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1. 发明申请

WO2022177587A1 METHODS FOR IDENTIFYING DRILL STRING WASHOUTS DURING WELLBORE DRILLING 审中-公开
公开(公告)号：WO2022177587A1
公开(公告)日：2022-08-25
申请号：PCT/US2021/026098
申请日：2021-04-07
申请人： SAUDI ARABIAN OIL COMPANY , ARAMCO SERVICES COMPANY
发明人： AL-MOUSA, Ahmed A.
IPC分类号： E21B21/08 , E21B47/117
摘要： A method for identifying a drill string washout during wellbore drilling includes operating a drill bit in a wellbore. The drill bit is disposed at a downhole end of a drill string. The method further includes circulating a washout detection composition through the drill string and back to a surface of the wellbore. The washout detection composition includes a carrier fluid and a detecting material that includes strings, wires, fibers, or combinations of these. The method further includes removing the drill string from the wellbore, and determining a location of the drill string washout by inspecting the drill string. The drill string washout is characterized by at least one washout opening in the drill string. The location of the at least one washout opening is identified by at least a portion of the detecting material extending through the at least one washout opening in the drill string.

2. 发明申请

WO2018128549A1 PLUG, SYSTEM AND METHOD FOR TESTING THE INTEGRITY OF A WELL BARRIER 审中-公开
公开(公告)号：WO2018128549A1
公开(公告)日：2018-07-12
申请号：PCT/NO2018/050003
申请日：2018-01-05
申请人： EXEDRA AS
发明人： PEDERSEN, Bernt Reinhardt
IPC分类号： E21B47/117 , E21B47/11 , G01M3/28
摘要： A system (1') for testing the integrity of a well barrier (2), the system (1') comprising: - a well (10) including a wellbore (4) and a upper wellbore termination means (8), such as a wellhead; - a mud circulation system (70) and/or a mud conditioning system (80) comprising means for transporting, cleaning or storing mud outside said wellbore (4); - a barrier (2) provided in the wellbore (4), the barrier having an upstream side (12) below the barrier (2) and a downstream side (14) above the barrier (2); - a tracer (16); - a storage means (18) for storing said tracer (16), the storage means (18) being provided in a lower part of the barrier (2) and/or below the barrier (2) in the well (10); and - a release mechanism for releasing the tracer (16) from the storage means (18), wherein the system (1') further comprises a detector (20) for detecting tracer (16) that has leaked through the barrier (2) and into said mud (5), the detector (20) being arranged above the wellbore (4). There is also described a method for testing the integrity of a well barrier (2) by means of such a system (1')

3. 发明申请

WO2014052400A1 TRIGGERABLE LOST CIRCULATION MATERIAL AND METHOD OF USE 审中-公开
标题翻译：可触发的失效循环材料及其使用方法
公开(公告)号：WO2014052400A1
公开(公告)日：2014-04-03
申请号：PCT/US2013/061594
申请日：2013-09-25
申请人： HALLIBURTON ENERGY SERVICES, INC.
发明人： MURPHY, Robert, J. , MILLER, Matthew, L.
IPC分类号： E21B47/10 , E21B47/117 , E21B21/08
CPC分类号： C09K8/035 , C09K8/508 , C09K8/516
摘要： Methods for preventing or alleviating the loss of drilling fluids and other well treatment fluids into a subterranean formation during drilling or construction of boreholes therein include a drilling fluid including a lost circulation material. The lost circulation material includes a suspension of swelled particles of a pH sensitive polymeric material, the swelled particles capable of reversibly attaching to other swelled particles of the polymeric material. The pH of the aqueous solution is such that each particle of the swelled pH sensitive polymeric material is not attached to other swelled particles, and wherein upon lowering the pH of the suspension, the swelled particles attach to each other.
摘要翻译：在钻孔或钻孔过程中防止或减轻钻井液和其他井下处理流体损失到地下地层中的方法包括钻井流体，其包括漏液循环材料。失去循环材料包括pH敏感聚合物材料的溶胀颗粒的悬浮液，所述溶胀颗粒能够可逆地附着到聚合物材料的其它溶胀颗粒。水溶液的pH使得溶胀的pH敏感聚合物材料的每个颗粒不附着到其它溶胀的颗粒，并且其中当降低悬浮液的pH时，溶胀的颗粒彼此附着。

