CN210370572U - Workover-free wellhead cable sealing device - Google Patents
Workover-free wellhead cable sealing device Download PDFInfo
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- CN210370572U CN210370572U CN201920981079.9U CN201920981079U CN210370572U CN 210370572 U CN210370572 U CN 210370572U CN 201920981079 U CN201920981079 U CN 201920981079U CN 210370572 U CN210370572 U CN 210370572U
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Abstract
The utility model discloses an exempt from well workover well head cable seal device, including the cable seal ware, install the cable in the cable seal ware, go up the cable and have cable down through a plurality of grafting unit electric connection, lower cable is located first barrel, and first barrel is through quick dismounting device and cable seal ware fixed connection, and the lower extreme of first barrel is connected with the second barrel through sealed axial adjusting device. The utility model discloses utilize the axial adjusting device that can seal to adjust the required space of cable junction, change the trouble part, change the required space of axial adjusting device regulation cable junction that the reuse can seal after accomplishing, accomplish cable junction, accomplish maintenance work, use this workover-free well head cable sealing device, the maintenance time consuming is short, and the expense is low.
Description
Technical Field
The utility model relates to a sealing device, concretely relates to well head cable sealing device exempts from to repair is applied to the cable and follows the sealed of wearing out of well head, especially submersible pump is aboveground, belongs to well head cable seal technical field.
Background
The electric submersible pump is a multi-stage centrifugal pump working underground, and is put into a well together with an oil pipe, a ground power supply transmits electric energy to the underground electric submersible pump through a transformer, a control screen and a power cable, so that the electric submersible pump is driven by the underground electric submersible pump to rotate, the electric energy is converted into mechanical energy, and well fluid in the oil well is lifted to the ground.
The cable penetrates out of the wellhead of the oil well and needs to be sealed due to the pressure of the oil well, the cable in the cable sealer is integrated with the underground cable once being connected and cannot move any more, and if the cable sealer needs to be moved, the wellhead is detached, the pipe column is lifted, the well is stopped and is put into operation, the cost is high, and the production is delayed.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome prior art's the aforesaid not enough, provide a well workover free wellhead cable sealing device convenient to maintenance.
In order to solve the above problem, the utility model adopts the following technical scheme: the utility model provides a well head cable seal device exempts from to repair, includes the cable seal ware, and fixed mounting has the cable in the cable seal ware, and the one end of going up the cable has cable down through a plurality of grafting unit electric connection, and the cable is located first barrel down, and first barrel is through quick dismounting device and cable seal ware fixed connection, and the lower extreme of first barrel is connected with the second barrel through sealed axial adjusting device.
The following is the utility model discloses to the further optimization of above-mentioned scheme: the plugging unit comprises a cable plugging male plug and a cable plugging female plug which are matched for use, and a groove convenient for the cable plugging male plug to be plugged is formed in the cable plugging female plug.
Further optimization: the quick dismounting device comprises a first protrusion with a trapezoidal longitudinal section, and the first protrusion is arranged on the cable sealer and the first cylinder.
Further optimization: be provided with the sealing washer between cable seal ware and the first barrel, set up the groove that holds the sealing washer on cable seal ware and the first barrel respectively.
Further optimization: the cable sealer and the first barrel are coaxially assembled with a chuck, and a groove for accommodating the first bulge is formed in the chuck.
Further optimization: and the two chucks are provided with screw rods in a penetrating way, and two ends of each screw rod are packaged by nuts.
Further optimization: the sealing axial adjusting device comprises a second cylinder body sleeved outside the lower cable, a third cylinder body is connected to the second cylinder body, and the third cylinder body is inserted into the first cylinder body.
Further optimization: the first barrel is provided with a second protrusion of an annular structure, the second protrusion is provided with an internal thread, and the outer circumference of the third barrel is provided with an external thread matched with the internal thread.
Further optimization: and a third bulge of an annular structure is connected on the third cylinder body, and the third bulge and the third cylinder body are coaxially arranged.
