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公开(公告)号：EP2761130A2
公开(公告)日：2014-08-06
申请号：EP12772851.7
申请日：2012-09-28
IPC分类号： E21B47/10
CPC分类号： C23F13/16 , C23F13/06 , C23F13/10 , C23F13/18 , C23F13/20 , C23F2213/21 , C23F2213/32 , E21B33/0375
摘要： A cathodic protection system is provided for a subterranean well casing having an enclosed upper section of the well casing being substantially shielded by a cellar from an impressed-current cathodic protection circuit passing through earth media. The impressed-current cathodic protection circuit is provided to protect an unenclosed lower section of the well casing. To protect the enclosed upper section of the well casing, a supplemental cathodic protection circuit is provided. The supplemental cathodic protection circuit is a galvanic anode cathodic protection circuit comprising the enclosed upper section of the well casing and one or more bracelet galvanic anodes being circumferentially mounted to the enclosed upper section. The enclosed upper section of the well casing and the one or more bracelet galvanic anodes are substantially surrounded by a cellar backfill, and the galvanic anode cathodic protection circuit is equally effective throughout a broad range of non-homogeneity within the cellar backfill.
摘要翻译： 为地下井壳提供一个阴极保护系统，其中井套的封闭上部基本上被通过地球介质的外加阴极保护电路的地窖屏蔽。 设置外加电流阴极保护电路以保护井套管未封闭的下部。 为了保护井套的封闭上部，提供了一个补充的阴极保护电路。 补充阴极保护电路是一个电流阳极阴极保护电路，其包括井壳的封闭上部和一个或多个环形安装到封闭上部的手镯电阳极。 井壳的封闭上部和一个或多个手链电阳极基本上被地窖回填包围，并且电流阳极阴极保护电路在地窖回填物内的广泛的非均质范围内同样有效。
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公开(公告)号：EP3551842B1
公开(公告)日：2020-09-30
申请号：EP17822940.7
申请日：2017-12-12
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公开(公告)号：EP3551842A1
公开(公告)日：2019-10-16
申请号：EP17822940.7
申请日：2017-12-12
摘要： Systems and methods for decreasing a size of debris entering an electrical submersible pump assembly in a subterranean well with a debris handling assembly include a handler housing with an inner bore and a housing cutting profile located on an inner surface of the inner bore. A cutting blade is secured to a rotating shaft within the inner bore of the handler housing, the cutting blade being aligned with a first portion of the housing cutting profile. A mill is secured to the rotating shaft, the mill aligned with a second portion of the housing cutting profile. An annular mill space is defined by an outer surface of the mill and the inner surface of the inner bore, the annular mill space decreasing in a radial dimension in a downstream direction.
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公开(公告)号：EP2761130B1
公开(公告)日：2017-12-27
申请号：EP12772851.7
申请日：2012-09-28
IPC分类号： E21B47/10
CPC分类号： C23F13/16 , C23F13/06 , C23F13/10 , C23F13/18 , C23F13/20 , C23F2213/21 , C23F2213/32 , E21B33/0375
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5.发明公开INTEGRATED PUMP AND COMPRESSOR AND METHOD OF PRODUCING MULTIPHASE WELL FLUID DOWNHOLE AND AT SURFACE 审中-公开集成真空泵及压缩机及其制造方法的多相井处理流体在井且在表面
公开(公告)号：EP3014058A2
公开(公告)日：2016-05-04
申请号：EP14741471.8
申请日：2014-06-24
CPC分类号： E21B43/128 , E21B43/38 , F04B23/04 , F04B47/02 , F04B47/06
摘要： An integrated system is disclosed to handle production of multiphase fluid consisting of oil, gas and water. The production stream is first separated into two streams: a liquid dominated stream (GVF 95% for example). The separation can be done through shrouds, cylindrical cyclonic, gravity, in-line or the like separation techniques. The two streams are then routed separately to pumps which pump dissimilar fluids, such as a liquid pump and a gas compressor, and subsequently recombined. Both pumps are driven by a single motor shaft which includes an internal passageway associated with one of the pumps for reception of the fluid from the other pump, thereby providing better cooling and greater overall efficiency of all systems associated therewith. A method for providing artificial lift or pressure boosting of multiphase fluid is also disclosed.
摘要翻译： 一个集成的系统是游离缺失盘来处理生产多相流体由油，气和水的。 生产流首先被分离成两个流：一个液体占主导地位流（GVF <5％，例如）和气体为主的物流（GVF> 95％，例如）。 分离可通过护罩，圆柱形旋风，重力，在线或类似的分离技术来完成。 两个流然后分别路由到泵哪个泵不同流体，颜色：例如液体泵和气体压缩机，并随后重新组合。 两个泵是由单个马达轴，其包括在与所述泵用于从所述另一个泵的流体的接收的一个相关联的内部通道，从而提供更好的冷却，并用有相关联的所有系统的更大的总体效率驱动。 一种用于提供人工举升或增压多相流体的方法因此游离缺失盘。
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公开(公告)号：EP2839111A2
公开(公告)日：2015-02-25
申请号：EP13720656.1
申请日：2013-04-19
IPC分类号： E21B43/12
CPC分类号： E21B43/128 , E21B23/002 , E21B43/129
摘要： A submersible pump system that is operable to permit selective access into a production zone of a well bore while a submersible pumping device is operating includes a Y-tool, a submersible pumping device, a control valve assembly and a power conduit. The control valve assembly is also operable to selectively permit access between the interior of the submersible pumping system and the exterior of the submersible pumping system. The valve is operable to form a dynamic seal. The power conduit is operable to convey both power and a pre-designated control signal simultaneously. A method for accessing the production zone of the well bore with a well bore tool uses the submersible pump system while the submersible pump system is producing production zone fluid. The submersible pumping device continues to operate without interruption after transmission of the pre-designated pump control signal.
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