CN205036343U - Take sliding sleeve of circulating sub - Google Patents
Take sliding sleeve of circulating sub Download PDFInfo
- Publication number
- CN205036343U CN205036343U CN201520645719.0U CN201520645719U CN205036343U CN 205036343 U CN205036343 U CN 205036343U CN 201520645719 U CN201520645719 U CN 201520645719U CN 205036343 U CN205036343 U CN 205036343U
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- China
- Prior art keywords
- sliding sleeve
- connecting cylinder
- sleeve
- lower connecting
- circulating sub
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Abstract
The utility model discloses a take sliding sleeve of circulating sub, including connector, last connecting cylinder, lower connecting cylinder, sliding sleeve, first sleeve and second sleeve, the connector with the connecting cylinder is fixed respectively down go up the both ends of connecting cylinder, a plurality of edges have been seted up down on the connecting cylinder the intercommunicating pore of the circumferencial direction distribution of lower connecting cylinder, the sliding sleeve through first shearings screw and the inside wall fixed connection of lower connecting cylinder, first telescopic one end with sliding sleeve fixed connection, the first telescopic other end with the inside wall interval of sliding sleeve sets up and encloses and becomes to have toroidal cavity, seted up on the first telescopic lateral wall with the first through -hole that toroidal cavity is linked together. The beneficial effect of the utility model: the utility model provides a take sliding sleeve of circulating sub both can use as the bottom circulating sub, realized liquid circulation and the function of closing the circulation circulation, also can use as the pressure differential sliding sleeve simultaneously, realized the operation function of first order fracturing.
Description
Technical field
The utility model relates to oil well pressure reduction sliding sleeve technical field, particularly relates to a kind of sliding sleeve with circulating sub.
Background technology
In oil drilling, completion practice technical field, often need to carry out staged fracturing operation to the main borehole of horizontal well or Multilateral Wells and branch well hole different reservoir, in staged fracturing process, need one can with hydraulic packer with the use of, the fracturing fluid control tool of construction operation such as to enter under not affecting later stage tubing string.The fracturing fluid control tool of existing routine is pressure reduction sliding sleeve, and pressure reduction slides in the process of use, not easily cuts off the shear screw on pressure reduction sliding sleeve, cannot set up fracturing fluid circulation passage, thus causes pressure break failure.
Utility model content
The technical problems to be solved in the utility model is, for above-mentioned defect of the prior art, provides a kind of sliding sleeve with circulating sub.
The utility model solves the technical scheme that its technical problem adopts:
A kind of sliding sleeve with circulating sub is provided, comprise connector, upper connecting cylinder, lower connecting cylinder, sliding sleeve, the first sleeve and the second sleeve, described connector and described lower connecting cylinder are separately fixed at the two ends of described upper connecting cylinder, described lower connecting cylinder offers the intercommunicating pore of multiple circumferencial direction along described lower connecting cylinder distribution, described sliding sleeve is fixedly connected with by the inside wall of the first shear screw with described lower connecting cylinder; One end of described first sleeve is fixedly connected with described sliding sleeve, the other end of described first sleeve and the inside wall interval of described sliding sleeve arrange and are surrounded by toroidal cavity, the sidewall of described first sleeve offers the first through hole be connected with described toroidal cavity, described second sleeve is fixedly connected with by the inside wall of the second shear screw with described first sleeve, and the sidewall of described second sleeve offers second through hole corresponding with described first through hole.
In the sliding sleeve of band circulating sub described in the utility model, be provided with Inner locking device between described sliding sleeve and described upper connecting cylinder, described internal locking device comprises the draw-in groove on the locating part be arranged on described sliding sleeve and the inside wall being opened in described upper connecting cylinder.
In the sliding sleeve of band circulating sub described in the utility model, the lateral wall of described first sleeve one end is convexly equipped with the second annular boss, described second annular boss abuts the inside wall to described sliding sleeve and is fixedly connected with described sliding sleeve.
In the sliding sleeve of band circulating sub described in the utility model, the lateral wall of described sliding sleeve is convexly equipped with the first annular boss of the inside wall abutted to described lower connecting cylinder, described first annular boss blocks described intercommunicating pore.
In the sliding sleeve of band circulating sub described in the utility model, the inside wall of described lower connecting cylinder is provided with positive stop lug boss, the end abutment of described sliding sleeve is to described positive stop lug boss.
In the sliding sleeve of band circulating sub described in the utility model, described upper connecting cylinder comprises connecting cylinder main body and connecting portion, and described upper connecting cylinder main body is set in outside described connector, and described connecting portion is plugged in described lower connecting cylinder.
