CN106089112B - An underground cable coiling butt joint device and its installation method and application - Google Patents
An underground cable coiling butt joint device and its installation method and application Download PDFInfo
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- CN106089112B CN106089112B CN201610630490.2A CN201610630490A CN106089112B CN 106089112 B CN106089112 B CN 106089112B CN 201610630490 A CN201610630490 A CN 201610630490A CN 106089112 B CN106089112 B CN 106089112B
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/023—Arrangements for connecting cables or wirelines to downhole devices
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Abstract
Description
技术领域technical field
本发明属于油田注采配套工具技术领域，具体涉及一种井下电缆盘绕对接装置及其安装方法以及应用。The invention belongs to the technical field of supporting tools for oilfield injection and production, and in particular relates to a downhole cable coiling butt joint device, an installation method and application thereof.
背景技术Background technique
在油田开发的过程中，有缆数字式分注、直线电机无杆泵采油等工艺均需在油管外绑电缆施工，存在现场施工作业复杂、施工效率低、作业风险大、带压作业难度大等问题，进而影响工程进度。In the process of oil field development, cable digital injection, linear motor rodless pump oil production and other processes all need to tie cables outside the tubing for construction. There are complex on-site construction operations, low construction efficiency, high operational risks, and difficult under pressure operations. and other issues, thereby affecting the progress of the project.
发明内容Contents of the invention
本发明的目的是解决油管外绑电缆打卡存在的作业复杂、施工效率低、作业风险大、带压作业难度大等问题。The purpose of the present invention is to solve the problems of complex operation, low construction efficiency, high operation risk, and high difficulty of under pressure operation existing in the clamping of the cable tied outside the oil pipe.
为此，本发明提供了一种井下电缆盘绕对接装置，包括套筒、外筒和电缆，套筒底端与外筒顶端连接，电缆呈螺旋状盘绕在外筒内，电缆的一端与套筒内的打捞头连接，另外一端与外筒底端的内置电缆接头连接。For this reason, the present invention provides a kind of downhole cable coiling docking device, comprising sleeve, outer cylinder and cable, the bottom end of the sleeve is connected with the top end of the outer cylinder, the cable is helically coiled in the outer cylinder, and one end of the cable is connected with the inner cylinder of the sleeve. The fishing head is connected, and the other end is connected to the built-in cable connector at the bottom of the outer cylinder.
所述套筒内腔下部向套筒轴心缩径形成一台阶，打捞头位于台阶上方，套筒内腔缩径部的内径小于打捞头的最大直径。The lower part of the inner cavity of the sleeve shrinks toward the axis of the sleeve to form a step, the fishing head is located above the step, and the inner diameter of the reduced diameter part of the inner cavity of the sleeve is smaller than the maximum diameter of the fishing head.
所述外筒的筒壁开设有一腔体，内置电缆接头位于该腔体内。A cavity is opened on the wall of the outer cylinder, and the built-in cable connector is located in the cavity.
所述外筒的最下端是用于连接井下工具的下接头，套筒的最上端是用于连接油管的上接头。The lowermost end of the outer cylinder is a lower joint for connecting downhole tools, and the uppermost end of the sleeve is an upper joint for connecting oil pipes.
所述套筒顶端接口处和外筒底端接口处均设有螺纹。Both the top interface of the sleeve and the bottom interface of the outer cylinder are provided with threads.
所述套筒底端与外筒顶端采用丝扣连接。The bottom end of the sleeve is connected with the top end of the outer cylinder by a screw.
一种井下电缆盘绕对接装置的安装方法，包括如下步骤：A method for installing an underground cable coiling and docking device, comprising the following steps:
步骤一，在地面上将电缆呈螺旋状缠绕在连杆上，将连杆放置于外筒内，然后将连杆抽出，留电缆在外筒内；Step 1. Wrap the cable on the connecting rod in a spiral shape on the ground, place the connecting rod in the outer cylinder, and then pull out the connecting rod, leaving the cable in the outer cylinder;
步骤二，套筒与外筒采用丝扣连接，将打捞头放置于套筒内，电缆上端与打捞头相连，下端与内置电缆接头相连，完成井下电缆盘绕对接装置的安装。Step 2: The sleeve and the outer cylinder are connected with threads, the fishing head is placed in the sleeve, the upper end of the cable is connected with the fishing head, and the lower end is connected with the built-in cable joint, and the installation of the downhole cable coiling docking device is completed.
