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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	Downhole drilling assembly	EP13184640.4	2010-03-19	EP2677112A2	2013-12-25	Downie, Andrew McPherson; Vitale, Pascal Michel; Boussi, Bachar
A downhole stabiliser (5), such as a drill motor stabiliser, comprises at least one reaming means and/or reinforcing means (10). The present invention also relates to an assembly (30), such as a downhole drilling assembly (31), comprising at least one such stabiliser (5) and/or a drill bit (40,41) comprising a gauge bit (42) at or near a drilling end (45) thereof, and a connection means (46) for connecting the drill bit (40,41) to a drill motor assembly (60), wherein the drill bit gauge (42) comprises a substantially cylindrical portion having a length less than or equal to approximately 1.0 times the nominal bit diameter. The present invention also relates to a novel locking mechanism (80), such as a lock and key mechanism, to allow locking of a shaft (70'), e.g. a motor drive shaft (71'), through or together with a stabiliser (5').
82	Rotatable wireline tool of enhanced hydraulic drive consistency	EP11250926.0	2011-12-13	EP2466056A2	2012-06-20	Jensen, Michael
A rotatable downhole cutting tool configured for enhanced drive consistency in low power circumstances. The tool is equipped with a hydraulic axial drive actuator suitable for use in wireline deployment. The actuator itself includes a reciprocating piston with a ball screw that threadably interfaces a ball nut for dampening the axial drive imparted by the piston. As such, even though hydraulically driven at generally well under about 10 horsepower, bounce in the axial drive is substantially eliminated. This is particularly advantageous where cutting is to be applied to downhole metal based obstructions.
83	Verfahren zum Betreiben eines Arbeitsmoduls und Vorrichtung zur Übertragung von Drehmomenten und Drehzahlen eines Antriebsaggregats in das Arbeitsmodul	EP98104400.1	1998-03-11	EP0866210A2	1998-09-23	Haberer, Hans; Weixler, Leonhard
Die Erfindung betrifft ein Verfahren zum Betreiben eines Arbeitsmoduls oder Werkzeugs, insbesondere in einem Bohrloch, mit Hilfe eines Aggregats, dessen Drehmoment und Drehzahl übertragen werden, sowie eine Vorrichtung zur Übertragung des Drehmoments und der Drehzahl auf das Arbeitsmodul. Um beim Abbohren eines Bohrloches mit Hilfe eines Kraftdrehkopfes mit Bohrgestänge Hindernisse im Bohrloch, beispielsweise Felsgestein, Findlinge etc., ohne Einsatz eines zusätzlichen Spezialwerkzeugs beseitigen zu können, werden ein Verfahren sowie eine Vorrichtung vorgeschlagen, welche den Einsatz eines Hydraulikkopfes vorsehen. Der Hydraulikkopf ist ein Arbeitsmittel zur Übertragung von Drehmoment und Drehzahl und zur zeitweisen Erzeugung hydraulischer Leistung aus mechanischen Grössen, dem Drehmoment und der Drehzahl, eines Bohrgestänges, welche zur Bohrlochsohle geführt wird.
84	APPAREIL DE FORAGE PETROLIER, GAZIER OU GEOTHERMIQUE	EP92907586.0	1992-04-03	EP0578690A1	1994-01-19	Leroy, André
L'objet de l'invention est un appareil de forage pétrolier, gazier ou géothermique comportant un outil central et un trépan coaxiaux dans lequel l'outil central est entraîné par le rotor d'un moteur de fond alimenté par la boue de forage et dans lequel le trépan est entraîné, depuis la surface, par les tiges d'un train de forage appartenant à un système rotary, ces mêmes tiges soumettant l'appareil à un effort axial. Il est caractérisé en ce que, entre le stator (4) du moteur de fond et l'embase (5) du trépan, existe une liaison prismatique qui permet le déplacement axial relatif des deux outils et en ce qu'un ressort (6) est interposé entre le stator (4) et l'embase (5) de manière à être contraint par le stator quand l'outil central tend à prendre du retard par rapport au trépan dans leurs mouvements d'avance respectifs, afin de contrôler le déplacement axial relatif des deux outils et de répartir entre eux, en fonction de ce déplacement, l'effort axial auquel l'appareil est soumis. Application à l'industrie du matériel de forage notamment pétrolier, gazier ou géothermique.
85	Dispositif pour le forage immergé de fondations	EP87400902.0	1987-04-17	EP0242307A1	1987-10-21	Barthelemy, Hervé; Bollinger, Karl; Brochier, Michel; Gau, Maurice; Legendre, Yves
L'invention est relative à un dispositif pour le forage immergé de fondations, comprenant au moins une fraise (27) et une pompe (29) de refoulement des déblais, et des moteurs hydrauliques pour entraîner ladite fraise et ladite pompe. Il comprend une turbine hydraulique (16) susceptible de fonctionner à aide d'un fluide tel que l'eau de mer, et une centrale hydraulique entraînée par ladite turbine et agencée pour alimenter lesdits moteurs hydrauliques.
86	Bohrwerkzeug für Tiefbohrungen	EP87101789.3	1987-02-10	EP0232891A2	1987-08-19	Jürgens, Rainer, Dr. Ing.; Hense, Ulrich, Dr. Ing.
Ein Bohrwerkzeug für Tiefbohrungen umfaßt ein in einem Gehäuse (1) abgestütztes Antriebsaggregat (2) , z.B. einen von der Bohrspülung betätigten Tieflochmotor, und zumindest einen über eine Kupplung (20) von dem Antriebsaggregat (2) angetriebenen Verbraucher (9), z.B. Generator, Pumpe od dgl. Dabei ist als Kupplung eine berührungslose Dauermagnetkupplung (20) vorgesehen.
87	HYDRAULIC DOWN-THE-HOLE ROCK DRILL	EP82902170.8	1982-07-09	EP0096037B1	1986-01-15	NYMAN, Karl-Erik
Method and apparatus for drilling deep holes in the rock or the like. The apparatus is adapted to be attached to the end of a drill string (1) and be sunk to the bottom of the bore hole (27). The apparatus comprises a pilot control unit (B), a hydraulic engine (12), a hydraulic pump (16), and impact apparatus (21) and a drill bit (23). Drilling mud which is fed down through the drill string to flash up the cuttings drives the hydraulic engine which is of a robust construction and will withstand the abrasive drilling mud. The output shaft (15) of the engine drives the hydraulic pump which pumps high grade hydraulic fluid to the impact apparatus which is a hydraulically driven hammer rock drill of known construction. The impact piston strikes against the drill bit. The whole apparatus is rotated by means of a rotary machine placed on the ground level. Due to the pilot control unit (B) the apparatus only has to carry its own dead weight and openings and valves provide a bypass and stopping, respectively, of the drilling mud.
88	DOWNHOLE ACTIVATION SYSTEM USING MAGNETS AND METHOD THEREOF	EP12866171.7	2012-12-27	EP2805006B1	2017-02-01	WILSON, Kenneth

