CN212317944U - Well-flushing sliding sleeve opening and closing device for oil field oil production well - Google Patents
Well-flushing sliding sleeve opening and closing device for oil field oil production well Download PDFInfo
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- CN212317944U CN212317944U CN202020831252.XU CN202020831252U CN212317944U CN 212317944 U CN212317944 U CN 212317944U CN 202020831252 U CN202020831252 U CN 202020831252U CN 212317944 U CN212317944 U CN 212317944U
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Abstract
The utility model discloses a well-flushing sliding sleeve switch ware is being adopted to oil field oil production well, including top connection, lower clutch, be equipped with coupling mechanism between the lateral wall of top connection and the lateral wall of lower clutch, coupling mechanism's lateral wall runs through and is equipped with a plurality of first liquid holes of crossing, coupling mechanism's inside wall is equipped with sealing mechanism, be equipped with the feed through mechanism between the inside wall of top connection and the inside wall of lower clutch, the lateral wall of feed through mechanism runs through and is equipped with a plurality of second and crosses the liquid hole, coupling mechanism includes and is threaded connection's sleeve pipe with the lateral wall of top connection, the lateral wall of lower clutch, the sheathed tube inside wall is sealed face. The utility model has the advantages of reasonable design, it is easy and simple to handle, not only can realize that the flushing fluid gets into by oil pipe, get back to the flushing technology on ground by the sleeve pipe, have good leakproofness moreover, can avoid taking place the material leakage phenomenon when the oil recovery well normally works.
Description
Technical Field
The utility model relates to an oil recovery instrument technical field especially relates to an oil field oil recovery well forward flushing sliding sleeve switch ware.
Background
The well washing is a process that in the process of well repairing operation, well washing medium is injected by pumping equipment through a shaft or a drill rod and substances (liquid phase, solid phase and gas phase) in the shaft are carried to the ground so as to change the property of the medium in the shaft and meet the operation requirement.
The well washing of the current oil production well of the oil field basically adopts a well washing mode, the well washing mode is that the well washing liquid enters a shaft from a sleeve and returns to the ground through an oil well pump and an oil pipe, the using amount of the well washing liquid is large, the damage to an underground oil layer is large, the cycle length of the oil well recovering the normal oil recovery is long, and a well washing sliding sleeve switch of the oil production well of the oil field is designed for solving the problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving among the prior art backwash well flushing liquid quantity big, the big problem of injury that causes the secret oil reservoir, and the oil field oil recovery well forward flushing sliding sleeve switch ware that proposes, its is easy and simple to handle, not only can realize that the flushing liquid gets into by oil pipe, gets back to the well flushing technology on ground by the sleeve pipe, has good leakproofness moreover, can avoid taking place the material leakage phenomenon when the oil recovery well normally works.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides an oil field oil recovery well is being washed well sliding sleeve switch ware, includes top connection, lower clutch, be equipped with coupling mechanism between the lateral wall of top connection and the lateral wall of lower clutch, coupling mechanism's lateral wall runs through and is equipped with a plurality of first liquid holes of crossing, coupling mechanism's inside wall is equipped with sealing mechanism, be equipped with the feed mechanism between the inside wall of top connection and the inside wall of lower clutch, the lateral wall of feed mechanism runs through and is equipped with a plurality of second and crosses the liquid hole.
Preferably, coupling mechanism includes the sleeve pipe that is threaded connection with the lateral wall of top connection, the lateral wall of lower clutch, sheathed tube inside wall is sealed face, first annular seal groove has been seted up to the lateral wall of top connection, be equipped with a plurality of first sealing washers that offset with the sleeve pipe inboard in the first annular seal groove, the second annular seal groove has been seted up to the lateral wall of lower clutch, be equipped with a plurality of second sealing washers that offset with the sheathed tube inside wall in the second annular seal groove, first liquid hole of crossing runs through and sets up at the sheathed tube lateral wall.
Preferably, the sealing mechanism comprises a sliding sleeve in sealing sliding connection with the inner side wall of the casing, and a plurality of springs are connected between the sliding sleeve and the lower joint.
Preferably, the feed mechanism includes the center tube with the equal fixed connection of the inside wall of upper joint, the inside wall of lower clutch, third annular seal groove has been seted up to the inside wall of upper joint, be equipped with a plurality of third sealing washers that offset with the lateral wall of center tube in the third annular seal groove, fourth annular seal groove has been seted up to the inside wall of lower clutch, be equipped with a plurality of fourth sealing washers that offset with the lateral wall of center tube in the fourth annular seal groove, the liquid hole is crossed to the second runs through and sets up the lateral wall at the center tube.
Preferably, the inner side wall and the outer side wall of the sliding sleeve are both provided with sealing rings.
Preferably, the spring is a belleville spring.
Compared with the prior art, the utility model, its beneficial effect does:
1. through the arrangement of the upper joint, the lower joint, the sleeve, the first liquid passing hole, the sliding sleeve, the spring, the central pipe and the second liquid passing hole, the well washing process that well washing liquid enters from the oil pipe and returns to the ground through the sleeve can be realized.
2. Through the arrangement of the first annular sealing groove, the first sealing ring, the second annular sealing groove, the second sealing ring, the third annular sealing groove, the third sealing ring, the fourth annular sealing groove, the fourth sealing ring, the sliding sleeve and the sealing ring, the sealing device has good sealing performance, and can avoid the phenomenon of material leakage when the oil production well normally works.
To sum up, the utility model has the advantages of reasonable design, easy and simple to handle not only can realize that the well-flushing liquid gets into by oil pipe, gets back to the well-flushing technology on ground by the sleeve pipe, has good leakproofness moreover, can avoid taking place the material leakage phenomenon at the normal during operation of oil recovery well.
Drawings
Fig. 1 is a schematic structural diagram of a forward well-flushing sliding sleeve switch for an oil field oil production well, which is provided by the utility model;
FIG. 2 is an enlarged view of the structure at A in FIG. 1;
fig. 3 is an enlarged view of the structure at B in fig. 1.
In the figure: 1 upper joint, 2 lower joint, 3 sleeve pipes, 4 first annular seal grooves, 5 first seal rings, 6 second annular seal grooves, 7 second seal rings, 8 first liquid passing holes, 9 sliding sleeves, 10 springs, 11 central pipes, 12 third annular seal grooves, 13 third seal rings, 14 fourth annular seal grooves, 15 fourth seal rings and 16 second liquid passing holes.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-3, a well flushing sliding sleeve switch for an oil production well in an oil field comprises an upper joint 1 and a lower joint 2, wherein the upper joint 1 and the lower joint 2 are both connected with an oil pipe, a connecting mechanism is arranged between the outer side wall of the upper joint 1 and the outer side wall of the lower joint 2, a plurality of first liquid passing holes 8 are arranged on the side wall of the connecting mechanism in a penetrating manner, the connecting mechanism comprises a sleeve 3 which is in threaded connection with the outer side wall of the upper joint 1 and the outer side wall of the lower joint 2, the upper joint 1, the lower joint 2 and the sleeve 3 form a tubular structure, the inner side wall of the sleeve 3 is a sealing surface, a first annular sealing groove 4 is arranged on the outer side wall of the upper joint 1, a plurality of first sealing rings 5 which are abutted against the inner side of the sleeve 3 are arranged in the first annular sealing groove 4, a second annular sealing groove 6 is arranged on the outer side wall of the lower joint 2, a plurality of second sealing, the first liquid passing hole 8 penetrates through the side wall of the sleeve 3, and it is noted that the first annular sealing groove 4, the first sealing ring 5, the second annular sealing groove 6 and the second sealing ring 7 can ensure good sealing performance between the sleeve 3 and the upper joint 1 and between the sleeve and the lower joint 2;
the inner side wall of the connecting mechanism is provided with a sealing mechanism, the sealing mechanism comprises a sliding sleeve 9 in sealing sliding connection with the inner side wall of the sleeve 3, the inner side wall and the outer side wall of the sliding sleeve 9 are both provided with sealing rings, it is noted that the sliding sleeve 9 realizes sealing with the inner side wall of the sleeve 3 through the sealing rings arranged on the outer side wall, a plurality of springs 10 are connected between the sliding sleeve 9 and the lower joint 2, the springs 10 are disc springs, it is noted that in an initial state, the springs 10 are compressed to form a certain pre-tightening force, and the upper end of the sliding sleeve 9 is higher than the height of the first liquid passing hole 8;
a communicating mechanism is arranged between the inner side wall of the upper joint 1 and the inner side wall of the lower joint 2, a plurality of second liquid passing holes 16 are arranged in the side wall of the communicating mechanism in a penetrating manner, the communicating mechanism comprises a central pipe 11 fixedly connected with the inner side wall of the upper joint 1 and the inner side wall of the lower joint 2, attention needs to be paid to the fact that the thick middle end and the thin middle end of the central pipe 11 are arranged, a third annular sealing groove 12 is formed in the inner side wall of the upper joint 1, a plurality of third sealing rings 13 abutting against the outer side wall of the central pipe 11 are arranged in the third annular sealing groove 12, a fourth annular sealing groove 14 is formed in the inner side wall of the lower joint 2, a plurality of fourth sealing rings 15 abutting against the outer side wall of the central pipe 11 are arranged in the fourth annular sealing groove 14, the second liquid passing holes 16 are arranged in the side wall of the central pipe 11 in a penetrating manner, and attention needs to be paid to the fact that the arrangement of the third, Good leakproofness between the inside wall of lower clutch 2, and sliding sleeve 9 realize through the sealing ring that the inside wall set up with the leakproofness between the center tube 11 lateral wall.
