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公开(公告)号：US20140110112A1
公开(公告)日：2014-04-24
申请号：US13659641
申请日：2012-10-24
CPC分类号： E21B33/12 , E21B33/1293 , E21B34/14 , E21B43/261
摘要： In order to overcome the need to remove each packer after a plug and perforate operation in order to produce a well it is desirable to utilize an erodible packer that may allow one way flow. An erodible packer may be constructed of a material such as polyglycolic acid as a binder. The same packer may also allow one way flow past the packer, such as flow from the casing below the packer to the casing above the packer. The packer may erode upon the expiration of a predetermined period of time or upon exposure to an activating agent.
摘要翻译： 为了克服在堵塞和穿孔操作之后移除每个封隔器以产生井的需要，期望利用可允许单向流动的可侵蚀封隔器。 可以由诸如聚乙醇酸之类的材料作为粘合剂来构造可侵蚀的封隔器。 同样的封隔器还可以允许单向流动通过封隔器，例如从封隔器下方的壳体流到封隔器上方的壳体。 封隔器可能在预定时间期限或暴露于活化剂时被侵蚀。
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公开(公告)号：US20130112399A1
公开(公告)日：2013-05-09
申请号：US13292965
申请日：2011-11-09
IPC分类号： E21B43/00
CPC分类号： E21B43/08 , E21B41/0078 , E21B43/29
摘要： An erosion resistant nozzle is brazed to the surface of a tubular, such as a shunt tube of a wellscreen apparatus, for use in a wellbore. The nozzle is elongated and defines an aperture for communicating exiting flow from the tubular's port. The lead end of the nozzle disposed downstream of the exiting flow can be lengthened to prevent erosion to the tubular. The lead endwall of the nozzle's aperture can be angled relative to the nozzle's length and can be rounded. The nozzle can be composed of an erosion resistant material or can be composed of a conventional material having an erosion resistant coating or plating thereon. Being elongated with a low height, the nozzle can have a low profile on the tubular, and the aperture's elongating can be increased or decreased to increase or decrease the flow area through the nozzle.
摘要翻译： 耐腐蚀喷嘴钎焊到管状表面，例如井眼设备的分流管，用于井眼。 喷嘴是细长的并且限定了用于使来自管状端口的离开的流体的孔。 设置在出口流动下游的喷嘴的前端可以被延长以防止对管的侵蚀。 喷嘴孔的前端壁可以相对于喷嘴的长度成角度，并且可以是圆形的。 喷嘴可以由耐侵蚀材料构成，也可以由具有抗侵蚀涂层或镀层的常规材料构成。 细长的低高度，喷嘴可以在管状物上具有低轮廓，并且可以增加或减小孔径的伸长率，以增加或减少通过喷嘴的流动面积。
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公开(公告)号：US20120012343A1
公开(公告)日：2012-01-19
申请号：US12835687
申请日：2010-07-13
IPC分类号： E21B33/12
CPC分类号： E21B33/1243 , E21B23/04 , E21B23/06 , E21B33/124 , E21B33/1285 , E21B33/134
摘要： A packer seals a wellbore annulus. The packer has a body defining a bore therethrough and has a swellable element disposed on the body. An expander movably disposed on the body adjacent the swellable element is actuated by fluid pressure communicated through a port in the body's bore. When actuated, the expander fits between the swellable element and the body to expand the swellable element radially outward an initial expansion amount. While downhole, the swellable element swells in the presence of an agent downhole and expands radially outward a subsequent expansion amount to produce a seal with a surrounding surface. With further fluid pressure, the expander can also compress the swellable element to further increase the expansion amount of the swellable element.