Further optimization: the third protrusion is sleeved with a plurality of sealing rings, and a groove for accommodating each sealing ring is formed in the third protrusion.
When the device is used, the fixed end is connected with the large sleeve four-way, the large sleeve four-way is hermetically connected with an electric submersible pump, a lower cable penetrates out of a wellhead, a cable plugging female plug at the head of the lower cable is butted with a cable plugging male plug at the lower end of a cable sealer, and the first cylinder and the cable sealer are connected and fixed through a quick disconnecting device;
when the wellhead cable sealer device breaks down and needs maintenance, the quick dismounting device is dismounted, the movable end of the first cylinder body is rotated and downwards adjusted to give out a maintenance space, a maintenance fault point is disconnected with the connection of the cable plugging male plug and the cable plugging female plug, and the cable sealer is replaced or maintained;
after the maintenance is finished, the cable plugging male plug and the cable plugging female plug are connected, an insulation sealing strip is wound on the outer surface of the plugging unit, insulation treatment is carried out, the movable end is rotated and adjusted upwards after the maintenance is finished, the first axial barrel is in butt joint with the cable sealer, the first axial barrel is clamped by the quick dismounting device, and the maintenance and connection work is finished.
The utility model discloses utilize the axial adjusting device that can seal to adjust the required space of cable junction, change the trouble part, change the required space of axial adjusting device regulation cable junction that the reuse can seal after accomplishing, accomplish cable junction, accomplish maintenance work, use this workover-free well head cable sealer device, the maintenance time consuming is short, and the expense is low.
The present invention will be further explained with reference to the drawings and examples.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is an enlarged schematic view of the quick release device in an embodiment of the present invention;
fig. 3 is a schematic structural view of a sealing axial adjustment device according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an insertion unit according to an embodiment of the present invention.
In the figure: 1-a cable sealer; 2-cable plugging a male plug; 3-cable plugging female plug; 4-quick disassembling device; 5-sealing the axial adjusting device; 6-movable end; 7-lower cable; 8-fixed end; 9-a first cylinder; 10-a second cylinder; 11-cable on; 12-a screw; 13-a nut; 14-a first projection; 15-a chuck; 16-a sealing ring; 17-a third cylinder; 18-a second projection; 19-third projection.
Detailed Description
The embodiment is as shown in fig. 1-4, a workover-free wellhead cable sealing device, which comprises a cable sealer 1, wherein an upper cable 11 is fixedly installed in the cable sealer 1, one end of the upper cable 11 is electrically connected with a lower cable 7 through a plurality of plugging units, the lower cable 7 is located in a first cylinder 9, the first cylinder 9 is fixedly connected with the cable sealer 1 through a quick dismounting device 4, and the lower end of the first cylinder 9 is connected with a second cylinder 10 through a sealing axial adjusting device 5.
The plugging unit comprises a male cable plugging plug 2 with a convex-shaped longitudinal section, and one end of the male cable plugging plug 2 is fixedly connected with a single wire in the upper cable 11.
The one end of cable plug male plug 2 is seted up the recess that is convenient for the electric wire to insert, and the design is convenient for the electric connection and the fixed of cable plug male plug 2 and electric wire like this.
One end of the cable plugging male plug 2, which is far away from the upper cable 11, is connected with a cable plugging female plug 3, and the longitudinal section of the cable plugging female plug 3 is H-shaped.
The male plug of cable grafting 2 one end male plug's of being convenient for male plug of cable grafting recess is seted up to the one end of female plug of cable grafting 3, and the wire male recess of being convenient for is seted up to the other end, and cable 7 under the lower extreme fixedly connected with of female plug of cable grafting 3 designs like this and is convenient for down cable 7 and cable grafting female plug 3 be connected.
One end of the cable plugging male plug 2 inserted into the cable plugging female plug 3 is designed smoothly, so that the cable plugging female plug 3 is convenient to be matched with the cable plugging male plug 2.
