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公开(公告)号：EP2640921B1
公开(公告)日：2020-03-11
申请号：EP11841152.9
申请日：2011-11-18
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2.发明公开PRESSURE PUMPING VALVES AND METHODS OF MAKING SUCH VALVES 审中-公开VERFAHREN ZUR HERSTELLUNG DAVON的DRUCKPUMPENVENTILE
公开(公告)号：EP3146246A1
公开(公告)日：2017-03-29
申请号：EP15795920.6
申请日：2015-05-15
发明人： FILIPOW, Sean , SINGH, Manjinder , LACOMBE, Kevin , OWINGS, Derek , FERNHOLZ, David , FITZPATRICK, Michael
CPC分类号： F16K1/36 , B23K1/0008 , B23K1/008 , B23K2201/04 , C21D9/0068 , C21D9/50 , F04B53/1025 , F16K15/028 , F16K15/063
摘要： A method for joining a valve member for use within a valve, the method including brazing a body portion having a head and a base, the base having a bore extending a depth therein, to a leg portion having a shaft, the shaft having a distal end, a proximal end opposite the distal end, and a plurality of legs extending radially and axially therefrom and away from the proximal end, the brazing including placing a braze material between the bore and the proximal end, inserting the proximal end into the bore such that a portion of an outer surface of the proximal end is adjacent to an inner surface of the bore, and heating at least the adjacent surfaces to a braze temperature.
摘要翻译： 一种用于连接阀内使用的阀构件的方法，所述方法包括将具有头部和基部的主体部分钎焊，所述基部具有在其中延伸的深度的孔，具有轴的腿部，所述轴具有远端 端部，与远端相对的近端，以及从该近端径向和轴向延伸的多个腿，所述钎焊包括将钎焊材料放置在所述孔和所述近端之间，将所述近端插入所述孔中， 近端的外表面的一部分与孔的内表面相邻，并且至少将相邻表面加热至钎焊温度。
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公开(公告)号：EP2798140B1
公开(公告)日：2016-07-20
申请号：EP12861771.9
申请日：2012-12-21
发明人： EYRE, Ronald K. , BELNAP, Daniel J. , ZHANG, Youhe , SHEN, Yuelin , SHI, Jibin , BURHAN, Yuri
CPC分类号： B24D18/0009 , B22F3/14 , B22F5/00 , B22F7/008 , B22F2005/001 , C04B35/52 , C22C26/00 , E21B10/46 , E21B10/54 , E21B10/567
摘要： A cutting element may be formed by placing a plurality of diamond particles adjacent to a substrate in a reaction cell and subjecting the plurality of diamond particles to high pressure high temperature conditions to form a polycrystalline diamond body. The polycrystalline diamond body may have a cutting face area to thickness ratio ranging from 60:16 to 500:5 and at least one dimension greater than 8 mm.
摘要翻译： 形成切割元件的方法可以包括将多个金刚石颗粒与基底邻近放置在反应池中，并使多个金刚石颗粒经受高压高温条件以形成多晶金刚石体。 多晶金刚石体可以包括60:16至500:5的切割面积与厚度之比。 多晶金刚石体可以具有大于8mm的至少一个尺寸。
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公开(公告)号：EP3008276A1
公开(公告)日：2016-04-20
申请号：EP14810147.0
申请日：2014-06-09
摘要： A downhole tool for increasing a diameter of a wellbore disposed within a subterranean formation. The downhole tool includes an underreamer having a plurality of cutter blocks moveably coupled thereto that move radially-outward from a retracted state to an expanded state. The cutter blocks cut the subterranean formation to increase the diameter of the wellbore from a first diameter to a second diameter when in the expanded state. A formation weakening tool may be coupled to the underreamer. The formation weakening tool weakens a portion of the subterranean formation positioned radially-outward therefrom.
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公开(公告)号：EP1988252A3
公开(公告)日：2015-06-24
申请号：EP08155183.0
申请日：2008-04-25
摘要： A locking clutch (200) to selectively transmit torque from a stator (204) of a downhole tool to a rotor (202) of the downhole tool (201) includes at least one locking pawl (208) disposed upon the rotor (202), wherein the at least one locking pawl comprises a load path, a pivot axis, and a mass center, wherein the at least one locking pawl (208) is biased into an engaged position by a biasing mechanism (214), wherein the at least one locking pawl (208) transmits force from the stator (204) to the rotor (202) along the load path when in the engaged position, and wherein centrifugal force urges the at least one locking pawl (208) into a disengaged position when the rotor (202) is rotated above a disengagement speed.
