| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 81 | Underbalanced well completion | EP05075558.6 | 1999-09-01 | EP1544405A2 | 2005-06-22 | Webb, Alan B.; Dennistoun, Stuart M.; Meaders, Wade |
A valve (10) operatively positionable in a subterranean well. The valve (10) comprises: a closure assembly (12) configured for selectively permitting and preventing fluid flow therethrough; an operator assembly (22) displaceable relative to the closure assembly (12) to open and close the closure assembly (12); and a latch assembly (26) reciprocably disposed relative to the operator assembly (22) and operatively engageable therewith. The latch assembly (26) is displaceable from a first portion in which the latch assembly (26) is displaceable relative to the operator assembly (22) to a second position in which the latch assembly (26) is operatively engaged with the operator assembly (22) and displaceable therewith. |
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| 82 | CONTINUOUS CIRCULATION DRILLING METHOD | EP97945007.9 | 1997-10-14 | EP0932745B1 | 2005-04-13 | Ayling, John Laurence |
| A method for drilling wells in which the tubular (5) can be added or removed from the drill string (17) whilst the drill is rotating with the mud and drilling fluids being circulated continuously and kept separated from the environment to reduce pollution. A connector is used with an inlet (15) and outlet (10) for the mud etc. and which incorporates rams (11) to seal off and separate the flow of mud as a tubular is added or removed. | ||||||
| 83 | BOP and separator combination | EP03256018.7 | 2003-09-24 | EP1519002A1 | 2005-03-30 | Hopper, Hans Paul |
A system for use in down hole operations, the system comprising a wellhead (11); a BOP ram package (17) connected at one end to the wellhead and having an axial bore (20) extending from the wellhead to the other end; a device above the other end of the BOP ram package for isolating the pressure of the wellhead; a fluid take-off (70) between the pressure containing means and the BOP ram package; a separator (16), which may be a centrifugal toroidal separator (19), in communication with the fluid take-off such that, in use, a multi-phase medium obtained from the well can be separated into its constituent phases; and a pressure control device, which may comprise a pump (55,58), on each of one or more outlets from the separator for allowing the system to be operated different wellhead pressures. |
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| 84 | METHOD AND APPARATUS FOR DRILLING A BOREHOLE INTO A SUBSEA ABNORMAL PORE PRESSURE ENVIRONMENT | EP99908371 | 1999-02-24 | EP1060320A4 | 2004-12-15 | BOURGOYNE ADAM T JR; BOURGOYNE DARRYL A; BOURGOYNE TAMMY T |
| An apparatus for controlling a subsea borehole fluid pressure is proposed for use with a conductor casing (110) positioned below the mudline (57) and within a normal pore pressure environment. The apparatus includes a pump (53) for moving a fluid through a tubular into a borehole. The fluid, before being pumped, exerts a pressure less than the pore pressure of an abnormal pore pressure environment (10). The fluid in the borehole is then pressurized by the pump (53) to at least a borehole pressure equal to or greater than the pore pressure of an abnormal pore pressure environment (10). A pressure housing assembly (15) allows for the drilling of a borehole below the conductor casing (110) into an abnormal pore pressure environment (53) while maintaining the pressurized fluid between a borehole pressure equal to or greater than the pore pressure of the abnormal pore pressure environment (10), and below the fracture pressure of the abnormal pore pressure environment (10). | ||||||
| 85 | ROTATING SUBSEA DIVERTER | EP99915061.8 | 1999-03-26 | EP1071862B1 | 2004-11-03 | PELATA, Kenneth, L.; COLVIN, Kenneth, W.; TANGEDAHL, Michael, J.; BAILEY, Andyle, G. |
| A rotating diverter (108) for isolating fluid in a well (30) from other fluid above the well (30) is provided. The rotating diverter (108) includes a housing body (162) which has a bore (168) running through it. A retrievable spindle assembly (178) which includes a spindle (178) and a bearing assembly (184) is disposed in the bore (168). The bearing assembly (184) supports the spindle (178) for rotation. The spindle (178) is adapted to receive and seal around a tubular member, and rotation of the tubular member rotates the spindle (178) within the bore (168). A lock member (176) is disposed in the housing body (162) to secure the retrievable spindle assembly (178) to the housing body (162). | ||||||
| 86 | DUAL VALVE WELL CONTROL IN UNDERBALANCED WELLS | EP01978579.9 | 2001-10-17 | EP1327051A2 | 2003-07-16 | PIA, Giancarlo |
