CN204941450U - A kind of down-hole plugging valve - Google Patents
A kind of down-hole plugging valve Download PDFInfo
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- CN204941450U CN204941450U CN201520595218.6U CN201520595218U CN204941450U CN 204941450 U CN204941450 U CN 204941450U CN 201520595218 U CN201520595218 U CN 201520595218U CN 204941450 U CN204941450 U CN 204941450U
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- intubate
- boss
- ball valve
- lock groove
- oil pipe
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Abstract
The utility model discloses a kind of down-hole plugging valve, for the oil passage in shutoff oil pipe, be arranged between oil pipe and lower oil pipe, comprise the intubate (1) be connected with upper oil pipe and the ball valve (9) be arranged in the middle part of plugging valve, ball valve (9) is for shutoff oil passage, ball valve (9) is connected with ball valve motion arm (7), ball valve motion arm (7) opens and closes for controlling ball valve (9), ball valve motion arm (7) is connected with and connects pawl (5), connect pawl (5) to be connected with intubate (1), to away from or insert ball valve (9) direction move intubate (1), ball valve motion arm (7) is driven to move up and down to close and open the oil passage in oil pipe by connecting pawl (5).A kind of down-hole plugging valve of the present utility model, can flow channel in shutoff oil pipe, avoids well killing fluid to miss or formation fluid overflows; When needing Oil/gas Well to resume production, again can open plugging valve, formation fluid can be entered in oil pipe; Do not affect packer normally to work.
Description
Technical field
The utility model relates to a kind of plugging valve, particularly relates to a kind of down-hole plugging valve.
Background technology
Present stage, domestic Oil/gas Well uses packer to carry out completion in a large number, later stage needs to carry out kill job when changing the workover treatments such as oil pipe, for the reservoir of hole type or fracture development type, kill job often causes a large amount of well killing fluid to be missed, not only increase operating risk, improve operating cost, also can cause reservoir pollution, even cause Oil/gas Well to scrap.Use down-hole plugging valve to coordinate packer to use, packer shutoff pit shaft can be coordinated in workover treatment process, reach the object preventing leakage and overflow.Meanwhile, when resuming production, down-hole plugging valve can be opened again.
The down-hole plugging valve of current existence mainly contains sleeve type, clack valve type and ball-valve type plugging valve, and the valve core channel of sleeve type plugging valve is on tubing string sidewall, and plugging valve can not realize full-bore after opening, and the operations such as later stage production logging cannot be carried out; The spool of clack valve type plugging valve is ball-and-seat structure, and formation fluid can be stoped excessive, but well killing fluid can not be avoided to miss; Existing ball-valve type plugging valve is connected to packer top, can affect deblocking or the fishing of packer when mating part hydraulic packer uses.
Utility model content
The purpose of this utility model be to provide a kind of can the down-hole plugging valve of plugging tubing string.
For achieving the above object, the concrete technical scheme of a kind of down-hole plugging valve of the present utility model is:
A kind of down-hole plugging valve, for the oil passage in shutoff oil pipe, be arranged between oil pipe and lower oil pipe, comprise the intubate be connected with upper oil pipe and the ball valve be arranged in the middle part of plugging valve, ball valve is used for shutoff oil passage, ball valve is connected with ball valve motion arm, ball valve motion arm opens and closes for controlling ball valve, ball valve motion arm is connected with connection pawl, connect pawl to be connected with intubate, to away from or insert the direction of ball valve and move intubate, drive ball valve motion arm to move up and down to close and open the oil passage in oil pipe by connecting pawl.
Further, the outer cover of intubate is provided with urceolus, and the top of urceolus is provided with packer, and the bottom of urceolus is provided with lower contact, and the insertion outer wall of intubate is provided with for sealing intubate and packer gap seals.
Further, connect the top of pawl and middle part be respectively arranged with to both sides projection off-position boss and open a boss, the inwall of urceolus be provided with the off-position lock groove of depression and open a lock groove, off-position lock groove is positioned at out the top of a lock groove, off-position boss can embed in off-position lock groove, opens a boss and can embed out in a lock groove.
