CN203879456U - Reverse circulation valve in which ball can be thrown - Google Patents
Reverse circulation valve in which ball can be thrown Download PDFInfo
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- CN203879456U CN203879456U CN201420293908.1U CN201420293908U CN203879456U CN 203879456 U CN203879456 U CN 203879456U CN 201420293908 U CN201420293908 U CN 201420293908U CN 203879456 U CN203879456 U CN 203879456U
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- casing pipe
- sealed casing
- ball
- hole
- reverse circulation
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Abstract
The utility model discloses a reverse circulation valve in which a ball can be thrown. The reverse circulation valve in which the ball can be thrown is composed of a valve body and a sealing sleeve, wherein a first tube and a second tube are connected to form the valve body, the two ends of the valve body are provided with a first connector and a second connector respectively, an annular space is formed between the first tube and the second tube, and a first through hole communicated with the annular space is formed in the radial direction of the tube wall of the second tube; the sealing sleeve is arranged in the valve body, one end of the sealing sleeve is inserted into the annular space, the annular space is sealed by the sealing sleeve to form a cavity, the sealing sleeve and the second tube are fixed through a shearing pin, the sealing sleeve and the first tube as well as the sealing sleeve and the second tube are sealed in a sliding mode, a first clamping groove is formed in the outer wall of the sealing sleeve, an opening clamping ring is arranged in the first clamping groove, a second clamping groove is formed in the inner wall of the second tube, an annular protrusion is formed on the inner wall of the sealing sleeve, and the annular protrusion forms a seat sealing face matched with a seat sealing ball; after the seat sealing ball is thrown in the reverse circulation valve and internal pressure is kept or external pressure is applied till the shearing pin is cut through, the sealing sleeve moves till a circulation channel is open, and the opening clamping ring acts on the first clamping groove and the second clamping groove at the same time. The reverse circulation valve in which the ball can be thrown is high in reliability.
Description
Technical field
The utility model relates to reverse circulation valve technical field, espespecially a kind of by stuff ON cycle passage can ball-throwing type reverse circulation valve.
Background technology
Reverse circulation valve is connected in tieback string, and Main Function is to realize ganging up of oil pipe and sleeve pipe.Reverse circulation valve can be used for pressing crack construction sand plug or changes and when flow string needs kill-job, to set up circulation canal, also after can finishing for construction, being communicated with oil pipe and oil jacket annular space, being convenient to casing pressure monitoring in manufacturing process, is the important downhole tool that well fracturing and acid stimulation are processed.In implementing acid fracturing volume increase work progress, reverse circulation valve can either guarantee the circulation seal in direct circulation process, can meet the requirement of anti-circulation well cleanup again simultaneously.Traditional reverse circulation valve is suppressed by annular space the shear pin making on reverse circulation valve and is cut off, thereby exposes circulation canal, realizes ganging up of oil pipe and sleeve pipe.Reverse circulation valve can be used for: 1, the instrument of the anti-circulation well cleanup after deep well fracturing; When 2, pressing crack construction sand plug or replacing flow string need kill-job, set up circulation canal; After 3 constructions finish, be communicated with oil pipe and oil jacket annular space, be convenient to casing pressure monitoring in manufacturing process; 4, realize the object of removing sand plug.But, the current circumstance complication due to site operation, the phenomenon that exists reverse circulation valve not open.
As can be seen here, above-mentioned existing reverse circulation valve, in structure and use, obviously still has inconvenience and defect, and is urgently further improved.The design people is research and innovation in addition actively, can ball-throwing type reverse circulation valve to what found a kind of new structure, and make it have more practicality.
Utility model content
In order to solve the above-mentioned problems in the prior art, the utility model provide a kind of can ball-throwing type reverse circulation valve, solved the opening ways that prior art exists single, open risk of failure high problem.