| A method of isolating a reservoir of production fluid in a formation comprises providing a pair of valves (14, 16) in a bore intersecting a production formation and in which the hydrostatic pressuer in the bore at the formation is normally lower than the formation pressure, and then ontrolling the valves (14, 16) from surface such that the valves (14, 16) will only move from a closed configuration to an open configuration on experiencing a predetermined differential pressure across the valves. | ||||||
| 87 | Underbalanced well completion | EP99306956.6 | 1999-09-01 | EP0989284A3 | 2002-10-09 | Webb, Alan B.; Dennistoun, Stuart M.; Meaders, Wade |
A method of controlling operation of a valve (10) in a subterranean well. The method comprising the steps of: conveying an apparatus into the valve (10), the apparatus having a shifting device releasably secured to the apparatus; engaging the shifting device with a portion of the valve (10); applying a biasing force to the shifting device, thereby displacing the valve portion in a first direction; releasing the shifting device from the apparatus; and depositing the shifting device in the valve (10). The valve comprises: a structure (26) positionable in a selected one of first and second positions to close and open the valve (10), respectively. The shifting device engages the structure to displace the structure (26) between the first and second positions, and the shifting device being released from the apparatus and deposited in the valve (10) when the structure (26) is in one of the first and second positions. |
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| 88 | METHOD OF CREATING A WELLBORE | EP00940294.2 | 2000-05-30 | EP1181432A1 | 2002-02-27 | COENEN, Josef, Guillaume, Christoffel; MAEKIAHO, Leo, Bernhard |
| A method of creating a wellbore in an earth formation, the wellbore including a first wellbore section and a second wellbore section penetrating a hydrocarbon fluid bearing zone (64) of the earth formation, is provided. The method comprises drilling the first wellbore section, arranging a remotely controlled drilling device (3) at a selected location in the first wellbore section, from which selected location the second wellbore is to be drilled, and arranging a hydrocarbon fluid production conduit (70) in the first wellbore section in sealing relationship with the wellbore wall, the conduit being provided with fluid flow control means (76) and a fluid inlet in fluid communication with said selected location. The drilling device is operated to drill the second wellbore section whereby during drilling of the drilling device through the hydrocarbon fluid bearing zone, flow of hydrocarbon fluid from the second wellbore section into the production conduit is controlled by the fluid flow control means (76). | ||||||
| 89 | DRILLING METHOD | EP99949233.3 | 1999-10-14 | EP1121508A1 | 2001-08-08 | AYLING, Laurence, John |
| In drilling wells tubular members are added to or removed from the drill string whilst the circulation of mud continues and there is a blind preventer (6) positioned between lower slips and grips (8) engaging a downhole drill string and an upper slips and grips (5) engaging a tubular to be added to the drill string and the tubular is positioned on the blind preventer, the blind preventer opened and the upper slips and grips passed through the blind preventer and the tubular connected to the drill string. | ||||||
| 90 | ROTATING SUBSEA DIVERTER | EP99915061 | 1999-03-26 | EP1071862A4 | 2001-05-16 | PELATA KENNETH L; COLVIN KENNETH W; TANGEDAHL MICHAEL J; BAILEY ANDYLE G |
| A rotating diverter (108) for isolating fluid in a well (30) from other fluid above the well (30) is provided. The rotating diverter (108) includes a housing body (162) which has a bore (168) running through it. A retrievable spindle assembly (178) which includes a spindle (178) and a bearing assembly (184) is disposed in the bore (168). The bearing assembly (184) supports the spindle (178) for rotation. The spindle (178) is adapted to receive and seal around a tubular member, and rotation of the tubular member rotates the spindle (178) within the bore (168). A lock member (176) is disposed in the housing body (162) to secure the retrievable spindle assembly (178) to the housing body (162). | ||||||
| 91 | Underbalanced well completion | EP99306957.4 | 1999-09-01 | EP0985797A2 | 2000-03-15 | Vick, Michael L. |
A packer setting tool (130) for setting a packer of the type which is set by displacing a mandrel relative to an outer slip assembly thereof. The tool (130) comprises a generally tubular mandrel assembly (146) having a flow passage (134) formed therethrough and a first port (144) formed through a sidewall thereof, the mandrel assembly (146) being attachable to the packer mandrel; a piston (162) reciprocably disposed relative to the mandrel assembly (146) and displaceable relative to the mandrel assembly (146) in response to fluid pressure in the first port (144); and an isolation structure (132) positionable in a selected one of first and second positions relative to the mandrel assembly (146). The isolation structure (132) blocks fluid communication between the flow passage (134) and the first port (144) in the first position, and the isolation structure uncovers the first port (144) and permitting fluid flow between the first port (144) and the flow passage (134) in the second position. |
