专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO2017203248A1 COMBINED WELL PLUG/CHEMICAL HEATER ASSEMBLIES FOR USE IN DOWN-HOLE OPERATIONS AND ASSOCIATED HEATER CARTRIDGES 审中-公开
标题翻译：用于井下作业和相关加热器筒的组合井式插头/化学加热器组件
公开(公告)号：WO2017203248A1
公开(公告)日：2017-11-30
申请号：PCT/GB2017/051458
申请日：2017-05-24
申请人： BISN TEC LTD
发明人： CARRAGHER, Paul , UNDERWOOD, Lance
IPC分类号： E21B33/13 , E21B33/134 , E21B36/00
摘要： The present invention provides a cartridge (1) for a chemical heater used in down-hole operations. The cartridge (1) comprises a quantity of a chemical reaction heat source (2) wrapped in a temporary coating (3) that is capable of maintaining the shape of the cartridge (1) prior to use but which is consumed during the burn of the heater. The present invention also provides a eutectic/bismuth based alloy well plugging/sealing tool (5). The tool (5) having a tubular heater body (6) with an internal cavity (8) capable of receiving a chemical heat source and a quantity of eutectic/bismuth based alloy (7) provided in thermal communication with the heater body (6) around an outer surface of the heater body (6). The tool has a sleeve (10) provided around an outer surface of the alloy (7), which insulates and/or mechanically protects the alloy (7) down-hole. In this way the sleeve (10) enables the diameter of tool (5) to be reduced whilst maintaining its functionality. In further aspect, the present invention also discloses the provision of a refractory lining (20) on the inner walls of the tubular heater body of chemical heaters, such as the heater (6) used in the eutectic/bismuth based alloy well plugging/sealing tool (5).
摘要翻译：本发明提供了一种用于在井下作业中使用的化学加热器的筒（1）。药筒（1）包括一定量的化学反应热源（2），所述化学反应热源（2）包裹在临时涂层（3）中，所述临时涂层能够在使用之前保持药筒（1）的形状，但在燃烧期间加热器。本发明还提供了一种共晶/铋基合金填塞/密封工具（5）。具有管状加热器本体（6）的工具（5）具有能够接收化学热源的内腔（8）以及与加热器本体（6）热连通设置的一定量的共晶/铋基合金（7）围绕加热器主体（6）的外表面。所述工具具有围绕所述合金（7）的外表面设置的套筒（10），所述套筒（10）绝缘和/或机械地保护所述合金（7）的井下。以这种方式，套筒（10）能够在保持其功能的同时减小工具（5）的直径。在另一方面，本发明还公开了在化学加热器的管状加热器主体的内壁上设置耐火衬里（20），例如用于共晶/铋基合金井堵塞/密封的加热器（6）工具（5）。

2. 发明申请

WO2016024122A2 METHODS AND APPARATUS FOR USE IN OIL AND GAS WELL COMPLETION 审中-公开
标题翻译：用于油气完井的方法和装置
公开(公告)号：WO2016024122A2
公开(公告)日：2016-02-18
申请号：PCT/GB2015/052347
申请日：2015-08-14
申请人： BISN TEC LTD
发明人： CARRAGHER, Paul
IPC分类号： E21B29/10
CPC分类号： E21B33/122 , E21B17/042 , E21B19/00 , E21B29/10 , E21B31/007 , E21B33/13 , E21B33/14 , E21B41/00 , E21B43/10
摘要： A first aspect of the invention provides a gas or oil well tubing having an annular packer mounted thereon, wherein the annular packer is formed from an eutectic alloy. By prefabricating the annular packer on the tubing it can be placed in situ from the outset and thus can be active by melting at any time to form a eutectic seal quickly and easily. An annular packer with by-pass conduits is also provided to enable cement to be pumped past the annular packer when it is in situ. The annular packer is further provided with conduit clearance means to clear cement from within the conduits.
摘要翻译：本发明的第一方面提供一种具有安装在其上的环形封隔器的气井或油井管，其中环形封隔器由共晶合金形成。通过将环形封隔器预制在管道上，可以从一开始就将其置于原位，因此可以随时熔化而有效地快速，容易地形成共晶密封。还提供了具有旁路管道的环形封隔器，以便当水泥在其原位时被泵送通过环形封隔器。环形封隔器还设置有用于从导管内清除水泥的导管间隙装置。