一种井下电缆盘绕对接装置的应用，将井下电缆盘绕对接装置的套筒的上接头与油管相连，外筒的下接头与井下工具相连，将井下电缆盘绕对接装置下油管完井；An application of a downhole cable coiling docking device, the upper joint of the sleeve of the downhole cable coiling docking device is connected with the oil pipe, the lower joint of the outer cylinder is connected with the downhole tool, and the downhole cable coiling docking device is lowered into the tubing to complete the well;
完井后，在地面利用打捞装置将打捞头捞出地面，并将电缆引至地面，然后将电缆与地面预留装置相连接。After the completion of the well, use the fishing device on the ground to fish the fishing head out of the ground, lead the cable to the ground, and then connect the cable to the ground reserved device.
所述地面预留装置是控制柜。The ground reserved device is a control cabinet.
本发明的有益效果：本发明提供的这种井下电缆盘绕对接装置，是将全井电缆全部放置在外筒内，与井下工具相连，上部留有打捞头，完井后采用打捞装置将打捞头捞出地面方式，将单芯电缆引出地面，与地面预留装置相连接。本发明采用井下电缆盘绕对接装置将电缆引入油管内，解决了传统的油管外绑电缆打卡作业复杂、不能带压作业的问题，也简化了现场施工作业、提高了施工效率，降低了作业风险，且该装置结构简单，操作成本低，工作效率高，适合在石油行业大范围推广应用。Beneficial effects of the present invention: the downhole cable coiling butt joint device provided by the present invention is to place all the well cables in the outer cylinder and connect them with the downhole tools. There is a fishing head on the upper part. In the ground way, lead the single-core cable out of the ground and connect it to the ground reserved device. The invention adopts the downhole cable coiling and docking device to lead the cable into the oil pipe, which solves the problem of complicated punching operation and inability to work under pressure in the traditional oil pipe tied cable, and also simplifies the on-site construction operation, improves the construction efficiency, and reduces the operation risk. Moreover, the device has the advantages of simple structure, low operation cost and high work efficiency, and is suitable for wide application in the petroleum industry.
以下将结合附图对本发明做进一步详细说明。The present invention will be described in further detail below in conjunction with the accompanying drawings.
附图说明Description of drawings
图1是井下电缆盘绕对接装置的结构示意图。Fig. 1 is a structural schematic diagram of an underground cable coiling and docking device.
图2是缠绕着电缆的连杆的示意图。Figure 2 is a schematic illustration of a link with a cable wound around it.
附图标记说明：1、上接头；2、打捞头；3、套筒；4、外筒；5、电缆；6、内置电缆接头；7、下接头；8、连杆；9、台阶。Explanation of reference signs: 1, upper joint; 2, fishing head; 3, sleeve; 4, outer cylinder; 5, cable; 6, built-in cable joint; 7, lower joint; 8, connecting rod; 9, step.
具体实施方式Detailed ways
实施例1：Example 1:
为了解决油管外绑电缆打卡存在的作业复杂、施工效率低、作业风险大、带压作业难度大等问题，本实施例提供了如图1所示的一种井下电缆盘绕对接装置，包括套筒3、外筒4和电缆5，套筒3底端与外筒4顶端连接，电缆5呈螺旋状盘绕在外筒4内，电缆5的一端与套筒3内的打捞头2连接，另外一端与外筒4底端的内置电缆接头6连接。In order to solve the problems of complex operations, low construction efficiency, high operational risks, and difficult under pressure operations existing in the clamping of cables tied outside the tubing, this embodiment provides an underground cable coiled butt joint device as shown in Figure 1, including sleeves 3. The outer cylinder 4 and the cable 5, the bottom end of the sleeve 3 is connected with the top end of the outer cylinder 4, the cable 5 is spirally coiled in the outer cylinder 4, one end of the cable 5 is connected with the fishing head 2 in the sleeve 3, and the other end is connected with the The built-in cable connector 6 at the bottom of the outer cylinder 4 is connected.