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| 92 | Drill stem testing with tubing conveyed perforation | EP93300457.4 | 1993-01-22 | EP0554013A1 | 1993-08-04 | Barrington, Burchus Q.; George, Flint R. |
A well test string (148) includes an annulus pressure responsive tester valve (160) and a tubing conveyed perforating gun (172) including a tubing pressure actuated time delay firing mechanism (170). A compression set packer (10A) is disposed in the test string between the tester valve (160) and the perforating gun (172). The packer includes a bypass valve (90) for communicating the well (178) below the packer with the tubing bore (158). The bypass valve (90) is operably associated with the packer (10A) so that the bypass valve is open prior to setting the packer and so that the bypass valve is closed as the packer is set. The compression set packer (10A) also includes a one-way equalizer valve (92) for allowing one-way fluid flow from the well (178) below the packer to the tubing bore (158). The equalizer valve (92) is operably associated with the bypass valve (90) so that the equalizer valve is inoperable when the bypass valve is open, and so that the equalizer valve is operable when the bypass valve is closed. |
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| 93 | Wellbore reverse circulation with flow-activated motor | US15112017 | 2015-09-29 | US10119367B2 | 2018-11-06 | Bharat Bajirao Pawar; Amr Z. El-Farran; Giuseppe Ambrosi |
| A well system includes a work string extendable into a wellbore, and a pump that pumps a fluid into an annulus defined between the work string and the wellbore. A flow-activated motor is coupled to the work string and has a housing that receives the fluid pumped into the annulus. The flow-activated motor further includes a driveshaft rotatably positioned within the housing and a plurality of rotor vanes coupled to the driveshaft, wherein the driveshaft rotates as the fluid flows through the housing and impinges on the plurality of rotor vanes. A rotating agitator tool is coupled to the driveshaft such that rotation of the driveshaft correspondingly rotates the rotating agitator tool. The rotating agitator tool engages and loosens debris in the wellbore while rotating, and the debris is entrained in the fluid and flows through the flow-activated motor and subsequently to a surface location for processing. | ||||||
| 94 | System and method for managing pressure when drilling | US14647839 | 2012-12-28 | US10113378B2 | 2018-10-30 | Neal Gregory Skinner |
| A pressure management device of a drilling system is disclosed. The device includes a housing, a primary bearing package coupled to the housing such that the primary bearing package is not removable from the housing. The primary bearing package is further configured to rotate with respect to the housing. The device also includes a sealing package configured to automatically seal between a drill pipe and the primary bearing package in response to an insertion of the drill pipe through the housing. | ||||||
| 95 | Low profile rotating control device | US14496681 | 2014-09-25 | US10087701B2 | 2018-10-02 | Thomas F Bailey; James W. Chambers; Don M. Hannegan; David R. Woodruff |
| A system and method is provided for a low profile rotating control device (LP-RCD) and its housing mounted on or integral with an annular blowout preventer seal, casing, or other housing. The LP-RCD and LP-RCD housing can fit within a limited space available on drilling rigs. An embodiment allows a LP-RCD to be removably disposed with a LP-RCD housing by rotating a bearing assembly rotating plate. A sealing element may be removably disposed with the LP-RCD bearing assembly by rotating a seal retainer ring. Alternatively, a sealing element may be removably disposed with the LP-RCD bearing assembly with a seal support member threadedly attached with the LP-RCD bearing assembly. The seal support member may be locked in position with a seal locking ring removably attached with threads with the LP-RCD bearing assembly over the seal support member. Spaced apart accumulators may be disposed radially outward of the bearings in the bearing assembly to provide self lubrication to the bearings. | ||||||
| 96 | METHOD OF OPERATING A DRILLING SYSTEM | US15755094 | 2016-08-23 | US20180245411A1 | 2018-08-30 | BRIAN PICCOLO; CHRISTIAN LEUCHTENBERG; HENRY PINKSTONE |
