CN202937227U - Drill-free type ball-throwing sliding sleeve - Google Patents
Drill-free type ball-throwing sliding sleeve Download PDFInfo
- Publication number
- CN202937227U CN202937227U CN 201220699396 CN201220699396U CN202937227U CN 202937227 U CN202937227 U CN 202937227U CN 201220699396 CN201220699396 CN 201220699396 CN 201220699396 U CN201220699396 U CN 201220699396U CN 202937227 U CN202937227 U CN 202937227U
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- China
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- sliding sleeve
- inner sliding
- shear pin
- urceolus
- liquid outlet
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Abstract
The utility model discloses a drill-free type ball-throwing sliding sleeve which comprises an outer cylinder, an inner sliding sleeve, a shear pin and a guide pin. A ball base groove, a shear pin outer hole, an outer cylinder liquid outlet and a guide pin outer hole are formed in the inner side wall of the outer cylinder. An inner sliding sleeve is arranged inside an inner cavity of the outer cylinder in a sleeved mode. A flexible ball base is arranged at the upper end of the inner sliding sleeve. A boss is arranged on the outer side of the upper end of the flexible ball base. An inner sliding sleeve liquid outlet, a shear pin inner hole and a guide groove are formed in the outer side wall of the inner sliding sleeve. Two ends of the shear pin are respectively embedded in the shear pin outer hole and the shear pin inner hole. Two ends of the guide pin are respectively embedded in the guide pin outer hole and the guide groove. The distance between the ball base groove and the outer cylinder liquid outlet is equal to the distance between the boss and the inner sliding sleeve liquid outlet. A sealing ring is arranged on the position where the outer outline surface of the inner sliding sleeve is contacted with the inner outline surface of the outer cylinder. The drill-free type ball-throwing sliding sleeve eliminates the drilling-grinding process of a drilling tool to the ball base, can effectively shorten operating time and decreases operating cost.
Description
Technical field
The utility model relates to completion tool field, Oil/gas Well down-hole, particularly a kind ofly exempts to bore formula pitching sliding sleeve.
Background technology
The pitching sliding sleeve is one of instrument of outbalance in the Oil/gas Well separate zone production, and it can provide reliable feed liquor and gas production passage, can be used for oil production by layer, seperated layer water injection, separate stratum fracfturing and separate layer acid treatment etc.The application of pitching sliding sleeve can improve the Oil/gas Well recovery ratio, also can improve oilfield exploitation efficient simultaneously, saves cost of winning.
The pitching sliding sleeve that uses at present mostly is drillable ball injection sliding sleeve, namely can be lowered to drilling tool after fracturing methods finishes the ball seat of pitching sliding sleeve is bored, thereby the effective internal diameter of cutting-down is beneficial to the later stage operation.Yet drilling has extended the activity duration with the process of boring the abrading-ball seat, has increased operating cost.
Summary of the invention
Bore long deficiency of abrading-ball seat cycle in order to overcome present drillable ball injection sliding sleeve, the purpose of this utility model is to provide a kind of and exempts to bore formula pitching sliding sleeve for the open hole well staged fracturing, this device can be realized the self expandable of the rear ball seat of sliding sleeve unlatching, thus effective hole diameter of cutting-down.
To achieve these goals, the technical solution of the utility model is as follows:
A kind ofly exempt to bore formula pitching sliding sleeve, comprise urceolus, inner sliding sleeve, shear pin and guide pin.Urceolus is the inner cylinder-like structure that is provided with cavity, and its two ends are provided with screw thread, is respectively used to connect the working pipe string of both sides, sliding sleeve front and back.Be disposed with from top to bottom the outer hole of hole, urceolus liquid outlet and guide pin outside ball seat groove, shear pin on the inside wall of urceolus.Inner sliding sleeve is the inner cylinder-like structure that is provided with cavity, and inner sliding sleeve is enclosed within the internal cavities of urceolus.The upper end of inner sliding sleeve is provided with the flexible ball base that can radially shrink and expand, and the upper end arranged outside of flexible ball base has boss.Be disposed with from top to bottom inner sliding sleeve liquid outlet, shear pin endoporus on the lateral wall of inner sliding sleeve and along the gathering sill of the axially extended strip of inner sliding sleeve.The two ends of shear pin are entrenched in respectively in the outer hole of shear pin and shear pin endoporus, and the two ends of guide pin are entrenched in respectively in the outer hole of guide pin and gathering sill.Ball seat groove and urceolus liquid outlet equal boss and inner sliding sleeve liquid outlet along the distance of inner sliding sleeve axial direction along the distance of urceolus axial direction.Interior contoured surface contacted position at the outer surface of inner sliding sleeve and urceolus is provided with a plurality of sealing rings.