In the sliding sleeve of band circulating sub described in the utility model, the junction of described connector and described upper connecting cylinder is provided with the first elastic sealing gasket.
In the sliding sleeve of band circulating sub described in the utility model, the position that described sliding sleeve abuts with described lower connecting cylinder is provided with the second elastic sealing gasket.
To sum up, implement the sliding sleeve of band circulating sub of the present utility model, there is following beneficial effect: the sliding sleeve of the band circulating sub of the application both can use as bottom cycle pipe nipple, realize the function of liquid-circulating and closedown circulation, also can be used as pressure reduction sliding sleeve to use simultaneously, realize the operation function of first order pressure break.When other sliding sleeve can normally be opened, the application only need close circulating sub when operation, when other sliding sleeve can not normally be opened, the application is after closedown circulating sub, continue pressurization, open the sliding sleeve that the application carries, for first order pressure break provides dual fail-safe, reduce the risk of first order fracturing work.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
The structural representation of the first state of the sliding sleeve of the band circulating sub that Fig. 1 provides for the utility model preferred embodiment;
The structural representation of the second state of the sliding sleeve of the band circulating sub that Fig. 2 provides for the utility model preferred embodiment;
The structural representation of the third state of the sliding sleeve of the band circulating sub that Fig. 3 provides for the utility model preferred embodiment.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
Fig. 1 ~ Fig. 3 shows a kind of sliding sleeve with circulating sub that the utility model preferred embodiment provides, and as shown in Figure 1, the sliding sleeve of band circulating sub comprises connector 1, upper connecting cylinder 2, lower connecting cylinder 3, sliding sleeve 4, first sleeve 5 and the second sleeve 6.Wherein, connector 1 and lower connecting cylinder 3 are separately fixed at the two ends of connecting cylinder 2, sliding sleeve 4 is fixedly connected with by the inside wall of the first shear screw 7 with lower connecting cylinder 3, one end of first sleeve 5 abuts the inside wall to sliding sleeve 4 and is fixedly connected with sliding sleeve 4, and the second sleeve 6 is fixedly connected with by the inside wall of the second shear screw 8 with the first sleeve 5.
One end of connector 1 is mainly used in the sliding sleeve of the band circulating sub of the application to be connected with other sliding sleeve (not shown), upper connecting cylinder 2 is fixed on the other end of connector 1, as shown in Figure 1, upper connecting cylinder 2 comprises interconnective upper connecting cylinder main body 21 and connecting portion 22, it is outer and be fixedly connected with connector 1 that upper connecting cylinder main body 21 is set in connector 1, and connecting portion 22 to be plugged in lower connecting cylinder 3 and to be fixedly connected with lower connecting cylinder 3.
Sliding sleeve 4 is fixedly connected with by the inside wall of the first shear screw 7 with lower connecting cylinder 3, the inside wall of lower connecting cylinder 3 is provided with positive stop lug boss 31, one end of positive stop lug boss 31 is fixed on the inside wall of lower connecting cylinder 3, the other end extends towards the direction of the center line near lower connecting cylinder 3, and one end of sliding sleeve 4 supports on positive stop lug boss 31.
Further, lower connecting cylinder 3 offers the intercommunicating pore 32 of multiple circumferencial direction along lower connecting cylinder 3 distribution, the lateral wall of sliding sleeve 4 one end is convexly equipped with first ring shape boss 41, first annular boss 41 abuts to the inside wall of lower connecting cylinder 3, and the first annular boss 41 to be fixed on the inside wall of lower connecting cylinder 3 by the first shear screw 7 and to shelter from intercommunicating pore 32.
The lateral wall of first sleeve 5 one end is convexly equipped with the second annular boss 51, second annular boss 51 abut the inside wall to sliding sleeve 4 and be fixedly connected with sliding sleeve 4, sliding sleeve 4 can be followed to make the first sleeve 5 and move together.The other end of the first sleeve 5 and the inside wall interval of sliding sleeve 4 arrange and are surrounded by toroidal cavity 52, the first sleeve 5 offer the first through hole 53 be connected with this toroidal cavity 52.
Second sleeve 6 is set in the first sleeve 5, and is fixedly connected with the first sleeve 5 by the second shear screw 8, the second sleeve 6 offers second through hole 61 corresponding with the first through hole 53.When the second sleeve 6 is fixedly connected with the first sleeve 5 by the second shear screw 8, the second through hole 61 and the first through hole 53 are interconnected.