3. 发明申请

WO2023084220A1 GAS-GENERATING CHEMICAL HEATING MIXTURES AND DOWNHOLE TOOL ASSEMBLIES WITH CHEMICAL HEATERS EMPLOYING SUCH 审中-公开
公开(公告)号：WO2023084220A1
公开(公告)日：2023-05-19
申请号：PCT/GB2022/052850
申请日：2022-11-10
申请人： BISN TEC LTD
发明人： LEVCHENKO, Andre , CHANCELLOR, Bobby , NAYLOR, Matthew , CLARK, Billy , TALAPATRA, Didhiti , CARRAGHER, Paul , MOODY, Mike
IPC分类号： E21B29/02 , E21B33/12 , E21B33/134 , E21B36/00 , E21B23/04
摘要： The present invention relates to downhole tool assemblies (50) for use in deploying an alloy plug (61) or seal within a target region of an oil/gas well and clearing/removing well structures from said target regions. The assemblies are provided with a gas-generating chemical heating mixture (58, 59, 60). The heat generated by the chemical heating mixture is employed in heating a downhole target region, while the gas generated is harness to actuate the operation of one or more functional components (54) provided on the assembly to achieve the assembly's particular downhole operation.

4. 发明申请

WO2016024123A1 DOWNHOLE WELL TOOLS AND METHODS OF USING SUCH 审中-公开
标题翻译：井下工具及其使用方法
公开(公告)号：WO2016024123A1
公开(公告)日：2016-02-18
申请号：PCT/GB2015/052348
申请日：2015-08-14
申请人： BISN TEC LTD
发明人： CARRAGHER, Paul
IPC分类号： E21B29/10 , E21B33/138
CPC分类号： E21B33/122 , E21B17/042 , E21B19/00 , E21B29/10 , E21B31/007 , E21B33/13 , E21B33/14 , E21B41/00 , E21B43/10
摘要： A downhole tool for use in a gas or oil well is provided. The tool comprising a length of tubing having at least one annular sealing means mounted on the outer surface thereof. The annular sealing means, which are formed from a eutectic/bismuth based alloy, serve to secure the downhole tool in position within an oil or gas well during so that the tool can carry out its function.
摘要翻译：提供了一种用于气井或油井的井下工具。该工具包括具有安装在其外表面上的至少一个环形密封装置的一段管道。由共晶/铋基合金形成的环形密封装置用于将井下工具固定在油井或气井内的适当位置，使得工具能够执行其功能。

5. 发明申请

WO2015150828A2 WELL CASING/TUBING DISPOSAL 审中-公开
标题翻译：井套/管道处理
公开(公告)号：WO2015150828A2
公开(公告)日：2015-10-08
申请号：PCT/GB2015/051045
申请日：2015-04-02
申请人： BISN TEC LTD
发明人： CARRAGHER, Paul
CPC分类号： E21B33/138 , E21B29/02 , E21B29/10 , E21B33/16 , E21B36/001 , E21B36/003 , E21B36/008 , E21B37/00
摘要： A method of clearing well casing or tubing from a target region of an oil/gas well borehole is provided. The clearance of the oil/gas well bore hole being achieved by employing chemical agents that consume, weaken or melt the well casing/tubing. In some aspects of the method the well casing is cleared to expose the rock formation within which the well borehole is formed so that the rock formation can be accessed from within the well casing/tubing. In other aspects of the method the removal of inner tubing structures is used to facilitate the unimpaired deployment of repair tools down the well borehole.
摘要翻译：提供了一种从油/井井眼的目标区域清除井套管或管道的方法。通过使用消耗，削弱或熔化井套管的化学试剂来实现油/气井孔的清除。在该方法的一些方面，井壳被清除以暴露形成井眼的岩层，从而可以从井套管内进入岩层。在该方法的其他方面，使用内部管道结构的移除来促进维修工具在井眼下的未受损部署。

6. 发明申请

WO2014096857A3 HEAT SOURCES AND ALLOYS FOR USE IN DOWN-HOLE APPLICATIONS 审中-公开
公开(公告)号：WO2014096857A3
公开(公告)日：2014-06-26
申请号：PCT/GB2013/053396
申请日：2013-12-20
申请人： BISN TEC LTD
发明人： CARRAGHER, Paul
IPC分类号： E21B36/00 , E21B33/134 , C22C12/00 , E21B33/136 , E21B17/10
摘要： A chemical reaction heat source for use in heaters used in down-hole applications is provided. The heat source has a fuel composition that comprises thermite and a damping agent. The use of the thermite mix enables the heaters of the present invention to generate hotter temperatures down wells. This in turn allows the use of Bismuth/Germanium alloys, which have higher melting points, to enable the production of plugs for the abandonment of deeper wells where subterranean temperatures are higher.