89	TORQUE TRANSFER MECHANISM FOR DOWNHOLE DRILLING TOOLS	EP12887181	2012-10-25	EP2880242A4	2016-06-15	AGARWAL PUNEET; GAIKWAD RAHUL R; GAJJI BHARGAV

90	Downhole drilling assembly	EP13184640.4	2010-03-19	EP2677112A3	2015-12-30	Downie, Andrew McPherson; Vitale, Pascal Michel; Boussi, Bachar
A downhole stabiliser (5), such as a drill motor stabiliser, comprises at least one reaming means and/or reinforcing means (10). The present invention also relates to an assembly (30), such as a downhole drilling assembly (31), comprising at least one such stabiliser (5) and/or a drill bit (40,41) comprising a gauge bit (42) at or near a drilling end (45) thereof, and a connection means (46) for connecting the drill bit (40,41) to a drill motor assembly (60), wherein the drill bit gauge (42) comprises a substantially cylindrical portion having a length less than or equal to approximately 1.0 times the nominal bit diameter. The present invention also relates to a novel locking mechanism (80), such as a lock and key mechanism, to allow locking of a shaft (70'), e.g. a motor drive shaft (71'), through or together with a stabiliser (5').
91	DOWNHOLE ROTARY TRACTOR	EP13788847.5	2013-10-25	EP2912252A2	2015-09-02	FRASER, Scott, David
A towing string useful for positioning a towed assembly into a horizontal well bore includes a towed assembly coupled to a tractor assembly. The tractor assembly is operable to convert introduced energy into a pulling force that is directed downhole. The tractor assembly includes a disposable motor and a coupled rotary tractor. The rotary tractor has a rotating portion that is operable to rotate around a central axis of the rotary tractor and a rotary element that is operable to frictionally engage the well bore wall. A method for using the towing string for positioning the towed assembly in the horizontal section includes introducing the towing string into the horizontal well bore, operating the towing string such that the rotary element frictionally engages the well bore wall, and introducing energy to the towing string such that the tractor assembly provides a pulling force directed downhole.
92	DOWNHOLE ACTIVATION SYSTEM USING MAGNETS AND METHOD THEREOF	EP12866171	2012-12-27	EP2805006A4	2015-08-05	WILSON KENNETH

93	TORQUE TRANSFER MECHANISM FOR DOWNHOLE DRILLING TOOLS	EP12887181.1	2012-10-25	EP2880242A1	2015-06-10	AGARWAL, Puneet; GAIKWAD, Rahul, R.; GAJJI, Bhargav
A well tool drilling tool can include a torque transfer mechanism with an inner mandrel, an outer housing, and at least one pawl which displaces radially and thereby selectively permits and prevents relative rotation between the inner mandrel and the outer housing. A drill string can include a drill bit, a drilling motor, and a torque transfer mechanism which permits rotation of the drill bit in only one direction relative to the drilling motor, the torque transfer mechanism including at least one pawl which displaces linearly and thereby prevents rotation of the drill bit in an opposite direction relative to the drilling motor.
94	DRILLING SYSTEM	EP08851047.4	2008-11-19	EP2229497B1	2014-07-16	DOWNTON, Geoffrey, C.; ISKANDER, Sami; UTTER, Robert

