-
公开(公告)号：EP1682746B1
公开(公告)日：2010-05-19
申请号：EP04791579.8
申请日：2004-10-25
申请人： ANDERGAUGE LIMITED
CPC分类号： E21B31/113 , E21B28/00 , E21B31/005
摘要： A method of running a bore-lining tubing string into a bore includes running a tubing string, typically a liner string, into a bore while agitating the string. The agitation of the string reduces the friction between the string and the bore wall and thus facilitates the translation of the string into the bore. The agitation may also take place while the tubing is being cemented in the bore. Pressure pulses may be applied to fluid in the bore, which fluid may be cement slurry.
摘要翻译： 将衬砌管柱运行到孔中的方法包括将管柱（通常为衬管）运行到孔中，同时搅拌柱。 弦的搅动减小了绳和孔壁之间的摩擦力，从而有助于将绳子平移到孔中。 当管道被接合在孔中时也可能发生搅拌。 压力脉冲可以施加到孔中的流体，该流体可以是水泥浆。
-
公开(公告)号：EP1354120B1
公开(公告)日：2008-07-30
申请号：EP02710111.2
申请日：2002-01-23
申请人： ANDERGAUGE LIMITED
发明人： EDDISON, Alan Martyn
CPC分类号： E21B7/062
摘要： Directional drilling apparatus having a non-rotating mass rotatably mounted on a mandrel and with a centre-of-gravity spaced form the mandrel axis. An offsetting arrangement is coupled to the mass, and has an outer profile defining an offset relative to the mandrel axis, and a bearing portion rotatably mounted on the offsetting portion. The apparatus is run on a string, and the offsetting portion is oriented relative to the mass. When the string is rotated the mass tends towards an orientation with its centre-of-gravity positioned towards the low side of the bore and tends to maintain the offsetting portion in a desired relative orientation.
-
公开(公告)号：EP1920132A1
公开(公告)日：2008-05-14
申请号：EP06765231.3
申请日：2006-08-07
申请人： ANDERGAUGE LIMITED
IPC分类号： E21B10/32
CPC分类号： E21B10/322
摘要： A downhole apparatus comprises a body (14), extendable members (12) mounted on the body (14) and being movable between retracted and extended configurations, and a remotely operable retaining arrangement for maintaining the extendable members in the retracted configuration. The extendable members (12) may be cutters, such that the apparatus may be a cutting apparatus, such as a reamer. An operator may control the apparatus to retain the cutting members (12) in the retracted configuration, or prevent the extension of the cutting members (12).
-
公开(公告)号：EP1315882B1
公开(公告)日：2007-05-30
申请号：EP01963233.0
申请日：2001-09-04
申请人： ANDERGAUGE LIMITED
发明人： EDDISON, Alan Martyn
IPC分类号： E21B31/00
CPC分类号： E21B31/005
摘要： A method of freeing stuck objects (16) from a bore (14) comprises running a string (12) into the bore (14), the string (12) including a flow modifier (22), such as a valve, for producing variations in the flow of fluid through the string, and a device (26) for location in the string and adapted to axially extend or contract in response to variations in the flow of fluid through the string. A portion of the string (12) engages the stuck object (16). Fluid is then passed through the string while applying tension to the string, whereby the tension applied to the stuck object varies in response to the operation of the flow modifier and the extending or retracting device.
-
公开(公告)号：EP0901562B1
公开(公告)日：2004-10-13
申请号：EP97923175.0
申请日：1997-05-16
申请人： ANDERGAUGE LIMITED
摘要： Downhole flow pulsing apparatus comprises a housing (14) for location in a drillstring, the housing (14) defining a throughbore to permit passage of fluid through the housing. A valve (27, 30) is located in the bore and defines a flow passage (29, 31). The valve includes a valve member (27) which is movable to vary the area of the passage (29, 31) to provide a varying fluid flow therethrough. A fluid actuated positive displacement motor (15, 16) is associated with the valve member (27). In a preferred embodiment, the apparatus is provided in combination with a drill bit (5) and a pressure responsive device, such as a shock-sub (3), which expands or retracts in response to the varying drilling fluid pressure created by the varying flow passage area. The expansion or retraction of the shock-sub (3) provides a percussive effect at the drill bit.
-
公开(公告)号：EP0882172B1
公开(公告)日：2002-07-03
申请号：EP97905291.7
申请日：1997-02-27
申请人： ANDERGAUGE LIMITED
IPC分类号： E21B47/022 , G01C9/14
CPC分类号： G01C9/14 , E21B47/02232
摘要： A mounting arrangement for a pendulum in a downhole drift indicator comprises a plunger (26) and a pendulum (46) defining respective normally spaced apart first and second surfaces, and a pivot connection (54) between the plunger and pendulum including a connecting pivot member (56). On the pivot connection being subject to a predetermined load the first and second surfaces engage to limit the load experienced by the pivot member. Also disclosed is a drift indicator biassing arrangement, the arrangement including a housing (40) partially defining a volume (38) for containing a fluid reservoir, a signalling plunger (26) and floating piston (42) defining respective wall portions of the volume and being moveable relative to the housing. A spring (88, 89) acts on the piston to compress the fluid in the volume and move the signalling plunger relative to the housing.
-
公开(公告)号：EP0882172A1
公开(公告)日：1998-12-09
申请号：EP97905291.0
申请日：1997-02-27
申请人： ANDERGAUGE LIMITED
CPC分类号： G01C9/14 , E21B47/02232
摘要： A mounting arrangement for a pendulum in a downhole drift indicator comprises a plunger (26) and a pendulum (46) defining respective normally spaced apart first and second surfaces, and a pivot connection (54) between the plunger and pendulum including a connecting pivot member (56). On the pivot connection being subject to a predetermined load the first and second surfaces engage to limit the load experienced by the pivot member. Also disclosed is a drift indicator biassing arrangement, the arrangement including a housing (40) partially defining a volume (38) for containing a fluid reservoir, a signalling plunger (26) and floating piston (42) defining respective wall portions of the volume and being moveable relative to the housing. A spring (88, 89) acts on the piston to compress the fluid in the volume and move the signalling plunger relative to the housing.
-
-
-
-
-
-
搜索结果
27 条记录 (耗时 0.011 秒)