Further, off-position lock groove and the spacing opened between the lock groove spacing that is greater than off-position boss and opens between a boss.
Further, off-position boss and open and being respectively off-position outer lug boss and open an outer lug boss near outer tube inner wall side on a boss, off-position outer lug boss can embed in off-position lock groove, opening an outer lug boss can embed out in a lock groove, off-position boss and open a boss and being respectively off-position inner convex platform and open an inner convex platform near cannula outer wall side.
Further, the outer wall in the middle part of intubate is provided with protruding control boss, controlling boss can respectively with off-position inner convex platform with open an inner convex platform and be connected, and mobile intubate is moved up and down by the control boss band pawl that is dynamically connected, and connection pawl drive ball valve motion arm moves up and down.
Further, the bottom of intubate is intubate head, and mobile intubate can drive intubate head to be synchronized with the movement.
The advantage of a kind of down-hole plugging valve of the present utility model is:
1) during workover treatment, can plugging valve be closed, the flow channel in shutoff oil pipe, avoid well killing fluid to miss or formation fluid spilling;
2) when needing Oil/gas Well to resume production, again can open plugging valve, formation fluid can be entered in oil pipe;
3) do not affect packer normally to work, do not affect the operations such as the deblocking of packer, salvaging yet;
4) after ball valve is opened, intubate head can enter in ball valve, and protection ball valve is not by formation fluid erosion, and tool interior is full-bore structure, does not affect the wireline operations such as later stage production logging;
5) can be applicable to crack, hole type misses in serious oil gas well completion operation, so that from down-hole plugging pit shaft in well workover process, avoid mud to miss pollution reservoir in a large number;
6) spool is without caulking gum original paper, and heat-resisting ability is better, can be used for ultra-deep, high temperature gas well wellblock.
Accompanying drawing explanation
Fig. 1 is the structural representation of the opening of down-hole plugging valve of the present utility model;
Fig. 2 opens the view that an outer lug boss is positioned at out the plugging valve in a lock groove in the utility model;
Fig. 3 is the view of the plugging valve that the control boss in utility model contacts with off-position inner convex platform;
Fig. 4 is the view that in the utility model, off-position outer lug boss is positioned at the plugging valve of off-position lock groove;
Fig. 5 is the structural representation of the closed condition of down-hole plugging valve of the present utility model.
Detailed description of the invention
In order to better understand the purpose of this utility model, structure and function, below in conjunction with accompanying drawing, further detailed description is done to a kind of down-hole plugging valve of the present utility model.
As shown in Figures 1 to 5, it shows for a kind of down-hole plugging valve of the present utility model, for the oil passage in shutoff oil pipe, plugging valve is arranged between oil pipe and lower oil pipe (not shown), comprise the intubate 1 be connected with upper oil pipe and the ball valve 9 be arranged in the middle part of plugging valve, ball valve 9 is for shutoff oil passage, ball valve 9 is connected with ball valve motion arm 7, ball valve motion arm 7 opens and closes for controlling ball valve 9, ball valve motion arm 7 is connected with and connects pawl 5, connect pawl 5 to be connected with intubate 1, mobile intubate 1 away from or insert ball valve 9 and drive ball valve motion arm 7 to close and open oil passage in oil pipe, close ball valve 9, the fluid in shaft bottom can be stoped excessive, open ball valve 9, Oil/gas Well can resume production.Wherein, the top of plugging valve is connected with upper tubing round thread by intubate 1, and the bottom of intubate 1 is provided with lower contact 4, and the bottom of plugging valve is connected with tubing round thread by lower contact 4.
Further, the outer cover of intubate 1 is provided with urceolus 3, and the top of urceolus 3 is connected with packer 2, and the bottom of urceolus 3 is connected with the screw top of lower contact, the outer wall of intubate 1 is provided with and inserts sealing 11, for sealing the gap between intubate 1 and packer 2.