During use, the first sleeve 5 and the second sleeve 6 can use as bottom cycle pipe nipple, realize the function of liquid-circulating and closedown circulation, and sliding sleeve 4 can use as pressure reduction sliding sleeve with lower connecting cylinder 3, realizes the operation function of first order pressure break.
Concrete, when the second sleeve 6 is fixedly connected with the first sleeve 5 by the second shear screw 8, the second through hole 61 and the first through hole 53 are interconnected, to realize liquid-circulating; When sliding sleeve 4 is fixedly connected with the inside wall of lower connecting cylinder 3 by the first shear screw 7, sliding sleeve 4 shelters from the intercommunicating pore 32 on lower connecting cylinder 3.
In operation process, by pressurization, shear the first shear screw 7, shown in composition graphs 2, the second sleeve 6 axially moves towards the side near connector 1 along it, and the second through hole 61 and the first through hole 53 are staggered mutually, thus realizes the function of closing circulation.
Due to objective factor may be there is, other sliding sleeve (not shown) be connected with connector 1 fails to realize first order fracturing work according to opening in the original plan, the application in the case, continue pressurization, shear the second shear screw 8, open the sliding sleeve 4 that the application carries, intercommunicating pore 32 is made to be opened (shown in composition graphs 3), thus make the sliding sleeve 4 of the application substitute other sliding sleeve to realize first order pressure break, for first order pressure break provides dual fail-safe, reduce the risk of first order fracturing work.
Therefore, if other sliding sleeve be connected with connector 1 is normally opened, can normally realize first order fracturing work, the application only need make the second through hole 61 and the first through hole 53 mutually stagger when operation, closes circulation.If when other sliding sleeve be connected with connector 1 can not normally be opened, the sliding sleeve 4 of the application can substitute other sliding sleeve to realize first order fracturing work, after making the second through hole 61 and the first through hole 53 mutually stagger, continues pressurization, shear the second shear screw 8, carry out fracturing work.Therefore, the shearing force of the second shear screw 8 will be used as reference settings according to the shearing force of the shear screw (not shown) of other sliding sleeve, and the shearing force of the application second shear screw 8 is greater than the shearing force of the shear screw of other sliding sleeve.
Preferably, in order to avoid sliding sleeve 4 is arbitrarily mobile in upper connecting cylinder 2 with lower connecting cylinder 3, be provided with Inner locking device between sliding sleeve 4 and upper connecting cylinder 3, as shown in Figure 1, this internal locking device comprises the locating part 42 be arranged on sliding sleeve 4 and the draw-in groove 23 be opened on the inside wall of connecting cylinder 2.As shown in Figure 3, when sliding sleeve 4 axially moves towards the side near connector 1 along it, locating part 42 holds and is fixed in draw-in groove 23, when the sliding sleeve 4 of the application is once after being opened, is just locked by internal locking device, forms permanent open mode.
Preferably, when sliding sleeve 4 is locked, intercommunicating pore 32 is all opened, and all the discharge capacity of intercommunicating pore 32 is greater than the fluid flux of connector 1.
Preferably, connector 1 is provided with the first elastic sealing gasket (non-label) with the junction of upper connecting cylinder 2, the position that sliding sleeve 4 abuts with lower connecting cylinder 3 is provided with the second elastic sealing gasket (non-label), collides in sliding process to avoid sliding sleeve 4 with lower connecting cylinder 3.
To sum up, implement the sliding sleeve of band circulating sub of the present utility model, there is following beneficial effect: the sliding sleeve of the band circulating sub of the application both can use as bottom cycle pipe nipple, realize the function of liquid-circulating and closedown circulation, also can be used as pressure reduction sliding sleeve to use simultaneously, realize the operation function of first order pressure break.When other sliding sleeve can normally be opened, the application only need close circulating sub when operation, when other sliding sleeve can not normally be opened, the application is after closedown circulating sub, continue pressurization, open the sliding sleeve that the application carries, for first order pressure break provides dual fail-safe, reduce the risk of first order fracturing work.In addition, the sliding sleeve of the band circulating sub of the application can replace two original instruments, thus reduces the use of fracturing tool, saves pressure break cost.
Although the utility model is described by specific embodiment, it will be appreciated by those skilled in the art that, when not departing from the utility model scope, various conversion can also be carried out and be equal to substituting to the utility model.In addition, for particular condition or material, various amendment can be made to the utility model, and not depart from scope of the present utility model.Therefore, the utility model is not limited to disclosed specific embodiment, and should comprise the whole embodiments fallen in the utility model right.