摘要翻译： 封隔器密封井筒环。 封隔器具有限定穿过其中的孔的主体，并且具有设置在主体上的可溶胀元件。 可移动地设置在与膨胀元件相邻的主体上的膨胀器由通过本体孔中的端口连通的流体压力致动。 当致动时，膨胀器配合在可膨胀元件和主体之间，以使可膨胀元件径向向外扩张初始膨胀量。 在井下时，可膨胀元件在井下存在的试剂下膨胀并且径向向外膨胀，随后膨胀量产生与周围表面的密封。 随着进一步的流体压力，膨胀器也可以压缩可膨胀元件，以进一步增加膨胀元件的膨胀量。
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公开(公告)号：US5988287A
公开(公告)日：1999-11-23
申请号：US962477
申请日：1997-10-31
IPC分类号： E21B23/04 , E21B23/06 , E21B31/107 , E21B23/02
CPC分类号： E21B23/06 , E21B23/04 , E21B31/107
摘要： A configuration is provided to anchor the tubing string into a polished-bore receptacle while providing the ability to disconnect the tubing string from the polished-bore receptacle in a single trip in the wellbore. The configuration of the anchor provides for metal-to-metal sealing, and the disconnection is accomplished by a penetrating tool which accesses an annular cavity to unsupport locking dogs which facilitate removal of the tubing string from the polished-bore receptacle with applied pressure. If the packer needs to come out for any reason, a retrieving tool is described which, in a single trip, allows the retrieving tool to be advanced thru-tubing into the packer itself to unlock it. The retrieving tool is pulled out of the tubing and a pick-up force is applied to the tubing string to extend the packer to allow for its ultimate removal with the tubing. The retrieving tool preferably employs jarring forces to release the packer.
摘要翻译： 提供了一种构造，用于将油管柱锚定在抛光孔容器中，同时提供在井眼中单次行程中将管柱与抛光孔容器断开的能力。 锚的构造提供金属对金属的密封，并且通过穿透工具来实现断开，所述穿透工具访问环形空腔以不支撑锁定爪，这有助于在施加的压力下将管柱从抛光孔容器中移除。 如果打包机由于任何原因需要出来，则描述检索工具，其在单次行程中允许检索工具通过管道进入封隔器本身以将其解锁。 检索工具从管道中拉出，并且拾取力施加到油管柱以延伸封隔器以允许其用管道最终移除。 检索工具优选地采用振动力来释放封隔器。
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公开(公告)号：US20140262331A1
公开(公告)日：2014-09-18
申请号：US13833488
申请日：2013-03-15
IPC分类号： E21B17/08
CPC分类号： E21B17/08 , E21B23/02 , E21B43/119
摘要： In order to overcome the need to remove each fracturing plug after a plug and perforate operation it is desirable to utilize a profile latch in conjunction with a coupling profile. By having a profile in each coupling or at least in predetermined couplings a tool such as a perforating assembly including a fracturing plug may be precisely placed. A profile in the couplings also provides a means to latch the perforating assembly or other tool securely to the casing without using slips. Such profiles typically provide for securing the tool or perforating assembly in one direction although a particular profile may secure the assembly in place in two directions. By securing the tool or perforating assembly in one direction only the tool may be easily relocated or removed from the casing.
摘要翻译： 为了克服在插塞和穿孔操作之后去除每个压裂塞的需要，期望使用与联接轮廓一起的轮廓闩锁。 通过在每个联接器中具有轮廓或至少在预定的联接中，可以精确地放置诸如包括压裂塞的穿孔组件的工具。 联轴器中的轮廓还提供了一种用于将穿孔组件或其他工具牢固地锁定到壳体而不使用滑块的装置。 这种轮廓通常提供用于将工具或穿孔组件固定在一个方向上，尽管特定的轮廓可以将组件固定在两个方向上的适当位置。 通过在一个方向上固定工具或穿孔组件，只有工具可以容易地从壳体重新定位或移除。
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6.发明授权Packer providing multiple seals and having swellable element isolatable from the wellbore 有权封隔器提供多个密封件并具有可与井筒分离的可膨胀元件公开(公告)号：US08087459B2
公开(公告)日：2012-01-03
申请号：US12415571
申请日：2009-03-31
IPC分类号： E21B33/12
CPC分类号： E21B33/1208 , E21B23/04 , E21B23/06 , E21B33/1216 , E21B33/126 , E21B33/128
摘要： A packer provides multiple seals when deployed downhole. Exposed to an activating agent, a swellable element on the packer's mandrel expands radially outward to form a seal with the borehole wall. Deformable elements, are disposed on the mandrel adjacent the swellable element. These deformable elements deform outward to the surrounding borehole wall to at least partially isolate the downhole annulus and the swellable element. Bias units releasable affixed on the tool adjacent the deformable elements can deform the elements. These bias units can be released either by swelling of the swellable element or by fluid pressure. Once released, the bias units are axially biased toward the deformable elements to deform them. In this way, the packer can form multiple seals with the borehole wall, and the deformable elements can isolate the swellable element from the downhole annulus, which can keep the swellable element from degrading or being overly extruded.