Further, the inwall of urceolus 3 be provided with the off-position lock groove 31 of depression and open a lock groove 32, off-position lock groove 31 is positioned at out the top of a lock groove 32, connect the top of pawl 5 and middle part be respectively arranged with to both sides projection off-position boss and open a boss, off-position boss and open being respectively off-position outer lug boss 52 and opening an outer lug boss 54 near urceolus 3 inwall side on a boss, off-position outer lug boss 52 can embed in off-position lock groove 31, opening an outer lug boss 54 can embed out in a lock groove 32, off-position boss and open a boss being respectively off-position inner convex platform 51 and opening an inner convex platform 53 near intubate 1 outer wall side, mobile intubate 1 can be with the pawl 5 that is dynamically connected to move up and down.Wherein, off-position lock groove 31 and the spacing opened between a lock groove 32 spacing that is greater than off-position boss and opens between a boss.
Further, outer wall in the middle part of intubate 1 is provided with protruding control boss 12, control boss 12 to arrange near connecting pawl 5, controlling boss 12 can respectively with off-position inner convex platform 51 with open an inner convex platform 53 and contact and engage, mobile intubate 1 is with the pawl 5 that is dynamically connected to move up and down by controlling boss 12, thus, connect pawl 5 and drive ball valve motion arm 7 to move up and down by connecting short section 6.
Further, the bottom of intubate 1 is intubate 13, and mobile intubate 1 can drive intubate 13 to be synchronized with the movement, intubate 13 can insert or away from ball valve 9 to reach the object of opening or closing ball valve 9, intubate 13 is inserted in ball valve 9 completely, can reduce the erosion of formation fluid to ball valve.
Further, the top of ball valve 9 is provided with top race 8, and the bottom of ball valve 9 is provided with bottom race 10, and top race 8 and bottom race 10 are for the sphere of seal ball-valve.
Be described below in conjunction with the course of work of accompanying drawing to a kind of down-hole plugging valve of the present utility model:
When intubate 1 moves up, because of connect on pawl 5 open that an outer lug boss 54 is positioned at urceolus 3 open a lock groove 32, move to the direction away from intubate 1 to make out a boss, control boss in intubate 1 not with open an inner convex platform 53 and contact, and off-position outer lug boss 51 moves to the direction near intubate 1; Intubate 1 continues to move up away from ball valve 9, control boss 12 with outside the Pass inner convex platform 51 contact and engage, intubate 1 is with the pawl 5 that is dynamically connected to be moved upward to off-position outer lug boss 52 and is embedded the stop motion of off-position lock groove 31 interpolation pipe 1, ball valve motion arm 7 is driven to close ball valve shutoff oil pipe inner fluid passage by connecting pawl 5, off-position boss moves to make off-position inner convex platform 51 and controls boss 12 and be separated to the direction away from intubate 1, and opens a boss and move to the direction near intubate 1.
When intubate 1 moves down, the off-position outer lug boss 52 connected on pawl 5 is positioned at the off-position lock groove 31 of urceolus 3, opens a boss and moves to the direction near intubate 1, and the control boss 12 in intubate 1 can contact and engages with opening an inner convex platform 53; Intubate 1 continues to move down, intubate 1 is with the pawl 5 that is dynamically connected to be moved downward in insertion ball valve 9 by controlling boss 12, opening an outer lug boss 54 embedding opens in a lock groove 32, open a boss to be separated with control boss 12 to the direction motion away from intubate 1 to make out an inner convex platform 53, and off-position boss moves to the direction near intubate 1, and intubate 1 opens ball valve 9 can open oil pipe inner fluid passage.
Down-hole plugging valve of the present utility model, during workover treatment, can cut out plugging valve, the flow channel in shutoff oil pipe, avoids well killing fluid to miss or formation fluid spilling; When needing Oil/gas Well to resume production, again can open plugging valve, formation fluid can be entered in oil pipe; Do not affect packer normally to work, do not affect the operations such as the deblocking of packer, salvaging yet; After ball valve is opened, intubate head can enter in ball valve, and protection ball valve is not by formation fluid erosion, and tool interior is full-bore structure, does not affect the wireline operations such as later stage production logging; Can be applicable to crack, hole type misses in serious oil gas well completion operation, so that from down-hole plugging pit shaft in well workover process, avoid mud to miss pollution reservoir in a large number; Without caulking gum original paper, heat-resisting ability is better, can be used for ultra-deep, high temperature gas well wellblock.
