CN202745847U - Controllable hydraulic ejector - Google Patents
Controllable hydraulic ejector Download PDFInfo
- Publication number
- CN202745847U CN202745847U CN 201220364792 CN201220364792U CN202745847U CN 202745847 U CN202745847 U CN 202745847U CN 201220364792 CN201220364792 CN 201220364792 CN 201220364792 U CN201220364792 U CN 201220364792U CN 202745847 U CN202745847 U CN 202745847U
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- Prior art keywords
- sliding sleeve
- ejector
- joint
- sleeve
- connects
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 238000007789 sealing Methods 0.000 claims abstract description 8
- 238000005520 cutting process Methods 0.000 claims abstract description 5
- 239000012530 fluid Substances 0.000 claims description 5
- 230000009466 transformation Effects 0.000 abstract description 3
- 230000011218 segmentation Effects 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 1
- 238000009418 renovation Methods 0.000 description 1
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Abstract
The utility model discloses a controllable formula hydraulic ejector is that self under realizing the certain pressure of effective control opens, the sealed ball hinders the unblocked problem of lower part tubular column and designs in solving the segmentation transformation, mainly including connecting in the sprayer body of joint lower extreme, establishing the lower sliding sleeve of connecting in the downthehole elastic sliding sleeve of joint undergauge, ball seat and vertical joint-cutting in the elastic sliding sleeve, elastic sliding sleeve below are connected, establish the hydraulic flow passageway and the direction recess on the lower sliding sleeve, connect pressure cap and nozzle etc. on the body. The controllable hydraulic ejector can effectively control self opening under certain pressure, and realizes one-trip pipe column multi-section separate layer fracturing. After the fracturing sliding sleeve is opened by the sealing ball, the sealing ball falls to the outside of the ejector through the opening release of the elastic sliding sleeve, so that the effective smoothness of a pipe column channel is realized.
Description
Technical field
The utility model relates to a kind of controllable type hydraulic ejector, belongs to oil-gas field fracturing renovation technique field.
Background technology
Hydro-jet fracturing technology beam hole and pressure break are integrated, and have simplified working procedure, have improved efficiency of construction, have reduced the oil-gas field development cost.Hydraulic jet perforation and pressure break are adopted in long celebrating oil field in the well fracturing of the modes such as cased hole completion and barefoot completion is transformed, obtained considerable economic benefit.
At present, used ejector has conventional ejector and sleeve type ejector.Conventional ejector fracturing fluid enters ejector and directly penetrates the single hop pressure break in the time of can only carrying out construction operation from spray-hole.The sleeve type ejector is cut off pin by stuff, pushes sliding sleeve, spills the high-pressure water shot circulation road, carries out the transformation of this interval.Yet though the sleeve type ejector can carry out staged fracturing, its shortcoming is that ball sealer is sitting in the ejector cavity, can't realize that the bottom tubing string is unimpeded, has limited the normal operation of ejector lower tool and some subsequent jobs.
Summary of the invention
The purpose of this utility model is to provide a kind of controllable type hydraulic ejector, and the unlatching operation that it can effectively be controlled under the certain pressure solves the unimpeded problem of ball sealer obstruction bottom tubing string in the segmentation transformation.
Concrete technical scheme of the present utility model is as follows:
The joint lower end connects ejector body, and is provided with joint face anticreep pin and sealing ring, connects the elastomeric sleeve of the state that tightens up in the joint undergauge hole.Elastomeric sleeve is thin wall cylinder-shaped, and its top is ball seat, and the bottom evenly has and makes its vertical joint-cutting that possesses spring function, and elastomeric sleeve connects the low sleeve of its below by fixing pin.Low sleeve barrel top evenly has fluid course radially, and the drum outer wall bottom is provided with the direction recess of circumferentially being located by shop bolt, and the direction recess upper and lower is equipped with sealing ring, and low sleeve connects ejector body by shear pin.Connect in the ejector body barrel radial hole by the fixing nozzle of pressure cap.
Compared to existing technology, this controllable type hydraulic ejector can effectively be controlled at the unlatching operation under the certain pressure, realizes the separate stratum fracfturing of one-trip string multistage.After ball sealer is opened fracturing sliding bush, open release by the elasticity of elastomeric sleeve, fall to the ejector outside, realize the effectively unimpeded of tubing string passage.
Description of drawings
Fig. 1 is controllable type hydraulic ejector structural representation.