In order to solve the problems of the technologies described above, the utility model provides following technical scheme:
Can ball-throwing type reverse circulation valve, comprising:
Valve body, described valve body is tightly connected and is formed by the first body and the second body, the end of the first body one side of described valve body forms the first joint, the other end of valve body forms the second joint, described the first body portion is inserted in the second body, and between described the first body and the second body, form annular space, radially have the first through hole on the tube wall of described the second body, described the first through hole is communicated with described annular space;
Sealed casing pipe, be located in described valve body, one end of described Sealed casing pipe is inserted described annular space and described annular space shutoff is formed to chamber, described the first through hole is communicated with described chamber, described Sealed casing pipe and described the second body are fixed by shear pin, slipper seal between described Sealed casing pipe and the first body, slipper seal between described Sealed casing pipe and the second body, on the outer wall of described Sealed casing pipe, circumferentially have the first draw-in groove, in described the first draw-in groove, be provided with slotted collar, on the inwall of described the second body, circumferentially have the second draw-in groove, on the inwall of described Sealed casing pipe, be formed with annular protrusion, the minimum diameter of described annular protrusion is less than the minimum diameter of described the first body, described annular protrusion forms in the first joint one side the face that sets matching with setting ball,
When needs ON cycle passage, dropping into setting ball carries out inside and builds the pressure and act on Sealed casing pipe or external pressurized and entered and in chamber, acted on Sealed casing pipe by the first through hole, described Sealed casing pipe is cut off after shear pin, Sealed casing pipe to the second joint direction move until inside and outside valve body conducting realize circulation canal and open, now slotted collar acts on the first draw-in groove and the second draw-in groove simultaneously to realize Sealed casing pipe relative in the axial direction with the second body fixing.
The purpose of this utility model and solve its technical problem and also can be applied to the following technical measures to achieve further.
Preferably, aforesaid can ball-throwing type reverse circulation valve, on the tube wall of described the second body, radially also have the second through hole, described the second through hole with respect to the first through hole near second joint one end; Described Sealed casing pipe and described the second body are by shear pin fixedly time, slipper seal between the first through hole of described the second body and the position between the second through hole and Sealed casing pipe, slipper seal between the position between the second through hole to the second joint of the second body and Sealed casing pipe.
Preferably, aforesaid can ball-throwing type reverse circulation valve, described the second through hole is opened on the second body between end to the second joint of the first body in the second body.
Preferably, aforesaid can ball-throwing type reverse circulation valve, the edge of described the second through hole is concordant with the end that described the first body is positioned at the second body.
Preferably, aforesaid can ball-throwing type reverse circulation valve, on the inwall of described the second body, be formed with step, described step with respect to the second draw-in groove near second joint one end; When circulation canal, open, when slotted collar acts on the first draw-in groove and the second draw-in groove simultaneously, the end of described Sealed casing pipe is butted on described step.
Preferably, aforesaid can ball-throwing type reverse circulation valve, described Sealed casing pipe is tightly connected and is formed by ball seat and packer, the annular protrusion that described formation sets face is formed at the inwall of ball seat, described annular space is inserted in one end of described ball seat, between described ball seat and packer, is threaded connection.Between described ball seat and packer, also by trip bolt, fix.
Preferably, aforesaid can ball-throwing type reverse circulation valve, between described Sealed casing pipe and described the first body and and the second body between respectively by the slipper seal of O shape circle.
Preferably, aforesaid can ball-throwing type reverse circulation valve, on the outer wall of described Sealed casing pipe, circumferentially have seal groove, in described seal groove, be provided with the O shape circle of realizing slipper seal between Sealed casing pipe and described the second body; The first body inserts on the outer wall of part of described the second body and has seal groove, is provided with the O shape circle of realizing slipper seal between Sealed casing pipe and described the first body in described seal groove.
Preferably, aforesaid can ball-throwing type reverse circulation valve, between described the first body and described the second body, be threaded connection.
Preferably, aforesaid can ball-throwing type reverse circulation valve, between described the first body and described the second body, also by trip bolt, fix.
