bottom hole assembly from the casing string. | ||||||
| 149 | Drill bit assembly | US10912432 | 2004-08-05 | US07185717B2 | 2007-03-06 | Ardis L. Holte; Timothy W. Conn |
| A drilling apparatus comprises a casing shoe, ring bit, and center bit. The casing shoe may be connected to a casing received within the casing shoe. The ring bit is received within the casing shoe and retained at the end of the casing. The ring bit rotates relative to the casing shoe, and drills a peripheral portion of a hole. The center bit drills a central portion of the hole, and may be rotated and percussively driven to drill the hole. The center and ring bits are adapted for: engaging one another so that rotating and percussively driving the center bit also rotates and percussively drives the ring bit; engaging one another so that retracting the center bit also retracts the ring bit, casing shoe, and casing; enabling disengagement from one another and withdrawal of the center bit from the ring bit and the casing shoe. | ||||||
| 150 | Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells | US10746711 | 2003-12-24 | US07108084B2 | 2006-09-19 | William Banning Vail, III |
| The steel drill string attached to a drilling bit during typical rotary drilling operations used to drill oil and gas wells is used for a second purpose as the casing that is cemented in place during typical oil and gas well completions. Methods of operation are described that provide for the efficient installation of a cemented steel cased well wherein the drill string and the drill bit are cemented into place during one single drilling pass down into the earth. Apparatus is described having a portion of a drilling assembly that is selectively removable from the wellbore without removing the casing. A one-way cement valve is installed near the drill bit of the drill string that allows the cement to set up efficiently under ambient hydrostatic conditions while the drill string and drill bit are cemented into place during one single drilling pass into the earth. | ||||||
| 151 | Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells | US10717422 | 2003-11-19 | US07040420B2 | 2006-05-09 | William Banning Vail, III |
| The steel drill string attached to a drilling bit during typical rotary drilling operations used to drill oil and gas wells is used for a second purpose as the casing that is cemented in place during typical oil and gas well completions. Methods of operation are described that provide for the efficient installation of a cemented steel cased well wherein the drill string and the drill bit are cemented into place during one single drilling pass down into the earth. A stabilizer is attached to the drill string that is used to centralize the drill string in the well during cementing operations. A one-way cement valve is installed near the drill bit of the drill string that allows the cement to set up efficiently under ambient hydrostatic conditions while the drill string and drill bit are cemented into place during one single drilling pass into the earth. | ||||||
| 152 | Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells | US10735918 | 2003-12-15 | US07013997B2 | 2006-03-21 | William Banning Vail, III |
| The steel drill string attached to a drilling bit during typical rotary drilling operations used to drill oil and gas wells is used for a second purpose as the casing that is cemented in place during typical oil and gas well completions. Methods of operation are described that provide for the efficient installation of a cemented steel cased well wherein the drill string and the drill bit are cemented into place during one single drilling pass down into the earth. Methods of operation are described wherein at least one geophysical parameter is measured with a geophysical parameter sensing member located within the drill string. A one-way cement valve is installed near the drill bit of the drill string that allows the cement to set up efficiently under ambient hydrostatic conditions while the drill string and drill bit are cemented into place during one single drilling pass into the earth. | ||||||
| 153 | RETRIEVABLE CENTER BIT | US10906200 | 2005-02-08 | US20060021801A1 | 2006-02-02 | John Hughes; Tommy Warren |
| A retrievable center bit for use with a tubular including an inner bore and a drill shoe cutter mounted thereon. The retrievable center bit may include a body positionable in the bore of the tubular and including an upper end, a lower end and a side outer surface extending therebetween. A cutting surface may be supported on the lower end of the bit body. There may be a locking assembly on the body for releasably locking the bit axially and rotationally to the tubular. A longitudinal bore may extend from the upper end into the body and the body may include a fluid port extending from the bore to open on the cutting surface and a lateral fluid port extending from the bore opening on the side outer surface positionable adjacent the drill shoe cutter when the bit is locked to the tubular. | ||||||
| 154 | Rotatable drill shoe | US10799790 | 2004-03-12 | US20050199426A1 | 2005-09-15 | Kenneth Smith; Edward Cousins; Marc Leveque; Gary Collins |
| A rotatable drilling shoe attachable to a section of casing that allows for drilling and casing of a well bore in a single trip. The drilling shoe includes a fixed section and a rotatable section that has a drillable bit attached thereto. The drilling shoe further includes a mechanism for inhibiting rotation of the rotatable section after the casing is cemented into place so that the drillable bit can be drilled out by a subsequent drilling operation. | ||||||
| 155 | Apparatus and method for rotary bored drilling | US10479570 | 2004-04-29 | US20040173383A1 | 2004-09-09 | John R. Hollingsworth; James M. Unsworth |