The quick dismounting device 4 comprises two first bulges 14 with trapezoidal longitudinal sections, the first bulges 14 are of annular structures, and the two first bulges 14 are respectively and integrally connected to the outer circumferences of the cable sealer 1 and the first cylinder 9 at positions close to one end.
A sealing ring 16 is arranged between one end face of the cable sealer 1, which is contacted with the first barrel 9, and grooves for accommodating the sealing ring 16 are respectively formed in the cable sealer 1 and the first barrel 9, so that the sealing ring 16 is convenient to fix and the cable sealer 1 and the first barrel 9 are convenient to seal.
The cable sealer 1 and the first cylinder 9 are coaxially provided with annular chucks 15 on the outer circumferences respectively, and the two chucks 15 are symmetrically arranged.
Grooves for accommodating the first protrusions 14 are formed in the inner walls of the chucks 15 respectively, and one end faces, far away from the chucks 15, of the two chucks are conical faces respectively.
The position that is close to the edge between two chucks 15 is annular array to have a plurality of screws 12, and the both ends of every screw 12 run through outside the one end of chuck 15 respectively to by the encapsulation of nut 13, the design is convenient for tighten chuck 15 each other like this, makes cable seal 1 and the one end laminating of first barrel 9 simultaneously.
The sealing axial adjusting device comprises a second cylinder 10 sleeved outside the lower cable 7, and one end, far away from the first cylinder 9, of the second cylinder 10 is set to be a fixed end 8.
One end of the second cylinder 10 is integrally connected with a third cylinder 17, the outer diameter of the third cylinder 17 is smaller than the inner diameter of the first cylinder 9, and the third cylinder 17 can be conveniently inserted into the first cylinder 9 for a certain distance due to the design.
A second bulge 18 with an annular structure is arranged in the first cylinder 9 and close to the lower end, an internal thread is arranged on the inner wall of the second bulge 18, and an external thread matched with the internal thread is arranged on the outer circumference of the third cylinder 17, so that the overall length of the second cylinder 10 and the first cylinder 9 can be adjusted conveniently.
One end of the third cylinder 17, which is far away from the second cylinder 10, is integrally connected with a third protrusion 19 with an annular structure, and the third protrusion 19 and the third cylinder 17 are coaxially arranged.
The outer circumference of the third protrusion 19 is sleeved with a plurality of sealing rings, a groove for accommodating each sealing ring is formed in the third protrusion 19, and the third protrusion 19 and the inner wall of the first cylinder 9 are conveniently sealed.
One end of the first barrel 9 close to the second barrel 10 is set to be a movable end 6, and the first barrel 9, the second barrel 10 and the third barrel 17 are all of cylindrical structures, so that the cable is convenient to penetrate through due to the design.
When the quick connecting device is used, the fixed end 8 is connected with the large four-way joint of the sleeve, the lower cable 7 penetrates out of a well mouth, the cable plugging female plug 3 at the head of the lower cable 7 is in butt joint with the cable plugging male plug 2 at the lower end of the cable sealer 1, and the first cylinder 9 and the cable sealer 1 are connected and fixed through the quick disconnecting device 4;
when the wellhead cable sealer breaks down and needs to be maintained, the quick dismounting device 4 is dismounted, the movable end 6 of the first cylinder 9 is rotated and adjusted downwards to leave a maintenance space, a maintenance fault point is disconnected with the connection of the cable plugging male plug 2 and the cable plugging female plug 3, and the cable sealer 1 is replaced or maintained;
after the maintenance is finished, the cable plugging male plug 2 and the cable plugging female plug 3 are connected, an insulation sealing strip is wound on the outer surface of the plugging unit, insulation treatment is carried out, the movable end 6 is rotated and adjusted upwards after the maintenance is finished, the axial first cylinder 9 is in butt joint with the cable sealer 1, and the quick dismounting device 4 is used for clamping to finish the maintenance and connection work.