Compared with prior art, the beneficial effects of the utility model are:
Of the present utility modelly can ball-throwing type reverse circulation valve both can drop into setting ball and carry out inside and build the pressure and act on Sealed casing pipe or outside (oil jacket annular space) pressurization realizes the unlatching of circulation canal in Sealed casing pipe, improved the reliability of reverse circulation valve work, eliminate circulation canal and opened failed risk, greatly reduced construction risk.
Above-mentioned explanation is only the general introduction of technical solutions of the utility model, in order to better understand technological means of the present utility model, and can be implemented according to the content of manual, below with preferred embodiment of the present utility model and coordinate accompanying drawing to be described in detail as follows.
Accompanying drawing explanation
Fig. 1 is that structure that can ball-throwing type reverse circulation valve of the present utility model is cutd open figure.
The specific embodiment
For further setting forth the utility model, be to reach technological means and the effect that predetermined utility model object is taked, below in conjunction with accompanying drawing and preferred embodiment, its specific embodiment of break-off type radome, structure, feature and effect thereof to according to the utility model proposes, be described in detail as follows.In following explanation, the not necessarily same embodiment that different " embodiment " or " embodiment " refer to.In addition, special characteristic, structure or the feature in one or more embodiment can be combined by any suitable form.
Fig. 1 is that structure that can ball-throwing type reverse circulation valve of the present utility model is cutd open figure.As shown in Figure 1, can ball-throwing type reverse circulation valve, comprising:
Valve body 1, valve body 1 is tightly connected and is formed by the first body 110 and the second body 120, the end of the first body 110 1 sides of valve body 1 forms the first joint 111, the other end of valve body 1 forms the second joint 121, in first body 110 partial insertion the second bodys 120, and between the first body 110 and the second body 120, form and on the tube wall of annular space 130, the second bodys 120, radially have the first through hole 122, the first through holes 122 and be communicated with annular spaces 130;
Sealed casing pipe 2, be located in valve body 1, one end of Sealed casing pipe 2 is inserted annular space 130 and annular space 130 shutoff is formed to chamber, the first through hole 122 is communicated with chamber, Sealed casing pipe 2 and the second body 120 are fixing by shear pin 3, slipper seal between Sealed casing pipe 2 and the first body 110, slipper seal between Sealed casing pipe 2 and the second body 120, on the outer wall of Sealed casing pipe 2, circumferentially have the first draw-in groove 210, in the first draw-in groove 210, be provided with slotted collar 4, on the inwall of the second body 120, circumferentially have the second draw-in groove 123, on the inwall of Sealed casing pipe 2, be formed with annular protrusion 220, the minimum diameter of annular protrusion 220 is less than the minimum diameter of the first body 110, annular protrusion 220 forms in the first joint 111 1 sides the face that sets 221 matching with setting ball 5 (in figure shown in dotted line),
When needs ON cycle passage, dropping into setting ball 5 carries out inside and builds the pressure and act on Sealed casing pipe 2 or external pressurized and entered and in chamber, acted on Sealed casing pipe 2 by the first through hole 122, Sealed casing pipe 2 is cut off after shear pin 3, Sealed casing pipe 2 moves until the inside and outside conducting of valve body 1 realizes circulation canal opens to the second joint 121 directions, and now slotted collar 4 acts on the first draw-in groove 210 and the second draw-in groove 123 simultaneously to realize Sealed casing pipe 2 relative in the axial direction fixing with the second body 120.
Of the present utility modelly can ball-throwing type reverse circulation valve both can drop into setting ball and carry out inside and build the pressure and act on Sealed casing pipe or outside (oil jacket annular space) pressurization realizes the unlatching of circulation canal in Sealed casing pipe, by two kinds of opening ways, improved the reliability of reverse circulation valve work, eliminate circulation canal and opened failed risk, greatly reduced construction risk.