The ball seat groove matches with boss, is used for unlatching and the locking of flexible ball base.Urceolus liquid outlet and inner sliding sleeve liquid outlet are all be used to liquid gas passage is provided.Shear pin is used for urceolus and inner sliding sleeve are linked together, and plays fixing both effects of relative position; Guide pin matches with gathering sill, is used for the circumferential rotation of restriction inner sliding sleeve.Distance between distance between ball seat groove and urceolus liquid outlet and boss and inner sliding sleeve liquid outlet is set to formed objects, like this when flexible ball base expansion, when boss is entrenched in the ball seat groove, the urceolus liquid outlet can be corresponding with the inner sliding sleeve liquid outlet, consists of unobstructed liquid outlet channel.Sealing ring plays the isolated effect of liquid.
Adopt the formula pitching sliding sleeve of exempting to bore of the present utility model, grind the expansion that can realize effective hole diameter without boring after opening, saved and be lowered to drilling tool to the brill grinder order of ball seat, can effectively shorten the activity duration and reduce operating cost.In addition, of the present utility modelly exempt to bore formula pitching sliding sleeve and can be applied to simultaneously Vertical Well and horizontal well, and have sands-proof check, open after the function of self-locking.
Description of drawings
Fig. 1 is that the utility model is exempted to bore formula pitching sliding sleeve and is in structural representation under closure state.
Fig. 2 is that the utility model is exempted to bore formula pitching sliding sleeve and is in structural representation under opening.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1,1 is urceolus, and 2 is inner sliding sleeve, and 3 is shear pin, and 4 is guide pin.Urceolus 1 is provided with screw thread and the inner cylinder-like structure that is provided with cavity for two ends, and is disposed with from top to bottom the outer hole 104 of hole 102, urceolus liquid outlet 103 and guide pin outside ball seat groove 101, shear pin on the inside wall of urceolus 1.Inner sliding sleeve 2 is the inner cylinder-like structure that is provided with cavity; Inner sliding sleeve 2 is enclosed within the internal cavities of urceolus 1.The upper end of inner sliding sleeve 2 is provided with the flexible ball base 201 that can radially shrink and expand, and the upper end arranged outside of flexible ball base 201 has boss 202.Be disposed with from top to bottom inner sliding sleeve liquid outlet 203, shear pin endoporus 204 on the lateral wall of inner sliding sleeve 2 and along the gathering sill 205 of inner sliding sleeve 2 axially extended strips.The two ends of shear pin 3 are entrenched in respectively in the outer hole 102 of shear pin and shear pin endoporus 204, and the two ends of guide pin 4 are entrenched in respectively in the outer hole 104 of guide pin and gathering sill 205.Ball seat groove 101 and urceolus liquid outlet 103 equal boss 202 and the distance of inner sliding sleeve liquid outlet 203 along inner sliding sleeve 2 axial directions along the distance of urceolus 1 axial direction.Interior contoured surface contacted position at the outer surface of inner sliding sleeve 2 and urceolus 1 is provided with a plurality of sealing rings 5.
When said apparatus is in initial closed state, ball sealer is dropped into and drops on the conical surface of flexible ball base 201 front ends from well head, thereby make the inner upper-lower section of pitching sliding sleeve separate.Along with the liquid continuous sliding sleeve top of entering, the thrust that ball sealer is subject to increases gradually.When thrust exceeded the break limit of shear pin 3, shear pin 3 was cut off, inner sliding sleeve 2 and each parts whole bottom of shifting to urceolus 1 under the promotion of ball sealer mounted thereto.Along with relatively moving of inner sliding sleeve 2, the flexible ball base 201 on inner sliding sleeve 2 tops arrives the position of ball seat groove 101, and radially open under the effect of self elastic force, as shown in Figure 2, this moment, inner sliding sleeve 2 was locked on urceolus 1, inner sliding sleeve liquid outlet 203 on inner sliding sleeve 2 is corresponding with the urceolus liquid outlet 103 on urceolus 1, and sliding sleeve is opened.
The above is only preferred embodiment of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvement, these improvement also should be considered as protection domain of the present utility model.