| A method of operating a drilling system. The drilling system includes a drill string extending into a wellbore, a driver which rotates the drill string, a pump to pump drilling fluid down the drill string, a wellhead mounted at the wellbore, a riser extending up from the wellhead around the drill string, a blowout preventer mounted on the wellhead, a riser closure device mounted in the riser, a first return conduit, and a flow outlet arranged in the riser below the riser closure device. The method includes operating the driver to stop a rotation of the drill string, closing the riser closure device if it is not already closed, operating the pump to stop a pumping of drilling fluid down the drill string, closing the blowout preventer, and increasing a wellbore pressure by controlling a rate of the flow of the fluid along the first return conduit. | ||||||
| 97 | Method and Apparatus for Determining the Permeability of a Fracture in a Hydrocarbon Reservoir | US15887597 | 2018-02-02 | US20180216454A1 | 2018-08-02 | Antonio Calleri |
| A method for determining the permeability of a fractured zone in the subsoil, wherein at least one well is being drilled and at least said fractured zone is encountered, includes: detecting at least one value of a characteristic quantity associated with said well; retrieving from a memory a mathematical model descriptive of said characteristic quantity and dependent on at least the permeability of said fractured zone; activating a processor for: obtaining at least one calculated value of said characteristic quantity by means of said mathematical model; comparing said calculated value with said detected value; calculating a permeability value of said fractured zone as a function of said comparison; generating an output signal representative of said permeability value. Also described is an apparatus for determining the permeability of a fractured zone in the subsoil. | ||||||
| 98 | FLUID TRANSFER DEVICE USABLE IN MANAGED PRESSURE AND DUAL GRADIENT DRILLING | US15808240 | 2017-11-09 | US20180135368A1 | 2018-05-17 | Roger Sverre Stave; Roger Fincher |
| A fluid transfer device for use in wellbore drilling includes at least one pressure vessel having a fluid port at a bottom thereof for entry and discharge of one of a working fluid or a power fluid and a fluid port at a top thereof for entry and discharge of the other of the power fluid or the working fluid. The pressure vessel has a barrier fluid between the power fluid and the working fluid. Valves are coupled to the power fluid port for selective introduction of the power fluid into the at least one pressure vessel. Valves are coupled to the working fluid port such that the working fluid is constrained to flow in only one direction. | ||||||
| 99 | Dual circulation drilling system | US14976641 | 2015-12-21 | US09970245B2 | 2018-05-15 | Ian Speer; Warren Strange |
| A ground drill system 10 has a drill string 14 which forms first and second mutually isolated fluid paths 16 and 18 respectively. The drill string 14 has an up hole end 20 coupled to a dual circulation rotation head 22 and a down hole end 24 which is coupled to a drilling tool 12. The drilling tool 12 is operated by the flow of fluid delivered through the first flow path 16. A second fluid outlet 26 is provided intermediate the up hole end 20 and the drilling tool 12. The outlet 26 is in fluid communication with the second fluid flow path 18 and located a constant or fixed distance from the drilling toll 12. The second fluid outlet 26 discharges a flushing fluid flowing through the flushing flow path 18 into a hole being drilled by the drilling system 10. The rotation head 22 provides torque to the drill string 14 and thus the drilling tool 12. | ||||||
| 100 | Apparatus and method for controlling pressure in a borehole | US14404863 | 2012-10-24 | US09963947B2 | 2018-05-08 | Ivar Kjøsnes; Nils Lennart Rolland |
| There is described a technique for drilling and controlling the fluid pressure of a borehole (2, 102) during drilling of the borehole. In embodiments of the invention, drill pipe (5) may be arranged in said borehole, the pipe being configured to provide drilling fluid in the borehole. Sealing means (14, 18, 114, 118) may be provided and arranged to sealingly abut an outer surface of the drill pipe to separate said drilling fluid in the borehole on a first side of the sealing means from a column of fluid on a second side of the sealing means. Furthermore, a subsea pump arrangement (12, 112) may be arranged under a sea surface where it receives a flow of said drilling fluid from the borehole. The pump arrangement can operate to pump drilling fluid out of the pump arrangement, and generate a fluid pressure in said drilling fluid at a location upstream of the pump arrangement, said generated pressure being less than or equal to the hydrostatic pressure of said column of fluid on said second side of the sealing means. | ||||||