The utility model discloses utilize the axial adjusting device that can seal to adjust the required space of cable junction, change the trouble part, change the required space of axial adjusting device regulation cable junction that the reuse can seal after accomplishing, accomplish cable junction, accomplish maintenance work, use this workover-free well head cable sealer device, the maintenance time consuming is short, and the expense is low.
Having shown and described the basic principles and essential features of the invention and advantages thereof, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof, and it is therefore intended that the embodiments be considered as exemplary and not limiting in any way, since the scope of the invention is defined by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein and are therefore not to be embraced therein by any reference numerals in the claims.
Claims (10)
1. The utility model provides a exempt from well workover wellhead cable sealing device, includes cable seal ware (1), and fixed mounting has last cable (11), its characterized in that in cable seal ware (1): go up cable (11) and go up cable (7) through a plurality of grafting unit electric connection down, lower cable (7) are located first barrel (9), and first barrel (9) are connected with cable seal ware (1) through quick dismounting device (4), and first barrel (9) are connected with second barrel (10) through sealed axial adjusting device (5).
2. The workover-free wellhead cable sealing device of claim 1, wherein: the plugging unit comprises a cable plugging male plug (2) and a cable plugging female plug (3) which are matched for use, and a groove convenient for the cable plugging male plug (2) to insert is formed in the cable plugging female plug (3).
3. The workover-free wellhead cable sealing device of claim 2, wherein: the quick dismounting device (4) comprises a first protrusion (14) with a trapezoidal longitudinal section, and the first protrusion (14) is arranged on the cable sealer (1) and the first cylinder (9).
4. A workover-free wellhead cable sealing device according to claim 3, wherein: be provided with sealing washer (16) between cable seal ware (1) and first barrel (9), set up the groove that holds sealing washer (16) on cable seal ware (1) and first barrel (9) respectively.
5. The workover-free wellhead cable sealing device of claim 4, wherein: the cable sealer (1) and the first cylinder (9) are coaxially provided with a chuck (15), and the chuck (15) is provided with a groove for accommodating the first protrusion (14).
6. The workover-free wellhead cable sealing device of claim 5, wherein: the two chucks (15) are provided with screw rods (12) in a penetrating way, and two ends of each screw rod (12) are packaged by nuts (13).
7. The workover-free wellhead cable sealing device of claim 6, wherein: the sealing axial adjusting device comprises a second cylinder (10) sleeved outside the lower cable (7), a third cylinder (17) is connected to the second cylinder (10), and the third cylinder (17) is inserted into the first cylinder (9).
8. The workover-free wellhead cable sealing device of claim 7, wherein: a second bulge (18) of an annular structure is arranged on the first cylinder (9), an internal thread is arranged on the second bulge (18), and an external thread matched with the internal thread for use is arranged on the third cylinder (17).
9. The workover-free wellhead cable sealing device of claim 8, wherein: and a third bulge (19) of an annular structure is connected to the third cylinder (17), and the third bulge (19) and the third cylinder (17) are coaxially arranged.
10. A service-free wellhead cable sealing device as claimed in claim 9, wherein: a plurality of sealing rings are sleeved on the third protrusion (19), and a groove for accommodating each sealing ring is formed in the third protrusion (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920981079.9U CN210370572U (en) | 2019-06-27 | 2019-06-27 | Workover-free wellhead cable sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920981079.9U CN210370572U (en) | 2019-06-27 | 2019-06-27 | Workover-free wellhead cable sealing device |
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| Publication Number | Publication Date |
|---|---|
| CN210370572U true CN210370572U (en) | 2020-04-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920981079.9U Active CN210370572U (en) | 2019-06-27 | 2019-06-27 | Workover-free wellhead cable sealing device |
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| Country | Link |
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| CN (1) | CN210370572U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113140996A (en) * | 2021-04-30 | 2021-07-20 | 刘蒙蒙 | Cable butt joint device |
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2019
- 2019-06-27 CN CN201920981079.9U patent/CN210370572U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113140996A (en) * | 2021-04-30 | 2021-07-20 | 刘蒙蒙 | Cable butt joint device |
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