In above-described embodiment, the first through hole 122 had been both pressure transmission hole, was again circulation port.In the chamber that the first through hole 122 forms the highly pressurised liquid introducing Sealed casing pipe 2 shutoff annular spaces in oil jacket annular space as circulation port, Sealed casing pipe 2 applies shearing force to shear pin 3 under the effect of pressure, after shear pin 3 is cut off, Sealed casing pipe 2 slides to the second joint 121 directions rapidly, Sealed casing pipe 2 skids off annular space 130 completely, the first through hole 122 will be communicated with inside and outside valve body 1 via annular space 130 as circulation port, realize circulation canal conducting, now slotted collar 4 acts on the first draw-in groove 210 and the second draw-in groove 123 simultaneously to realize Sealed casing pipe 2 relative in the axial direction fixing with the second body 120.The first through hole 122 is for to make progress equally distributed a plurality of for 120 weeks at the second body.The first through hole 122 is generally 4.Because liquid-circulating need to reach certain flow, this just needs circulation port to reach certain bore size.And be guarantee perforate body (being the second body 120 in the utility model) firm, same cutting area, to be advisable at the upwardly extending bar hole of the second body 120 axle.So the first through hole 122 is at the upwardly extending bar hole of the second body 120 axle.This will cause annular space 130 length to increase.In addition, circulation canal also may limited flow via annular space.Therefore as one of above-described embodiment preferably, the following examples provide a kind of improvement.
As one of above-described embodiment preferably, on the tube wall of the second body 120, radially also have the second through hole 124, the second through holes 124 with respect to the first through hole 122 near second joint 121 one end; Sealed casing pipe 2 and the second body 120 are by shear pin 3 fixedly time, slipper seal between the first through hole 122 of the second body 120 and the position between the second through hole 124 and Sealed casing pipe 2, slipper seal between the position between the second through hole 124 to second joints 121 of the second body 120 and Sealed casing pipe.Like this, the first through hole 122 mainly plays the effect of pressure transmission as pressure transmission hole, and the second through hole 124 is born main ringing as circulation port.Certain the first through hole 122 is also born certain ringing when circulation canal conducting.In the chamber that the first through hole 122 forms the highly pressurised liquid introducing Sealed casing pipe 2 shutoff annular spaces in oil jacket annular space as pressure transmission hole, or adopt the mode of pitching, input setting ball is carried out inside and is built the pressure, Sealed casing pipe 2 applies shearing force to shear pin 3 under the effect of pressure, after shear pin 3 is cut off, Sealed casing pipe 2 slides to the second joint 121 directions rapidly, Sealed casing pipe 2 skids off annular space 130 completely, and expose the second through hole 124, realize circulation canal conducting, now slotted collar 4 acts on the first draw-in groove 210 and the second draw-in groove 123 simultaneously to realize Sealed casing pipe 2 relative in the axial direction fixing with the second body 120.Equally, the second through hole 124 is a plurality of, and a plurality of the second through holes 124 are upwards uniformly distributed at the second body for 120 weeks.The second through hole 124 is generally 4.Because the function that now the first through hole 122 is born with the second through hole 124 is different, so the bore size of the second through hole 124 is generally greater than the bore size of the first through hole 122.The second through hole 124 is at the upwardly extending bar hole of the second body 120 axle.Because the second through hole 124 plays main ringing, so the second through hole 124 is opened on the second body 120 between end to the second joint 121 of the first body 110 in the second body 120.That is second through hole 124 be opened in outside annular space scope, by the second through hole 124, do not need to realize inside and outside connection through annular space like this.Further, the edge of the second through hole 124 is concordant with the end that the first body 110 is positioned at the second body 120.So both guarantee the unimpeded of circulation canal, shortened again the opening travel of Sealed casing pipe 2 as far as possible.
As above-mentioned arbitrary embodiment preferably, on the inwall of the second body 120, be formed with step 125, step 125 with respect to the second draw-in groove 123 near second joint 121 one end; When circulation canal, open, when slotted collar 3 acts on the first draw-in groove 210 and the second draw-in groove 123 simultaneously, the end of Sealed casing pipe 2 is butted on step 125.Can avoid like this Sealed casing pipe 2 cutting off the rear excessive velocities of shear pin 3, to surpass travel range.
