CN210317249U - Underground cable-passing conversion positioning sealing device - Google Patents
Underground cable-passing conversion positioning sealing device Download PDFInfo
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- CN210317249U CN210317249U CN201920723370.6U CN201920723370U CN210317249U CN 210317249 U CN210317249 U CN 210317249U CN 201920723370 U CN201920723370 U CN 201920723370U CN 210317249 U CN210317249 U CN 210317249U
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Abstract
The utility model provides a cross cable conversion location sealing device in pit, connect including sealed body, cable channel and adjustment, sealed body adopts the cavity cylindricality structure, and hollow structure forms one and produces the liquid passageway, has seted up liquid passageway on the upper portion lateral wall of sealed body, and liquid passageway is linked together with producing the liquid passageway, and cable channel sets up in the lateral wall of sealed body, and cable channel runs through the lateral wall of sealed body and with produce liquid passageway parallel arrangement, and adjustment connects integrative setting in the bottom of sealed body. The device accurately positions the electric pump, solves the problem of passing through of the underground power cable, and simultaneously prevents the produced liquid of the oil well from falling back in the production process.
Description
Technical Field
The utility model relates to an oil field development apparatus for producing technical field, more specifically say and relate to a cable conversion location sealing device crosses in pit.
Background
The coiled tubing is used as an important tool in oilfield production, is widely applied in the technical directions of sidetrack drilling, testing, well workover, oil extraction, gas production and the like of the oilfield, wherein a sealing device is required to be added above an electric pump for underground ultrasonic wave permanent tool plug removal, small-diameter pipe liquid drainage and gas production, coiled tubing throwing and fishing electric pumps without workover rig platforms and the like, so that a liquid production loop is realized.
The main operation means of the workover rig-free platform is to adopt a workover ship, a drilling ship or a workover rig to move to carry out workover, the workover ship, the drilling ship and the workover rig are used for a workover rig-free platform inspection pump to move, the preparation time of frequent workover rig moving operation is long, the cost is high, the equipment loss is large, the performance of tools such as an external sand control pipe column sealing working barrel, a sleeve pipe, a hanger and the like is reduced or even loses efficacy when the pipe column is lifted, and the problems of oil layer pollution, cold damage, scaling, reservoir pollution and the like caused by external solid particles are often generated in the process of flushing and killing a well.
The pump operation can be efficiently and quickly finished without using a workover rig and an operation ship by utilizing the operation of the coiled tubing throwing and dragging electric pump, the operation process is simple and safe, the steps of detaching a Christmas tree, lifting a production pipe column, lowering the production pipe column, installing the Christmas tree, setting a cable packer and the like are reduced, the performance reduction of a sand prevention pipe column caused by lifting the pipe column is avoided, the pollution and the injury of an oil layer are reduced, and the pump operation procedure is simplified.
When the coiled tubing is used for throwing and fishing the electric pump, a cable-passing conversion positioning sealing device needs to be added underground to prevent the problem of liquid production from falling back in the production process.
SUMMERY OF THE UTILITY MODEL
The utility model overcomes not enough among the prior art provides a cross cable conversion location sealing device in pit, and this device has solved the problem that power cable passes through in the pit, prevents simultaneously can the oil well produce liquid and fall back in process of production.
The purpose of the utility model is realized by the following technical scheme.
A downhole cable-passing conversion positioning sealing device comprises a sealing body, a cable channel and an adjusting joint,
the sealing body is of a hollow cylindrical structure, a liquid production channel is formed in the hollow structure, a liquid outlet channel is formed in the upper side wall of the sealing body along the half circumference of the side wall, the liquid outlet channel is communicated with the liquid production channel, the cable channel is arranged in the side wall of the sealing body, the cable channel penetrates through the side wall of the sealing body and is parallel to the liquid production channel, and the adjusting joint is integrally arranged at the bottom end of the sealing body.
Sealing modules are arranged on the sealing body below the liquid outlet channel and above the adjusting joint and used for being in sealing fit with a working barrel arranged outside the sealing modules; the cable channel does not influence the sealing function of the sealing module, and the cable channel is used for penetrating of the underground power cable.
The liquid outlet channels are of a single-hole structure along the longitudinal direction of the side wall of the sealing body, the number of the liquid outlet channels is 4-6, and the liquid outlet channels are uniformly distributed along the half circumference of the side wall of the sealing body.
The liquid outlet channel is of a longitudinal porous structure along the side wall of the sealing body, the number of longitudinal holes of the liquid outlet channel is 3-4, the number of circumferential holes of the liquid outlet channel is 4-6, and the liquid outlet channel is uniformly distributed along the half circumference of the side wall of the sealing body.
The top end of the sealing body is connected with the coiled tubing downhole tool string through threads.
The adjusting joint is connected with the electric pump short joint through threads and used for ensuring that the underground electric pump is positioned in the center of the pipe column.
The utility model has the advantages that: the device accurately positions the electric pump, solves the problem of passing through of the underground power cable, and simultaneously prevents the produced liquid of the oil well from falling back in the production process.
Drawings
FIG. 1 is a schematic sectional view of the present invention;
fig. 2 is a schematic view of the overall structure of the present invention;
in the figure: the device comprises a liquid outlet channel 1, a sealing body 2, a sealing module 3, a cable channel 4, an alignment connector 5 and a liquid production channel 6.
For a person skilled in the art, other relevant figures can be obtained from the above figures without inventive effort.
Detailed Description
The technical solution of the present invention is further explained by the following specific examples.
