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公开(公告)号：US11293578B2
公开(公告)日：2022-04-05
申请号：US16603921
申请日：2018-04-25
IPC分类号： F16L55/162 , F16L55/10 , F16L55/16 , F16L55/164
摘要： A method of plugging at least one undesired opening in a fluid conduit can include introducing one or more plugging devices into the conduit, conveying the plugging devices by flow to the opening, and blocking the flow through the opening with the plugging devices. A system for plugging at least one undesired opening in a fluid conduit can include a deployment apparatus configured to introduce one or more plugging devices into the conduit, a sensor that measures a physical parameter indicative of leakage from the conduit, and a controller that activates an actuator of the deployment apparatus in response to receipt from the sensor of an indication of leakage from the conduit.
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公开(公告)号：US11041352B2
公开(公告)日：2021-06-22
申请号：US15159435
申请日：2016-05-19
摘要： A system can include an annular restrictor connected in a tubular string. The annular restrictor restricts flow through an annulus formed between the tubular string and a wellbore. Restriction to the flow through the annulus biases the tubular string into the wellbore, and fluid in the wellbore displaces into the tubular string and/or a formation penetrated by the wellbore. A method can include connecting an annular restrictor in a tubular string, and flowing a fluid through an annulus formed between the tubular string and a wellbore, thereby causing a differential pressure across the annular restrictor, the differential pressure biasing the tubular string into the wellbore. Another method can include connecting an annular restrictor in a tubular string, flowing a fluid through an annulus, thereby biasing the tubular string into a wellbore, and then causing the annular restrictor to no longer restrict flow through the annulus.
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公开(公告)号：US10975643B2
公开(公告)日：2021-04-13
申请号：US16441083
申请日：2019-06-14
摘要： A system can include a disconnect tool connected as part of a tubular string, the disconnect tool including an outer housing, and an inner mandrel in the outer housing, in which an abrasive slurry is directed to flow through the tubular string and from the inner mandrel to an annulus between the inner mandrel and the outer housing, and the abrasive slurry erodes through the outer housing. A method can include installing a tubular string in a well, then deploying a disconnect assembly into the tubular string, and flowing an abrasive slurry through the disconnect assembly, thereby parting the tubular string. A disconnect tool can include a rotational flow structure configured to induce rotational flow, and an inner diameter decrease downstream of the rotational flow structure.
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公开(公告)号：US10900312B2
公开(公告)日：2021-01-26
申请号：US16264758
申请日：2019-02-01
发明人： Gary P. Funkhouser , Brock W. Watson , Andrew M. Ferguson , Jenna N. Robertson , Roger L. Schultz
IPC分类号： E21B43/263 , E21B29/02 , E21B43/26 , E21B17/20 , E21B43/114 , E21B33/138
摘要： A method can include deploying a plugging device into a well, the plugging device including a body, and an outer material enveloping the body and having a greater flexibility than a material of the body, and conveying the plugging device by fluid flow into engagement with the opening, the body preventing the plugging device from extruding through the opening, and the outer material blocking the fluid flow between the body and the opening. In another method, the plugging device can include at least two bodies, and a washer element connected between the bodies, the washer element being generally disk-shaped and comprising a hole, a line extending through the hole and connected to the bodies on respective opposite sides of the washer element, the washer element preventing the plugging device from being conveyed through the opening, and the washer element blocking the fluid flow through the opening.
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公开(公告)号：US10753174B2
公开(公告)日：2020-08-25
申请号：US15745608
申请日：2016-04-26
摘要： A method can include varying a spacing between plugging devices by controlling a ratio of flow rates through intersecting pipes. A deployment apparatus can include an actuator and a release structure that releases the plugging devices into a conduit connected to a tubular string in the well. Another method can include operating an actuator, thereby displacing a release structure, and the release structure releasing the plugging devices into the well in response to operating the actuator. Another deployment apparatus can include intersecting pipes and a valve that selectively permits and prevents displacement of the plugging devices through one of the pipes.
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公开(公告)号：US10364634B1
公开(公告)日：2019-07-30
申请号：US15253402
申请日：2016-08-31
发明人： Brock W. Watson , Roger L. Schultz
IPC分类号： E21B17/20 , E21B31/113
摘要： A hydraulic jar for delivering impacts downhole. The jarring mechanism includes a cup-type piston that moves through a seal bore. The cup is deformable in response to fluid pressure so that it expands each time it moves through the seal bore to compensate for wear on the lip. Since only minimum interference is required between the piston and seal bore, less material may be used. This reduces the force required to reset the tool, which is particularly advantageous in horizontal wells. The seal bore may be slightly wider at the exit; the cup expands to this exit diameter, ensuring an interference fit as the cup travels back through the smaller diameter entry section. The entry end of the seal bore may include longitudinal grooves. This prevents the piston cup from rupturing by preventing a fluid seal around the lip until the most of cup is inside the seal bore.