Sealed casing pipe in the utility model can as a whole structure, can certainly be to be assembled by multistage.In this preferred embodiment, Sealed casing pipe 2 is tightly connected and is formed by ball seat 22 and packer 21, forms the inwall that the annular protrusion 220 set face 221 is formed at ball seat 22, and annular space 130 is inserted in one end of ball seat 22.Between ball seat 22 and packer 21, be threaded connection.For the steadiness that steamed stuffed bun connects between the two, also fixing by trip bolt 6 between ball seat 22 and packer 21.Sealing between ball seat 22 and packer 21 can realize by sealing ring, also can realize by self sealss screw thread.Or adopt self sealss screw thread and sealing ring to realize sealing between the two simultaneously.
In the present embodiment, between Sealed casing pipe 2 and the first body 110 and and the second body 120 between slipper seal by O shape circle, realize slipper seal respectively.The mode that employing arranges O shape circle is comparatively simple, practicality.Certainly also can adopt other applicable modes realize Sealed casing pipe 2 and the first body 110 and and the second body 120 between slipper seal, slipper seal technology of the prior art all can adopt.Specifically arranging of O shape circle can be the mode shown in figure, also can change as required.As shown in the figure, on the outer wall of Sealed casing pipe 2, circumferentially have seal groove, in seal groove, be provided with the O shape circle of realizing slipper seal between Sealed casing pipe 2 and the second body 120; On the outer wall of the part of first body 110 insertion the second bodys 120, also have seal groove, in sealing groove, be provided with the O shape circle of realizing slipper seal between Sealed casing pipe 2 and the first body 110.On the second body 120 in Fig. 1, offer the first through hole 122 and the second through hole 124, so, being set between the first through hole 122 and the second through hole 124, twice O shape circle realizes the sealing between Sealed casing pipe 2 and the second body 120.Being set between the second through hole 124 and the second joint 121, twice O shape circle realizes the sealing between Sealed casing pipe 2 and the second body 120.
Sealing between the first body 110 and the second body 120 can realize by sealing ring, also can realize by self sealss screw thread.Or adopt self sealss screw thread and sealing ring to realize sealing between the two simultaneously.Between the first body 110 and the second body 120, be threaded connection.Further, also fixing by trip bolt 7 between the first body 110 and the second body 120.
In general, the first joint 111 in the utility model is the female female joint of tool, and the second joint 121 is for having externally threaded male joint.
The above, it is only preferred embodiment of the present utility model, not the utility model is done to any pro forma restriction, although the utility model discloses as above with preferred embodiment, yet not in order to limit the utility model, any those skilled in the art, do not departing within the scope of technical solutions of the utility model, when can utilizing the technology contents of above-mentioned announcement to make a little change or being modified to the equivalent embodiment of equivalent variations, in every case be the content that does not depart from technical solutions of the utility model, any simple modification of above embodiment being done according to technical spirit of the present utility model, equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.
Claims (10)
1. can ball-throwing type reverse circulation valve, it is characterized in that, comprising:
Valve body, described valve body is tightly connected and is formed by the first body and the second body, the end of the first body one side of described valve body forms the first joint, the other end of valve body forms the second joint, described the first body portion is inserted in the second body, and between described the first body and the second body, form annular space, radially have the first through hole on the tube wall of described the second body, described the first through hole is communicated with described annular space;
Sealed casing pipe, be located in described valve body, one end of described Sealed casing pipe is inserted described annular space and described annular space shutoff is formed to chamber, described the first through hole is communicated with described chamber, described Sealed casing pipe and described the second body are fixed by shear pin, slipper seal between described Sealed casing pipe and the first body, slipper seal between described Sealed casing pipe and the second body, on the outer wall of described Sealed casing pipe, circumferentially have the first draw-in groove, in described the first draw-in groove, be provided with slotted collar, on the inwall of described the second body, circumferentially have the second draw-in groove, on the inwall of described Sealed casing pipe, be formed with annular protrusion, the minimum diameter of described annular protrusion is less than the minimum diameter of described the first body, described annular protrusion forms in the first joint one side the face that sets matching with setting ball,
When needs ON cycle passage, dropping into setting ball carries out inside and builds the pressure and act on Sealed casing pipe or external pressurized and entered and in chamber, acted on Sealed casing pipe by the first through hole, described Sealed casing pipe is cut off after shear pin, Sealed casing pipe to the second joint direction move until inside and outside valve body conducting realize circulation canal and open, now slotted collar acts on the first draw-in groove and the second draw-in groove simultaneously to realize Sealed casing pipe relative in the axial direction with the second body fixing.