The specific embodiment
With reference to Fig. 1 embodiment of the present utility model is further specified:
Embodiment:
The controllable type hydraulic ejector mainly is comprised of joint 1, elastomeric sleeve 2, anticreep pin 3, sealing ring 4, fixing pin 5, low sleeve 6, shear pin 7, ejector body 8, pressure cap 9, nozzle 10 and shop bolt 11:
The joint 1 lower end ejector body 8 that is threaded, and be provided with joint face anticreep pin 3 and sealing ring 4, connect the elastomeric sleeve 2 of the state that tightens up in the joint 1 undergauge hole.Elastomeric sleeve 2 is thin wall cylinder-shaped, and its top is ball seat, and the bottom evenly has and makes its six to ten vertical joint-cuttings that possess spring function, and elastomeric sleeve 2 connects the low sleeve 6 of its below by fixing pin 5.Low sleeve 6 barrel tops evenly have four to six fluid courses 61 radially, the drum outer wall bottom is provided with a direction recess 62 of circumferentially being located by shop bolt 11, direction recess 62 upper and lowers respectively are equipped with the two seals circle, and low sleeve 6 connects ejector body 8 by shear pin 7.Ejector body 8 barrel radial hole internal threads connect the nozzle 10 of being fixed by pressure cap 9.
The operating principle of the controlled hydraulic ejector of the utility model is as follows:
After the hydraulic ejector of fracturing string bottom lost efficacy, drop into ball sealer, ball sealer sits on the ball seat of elastomeric sleeve 2 upper ends.After pressure was raised to certain value, low sleeve 6 was cut off shear pin 7, and is descending with elastomeric sleeve 2.When elastomeric sleeve 2 skidded off joint 1 undergauge hole, the vertical joint-cutting in its underpart discharged and opens, and ball sealer is fallen, and falls outside the ejector through low sleeve 6 inner chambers.Meanwhile, low sleeve 6 comes downwards to the position that its fluid course 61 is aimed at nozzles 10, and the high-pressure water shot nozzle 10 of flowing through is penetrated, and carries out perforating and fracturing.
Claims (1)
1. controllable type hydraulic ejector is characterized in that:
Joint (1) lower end connects ejector body (8), and is provided with joint face anticreep pin (3) and sealing ring (4), connects the elastomeric sleeve (2) of the state that tightens up in joint (1) the undergauge hole; Elastomeric sleeve (2) is thin wall cylinder-shaped, and its top is ball seat, and the bottom evenly has and makes its vertical joint-cutting that possesses spring function, and elastomeric sleeve (2) connects the low sleeve (6) of its below by fixing pin (5); Low sleeve (6) barrel top evenly has fluid course (61) radially, the drum outer wall bottom is provided with the direction recess (62) of circumferentially being located by shop bolt (11), direction recess (62) upper and lower is equipped with sealing ring, and low sleeve (6) connects ejector body (8) by shear pin (7); Connect in ejector body (8) the barrel radial hole by the fixing nozzle 10 of pressure cap (9)).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220364792 CN202745847U (en) | 2012-07-26 | 2012-07-26 | Controllable hydraulic ejector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220364792 CN202745847U (en) | 2012-07-26 | 2012-07-26 | Controllable hydraulic ejector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202745847U true CN202745847U (en) | 2013-02-20 |
Family
ID=47705264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220364792 Expired - Fee Related CN202745847U (en) | 2012-07-26 | 2012-07-26 | Controllable hydraulic ejector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202745847U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106761597A (en) * | 2016-12-27 | 2017-05-31 | 中国石油天然气股份有限公司 | Single-wing hydraulic ejector |
| CN109469470A (en) * | 2018-12-20 | 2019-03-15 | 中国海洋石油集团有限公司 | A kind of horizontal well naked eye staged fracturing equipment |
| CN109577925A (en) * | 2017-09-28 | 2019-04-05 | 中国石油天然气股份有限公司 | Multi-cluster spray gun, hydraulic sand-blasting perforation multi-cluster staged fracturing pipe column and process |
| CN110700801A (en) * | 2019-11-08 | 2020-01-17 | 西南石油大学 | Automatic jet flow crushing tool for solid fluidization exploitation of natural gas hydrate |
-
2012
- 2012-07-26 CN CN 201220364792 patent/CN202745847U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106761597A (en) * | 2016-12-27 | 2017-05-31 | 中国石油天然气股份有限公司 | Single-wing hydraulic ejector |
| CN109577925A (en) * | 2017-09-28 | 2019-04-05 | 中国石油天然气股份有限公司 | Multi-cluster spray gun, hydraulic sand-blasting perforation multi-cluster staged fracturing pipe column and process |
| CN109577925B (en) * | 2017-09-28 | 2020-12-01 | 中国石油天然气股份有限公司 | Multi-cluster spray gun, hydraulic sand-blasting perforation multi-cluster staged fracturing pipe column and process |
| CN109469470A (en) * | 2018-12-20 | 2019-03-15 | 中国海洋石油集团有限公司 | A kind of horizontal well naked eye staged fracturing equipment |
| CN110700801A (en) * | 2019-11-08 | 2020-01-17 | 西南石油大学 | Automatic jet flow crushing tool for solid fluidization exploitation of natural gas hydrate |
| US11193333B2 (en) | 2019-11-08 | 2021-12-07 | Southwest Petroleum University | Automatic jet breaking tool for solid fluidization exploitation of natural gas hydrate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130220 Termination date: 20210726 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |