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公开(公告)号：EP2917479B1
公开(公告)日：2018-02-14
申请号：EP12887916.0
申请日：2012-12-03
CPC分类号： E21B17/1078 , E21B7/00 , E21B17/00 , E21B17/003 , E21B17/16 , E21B23/01 , E21B23/02 , E21B47/00 , E21B47/01 , E21B47/011 , E21B47/122 , E21B47/123 , E21B47/18
摘要： A downhole probe is adapted to be supported in drill string sections having different internal diameters with the use of a set of interchangeable centralizers. Each centralizer is dimensioned to snugly receive the downhole probe and to bear against the bore wall of a drill-string section. Interchangeable axial supports such as spiders may also be provided in a set. The downhole probe may comprise a slick body. As drilling progresses the downhole probe may be adapted to be received in drill string sections of varying diameters.
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2.发明授权MEASUREMENT WHILE DRILLING TOOL WITH INTERCONNECT ASSEMBLY 有权MESSUNGWÄHRENDDES BOHRENS MITHILFE EINER VERBINDUNGSANORDNUNG
公开(公告)号：EP2027365B1
公开(公告)日：2017-01-18
申请号：EP07798309.6
申请日：2007-06-08
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公开(公告)号：EP2929138A1
公开(公告)日：2015-10-14
申请号：EP12889632.1
申请日：2012-12-07
发明人： LIU, Jili (Jerry) , DERKACZ, Patrick, R. , LOGAN, Aaron, W. , LOGAN, Justin, C. , SWITZER, David, A.
IPC分类号： E21B47/01 , E21B19/24 , E21B47/017
CPC分类号： E21B47/01 , E21B17/1007 , E21B17/1078 , E21B17/16 , E21B47/011
摘要： A method for using a downhole probe. The method comprises providing a probe, at least one vertical cross section of the probe having an area of at least pi inches squared. The method further comprises inserting the probe into a bore of a drill collar and passing a drilling fluid through the bore of drill collar at a flow velocity of less than 41 feet per second.
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公开(公告)号：EP2795056A2
公开(公告)日：2014-10-29
申请号：EP12815905.0
申请日：2012-12-19
发明人： ZHOU, Shaohua
IPC分类号： E21B43/26
CPC分类号： E21B43/261 , E21B17/076 , E21B17/16 , E21B33/1208 , E21B43/26
摘要： A method of fracturing a formation 24 that at the same time drills a wellbore 22 through the formation 24 selectively deploys a seal from a drill string 26 to define a space 64 in the wellbore 22 beneath the seal; and the pressurizes the space 64. The seal can be formed by moving sliding blades 58 into channels 56 between cutting blades 42 on a drill bit 40. The seal can also be a packer 62 on the drill bit 40 that selectively expands radially outward into sealing engagement with the wellbore 22. At a designated depth in the wellbore 22, the seal is deployed and fluid is diverted into the space 64. A pressurizing system pressurizes the fluid so that pressure in the space 64 overcomes the formation 24 strength and fractures the formation 24 adjacent the enclosed, space 64. The packer 62 can be released, drilling can resume, and. fracturing can occur at a different depth in the wellbore 22.
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5.发明公开Measurement while drilling tool with interconnect assembly 有权Messungwährenddes Bohrens mithilfe einer Verbindungsanordnung
公开(公告)号：EP2749732A1
公开(公告)日：2014-07-02
申请号：EP14161362.0
申请日：2007-06-08
摘要： Disclosed are methods of sampling a formation fluid, including flowing a formation fluid into a first flow line, measuring a first property of the formation fluid, opening a first valve to expose the formation fluid to a second flow line, pumping the formation fluid with a pump disposed in the second flow line, and directly measuring a second property of the formation fluid with a fluid ID sensor. The methods may further include closing a second valve while pumping to isolate a portion of the formation fluid and measuring a third property of the isolated formation fluid. Measuring the third property may comprise conducting a bubble point test. The methods may additionally include skimming contaminants from the formation fluid by pumping, and flushing the contaminants from the second flow line, which contaminants may be detected using at least one sensor.