2. according to claim 1 can ball-throwing type reverse circulation valve, it is characterized in that, on the tube wall of described the second body, radially also have the second through hole, described the second through hole with respect to the first through hole near second joint one end; Described Sealed casing pipe and described the second body are by shear pin fixedly time, slipper seal between the first through hole of described the second body and the position between the second through hole and Sealed casing pipe, slipper seal between the position between the second through hole to the second joint of the second body and Sealed casing pipe.
3. according to claim 2 can ball-throwing type reverse circulation valve, it is characterized in that, described the second through hole is opened on the second body between end to the second joint of the first body in the second body.
4. according to claim 3 can ball-throwing type reverse circulation valve, it is characterized in that, the edge of described the second through hole is concordant with the end that described the first body is positioned at the second body.
5. according to claim 1 can ball-throwing type reverse circulation valve, it is characterized in that, on the inwall of described the second body, be formed with step, described step with respect to the second draw-in groove near second joint one end; When circulation canal, open, when slotted collar acts on the first draw-in groove and the second draw-in groove simultaneously, the end of described Sealed casing pipe is butted on described step.
6. according to claim 1 can ball-throwing type reverse circulation valve, it is characterized in that, described Sealed casing pipe is tightly connected and is formed by ball seat and packer, the annular protrusion that described formation sets face is formed at the inwall of ball seat, described annular space is inserted in one end of described ball seat, between described ball seat and packer, be threaded connection, between described ball seat and packer, also by trip bolt, fix.
7. according to claim 1 can ball-throwing type reverse circulation valve, it is characterized in that, between described Sealed casing pipe and described the first body and and the second body between respectively by the slipper seal of O shape circle.
8. according to claim 7 can ball-throwing type reverse circulation valve, it is characterized in that, on the outer wall of described Sealed casing pipe, circumferentially have seal groove, in described seal groove, be provided with the O shape circle of realizing slipper seal between Sealed casing pipe and described the second body; The first body inserts on the outer wall of part of described the second body and has seal groove, is provided with the O shape circle of realizing slipper seal between Sealed casing pipe and described the first body in described seal groove.
9. according to claim 1 can ball-throwing type reverse circulation valve, it is characterized in that, between described the first body and described the second body, be threaded connection.
10. according to claim 1 can ball-throwing type reverse circulation valve, it is characterized in that, between described the first body and described the second body, also by trip bolt, fix.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420293908.1U CN203879456U (en) | 2014-06-04 | 2014-06-04 | Reverse circulation valve in which ball can be thrown |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420293908.1U CN203879456U (en) | 2014-06-04 | 2014-06-04 | Reverse circulation valve in which ball can be thrown |
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| CN203879456U true CN203879456U (en) | 2014-10-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420293908.1U Active CN203879456U (en) | 2014-06-04 | 2014-06-04 | Reverse circulation valve in which ball can be thrown |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103982159A (en) * | 2014-06-04 | 2014-08-13 | 安东石油技术（集团）有限公司 | Reverse circulation valve with ball capable of being thrown |
-
2014
- 2014-06-04 CN CN201420293908.1U patent/CN203879456U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103982159A (en) * | 2014-06-04 | 2014-08-13 | 安东石油技术（集团）有限公司 | Reverse circulation valve with ball capable of being thrown |
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