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公开(公告)号：EP1041243A3
公开(公告)日：2002-01-02
申请号：EP00302575.6
申请日：2000-03-29
摘要： A method and system for producing a mixed gas-oil stream through a wellbore wherein at least a portion of the gas is separated from the stream downhole and is compressed (e.g. using a SPARC) before both the compressed gas and the remainder of the stream is brought to the surface through separate flowpaths. The system includes a string of tubing which provides the flowpath for the remainder of the stream while the annulus, formed between the tubing string and the wellbore provides the flowpath for the compressed gas.
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2.发明公开
公开(公告)号：EP1119686A1
公开(公告)日：2001-08-01
申请号：EP99947634.4
申请日：1999-09-20
IPC分类号： E21B43/38
CPC分类号： E21B43/385
摘要： A method and system for increasing oil production from an oil well producing a mixture of oil, water, and gas through a wellbore penetrating an oil-bearing formation containing an oil-bearing zone, an aqueous zone, and a gas zone by separating from the mixture of oil, water, and gas in the oil well at least a portion of the water to produce a separated water-enriched portion and a separated oil/gas-enriched portion; driving a turbine with the separated oil/gas-enriched portion; driving a water pump and a compressor in the oil well with the turbine; injecting the separated water-enriched portion into a water injection zone; separating from the separated oil/gas-enriched portion in the oil well at least a portion of the gas to produce a separated gas and the oil-enriched mixture; compressing the separated gas to a pressure greater than a pressure in a gas injection zone to produce a compressed gas; injecting the compressed gas into the gas injection zone; and recovering at least a major portion of the oil-enriched mixture.
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3.发明公开
公开(公告)号：EP1082518A1
公开(公告)日：2001-03-14
申请号：EP99925149.9
申请日：1999-05-27
发明人： BRADY, Jerry , STEVENSON, Mark , KLEIN, John , CAWVEY, James
IPC分类号： E21B43/38
CPC分类号： E21B43/385
摘要： A method and system for increasing oil production from an oil well producing a mixture of oil, water, gas, and/or solids through a wellbore penetrating an oil-bearing formation containing an oil-bearing zone and a selected injection zone, by separating from the mixture of oil, water, gas, and/or solids in the oil well at least a portion of the gas to produce a first separated gas and a first portion of an oil-enriched mixture; directing the first portion of the oil-enriched mixture through a bypass passageway having an outlet in fluid communication with a surface so that the first portion of the oil-enriched mixture bypasses a turbine in the oil well; driving the turbine with the first separated gas; driving a compressor in the oil well with the turbine; separating from the first separated gas in the oil well at least a portion of the gas to produce a second separated gas and a second portion of an oil-enriched mixture; compressing with the compressor the second separated gas to a pressure greater than a pressure in the selected injection zone to produce a compressed gas; injecting the compressed gas into the selected injection zone; and recovering at least a major portion of the first portion of the oil-enriched mixture and the second portion of the oil-enriched mixture.
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公开(公告)号：EP0877146A2
公开(公告)日：1998-11-11
申请号：EP98112950.5
申请日：1993-03-23
IPC分类号： E21B29/00
CPC分类号： E21B29/002 , E21B10/322 , E21B17/1021 , E21B29/005
摘要： A well conduit cutting and milling apparatus (22) conveyable into and out of a well on coilable tubing (27) using a tubing injection unit (21). The apparatus includes tubing or casing cutting arms (30) which are radially extendable and retractable with respect to a cylindrical support body by pressure fluid operated pistons (64, 70). The apparatus is made up of multiple end-to-end connected units including one which supports interchangeable cutting and milling arms (30) and units which have radially extensible and retractable stabilizing arms (38) which engage the inner wall of the tubing (12) or casing (10) to centralize and stabilize the apparatus during operation. The cutter and milling arms (30) are modified for milling away a section of tubing (12) by moving the apparatus in an upward or out of the well direction. The cutting elements (34) are preferably cylindrical hard metal members which are supported on the arms (30) for cutting away an end face of the tubing (12) in a tangential direction of movement.