95	CUTTING TOOL INTEGRATED IN A DRILLSTRING	EP11751677.3	2011-08-12	EP2603660A1	2013-06-19	TAGHIPOUR KHADRBEIK, Mohammad Ali
The present invention discloses a cutting tool integrated in a drillstring for enlarging a borehole, where the cutting tool at least comprises: one or more side mills (12, 13, 14) arranged along the axis of said drillstring in a reamer housing (11), where the side mills (12, 13,14) are adapted to be rotated relative to the tool housing (11) by individual driving means. The self driven rotational side mills may be dome shaped cones where expand radially out of the reamer housing (11), or may be a special non-circular dome shaped cones where rotates without expanding.
96	DOWNHOLE DRILLING ASSEMBLY	EP10712750.8	2010-03-19	EP2408996A2	2012-01-25	DOWNIE, Andrew, McPherson; VITALE, Pascal, Michel; BOUSSI, Bachar
A downhole stabiliser (5), such as a drill motor stabiliser, comprises at least one reaming means and/or reinforcing means (10). The present invention also relates to an assembly (30), such as a downhole drilling assembly (31), comprising at least one such stabiliser (5) and/or a drill bit (40,41) comprising a gauge bit (42) at or near a drilling end (45) thereof, and a connection means (46) for connecting the drill bit (40,41) to a drill motor assembly (60), wherein the drill bit gauge (42) comprises a substantially cylindrical portion having a length less than or equal to approximately 1.0 times the nominal bit diameter. The present invention also relates to a novel locking mechanism (80), such as a lock and key mechanism, to allow locking of a shaft (70'), e.g. a motor drive shaft (71'), through or together with a stabiliser (5').
97	DRILLING SYSTEM	EP08851047.4	2008-11-19	EP2229497A1	2010-09-22	DOWNTON, Geoffrey, C.; ISKANDER, Sami; UTTER, Robert
A drilling system comprising a rotatable drill pipe 12 connected to a tractor unit 10, and a steerable drilling system 18, 20, 22, connected to and movable by the tractor unit 10.
98	Vorrichtung und Verfahren zum Bereitstellen hydraulischer Energie	EP04027934.1	2004-11-24	EP1662087B1	2007-01-31	Finkenzeller, Stefan

99	LOCOMOTIVE OR TRACTOR FOR PULLING EQUIPMENT IN A PIPE OR DRILL HOLE	EP95910021.0	1995-02-14	EP0772728A1	1997-05-14	BOE, Einar; CARLSEN, Hans, Paul; HOLGERSEN, Stig; HAUGERUD, Olav, Sveinung
A locomotive or tractor (3) for pulling wire/cable-operated equipment such as measuring, logging and processing equipment in a borehole, pipe etc., comprising a long body with means of propulsion, including one or more motors for propelling the tractor. The means of propulsion consist of at least one set of rollers (13), which can be rotated and are axially inclined in relation to the tractor, with a rounded surface which has a number of sharp parts or edges; the set of rollers (13) are arranged in connection with a driven unit (8), which rotates externally in relation to the support structure (16) of the tractor and which is provided with means (14) which are designed to move the rollers in a radial direction and press them (13) against the wall of the borehole or pipe wall. The tractor is also provided with at least one set of control wheels (31), which are freely supported in relation to the tractor, which can be moved, by means of other means (32, 33), in a radial direction in relation to the tractor and which are designed to roll along the pipe wall or wall of the borehole and keep the tractor centrically oriented in relation to the pipe or borehole and prevent the tractor from rotating.
100	APPAREIL DE FORAGE PETROLIER, GAZIER OU GEOTHERMIQUE	EP92907586.9	1992-04-03	EP0578690B1	1995-12-13	Leroy, André
An oil, gas or geothermal drilling apparatus comprising a central tool and a drill bit coaxial therewith, wherein said central tool is driven by the rotor of a downhole motor supplied with drilling mud, and wherein the drill bit is driven from the surface by the string of a drill-pipe in a rotary system, with said string causing a thrust load in said apparatus. Between the stator (4) of the downhole motor and the foot (5) of the drill bit there is a prismatic linkage allowing relative axial movement of the tools, and a spring (6) is placed between the stator (4) and the foot (5) so as to be stressed by the stator when the central tool's advancing movement falls behind that of the drill bit, whereby the relative axial movement of the two tools can be controlled and the thrust load to which the apparatus is subject can be shared out between them according to said movement. The apparatus may be used in the drilling equipment industry, particularly for oil, gas or geothermal drilling.

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