本实施例提供的井下电缆盘绕对接装置的安装和应用方法，如下所示：The installation and application method of the downhole cable coiling docking device provided in this embodiment is as follows:
如图2所示，在地面上将电缆5呈螺旋状缠绕在连杆8上，将连杆8放置于外筒4内，然后将连杆8抽出，留电缆5在外筒4内；将打捞头2放置于套筒3内，套筒3与外筒4采用丝扣连接，电缆5上端与打捞头2相连，下端与内置电缆接头6相连；套筒3的上接头1与27/8〞油管相连，外筒4的下接头7与井下工具相连，井下电缆盘绕对接装置下油管完井；完井后，在地面利用打捞装置将打捞头2捞出地面，并将电缆5引至地面，然后将电缆5与地面预留装置相连接，地面预留装置是控制柜，用于给电缆5供电。As shown in Figure 2, on the ground, the cable 5 is spirally wound on the connecting rod 8, the connecting rod 8 is placed in the outer cylinder 4, and then the connecting rod 8 is pulled out, leaving the cable 5 in the outer cylinder 4; The head 2 is placed in the sleeve 3, the sleeve 3 and the outer cylinder 4 are connected by a screw, the upper end of the cable 5 is connected with the fishing head 2, and the lower end is connected with the built-in cable joint 6; the upper joints 1 and 2 of the sleeve 3 are 7/8 "The oil pipe is connected, the lower joint 7 of the outer cylinder 4 is connected with the downhole tool, and the downhole cable is coiled and connected to the lower oil pipe of the docking device to complete the well; after the well is completed, the fishing head 2 is pulled out of the ground with a fishing device on the ground, and the cable 5 is led to the ground , and then connect the cable 5 with the ground reserved device, which is a control cabinet for supplying power to the cable 5 .
本发明提供的这种井下电缆盘绕对接装置，是将全井电缆全部放置在外筒内，与井下工具相连，上部留有打捞头，完井后采用打捞装置将打捞头捞出地面方式，将单芯电缆引出地面，与地面预留装置相连接。本发明采用井下电缆盘绕对接装置将电缆引入油管内，解决了传统的油管外绑电缆打卡作业复杂、不能带压作业的问题，也简化了现场施工作业、提高了施工效率，降低了作业风险，且该装置结构简单，操作成本低，工作效率高，适合在石油行业大范围推广应用。The downhole cable coiling butt joint device provided by the present invention is to place all the well cables in the outer cylinder and connect them with the downhole tools. There is a fishing head on the upper part. The core cable leads out to the ground and connects with the reserved ground device. The invention adopts the downhole cable coiling and docking device to lead the cable into the oil pipe, which solves the problem of complicated punching operation and inability to work under pressure in the traditional oil pipe tied cable, and also simplifies the on-site construction operation, improves the construction efficiency, and reduces the operation risk. Moreover, the device has the advantages of simple structure, low operation cost and high work efficiency, and is suitable for wide application in the petroleum industry.
实施例2：Example 2:
为了解决油管外绑电缆打卡存在的作业复杂、施工效率低、作业风险大、带压作业难度大等问题，本实施例提供了如图1所示的一种井下电缆盘绕对接装置，包括套筒3、外筒4和电缆5，套筒3底端与外筒4顶端连接，电缆5呈螺旋状盘绕在外筒4内，电缆5的一端与套筒3内的打捞头2连接，另外一端与外筒4底端的内置电缆接头6连接。In order to solve the problems of complex operations, low construction efficiency, high operational risks, and difficult under pressure operations existing in the clamping of cables tied outside the tubing, this embodiment provides an underground cable coiled butt joint device as shown in Figure 1, including sleeves 3. The outer cylinder 4 and the cable 5, the bottom end of the sleeve 3 is connected with the top end of the outer cylinder 4, the cable 5 is spirally coiled in the outer cylinder 4, one end of the cable 5 is connected with the fishing head 2 in the sleeve 3, and the other end is connected with the The built-in cable connector 6 at the bottom of the outer cylinder 4 is connected.
为了防止打捞头2下滑进入外筒，所述套筒3内腔下部向套筒3轴心缩径形成一台阶9，打捞头2位于台阶9上方，套筒3内腔缩径部的内径小于打捞头2的最大直径。In order to prevent the fishing head 2 from sliding down into the outer cylinder, the lower part of the inner cavity of the sleeve 3 is reduced to the axis of the sleeve 3 to form a step 9, the fishing head 2 is located above the step 9, and the inner diameter of the inner cavity of the sleeve 3 is smaller than The maximum diameter of the fishing head 2.