Claims (8)
1. the sliding sleeve with circulating sub, it is characterized in that, comprise connector (1), upper connecting cylinder (2), lower connecting cylinder (3), sliding sleeve (4), first sleeve (5) and the second sleeve (6), described connector (1) and described lower connecting cylinder (3) are separately fixed at the two ends of described upper connecting cylinder (2), described lower connecting cylinder (3) offers the intercommunicating pore (32) of multiple circumferencial direction along described lower connecting cylinder (3) distribution, described sliding sleeve (4) is fixedly connected with by the inside wall of the first shear screw (7) with described lower connecting cylinder (3), one end of described first sleeve (5) is fixedly connected with described sliding sleeve (4), the other end of described first sleeve (5) and the inside wall interval of described sliding sleeve (4) arrange and are surrounded by toroidal cavity (52), the sidewall of described first sleeve (5) offers the first through hole (53) be connected with described toroidal cavity (52), described second sleeve (6) is fixedly connected with by the inside wall of the second shear screw (8) with described first sleeve (5), the sidewall of described second sleeve (6) offers second through hole (61) corresponding with described first through hole (53).
2. the sliding sleeve of band circulating sub according to claim 1, it is characterized in that, be provided with Inner locking device between described sliding sleeve (4) and described upper connecting cylinder (2), described internal locking device comprises the draw-in groove (23) on the locating part (42) be arranged on described sliding sleeve (4) and the inside wall being opened in described upper connecting cylinder (2).
3. the sliding sleeve of band circulating sub according to claim 1, it is characterized in that, the lateral wall of described first sleeve (5) one end is convexly equipped with the second annular boss (51), and described second annular boss (51) abuts the inside wall to described sliding sleeve (4) and is fixedly connected with described sliding sleeve (4).
4. the sliding sleeve of band circulating sub according to claim 1, it is characterized in that, the lateral wall of described sliding sleeve (4) is convexly equipped with first annular boss (41) of the inside wall abutted to described lower connecting cylinder (3), described first annular boss (41) blocks described intercommunicating pore (32).
5. the sliding sleeve of band circulating sub according to claim 1, it is characterized in that, the inside wall of described lower connecting cylinder (3) is provided with positive stop lug boss (31), and the end abutment of described sliding sleeve (4) is to described positive stop lug boss (31).
6. the sliding sleeve of band circulating sub according to claim 1, it is characterized in that, described upper connecting cylinder (2) comprises connecting cylinder main body (21) and connecting portion (22), described upper connecting cylinder main body (21) is set in described connector (1) outward, and described connecting portion (22) is plugged in described lower connecting cylinder (3).
7. the sliding sleeve of band circulating sub according to claim 1, is characterized in that, described connector (1) is provided with the first elastic sealing gasket with the junction of described upper connecting cylinder (2).
8. the sliding sleeve of band circulating sub according to claim 1, is characterized in that, the position that described sliding sleeve (4) abuts with described lower connecting cylinder (3) is provided with the second elastic sealing gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520645719.0U CN205036343U (en) | 2015-08-25 | 2015-08-25 | Take sliding sleeve of circulating sub |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520645719.0U CN205036343U (en) | 2015-08-25 | 2015-08-25 | Take sliding sleeve of circulating sub |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205036343U true CN205036343U (en) | 2016-02-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520645719.0U Active CN205036343U (en) | 2015-08-25 | 2015-08-25 | Take sliding sleeve of circulating sub |
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|---|---|
| CN (1) | CN205036343U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112177567A (en) * | 2020-12-01 | 2021-01-05 | 东营市汇诚石油工程技术有限责任公司 | Door-closable fracturing sliding sleeve and using method thereof |
-
2015
- 2015-08-25 CN CN201520645719.0U patent/CN205036343U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112177567A (en) * | 2020-12-01 | 2021-01-05 | 东营市汇诚石油工程技术有限责任公司 | Door-closable fracturing sliding sleeve and using method thereof |
| CN112177567B (en) * | 2020-12-01 | 2021-04-02 | 东营市汇诚石油工程技术有限责任公司 | Door-closable fracturing sliding sleeve and using method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210305 Address after: 516000 No.1 Factory building, No.10 Yuanhui Road, Chenjiang street, Zhongkai high tech Zone, Huizhou City, Guangdong Province Patentee after: BAIQIN ENERGY TECHNOLOGY (HUIZHOU) Co.,Ltd. Address before: 518054 7th floor, Tianli central business square, Haide Third Road, Nanshan District, Shenzhen City, Guangdong Province Patentee before: PETRO-KING OILFIELD TECHNOLOGY Ltd. |
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| TR01 | Transfer of patent right |