摘要翻译： 封隔器在井下部署时提供多个密封。 封隔器心轴上的可膨胀元件暴露于活化剂时，径向向外膨胀，以形成与钻孔壁的密封。 可变形元件设置在与可膨胀元件相邻的心轴上。 这些可变形元件向外变形到周围的钻孔壁，以至少部分隔离井下环和可膨胀元件。 可拆卸地固定在与可变形元件相邻的工具上的偏置单元可使元件变形。 这些偏压单元可以通过溶胀元件的溶胀或通过流体压力释放。 一旦释放，偏压单元被轴向偏向可变形元件以使它们变形。 以这种方式，封隔器可以与钻孔壁形成多个密封，并且可变形元件可以将可溶胀元件与井下环空隔离开，这可以保持可溶胀元件的降解或过度挤压。
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公开(公告)号：US06241017B1
公开(公告)日：2001-06-05
申请号：US09416732
申请日：1999-10-13
IPC分类号： E21B2301
CPC分类号： E21B33/1293 , E21B23/01
摘要： An improved cage slip system is disclosed. The cage is constructed so that the cones which actuate the slips extend into the cage openings. The radial extension of the slips is limited so as to retain them if they are extended in an unsupported situation. The cones have a maximum outside dimension equal to the outside dimension of the cage so as to increase the rating of the slips by increasing the bearing area of the cones on the slips. The beneficial features of the cage design are retained while a greater degree of radial expansion of the slips is possible allowing minimization of tool inventory for situations where a lighter wall casing requires further slip extension. The release system allows the lower cones to be driven out from under the lower slips, thus facilitating release of the grip of the lower slips from the casing for extraction of the packer. The mechanical release is functional through the mandrel, whether tension or compression is placed on the mandrel. Alternative designs are presented for the capture of the lower cone by the cage.
摘要翻译： 公开了一种改进的保持架滑动系统。 保持架被构造成使致动滑动件的锥体延伸到保持架开口中。 滑块的径向延伸受到限制，以便如果它们在不受支撑的情况下延伸，则保持它们。 锥体具有等于笼的外部尺寸的最大外部尺寸，以便通过增加滑动件上的锥体的承载面积来增加滑移的额定值。 保持架设计的有益特征被保留，同时可以更大程度地进行滑动的径向膨胀，从而允许在更轻的壁套管需要进一步滑动延伸的情况下最小化工具库存。 释放系统允许下锥体从下滑动件下面被驱除，从而便于将下滑动件的把手从壳体释放以提取封隔器。 机械释放通过心轴起作用，无论张力还是压缩被放置在心轴上。 提出了替代设计，用于通过保持架捕获下锥。
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公开(公告)号：US5819854A
公开(公告)日：1998-10-13
申请号：US595884
申请日：1996-02-06
IPC分类号： E21B23/00 , E21B23/04 , E21B33/1295 , E21B34/06
CPC分类号： E21B23/04 , E21B23/00 , E21B33/1295
摘要： A primarily electronically set permanent or retrievable downhole tool having a hydraulic contingency arrangement to activate the downhole tool in the conventional way in the event electronic communication fails.