4. 发明申请

WO2013028515A2 WELLBORE LEAK DETECTION SYSTEMS AND METHODS OF USING THE SAME 审中-公开
标题翻译：井眼泄漏检测系统及其使用方法
公开(公告)号：WO2013028515A2
公开(公告)日：2013-02-28
申请号：PCT/US2012051338
申请日：2012-08-17
申请人： US SEISMIC SYSTEMS INC , GOLDNER ERIC LEE , ANDERSEN JAMES KENGO
发明人： GOLDNER ERIC LEE , ANDERSEN JAMES KENGO
IPC分类号： E21B47/117 , E21B47/12
CPC分类号： E21B47/1025
摘要： A leak detection system for a wellbore. The leak detection system includes: (1) at least one sensor configured to be positioned outside of a casing of the wellbore; (2) an interrogation system for sending signals to, and receiving signals from, the at least one sensor; and (3) an optical lead cable disposed between the interrogation system and the at least one sensor. A method of detecting a fluid leak in a wellbore is also disclosed.
摘要翻译：井眼泄漏检测系统。泄漏检测系统包括：（1）至少一个传感器，其构造成定位在井眼的壳体外部; （2）用于向所述至少一个传感器发送信号并从所述至少一个传感器接收信号的询问系统; 和（3）设置在询问系统和至少一个传感器之间的光引线。还公开了一种检测井眼中的流体泄漏的方法。

5. 发明申请

WO2008147217A2 CONTROL SYSTEM 审中-公开
标题翻译：控制系统
公开(公告)号：WO2008147217A2
公开(公告)日：2008-12-04
申请号：PCT/NO2008000192
申请日：2008-05-30
申请人： FMC KONGSBERG SUBSEA AS , INDERBERG OLAV , JOHANSEN JOHN A
发明人： INDERBERG OLAV , JOHANSEN JOHN A
IPC分类号： E21B47/117 , E21B47/10
CPC分类号： E21B47/1025
摘要： The present invention regards a method for relieving a pressure within a first cavity by moving fluid from a first cavity (40; 6) with a lower pressure, for instance an annulus, to a second cavity (6; 40) with a higher pressure, for instance a flow line, in a subsea facility where the method comprises the steps of allowing fluid within the first cavity (40; 6) to flow through a first line (39; 38) to a transfer accumulator (30), then pressurizing the fluid within the transfer accumulator (30) by a piston arrangement (32) and transferring the fluid from the transfer accumulator (30) into the second cavity (6; 40). The invention also comprises a device for performing the method.
摘要翻译：本发明涉及一种通过将流体从具有较低压力的第一空腔（例如环形空间）移动到具有较高压力的第二空腔（6; 40）的方式来减轻第一空腔内的压力的方法，例如流线，其中该方法包括以下步骤：允许第一腔（40; 6）内的流体流过第一管线（39; 38）到转移蓄能器（30），然后将流体通过活塞装置（32）传送到转移蓄能器（30）内，并将流体从转移蓄能器（30）转移到第二腔（6; 40）中。本发明还包括用于执行该方法的装置。

6. 发明申请

WO2023076415A1 TRIAXIAL LEAK CRITERION WITH QUADRATIC DEPENDENCE ON EFFECTIVE PRESSURE FOR OPTIMIZING THREADED CONNECTIONS IN WELL TUBULARS 审中-公开
公开(公告)号：WO2023076415A1
公开(公告)日：2023-05-04
申请号：PCT/US2022/047921
申请日：2022-10-26
申请人： EWELLBORE, LLC
发明人： GOODMAN, Malcolm, A.
IPC分类号： E21B17/042 , E21B47/117 , G01M3/28
摘要： Example systems, devices, and methods are described for evaluating the relative leak safety of threaded connections in well tubulars. The method includes evaluating leak risk using a quadratic leak criterion (325), which is a function of the effective pressure (Pe) (920) and includes three constants: a first constant called the leak path factor (5), a thread modulus (a), and a makeup leak resistance (P). The method in some implementations includes identifying at least three test cases (700A) with different Ap expected to leak under certain conditions. The method includes fitting a quadratic expression (33OA) to a subset of values associated with the leaking test cases (700A), in which the resulting quadratic expression (33OA) includes values for the three constants. The quadratic leak criterion (325) can be expressed as a leak safety factor (330) for evaluation of particular threaded connections, load cases, and conditions, thereby optimizing the design and selection of threaded connections and also optimizing connection performance during drilling and production operations.

7. 发明申请

WO2023069776A1 SUBTERRANEAN PARAMETER SENSING SYSTEMS AND METHODS 审中-公开
公开(公告)号：WO2023069776A1
公开(公告)日：2023-04-27
申请号：PCT/US2022/047583
申请日：2022-10-24
申请人： X DEVELOPMENT LLC
发明人： SMITH, Kevin Forsythe , GONCHARUK, Artem , ZHAO, Allen Richard , WILFONG, Jonathan Gray
IPC分类号： E21B41/00 , E21B47/117 , E21B47/12
摘要： A carbon dioxide (CO2) sequestration sensor system includes an underground sub-assembly including one or more sensors configured to detect at least one attribute associated with CO2 sequestration below a terranean surface; and an above-ground sub-assembly positionable on the terranean surface proximate the underground sub-assembly and including at least one controller communicably coupled to the one or more sensors.