摘要翻译： 甲井管道切割和研磨设备（22）输送的进入和离开的阱上使用的管道注射单元（21）的可盘绕的管（27）。 该装置包括：油管或套管切割臂（30），其通过压力流体操作的活塞（64，70）沿径向伸出和缩回相对于圆筒状支承体。 该装置是由包括一个支撑可互换切削和研磨臂（30）的多个端至端连接的单元和单元具有径向可伸缩稳定臂（38），其接合所述管的内壁（12）的 或壳体（10）来集中和操作期间稳定所述装置。 刀具和铣削臂（30）被修改为通过在向上或流出井的方向移动所述设备铣削远离管（12）的截面。 切割元件（34）是已知可用于运动的切线方向切掉在所述管道（12）的端面支撑在臂（30）最好是圆柱形的硬金属部件。
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公开(公告)号：EP0760049B1
公开(公告)日：1997-08-27
申请号：EP95917416.0
申请日：1995-05-02
摘要： A whipstock and method of using same wherein first and second opposing ends of the whipstock (30) are joined by opposing back (32) and guide (33) surfaces and the second or upper end of the whipstock is composed of at least two surfaces (35, 36), the first surface (35) being angled so as to direct a well tool impinging thereon toward the guide surface and the second surface (36) being angled so as to provide support for the whipstock when placed in a wellbore (1) at an angle to the long axis (4) of the wellbore.
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公开(公告)号：EP0727009A1
公开(公告)日：1996-08-21
申请号：EP94931405.0
申请日：1994-10-19
发明人： CHAN, Albert, F.
摘要： Oil and water based drilling muds, together with other wellbore contaminants such as pipe thread sealants and lubricants are displaced from the well (10) and the wellbore surfaces are cleaned by a system of four serially pumped fluid pills. The first stage fluid pill is a weighted spacer having an alkyl polyglycoside surfactant, a dispersant, a weighting agent and a viscosifier. The second stage pill is a drive fluid formed by water and a viscous polymer gel such as clarified xanthan gum having a viscosity/shear rate characteristic which minimizes mixing of the drive fluid pill with the displacement fluid pill. A buffer fluid pill comprising completion brine is interposed between the drive fluid pill and a fourth stage comprising a wash fluid pill using an organic solvent or a caustic alkyl polyglycoside as a final cleaning stage. The densities of the pills are controlled to minimize mixing and fingering.
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公开(公告)号：EP0525257B1
公开(公告)日：1996-01-24
申请号：EP91306894.6
申请日：1991-07-29
CPC分类号： E21B43/04 , E21B17/22 , E21B43/082
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公开(公告)号：EP0670008A1
公开(公告)日：1995-09-06
申请号：EP94925674.0
申请日：1994-07-13
CPC分类号： E21B23/006 , E21B7/061
摘要： A method and apparatus for setting a whipstock (11) onto a packer (20) in a wellbore (1) wherein the whipstock (11) is laterally and rotatably movable after it is fixed to the packer (11), whereby the whipstock can be moved laterally while rotating so that opposite ends (40, 24) of the whipstock (11) can be made to contact opposing inner walls of the wellbore (1).
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公开(公告)号：EP0649352A1
公开(公告)日：1995-04-26
申请号：EP93916921.0
申请日：1993-07-01
发明人： PERKINS, Thomas, K.
CPC分类号： E21B43/267 , B09B1/008 , E21B41/0057
摘要： Slurried solid waste materials are injected into subterranean earth formations in a zone of interest (102) which has a relatively low in situ compressive stress (96) bounded by zones of higher in situ compressive stress (98, 100) and wherein the zone of interest has alternate layers of material of relatively high and low permeability to fluid flow, respectively. The solid waste slurry is conducted through an injection well (92) penetrating the zone of interest to form a conventional two-winged hydraulic fracture (132, 134). The fracture is extended by reducing the tendency to form filtercake in the fracture adjacent to the layers of material of relatively low permeability (142, 144) while depositing particle filtercake adjacent the earth layers of high permeability (146, 148, 150) so as to provide clear fluid flowpaths through the fracture while allowing the filtercake layers disposed in the fracture to assist in propping the fracture open.
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10.发明授权Transient electromagnetic method for detecting irregularities on conductive containers having variations in jacket thickness 失效对导电性的容器，其外壳检测不规则性的电磁脉冲方法具有非恒定的厚度。
公开(公告)号：EP0382981B1
公开(公告)日：1994-06-22
申请号：EP89313473.4
申请日：1989-12-21
发明人： Lara, Pedro F.
IPC分类号： G01N27/90
CPC分类号： G01B7/06
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