The utility model discloses its functional principle is explained to following mode of operation of accessible:
in the utility model, when the oil production well normally works, the liquid column in the oil pipe on the upper part of the switch flows into the closed space formed by the upper joint 1, the sliding sleeve 9, the central pipe 11 and the sleeve pipe 3 through the second liquid passing hole 16, the liquid column pressure acts on the upper end surface of the sliding sleeve 9, the sliding sleeve 9 is kept still under the pretightening force of the spring 10, the inside and the outside of the sleeve pipe 3 can not be communicated, and further the inside and the outside of the oil pipe can not be communicated, thereby ensuring the normal work of the oil production well;
when the oil production well is washed, the pressure in the oil pipe rises, the pressure acting on the upper end face of the sliding sleeve 9 becomes large, the compression spring 10 compresses the sliding sleeve 9 to move downwards, when the height of the sealing ring on the sliding sleeve 9 is lower than that of the first liquid passing hole 8 on the sleeve 3, the sleeve 3 is communicated with the inside and the outside, then the oil pipe is communicated with the inside and the outside, the washing liquid enters the annular space of the oil sleeve through the first liquid passing hole 8 on the sleeve 3, and returns to the ground under the action of the pressure, so that the positive well washing process of the oil well is realized.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. The utility model provides an oil field oil recovery well is being washed well sliding sleeve switch ware, includes top connection (1), lower clutch (2), its characterized in that, be equipped with coupling mechanism between the lateral wall of top connection (1) and the lateral wall of lower clutch (2), coupling mechanism's lateral wall runs through and is equipped with a plurality of first liquid holes (8) of crossing, coupling mechanism's inside wall is equipped with sealing mechanism, be equipped with the feed through mechanism between the inside wall of top connection (1) and lower clutch (2), the lateral wall of feed through mechanism runs through and is equipped with a plurality of seconds and crosses liquid hole (16).
2. The oil field oil production well forward flushing sliding sleeve switch device according to claim 1, characterized in that the connecting mechanism comprises a sleeve (3) which is in threaded connection with the outer side wall of the upper joint (1) and the outer side wall of the lower joint (2), the inner side wall of the sleeve (3) is a sealing surface, a first annular sealing groove (4) is formed in the outer side wall of the upper joint (1), a plurality of first sealing rings (5) which abut against the inner side of the sleeve (3) are arranged in the first annular sealing groove (4), a second annular sealing groove (6) is formed in the outer side wall of the lower joint (2), a plurality of second sealing rings (7) which abut against the inner side wall of the sleeve (3) are arranged in the second annular sealing groove (6), and the first liquid passing hole (8) penetrates through the side wall of the sleeve (3).
3. The sliding sleeve opener for the forward flushing of the oil production well in the oil field is characterized in that the sealing mechanism comprises a sliding sleeve (9) which is in sealing sliding connection with the inner side wall of the casing (3), and a plurality of springs (10) are connected between the sliding sleeve (9) and the lower connector (2).
4. The oil field oil recovery well forward well-flushing sliding sleeve switch device of claim 1, characterized in that, the communicating mechanism includes the center tube (11) with the equal fixed connection of inside wall of the inside wall of top connection (1), bottom connection (2), third annular seal groove (12) has been seted up to the inside wall of top connection (1), be equipped with a plurality of third sealing washer (13) that offset with the lateral wall of center tube (11) in third annular seal groove (12), fourth annular seal groove (14) has been seted up to the inside wall of bottom connection (2), be equipped with a plurality of fourth sealing washers (15) that offset with the lateral wall of center tube (11) in fourth annular seal groove (14), the second crosses liquid hole (16) and runs through the lateral wall of seting up in center tube (11).
5. The well-flushing sliding sleeve opener for the oil-producing well in the oil field is characterized in that sealing rings are arranged on the inner side wall and the outer side wall of the sliding sleeve (9).
6. A sliding sleeve opener for positive flushing of an oil-producing well in an oil field according to claim 3, characterized in that the spring (10) is a belleville spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020831252.XU CN212317944U (en) | 2020-05-18 | 2020-05-18 | Well-flushing sliding sleeve opening and closing device for oil field oil production well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020831252.XU CN212317944U (en) | 2020-05-18 | 2020-05-18 | Well-flushing sliding sleeve opening and closing device for oil field oil production well |
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| Publication Number | Publication Date |
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| CN212317944U true CN212317944U (en) | 2021-01-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020831252.XU Active CN212317944U (en) | 2020-05-18 | 2020-05-18 | Well-flushing sliding sleeve opening and closing device for oil field oil production well |
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| CN (1) | CN212317944U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112943155A (en) * | 2021-01-15 | 2021-06-11 | 中国石油天然气股份有限公司 | Hot washing well packer based on shape memory alloy |
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2020
- 2020-05-18 CN CN202020831252.XU patent/CN212317944U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112943155A (en) * | 2021-01-15 | 2021-06-11 | 中国石油天然气股份有限公司 | Hot washing well packer based on shape memory alloy |
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