By specific embodiment, the utility model is further described above; but it should be understood that; here concrete description; should not be construed as the restriction to essence of the present utility model and scope; one of ordinary skilled in the art to the various amendments that above-described embodiment is made, belongs to the scope that the utility model is protected after reading this specification.
Claims (8)
1. a down-hole plugging valve, for the oil passage in shutoff oil pipe, it is characterized in that, be arranged between oil pipe and lower oil pipe, comprise the intubate (1) be connected with upper oil pipe and the ball valve (9) be arranged in the middle part of plugging valve, ball valve (9) is for shutoff oil passage, ball valve (9) is connected with ball valve motion arm (7), ball valve motion arm (7) opens and closes for controlling ball valve (9), ball valve motion arm (7) is connected with and connects pawl (5), connect pawl (5) to be connected with intubate (1), to away from or insert ball valve (9) direction move intubate (1), ball valve motion arm (7) is driven to move up and down to close and open the oil passage in oil pipe by connecting pawl (5).
2. down-hole plugging valve according to claim 1, it is characterized in that, the outer cover of intubate (1) is provided with urceolus (3), the top of urceolus (3) is connected with packer (2), and the bottom of urceolus (3) is connected with lower contact (4).
3. down-hole plugging valve according to claim 2, is characterized in that, the outer wall of intubate (1) is provided with and seals (11) with the insertion in packer (2) gap for sealing intubate (1).
4. down-hole plugging valve according to claim 2, it is characterized in that, connect pawl (5) top and middle part be respectively arranged with to both sides projection off-position boss and open a boss, the inwall of urceolus (3) be provided with the off-position lock groove (31) of depression and open a lock groove (32), off-position lock groove (31) is positioned at out the top of a lock groove (32), off-position boss can embed in off-position lock groove (31), opens a boss and can embed out in a lock groove (32).
5. down-hole plugging valve according to claim 4, is characterized in that, off-position lock groove (31) and open the spacing that the spacing between a lock groove (32) is greater than off-position boss and opens between a boss.
6. down-hole plugging valve according to claim 4, it is characterized in that, off-position boss and opening on a boss near being respectively off-position outer lug boss (52) and opening an outer lug boss (54) of urceolus (3) inwall side, off-position outer lug boss (52) can embed in off-position lock groove (31), opening an outer lug boss (54) can embed out in a lock groove (32), off-position boss and open a boss being respectively off-position inner convex platform (51) and opening an inner convex platform (53) near intubate (1) outer wall side.
7. down-hole plugging valve according to claim 6, it is characterized in that, the outer wall at intubate (1) middle part is provided with protruding control boss (12), control boss (12) can respectively with off-position inner convex platform (51) with open an inner convex platform (53) and be connected, mobile intubate (1) is with the pawl (5) that is dynamically connected to move up and down by controlling boss (12), connects pawl (5) and drives ball valve motion arm (7) to move up and down.
8. down-hole plugging valve according to claim 1, is characterized in that, the bottom of intubate (1) is intubate head (13), and mobile intubate (1) can drive intubate head (13) to be synchronized with the movement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520595218.6U CN204941450U (en) | 2015-08-07 | 2015-08-07 | A kind of down-hole plugging valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520595218.6U CN204941450U (en) | 2015-08-07 | 2015-08-07 | A kind of down-hole plugging valve |
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| Publication Number | Publication Date |
|---|---|
| CN204941450U true CN204941450U (en) | 2016-01-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520595218.6U Active CN204941450U (en) | 2015-08-07 | 2015-08-07 | A kind of down-hole plugging valve |
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| Country | Link |
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| CN (1) | CN204941450U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110905423A (en) * | 2019-12-18 | 2020-03-24 | 西南石油大学 | Double-gradient drilling string safety control device without marine riser |
-
2015
- 2015-08-07 CN CN201520595218.6U patent/CN204941450U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110905423A (en) * | 2019-12-18 | 2020-03-24 | 西南石油大学 | Double-gradient drilling string safety control device without marine riser |
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