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公开(公告)号：EP2798139A1
公开(公告)日：2014-11-05
申请号：EP12861366.8
申请日：2012-12-21
发明人： GRIGOR, Charles , SWADI, Shantanu , CROW, Joseph
摘要： A system and method for facilitating the drilling of a deviated borehole. The system and method employ a flexible conveyance. A hydraulic actuation assembly is coupled to the flexible conveyance and a whipstock is releasably coupled to the hydraulic actuation assembly. The whipstock and hydraulic actuation assembly are conveyed downhole in the wellbore. The hydraulic actuation assembly provides a hydraulic fluid under pressure to anchor the whipstock.
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7.发明公开
公开(公告)号：EP2734702A1
公开(公告)日：2014-05-28
申请号：EP12825557.7
申请日：2012-08-24
CPC分类号： E21B17/1014 , E21B23/01 , E21B29/002
摘要： A downhole stabilizer includes a radial expansion assembly deployed about, and configured to rotate substantially freely with respect to, a tool mandrel. The expansion assembly preferably includes at least one stabilizer block configured to extend radially outward from the mandrel into contact with a wellbore casing string. When deployed between uphole and downhole cones, the stabilizer block preferably includes a plurality of angled splines configured to engage corresponding splines disposed on the cones. Relative axial motion between the stabilizer block and the cones causes a corresponding radial extension or retraction of the block.
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公开(公告)号：EP2673452A2
公开(公告)日：2013-12-18
申请号：EP12750076.7
申请日：2012-02-23
发明人： DEWEY, Charles , MITCHELL, Simon
CPC分类号： E21B10/322 , E21B47/08
摘要： A downhole reaming system includes a tubular body having a drill bit disposed on a distal end thereof, and a central bore therethrough, wherein the tubular body is attached to a drillstring, an expandable reamer having cutter blocks coupled thereto and configured to selectively expand radially therefrom, a near-bit reamer disposed proximate the drill bit, the near-bit reamer having cutter blocks coupled thereto and configured to expand therefrom, and a measurement sub configured to measure at least one characteristic of an interior wall of an enlarged wellbore.
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公开(公告)号：EP2434087A3
公开(公告)日：2013-09-11
申请号：EP11183198.8
申请日：2011-09-28
CPC分类号： E21B33/085 , E21B19/006 , Y10T29/49826 , Y10T29/49963
摘要： An adapter assembly comprising a sealing element; a drive bushing; and an adapter flange disposed between the sealing element and the drive bushing. Also, a method of assembling a rotational control device comprising coupling mechanically an adapter flange to a sealing element; coupling mechanically the adapter flange to a drive bushing; and installing the adapter flange, sealing element, and drive bushing in the rotational control device. Additionally, an adapter assembly comprising a first sealing element; a second sealing element; and an adapter flange disposed between the first sealing element and the second sealing element.
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公开(公告)号：EP2572070A2
公开(公告)日：2013-03-27
申请号：EP11784322.7
申请日：2011-05-20
发明人： WU, Jian , HU, Jianbing , TERRACINA, Dwayne P. , RAY, Tommy G.
IPC分类号： E21B10/30
CPC分类号： E21B34/06 , E21B7/28 , E21B10/32 , E21B23/006
摘要： A downhole tool assembly is configured for repeated and selective hydraulic actuation and deactuation. A piston assembly is configured to reciprocate axially in a downhole tool body. The piston assembly reciprocates between a first axial position and second and third axial positions that axially oppose the first position. The downhole tool is actuated when the piston assembly is in the third axial position and deactuated when the piston assembly is in either of the first or second axial positions. A spring member biases the piston assembly towards the first axial position while drilling fluid pressure in the tool body urges the piston assembly towards the second and third axial positions. Downhole tool actuation and deactuation may be controlled from the surface, for example, via cycling the drilling fluid flow rate.
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