摘要翻译： 主要电子设置的永久或可检索的井下工具具有液压应急装置，以在电子通信发生故障的情况下以常规方式激活井下工具。
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公开(公告)号：US09145744B2
公开(公告)日：2015-09-29
申请号：US13833488
申请日：2013-03-15
IPC分类号： E21B17/08 , E21B23/02 , E21B43/119
CPC分类号： E21B17/08 , E21B23/02 , E21B43/119
摘要： In order to overcome the need to remove each fracturing plug after a plug and perforate operation it is desirable to utilize a profile latch in conjunction with a coupling profile. By having a profile in each coupling or at least in predetermined couplings a tool such as a perforating assembly including a fracturing plug may be precisely placed. A profile in the couplings also provides a means to latch the perforating assembly or other tool securely to the casing without using slips. Such profiles typically provide for securing the tool or perforating assembly in one direction although a particular profile may secure the assembly in place in two directions. By securing the tool or perforating assembly in one direction only the tool may be easily relocated or removed from the casing.
摘要翻译： 为了克服在插塞和穿孔操作之后去除每个压裂塞的需要，期望使用与联接轮廓一起的轮廓闩锁。 通过在每个联接器中具有轮廓或至少在预定的联接中，可以精确地放置诸如包括压裂塞的穿孔组件的工具。 联轴器中的轮廓还提供了一种用于将穿孔组件或其他工具牢固地锁定到壳体而不使用滑块的装置。 这种轮廓通常提供用于将工具或穿孔组件固定在一个方向上，尽管特定的轮廓可以将组件固定在两个方向上的适当位置。 通过在一个方向上固定工具或穿孔组件，只有工具可以容易地从壳体重新定位或移除。
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公开(公告)号：US5810082A
公开(公告)日：1998-09-22
申请号：US697813
申请日：1996-08-30
IPC分类号： E21B33/1295 , E21B33/128
CPC分类号： E21B33/1295
摘要： A packer is disclosed which uses applied pressure to set the slips and initiate a compressive force on the sealing elements. The compressive force applied to the sealing elements moves components above the sealing elements and allows the available hydrostatic pressure in the wellbore to create an opposing force on the sealing elements to ensure that they properly set. The sealing elements are mounted directly to the packer body, thus eliminating a leakpath from the fluid pressure application port which is located below the sealing elements on the packer body. Various lock rings hold the set of the packer to avoid the creation of boost forces on the sealing elements from applied or induced pressures from above or below the sealing elements. Movement of the body is not required to accomplish setting of this packer. In applications with low hydrostatic pressure, the annulus can be pressurized to assist in obtaining the necessary pack-off pressure. The hydrostatic pressure continues to be available as a pack-off force even when the pressure below the packing element depletes as the reservoir depletes. The packing element, which is mounted directly to the packer body, eliminates leakpaths behind it, while, at the same time, the packing element is set by opposed forces; i.e., hydraulic from below and hydrostatic from above.
摘要翻译： 公开了一种封隔器，其使用施加的压力来设定滑移并且在密封元件上开始压缩力。 施加到密封元件的压缩力使组件在密封元件上方移动，并允许井筒中的可用流体静压力在密封元件上产生相反的力，以确保它们适当地设定。 密封元件直接安装在封隔器主体上，从而消除了位于封隔器主体上的密封元件下方的流体压力施加口的泄漏路径。 各种锁定环保持封隔器的组合，以避免在密封元件上产生来自密封元件上方或下方的施加或诱导压力的增压力。 身体的运动不需要完成这个包装机的设置。 在具有低静水压力的应用中，环形空间可被加压以帮助获得必要的包装压力。 即使当包装元件下面的压力随着储层耗尽而消耗时，流体静力学压力也继续作为包装力获得。 直接安装在封隔器主体上的包装元件消除了其后面的泄漏路径，同时，包装元件由相对的力设定; 即从下方液压并从上方静压。
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