Example one
A downhole cable-passing conversion positioning sealing device comprises a sealing body 2, a cable channel 4 and an adjusting joint 5,
the sealing body 2 is of a hollow cylindrical structure, the hollow structure forms a liquid production channel 6, the liquid outlet channel 1 is arranged on the side wall of the upper portion of the sealing body 2, the liquid outlet channel 1 is communicated with the liquid production channel 6, the cable channel 4 is arranged in the side wall of the sealing body 2, the cable channel 4 penetrates through the side wall of the sealing body 2 and is arranged in parallel with the liquid production channel 6, and the adjusting joint 5 is integrally arranged at the bottom end of the sealing body 2.
The liquid outlet channels 1 adopt a longitudinal single-hole structure along the side wall of the sealing body 2, the number of the liquid outlet channels 1 is 4-6, and the liquid outlet channels are uniformly distributed along the half circumference of the side wall of the sealing body 2.
Example two
On the basis of the first embodiment, the sealing body 2 below the liquid outlet pipe 1 and above the adjusting joint 5 is provided with the sealing module 3, the sealing module 3 is used for being in sealing fit with a working barrel arranged outside the sealing module, the cable channel 4 does not influence the sealing function of the sealing module 3, and the cable channel 4 is used for penetrating of a downhole power cable.
The liquid outlet channel 1 adopts a longitudinal porous structure along the side wall of the sealing body 2, the number of longitudinal holes of the liquid outlet channel 1 is 3-4, the number of circumferential holes of the liquid outlet channel 1 is 4-6, and the longitudinal holes are uniformly distributed along the half circumference of the side wall of the sealing body 2.
EXAMPLE III
On the basis of the second embodiment, the top end of the sealing body 2 is connected with the coiled tubing downhole tool string through threads.
The adjusting joint 5 is connected with the electric pump short section through threads, and the adjusting joint 5 is used for ensuring that the underground electric pump is positioned in the center of the pipe column.
According to the offshore oilfield downhole condition, the underground cable-passing conversion positioning sealing device is arranged in a coiled tubing, the top end of the sealing body is connected with a coiled tubing downhole tool string through threads, the bottom end of the sealing body is connected with the electric pump short joint through threads, the produced liquid enters the sealing body through the liquid production channel when the pump is started to produce, the produced liquid flows out of the sealing body through the liquid production channel, the sealing module is sealed with the sealing barrel matched with the outer-layer tubular column, and therefore the produced liquid is prevented from falling back.
Spatially relative terms, such as "upper," "lower," "left," "right," and the like, may be used in the embodiments for ease of description to describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that the spatial terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "lower" can encompass both an upper and a lower orientation. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
Moreover, relational terms such as "first" and "second," and the like, may be used solely to distinguish one element from another element having the same name, without necessarily requiring or implying any actual such relationship or order between such elements.
The present invention has been described in detail, but the above description is only a preferred embodiment of the present invention, and should not be construed as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.
Claims (6)
1. A cable conversion location sealing device crosses in pit which characterized in that: comprises a sealing body, a cable channel and an adjusting joint,
the sealing body is of a hollow cylindrical structure, a liquid production channel is formed in the hollow structure, a liquid outlet channel is formed in the upper side wall of the sealing body along the half circumference of the side wall, the liquid outlet channel is communicated with the liquid production channel, the cable channel is arranged in the side wall of the sealing body, the cable channel penetrates through the side wall of the sealing body and is parallel to the liquid production channel, and the adjusting joint is integrally arranged at the bottom end of the sealing body.
2. The downhole over-the-cable transition positioning and sealing device of claim 1, wherein: and sealing modules are arranged on the sealing body below the liquid outlet channel and above the adjusting joint and are used for being in sealing fit with a working barrel arranged outside the sealing body.
3. The downhole over-the-cable transition positioning and sealing device of claim 2, wherein: the liquid outlet channels are of a single-hole structure along the longitudinal direction of the side wall of the sealing body, the number of the liquid outlet channels is 4-6, and the liquid outlet channels are uniformly distributed along the half circumference of the side wall of the sealing body.
4. The downhole over-the-cable transition positioning and sealing device of claim 2, wherein: the liquid outlet channel is of a longitudinal porous structure along the side wall of the sealing body, the number of longitudinal holes of the liquid outlet channel is 3-4, the number of circumferential holes of the liquid outlet channel is 4-6, and the liquid outlet channel is uniformly distributed along the half circumference of the side wall of the sealing body.
5. The downhole over-the-cable transition positioning and sealing device of claim 2, wherein: the top end of the sealing body is connected with the coiled tubing downhole tool string through threads.
6. The downhole over-the-cable transition positioning and sealing device of claim 2, wherein: the adjusting joint is connected with the electric pump short joint through threads and used for ensuring that the underground electric pump is positioned in the center of the pipe column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920723370.6U CN210317249U (en) | 2019-05-20 | 2019-05-20 | Underground cable-passing conversion positioning sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920723370.6U CN210317249U (en) | 2019-05-20 | 2019-05-20 | Underground cable-passing conversion positioning sealing device |
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| Publication Number | Publication Date |
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| CN210317249U true CN210317249U (en) | 2020-04-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920723370.6U Active CN210317249U (en) | 2019-05-20 | 2019-05-20 | Underground cable-passing conversion positioning sealing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113431518A (en) * | 2021-06-10 | 2021-09-24 | 王文龙 | Step-by-step cable-passing grinding-milling packer |
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2019
- 2019-05-20 CN CN201920723370.6U patent/CN210317249U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113431518A (en) * | 2021-06-10 | 2021-09-24 | 王文龙 | Step-by-step cable-passing grinding-milling packer |
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