7. 发明申请

WO2023062335A1 RETRIEVABE DOWNHOLE HEATER 审中-公开
公开(公告)号：WO2023062335A1
公开(公告)日：2023-04-20
申请号：PCT/GB2022/052471
申请日：2022-09-29
申请人： BISN TEC LTD
发明人： CARRAGHER, Paul , MOODY, Mike , CHANCELLOR, Bobby , DEARMON, Jake
IPC分类号： E21B33/13 , E21B33/134 , E21B33/138 , E21B36/00 , E21B36/04
摘要： The present invention provides a retrievable downhole heater that can readily be retrieved from a downhole location once it has been used. The heater comprises an elongate tubular body (3) with a heat source (11) housed therein. The tubular body is formed from a material that does not melt during the downhole operation of the heater. The heater also is provided with at least one reduced friction region (13) that has a lower co-efficient of friction than the material from which the tubular body is formed. The reduced friction regions of the heater are configured to retain the lower co-efficient of friction following the downhole operation of the heater.

8. 发明申请

WO2022106849A1 MULTI-TRIP ANNULAR SEAL REPAIR METHOD AND ASSOCIATED EQUIPMENT 审中-公开
公开(公告)号：WO2022106849A1
公开(公告)日：2022-05-27
申请号：PCT/GB2021/053018
申请日：2021-11-22
申请人： BISN TEC LTD
发明人： CARRAGHER, Paul , DEARMAN, Jake , TALAPATRA, Didhiti
IPC分类号： E21B33/13 , E21B29/02
摘要： A multi-trip method of repairing a leaking annular seal located within an annulus that encircles an oil/gas wellbore tubular body, examples of such seals including annular packers or cement seals. The method comprises providing deflector within a wellbore tubular body adjacent to one or more openings in the wall of the tubular body. Alloy beads are then deployed downhole via the tubular body so that the alloy beads are deflected via said openings into the annulus where they accumulate on top of the annular seal. A heating tool is then operated to heat the alloy within the annulus to form an alloy plug above the annular seal. The present invention also provides various pieces of downhole equipment for use in the repair method of the invention.

9. 发明申请

WO2019097252A2 AN EXPANDABLE EUTECTIC ALLOY BASED DOWNHOLE TOOL AND METHODS OF DEPLOYING SUCH 审中-公开
公开(公告)号：WO2019097252A2
公开(公告)日：2019-05-23
申请号：PCT/GB2018/053333
申请日：2018-11-16
申请人： BISN TEC LTD
发明人： CARRAGHER, Paul
IPC分类号： E21B33/12 , E21B43/10 , E21B36/00
CPC分类号： E21B33/1208 , E21B36/003 , E21B43/103
摘要： The present invention provides a method of deploying a eutectic alloy based tool within an oil/gas well. The method comprising providing a eutectic alloy based downhole tool comprising a tubular body with eutectic alloy located on an outer surface thereof, said tool having an outer diameter with a clearance from the inner diameter of the well. The downhole tool is delivered to a target region within an oil/gas well where the tool is to be deployed. Once the tool is in position within the well a tubular expanding tool is run through the interior of the tubular body so as to increase the outer diameter of the sealing downhole tool and in so doing reduce the clearance between the alloy and the well. Following the expansion of the tubular body a heater is deployed within the tubular body proximal to the alloy and operated to melt the alloy. The alloy is then allowed to cool and resolidfy, whereby the tool is sealed in place within the target region of the well using the alloy.

10. 发明申请

WO2018215786A1 A DOWNHOLE TOOL DEPLOYMENT ASSEMBLY WITH IMPROVED HEATER REMOVABILITY AND METHODS OF EMPLOYING SUCH 审中-公开
公开(公告)号：WO2018215786A1
公开(公告)日：2018-11-29
申请号：PCT/GB2018/051425
申请日：2018-05-24
申请人： BISN TEC LTD
发明人： CARRAGHER, Paul , UNDERWOOD, Lance
IPC分类号： E21B33/13 , E21B36/00 , E21B33/124
摘要： The present invention provides a downhole tool deployment assembly (1) for use in particular in oil/gas wells. The assembly comprises a heater (2) with a tubular heater body having an internal cavity configured to receive a heat source (6). The assembly also has a tubular heat conducting member (3) configured to surround the tubular heater body leaving an annular clearance, wherein the tubular heat conducting member does not extend along the entire length of the tubular heater body. In addition, a collar (4) is mounted adjacent to the region of the assembly where the tubular heat conducting member ends. The collar is configured to prevent access to the annular clearance between the tubular heat conducting member and the tubular heater body. A eutectic/bismuth based alloy (5) covers the collar and at least a portion of the tubular heater body and the tubular heat conducting member such that the alloy holds the heater and the tubular heat conducting member together until the alloy is melted.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式