Claims (1)
1. exempt to bore formula pitching sliding sleeve for one kind, it is characterized in that: comprise urceolus (1), inner sliding sleeve (2), shear pin (3) and guide pin (4); Described urceolus (1) is provided with screw thread and the inner cylinder-like structure that is provided with cavity for two ends, and is disposed with from top to bottom the outer hole (104) of hole (102), urceolus liquid outlet (103) and guide pin outside ball seat groove (101), shear pin on the inside wall of described urceolus (1); Described inner sliding sleeve (2) is the inner cylinder-like structure that is provided with cavity, and described inner sliding sleeve (2) is enclosed within the internal cavities of described urceolus (1); The upper end of described inner sliding sleeve (2) is provided with the flexible ball base (201) that can radially shrink and expand, and the upper end arranged outside of described flexible ball base (201) has boss (202); Be disposed with from top to bottom inner sliding sleeve liquid outlet (203), shear pin endoporus (204) on the lateral wall of described inner sliding sleeve (2) and along the gathering sill (205) of the axially extended strip of described inner sliding sleeve (2); The two ends of described shear pin (3) are entrenched in respectively in the outer hole (102) of described shear pin and described shear pin endoporus (204); The two ends of described guide pin (4) are entrenched in respectively in the outer hole (104) of described guide pin and described gathering sill (205); Described ball seat groove (101) and described urceolus liquid outlet (103) equal described boss (202) and the distance of described inner sliding sleeve liquid outlet (203) along described inner sliding sleeve (2) axial direction along the distance of described urceolus (1) axial direction; Interior contoured surface contacted position at the outer surface of described inner sliding sleeve (2) and described urceolus (1) is provided with a plurality of sealing rings (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220699396 CN202937227U (en) | 2012-12-17 | 2012-12-17 | Drill-free type ball-throwing sliding sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220699396 CN202937227U (en) | 2012-12-17 | 2012-12-17 | Drill-free type ball-throwing sliding sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202937227U true CN202937227U (en) | 2013-05-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220699396 Expired - Lifetime CN202937227U (en) | 2012-12-17 | 2012-12-17 | Drill-free type ball-throwing sliding sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202937227U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104179486A (en) * | 2013-05-22 | 2014-12-03 | 中国石油化工股份有限公司 | Three-petal type oil and gas well layering fracture acidizing erosion preventing flow divider |
| CN105909209A (en) * | 2016-07-01 | 2016-08-31 | 陈晓新 | Cementing and fracturing device |
| CN110905446A (en) * | 2018-09-18 | 2020-03-24 | 中国石油天然气股份有限公司 | Double-ball switch device |
| CN110905447A (en) * | 2018-09-18 | 2020-03-24 | 中国石油天然气股份有限公司 | Underground switch device |
| CN112127855A (en) * | 2020-11-02 | 2020-12-25 | 天津凯雷油田技术有限公司 | Full latus rectum sand control double-stage mechanism to staged fracturing pit shaft |
| WO2023101831A1 (en) * | 2021-11-30 | 2023-06-08 | Baker Hughes Oilfield Operations Llc | Shifting sleeve with extrudable ball and dog |
| US11814926B2 (en) | 2021-11-30 | 2023-11-14 | Baker Hughes Oilfield Operations Llc | Multi plug system |
| US11891869B2 (en) | 2021-11-30 | 2024-02-06 | Baker Hughes Oilfield Operations | Torque mechanism for bridge plug |
| US11891868B2 (en) | 2021-11-30 | 2024-02-06 | Baker Hughes Oilfield Operations Llc | Extrusion ball actuated telescoping lock mechanism |
-
2012
- 2012-12-17 CN CN 201220699396 patent/CN202937227U/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104179486A (en) * | 2013-05-22 | 2014-12-03 | 中国石油化工股份有限公司 | Three-petal type oil and gas well layering fracture acidizing erosion preventing flow divider |
| CN105909209A (en) * | 2016-07-01 | 2016-08-31 | 陈晓新 | Cementing and fracturing device |
| CN105909209B (en) * | 2016-07-01 | 2018-03-30 | 陈晓新 | One kind well cementation fracturing device |
| CN110905446A (en) * | 2018-09-18 | 2020-03-24 | 中国石油天然气股份有限公司 | Double-ball switch device |
| CN110905447A (en) * | 2018-09-18 | 2020-03-24 | 中国石油天然气股份有限公司 | Underground switch device |
| CN110905446B (en) * | 2018-09-18 | 2022-05-06 | 中国石油天然气股份有限公司 | Double-ball switch device |
| CN112127855A (en) * | 2020-11-02 | 2020-12-25 | 天津凯雷油田技术有限公司 | Full latus rectum sand control double-stage mechanism to staged fracturing pit shaft |
| WO2023101831A1 (en) * | 2021-11-30 | 2023-06-08 | Baker Hughes Oilfield Operations Llc | Shifting sleeve with extrudable ball and dog |
| US11814926B2 (en) | 2021-11-30 | 2023-11-14 | Baker Hughes Oilfield Operations Llc | Multi plug system |
| US11891869B2 (en) | 2021-11-30 | 2024-02-06 | Baker Hughes Oilfield Operations | Torque mechanism for bridge plug |
| US11891868B2 (en) | 2021-11-30 | 2024-02-06 | Baker Hughes Oilfield Operations Llc | Extrusion ball actuated telescoping lock mechanism |
| US11927067B2 (en) | 2021-11-30 | 2024-03-12 | Baker Hughes Oilfield Operations Llc | Shifting sleeve with extrudable ball and dog |
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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 | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201208 Address after: 100007 Beijing, Dongzhimen, North Street, No. 9, No. Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC Bohai Drilling Engineering Co.,Ltd. Address before: 300457 science and Technology Development Office of Bohai Drilling Engineering Co., Ltd., No. 106 Huang Hai Road, Tianjin Binhai New Area Development Zone Patentee before: CNPC Bohai Drilling Engineering Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130515 |