摘要翻译： 公开了对地层流体进行取样的方法，包括将地层流体流入第一流动管线，测量地层流体的第一性质，打开第一阀门以将地层流体暴露于第二流动管线，用地层流体 泵，其设置在第二流动管线中，并且用流体ID传感器直接测量地层流体的第二特性。 所述方法可以进一步包括关闭第二阀，同时泵送以分离地层流体的一部分并测量隔离地层流体的第三性质。 测量第三性质可以包括进行泡点测试。 所述方法可以另外包括通过泵送从地层流体中剔除污染物，以及冲洗来自第二流动管线的污染物，该污染物可以使用至少一个传感器来检测。
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6.发明公开INTERFERENCE-FIT STOP COLLAR AND METHOD OF POSITIONING A DEVICE ON A TUBULAR 审中-公开具有定位设备上的管压配合方法停止COVENANT
公开(公告)号：EP2417325A2
公开(公告)日：2012-02-15
申请号：EP10742327.9
申请日：2010-06-04
IPC分类号： E21B17/10
CPC分类号： E21B17/16 , E21B17/04 , E21B17/1028 , E21B17/1064 , E21B17/1078 , E21B17/1085
摘要： In one embodiment, a wear band comprises a rotating element having a bore receivable on a tubular, the bore comprising first and second bore portions slidably receiving first and second sleeve bearings. Outer surfaces of the sleeve bearings slidably engage the bore portions and the bores of the sleeve bearings slidably engage the tubular. A first stop collar and a second stop collar may be received on the tubular to together straddle the rotating element and sleeve bearings to longitudinally secure the rotating element in a position on the tubular. The tubular may be included within a tubular string run into a borehole or into the bore of an installed casing, such as in casing while drilling. The rotating element provides stand-off between a tubular and the wall of a bore, reduces frictional resistance to longitudinal sliding and also to rotation of the tubular string within the bore.
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公开(公告)号：EP2027365A2
公开(公告)日：2009-02-25
申请号：EP07798309.6
申请日：2007-06-08
IPC分类号： E21B49/00
摘要： An embodiment of the apparatus includes a first drill collar section having an outer surface, an MWD tool for interaction with an earth formation coupled to the first drill collar section, the MWD tool including a first fluid line and a first electrical conduit, a second drill collar section, and an interconnect assembly coupling the second drill collar section to the first drill collar section, the interconnect assembly comprising a fluid line connection coupled to the first fluid line and an electrical connection coupled to the first electrical conduit. Another embodiment of the apparatus includes a probe, an interconnect assembly adapted for fluid communication and electrical communication, and a sample bottle drill collar section including at least one removable sample bottle in fluid communication with the probe. Another embodiment of the apparatus includes a flush pump mounted in the power collar section and coupled to the probe. An additional embodiment includes a fluid ID sensor disposed in a flow line between the flush pump and the probe.
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公开(公告)号：EP1078190A4
公开(公告)日：2003-04-09
申请号：EP99920274
申请日：1999-04-30
申请人： GRANT PRIDECO INC
发明人： WILSON GERALD E , MOORE R THOMAS , TANG WEI
CPC分类号： E21B17/16 , E21B17/22 , Y10T29/49904 , Y10T403/68
摘要： A heavy weight drill pipe member is disclosed for use in drilling high angle and horizontal well bores in a corrosive environment. The heavy weight drill pipe member consists of a tubular member (10) with a longitudinal bore (29) therethrough, and includes connectors or tool joints (20, 22) attached at each distal end for connecting additional heavy weight drill pipe members. The tubular member (10) and tool joints (20, 22) are preheated, water quenched and tempered to obtain a unique combination of hardness, a yield strength and impact strength for improved resistance to stress corrosion cracking and hydrogen embrittlement in a hydrogen sulfide environment. The tubular member (10) includes a plurality of wear pads or protectors (12, 14, 16) equidistantly spaced along the longitudinal axis of the tubular member (10) to reduce bending stress in the pipe by limiting the degree of bend when the pipe is placed in compression in a high angle well bore. To reduce the chances of differential pressure sticking of the pipe when the pipe is used in high angle or horizontal well bores, each wear pad or protector (12, 14, 16) is provided with spiral grooves (24) therein. Each wear pad or protector (12, 14, 16) may also be hard faced or hard banded to reduce wear.
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公开(公告)号：EP0886717A1
公开(公告)日：1998-12-30
申请号：EP98902030
申请日：1998-01-06
申请人： ELF EXPLORATION PROD
发明人： SANCHO JEAN , GUERIN JEAN-CLAUDE
IPC分类号： E21B17/16
CPC分类号： E21B17/16
摘要： The invention concerns an asymmetrical drill stem, located at the end of an assembly of boring rods for drilling an oil well. The asymmetry is provided by the presence of recesses (24) arranged in the body (20), which recesses are of different sizes, arranged on the external surface of the drill stem and extend for the major part along the drill stem.
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