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公开(公告)号：US10180048B1
公开(公告)日：2019-01-15
申请号：US14919432
申请日：2015-10-21
发明人： Brock W. Watson , Roger L. Schultz
IPC分类号： E21B43/114 , E21B29/00 , E21B17/10
摘要： Tools and methods for abrasively cutting downhole pipes and casing. The tools and methods are ideally suited for situations where the pipe to be cut or perforated is positioned partly or wholly inside another pipe and damage to the outer pipe must be avoided. The jet nozzles are positioned at a non-normal angle to the target surface to reduce the jets' effective cutting distance. While pumping the abrasive fluid, the jets are supported at a selected radial distance from the target surface so that within a predetermined operating time the jets will cut or perforate the inner pipe but leave the outer pipe substantially intact. The tool may be rotated with a motor to perform cutoff operations or held in a fixed position for perforating.
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公开(公告)号：US10024136B2
公开(公告)日：2018-07-17
申请号：US15059096
申请日：2016-03-02
IPC分类号： E21B33/13 , E21B33/14 , C09K8/467 , C09K8/42 , E21B27/02 , E21B43/14 , E21B43/26 , E21B34/10 , E21B34/00
摘要： A well system can include a well tool with a retarder chemical. The retarder chemical is released from the well tool into an annulus and retards setting of cement therein. A method of retarding setting of cement at a location in an annulus can include releasing a retarder chemical from a well tool connected in a casing string, after the cement is placed in the annulus. A well tool can include a valve that controls fluid communication via a port between an exterior of the tool and a flow passage extending through the tool, an annular recess, and a dispersible annular exterior component received in the recess. Another well tool can include a valve that controls fluid communication between an exterior of the tool and a flow passage extending through the well tool, an internal chamber, and a retarder chemical in the chamber.
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公开(公告)号：US09309746B1
公开(公告)日：2016-04-12
申请号：US14705688
申请日：2015-05-06
摘要： A well system can include a well tool with a retarder chemical. The retarder chemical is released from the well tool into an annulus and retards setting of cement therein. A method of retarding setting of cement at a location in an annulus can include releasing a retarder chemical from a well tool connected in a casing string, after the cement is placed in the annulus. A well tool can include a valve that controls fluid communication via a port between an exterior of the tool and a flow passage extending through the tool, an annular recess, and a dispersible annular exterior component received in the recess. Another well tool can include a valve that controls fluid communication between an exterior of the tool and a flow passage extending through the well tool, an internal chamber, and a retarder chemical in the chamber.
摘要翻译： 井系统可以包括具有缓凝剂化学品的井具。 缓凝剂化学品从井具中释放到环形空间中，并延缓其中的水泥的凝固。 在环形空间中的一个位置处阻止水泥凝固的方法可以包括在将水泥放置在环形空间中之后，从连接在套管柱中的井具中释放缓凝剂化学物质。 良好的工具可以包括阀，其通过工具的外部和延伸穿过工具的流动通道之间的端口控制流体连通，环形凹部和容纳在凹部中的可分散的环形外部部件。 另一个良好的工具可以包括控制工具的外部和延伸穿过井工具的流动通道，室内的缓冲器化学物质之间的流体连通的阀。
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公开(公告)号：US09228422B2
公开(公告)日：2016-01-05
申请号：US13749434
申请日：2013-01-24
发明人： Brock W. Watson , Roger L. Schultz
IPC分类号： E21B43/114 , E21B29/00
CPC分类号： E21B43/114 , E21B29/002
摘要： Tools and methods for abrasively cutting downhole pipes and casing. The tools and methods are ideally suited for situations where the pipe to be cut or perforated is positioned partly or wholly inside another pipe and damage to the outer pipe must be avoided. The jet nozzles are positioned at a non-normal angle to the target surface to reduce the jets' effective cutting distance. While pumping the abrasive fluid, the jets are supported at a selected radial distance from the target surface so that within a predetermined operating time the jets will cut or perforate the inner pipe but leave the outer pipe substantially intact. The tool may be rotated with a motor to perform cutoff operations or held in a fixed position for perforating.
摘要翻译： 用于磨蚀井下管道和套管的工具和方法。 这些工具和方法非常适用于要切割或穿孔的管道部分或全部位于另一个管道内的情况，并且必须避免损坏外部管道。 喷射喷嘴与目标表面处于非正交角度，以减少射流的有效切割距离。 在泵送磨料流体时，射流以目标表面所选择的径向距离被支撑，使得在预定的操作时间内，射流将切割或穿孔内管，但是离开外管基本完整。 该工具可以用马达旋转以执行切断操作或保持在用于穿孔的固定位置。
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