实施例3：Example 3:
在实施例1的基础上，如图1所示，所述外筒4的筒壁开设有一腔体，内置电缆接头6位于该腔体内。内置电缆接头6用于连接电缆5，为了确保电缆5的安全性，将内置电缆接头6放置于外筒4的筒壁的腔体内。On the basis of Embodiment 1, as shown in FIG. 1 , the wall of the outer cylinder 4 defines a cavity, and the built-in cable connector 6 is located in the cavity. The built-in cable joint 6 is used to connect the cable 5, and in order to ensure the safety of the cable 5, the built-in cable joint 6 is placed in the cavity of the cylinder wall of the outer cylinder 4.
实施例4：Example 4:
在实施例1的基础上，所述外筒4的最下端是用于连接井下工具的下接头7，，套筒3的最上端是用于连接油管的上接头1。On the basis of Embodiment 1, the lowermost end of the outer cylinder 4 is the lower joint 7 for connecting downhole tools, and the uppermost end of the sleeve 3 is the upper joint 1 for connecting the tubing.
本实施例提供的井下电缆盘绕对接装置的安装和应用方法，如下所示：The installation and application method of the downhole cable coiling docking device provided in this embodiment is as follows:
在地面上将电缆5呈螺旋状缠绕在连杆8上，将连杆8放置于外筒4内，然后将连杆8抽出，留电缆5在外筒4内；将打捞头2放置于套筒3内，套筒3与外筒4采用丝扣连接，电缆5上端与打捞头2相连，下端与内置电缆接头6相连；套筒3的上接头1与27/8〞油管相连，外筒4的下接头7与井下工具相连，井下电缆盘绕对接装置下油管完井；完井后，在地面利用打捞装置将打捞头2捞出地面，并将电缆5引至地面，然后将电缆5与地面预留装置相连接。Wind the cable 5 on the connecting rod 8 in a spiral shape on the ground, place the connecting rod 8 in the outer cylinder 4, then pull out the connecting rod 8, and leave the cable 5 in the outer cylinder 4; place the fishing head 2 in the sleeve 3, the sleeve 3 and the outer cylinder 4 are connected by threads, the upper end of the cable 5 is connected with the fishing head 2, and the lower end is connected with the built-in cable joint 6; the upper joint 1 of the sleeve 3 is connected with the 2 7/8 "oil pipe, and the outer cylinder The lower joint 7 of 4 is connected with the downhole tool, and the downhole cable is coiled and connected with the tubing under the docking device to complete the well; Ground preparations are connected.
实施例5：Example 5:
在实施例1的基础上，所述套筒3的最上端内壁上、外筒4的最下端内壁上均设有螺纹。套筒3与27/8〞油管螺纹相连，外筒4与井下工具螺纹相连。所述套筒3底端与外筒4顶端采用丝扣连接。On the basis of Embodiment 1, threads are provided on the uppermost inner wall of the sleeve 3 and the lowermost inner wall of the outer cylinder 4 . The sleeve 3 is threadedly connected with the 2 7/8 " tubing, and the outer cylinder 4 is threadedly connected with the downhole tool. The bottom end of the sleeve 3 is connected with the top end of the outer cylinder 4 with threads.
实施例6：Embodiment 6:
如图1和图2所示，本实施例提供了一种井下电缆盘绕对接装置的安装方法，包括如下步骤：As shown in Figures 1 and 2, this embodiment provides an installation method for an underground cable coiling and docking device, including the following steps:
步骤一，在地面上将电缆5呈螺旋状缠绕在连杆8上，将连杆8放置于外筒4内，然后将连杆8抽出，留电缆5在外筒4内；Step 1, on the ground, the cable 5 is spirally wound on the connecting rod 8, the connecting rod 8 is placed in the outer cylinder 4, and then the connecting rod 8 is pulled out, leaving the cable 5 in the outer cylinder 4;
步骤二，套筒3与外筒4采用丝扣连接，将打捞头2放置于套筒3内，电缆5上端与打捞头2相连，下端与内置电缆接头6相连，完成井下电缆盘绕对接装置的安装。Step 2: The sleeve 3 and the outer cylinder 4 are connected with threads, the fishing head 2 is placed in the sleeve 3, the upper end of the cable 5 is connected with the fishing head 2, and the lower end is connected with the built-in cable joint 6, and the downhole cable coiling and docking device is completed. Install.
井下电缆盘绕对接装置的安装原理简单，安装的步骤简单方便。The installation principle of the downhole cable coiling butt joint device is simple, and the installation steps are simple and convenient.