| Rotary drilling apparatus comprising at least one kelly bar, interlockable with one ore more other kelly bars in end-to-end arrangement such that, in use, a rotational force applied to an uppermost kelly bar is transmitted to each of the kelly bars below it; a tool, for example an auger, having a bore therethrough in which the outer surface of one of said kelly bars can slideably engage; and lifting means for selectively raising and lowering said tool by sliding it over the outer surface of said kelly bars, whereby, in use, said tool is lowered by sliding it over said interlocked kelly bars and attached to a lowermost kelly bar so that a rotational force applied to said lowermost kelly bar is transmitted to the tool, characterised in that at least part of said lifting means is capable or rotation about a longitudinal axis of said kelly bar for synchronous rotation therewith. | ||||||
| 156 | Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells | US10739483 | 2003-12-18 | US20040129456A1 | 2004-07-08 | William Banning Vail III |
| The steel drill string attached to a drilling bit during typical rotary drilling operations used to drill oil and gas wells is used for a second purpose as the casing that is cemented in place during typical oil and gas well completions. Methods of operation are described that provide for the efficient installation of a cemented steel cased well wherein the drill string and the drill bit are cemented into place during one single drilling pass down into the earth. Different physically alterable bonding materials may be substituted for cement. A one-way cement valve is installed near the drill bit of the drill string that allows the cement to set up efficiently under ambient hydrostatic conditions while the drill string and drill bit are cemented into place during one single drilling pass into the earth. | ||||||
| 157 | Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells | US10735918 | 2003-12-15 | US20040123984A1 | 2004-07-01 | William Banning Vail III |
| The steel drill string attached to a drilling bit during typical rotary drilling operations used to drill oil and gas wells is used for a second purpose as the casing that is cemented in place during typical oil and gas well completions. Methods of operation are described that provide for the efficient installation of a cemented steel cased well wherein the drill string and the drill bit are cemented into place during one single drilling pass down into the earth. Methods of operation are described wherein at least one geophysical parameter is measured with a geophysical parameter sensing member located within the drill string. A one-way cement valve is installed near the drill bit of the drill string that allows the cement to set up efficiently under ambient hydrostatic conditions while the drill string and drill bit are cemented into place during one single drilling pass into the earth. | ||||||
| 158 | Method for drilling and drilling apparatus | US10471145 | 2003-10-03 | US20040104050A1 | 2004-06-03 | Jorma Jnullrvelnull; Vesa Jnullrvelnull |
| The invention relates to a method for drilling, being carried out by a drilling apparatus, having a drilling device (1) unit (3), in the drilling head (I) of which there 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. | ||||||
| 159 | Sectional drive system | US09758297 | 2001-01-10 | US06523624B1 | 2003-02-25 | James E. Cousins; Ruben C. Boyter |
| A sectional drive system for transmitting rotational power to an output, which system includes multiple splined drive segments which are nested and interlocked as a drive string that is rotatable in a selected straight or curved path. The top one of the drive segments cooperates with a drive mechanism to effect rotation of the nested drive segments in concert, and the bottom one of the drive segments connects to a suitable output such as a drill bit. Multiple, tapered and truncated exterior splines on each of the drive segments mesh with complementary interior splines on the adjacent drive segment to enable slight angular positioning of the drive segments on each other and facilitate dampening of drive vibration and bending of the drive string in or out of the chosen path in any desired direction as the drive string transmits rotational power in a curved path of desired magnitude from the drive mechanism to the output. The drive segments are typically connected internally by means of a cable or shaft, or may be connected by floating “collars”, to form the drive string. In a preferred embodiment, a drill bit having a removable center bit insert is mounted on the bottom one of the drive segments on the drive string, and is characterized by multiple interior splines which engage the companion exterior splines of the drive segment. | ||||||
| 160 | Locking system for a firing mechanism of a downhole tool | US29397 | 1998-02-27 | US6039129A | 2000-03-21 | Galvin Thomas McLeod |
| Locking system (196) is provided for selectively locking an external sleeve (76) to a main body (74) of a downhole tool (14). Locking system (196) comprises a pair of opposed holes (198) formed in the main body (74). The holes (198) capture respective locking balls (200). A channel (210) extends from each hole (198) longitudinally about the outer surface of the main body (74). A spring (206) held within the main body (74) acts to push the balls (200) out of holes (198). Openings (212) are also formed in the sleeve (76) and disposed so that the balls (200) can protrude therethrough and contact the inner circumferential surface (28) of a drive sub (12) by virtue of the bias of spring (206). When the internal diameter of the drive sub (12) is relatively small, the balls (200) are pushed inwardly against the spring (206) and reside, at least partially, within holes (198). This prevents the balls from moving longitudinally about channels (210) thereby locking the sleeve (76) to the main body (74). However, when the internal diameter of the drive sub increases, the balls (200) are pushed radially outwardly by the spring (206) to the extent that they can then escape holes (198) and roll along channels (210). This allows the sleeve (76) to slide relative to the body (74). | ||||||
QQ群二维码
意见反馈
意见反馈