8. 发明申请

WO2021214452A1 AN IMPROVED CONNECTOR FOR A SUBSEA DRILLING RISER 审中-公开
公开(公告)号：WO2021214452A1
公开(公告)日：2021-10-28
申请号：PCT/GB2021/050949
申请日：2021-04-20
申请人： AQUATERRA ENERGY LIMITED
发明人： WARD, Martin
IPC分类号： E21B17/01 , E21B17/02 , E21B33/038 , E21B33/04 , F16L25/06 , E21B33/08 , E21B17/046 , E21B47/117 , E21B17/08
摘要： The invention concerns a pipe joint formed between a pin section (10) and a box section (20); the pin and box sections each having a tubular pipe section, engaging at respective first ends in end-to-end arrangement and having a seal element partially therebetween, the box section including a collar extending from the first end, the collar being generally cylindrical, axially aligned with the tubular box pipe section and having an inner diameter of the same size as the outer diameter of the pin section, enabling the collar to be placed about the pin section, the pin and the box sections being secured together by means of a plurality of securing means housed in the collar and actuable to exert radial pressure to urge the pin and box into sealing arrangement, the collar (22) of the box section (20) including a test port, comprising a housing atrium, defined by an atrium wall, housing a test plug (60); the housing atrium (61) and the seal element (53) being fluidly linked by a box conduit; the plug comprising a plug body and a plug seal housed between the plug body and the housing atrium wall to seal the housing atrium from atmosphere and having therethrough a plug conduit connectable at a first end to a pressure test apparatus and fluidly linkable at a second end to the box conduit; the plug being moveable between a first position forming a fluid link between the plug conduit and the box conduit, and a second position closing the fluid link.

9. 发明申请

WO2019165030A1 PORTED U-CUP ANNULAR WELLHEAD HANGER SEAL 审中-公开
公开(公告)号：WO2019165030A1
公开(公告)日：2019-08-29
申请号：PCT/US2019/018895
申请日：2019-02-21
申请人： VETCO GRAY, LLC
发明人： INGRAM, Andrew , DUNN, Gregory , MARTINEZ, Alejandro, C.
IPC分类号： E21B33/04 , E21B47/10 , E21B47/117
摘要： A system is disclosed as including an enclosed space within a seal for sealing an area between a hanger and a housing of a wellhead. The enclosed space traverses a first section of the seal, a middle section of the seal, and an opening at a second section of the seal. A port is provided as accessible from the housing. A tool positions the seal within the hanger and the housing so that the port is able to access the enclosed space from the housing to the hanger. A pressure applicator applies fluid into the port at a pressure, which is monitored to determine integrity of the seal. In a monitoring mode, a pressure is monitored at the port. A change in the pressure from an ambient pressure at the port may indicate an on-going issue with the seal. Methods applied to the system are also disclosed.

10. 发明申请

WO2016153460A1 LEAK DETECTION VIA DOPPLER SHIFT DIFFERENCES IN MOVING HYDROPHONES 审中-公开
标题翻译：通过移动水文中的多普勒移位差异来检测泄漏
公开(公告)号：WO2016153460A1
公开(公告)日：2016-09-29
申请号：PCT/US2015/021669
申请日：2015-03-20
申请人： HALLIBURTON ENERGY SERVICES, INC.
发明人： NGUYEN, Nam
IPC分类号： E21B47/10 , E21B47/117 , G01V1/40
CPC分类号： E21B47/101 , G01V1/50 , G01V1/52 , G01V2210/1234 , G01V2210/1299 , G01V2210/1429 , G01V2210/144 , G01V2210/65
摘要： A leak-detecting assembly can include an array of hydrophones. The array can be moved within a hydrocarbon well. A variation in the Doppler shift caused by a stationary acoustic source (such as a leak) while the array moves towards and away from that source can be determined based on information from the array of hydrophones. The assembly can be associated with a passive system that captures acoustic signals directly from the source or leak and estimates a location of the source or leak based on measurement of Doppler shift in each receiver.
摘要翻译：泄漏检测组件可以包括水听器阵列。阵列可以在烃井内移动。可以基于来自水听器阵列的信息来确定阵列朝向和远离该源移动的静止声源（例如泄漏）引起的多普勒频移的变化。该组件可以与从源或直接捕获声信号或泄漏的无源系统相关联，并且基于每个接收机中的多普勒频移测量来估计源或泄漏的位置。

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