实施例7：Embodiment 7:
一种井下电缆盘绕对接装置的应用，将井下电缆盘绕对接装置的套筒3的上接头1与油管相连，外筒4的下接头7与井下工具相连，将井下电缆盘绕对接装置下油管完井；An application of a downhole cable coiling docking device, the upper joint 1 of the sleeve 3 of the downhole cable coiling docking device is connected to the oil pipe, the lower joint 7 of the outer cylinder 4 is connected to the downhole tool, and the downhole cable coiling docking device is connected to the oil pipe to complete the well ;
完井后，在地面利用打捞装置将打捞头2捞出地面，并将电缆5引至地面，然后将电缆5与地面预留装置相连接。After the completion of the well, the fishing head 2 is fished out of the ground with a fishing device on the ground, and the cable 5 is led to the ground, and then the cable 5 is connected with the ground reserved device.
由于打捞装置是现有技术，其具体的结构不作为本发明的保护点，在此不再作详细的说明。地面预留装置的作用是给电缆5供电，井下电缆盘绕对接装置的盘绕是指将电缆5呈螺旋状盘绕在外筒4内，对接是指套筒3的上接头1与油管相连，外筒4的下接头7与井下工具相连。Since the fishing device is a prior art, its specific structure is not used as the protection point of the present invention, and will not be described in detail here. The function of the reserved device on the ground is to supply power to the cable 5. The coiling of the downhole cable coiling and docking device means that the cable 5 is spirally coiled in the outer cylinder 4, and the docking means that the upper joint 1 of the sleeve 3 is connected with the oil pipe, and the outer cylinder 4 The lower joint 7 is connected with the downhole tool.
实施例8：Embodiment 8:
在实施例7的基础上，所述地面预留装置是控制柜。控制柜用于给电缆5供电。On the basis of Embodiment 7, the ground reserved device is a control cabinet. The control cabinet is used to power the cable 5 .
本发明提供的这种井下电缆盘绕对接装置，是将全井电缆全部放置在外筒内，与井下工具相连，上部留有打捞头，完井后采用打捞装置将打捞头捞出地面方式，将单芯电缆引出地面，与地面预留装置相连接。本发明采用井下电缆盘绕对接装置将电缆引入油管内，解决了传统的油管外绑电缆打卡作业复杂、不能带压作业的问题，也简化了现场施工作业、提高了施工效率，降低了作业风险，且该装置结构简单，操作成本低，工作效率高，适合在石油行业大范围推广应用。The downhole cable coiling butt joint device provided by the present invention is to place all the well cables in the outer cylinder and connect them with the downhole tools. There is a fishing head on the upper part. The core cable leads out to the ground and connects with the reserved ground device. The invention adopts the downhole cable coiling and docking device to lead the cable into the oil pipe, which solves the problem of complicated punching operation and inability to work under pressure in the traditional oil pipe tied cable, and also simplifies the on-site construction operation, improves the construction efficiency, and reduces the operation risk. Moreover, the device has the advantages of simple structure, low operation cost and high work efficiency, and is suitable for wide application in the petroleum industry.
以上例举仅仅是对本发明的举例说明，并不构成对本发明的保护范围的限制，凡是与本发明相同或相似的设计均属于本发明的保护范围之内。本实施例没有详细叙述的部件和结构属本行业的公知部件和常用结构或常用手段，这里不一一叙述。The above examples are only illustrations of the present invention, and do not constitute a limitation to the protection scope of the present invention. All designs that are the same as or similar to the present invention fall within the protection scope of the present invention. The components and structures not described in detail in this embodiment are known components and common structures or common means in this industry, and are not described here one by one.
Claims (8)
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610630490.2A CN106089112B (en) | 2016-08-04 | 2016-08-04 | An underground cable coiling butt joint device and its installation method and application |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610630490.2A CN106089112B (en) | 2016-08-04 | 2016-08-04 | An underground cable coiling butt joint device and its installation method and application |
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| CN106089112B true CN106089112B (en) | 2018-03-09 |
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| CN105089629B (en) * | 2014-05-14 | 2018-05-04 | 中国石油天然气股份有限公司 | Horizontal Well Rod Transport Logging Method |
| CN204126631U (en) * | 2014-10-11 | 2015-01-28 | 中国石油天然气股份有限公司 | Measurement and adjustment linkage safety cable head |
| CN204858187U (en) * | 2015-05-06 | 2015-12-09 | 中国石油天然气股份有限公司 | A horizontal well logging cable docking device |
| CN205936426U (en) * | 2016-08-04 | 2017-02-08 | 中国石油天然气股份有限公司 | An underground cable coiling butt joint device |
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