CN201372786Y - Sleeve type injector for firing oil-gas producing layer - Google Patents
Sleeve type injector for firing oil-gas producing layer Download PDFInfo
- Publication number
- CN201372786Y CN201372786Y CN200920106105U CN200920106105U CN201372786Y CN 201372786 Y CN201372786 Y CN 201372786Y CN 200920106105 U CN200920106105 U CN 200920106105U CN 200920106105 U CN200920106105 U CN 200920106105U CN 201372786 Y CN201372786 Y CN 201372786Y
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- spray gun
- gun body
- sleeve
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- oil
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Abstract
A sleeve type injector for firing an oil-gas producing layer is applied to the layer-by-layer fracturing and acidizing operation of an oil-gas well. The sleeve type injector for firing the oil-gas producing layer is characterized in that the lower end of a spray gun body is connected with a spray gun seat through a thread; the lower end of the spray gun seat is provided with the thread; a slide sleeve is arranged in the spray gun body; and the outer diameter of the slide sleeve is equal to the inner diameter of the spray gun body. A pin is arranged between the slide sleeve and the spray gun body; screw holes are distributed on the spray gun body wall; and nozzles are fixed in the screw holes. The diameter of a central hole of the spray gun seat is equal to the largest outer diameter of the slide sleeve. The slide sleeve can slide in the spray gun seat. The sleeve type injector for firing the oil-gas producing layer has the effect of being capable of achieving the sand fracturing of prolific-layer oil-gas fixed tube strings when connected to a fracturing pipe column. With the suitable working pressure of 0-60MPa and the operating temperature of 0-90 DEG C, the sleeve type injector for firing the oil-gas producing layer is suitable for the four-year spraying and fracturing of 5 <1/2>'' and 7'' casings. By pitching and ballasting on an oil pipe, the pin is sheared off and the slide sleeve is shifted down; and by spraying high-pressure water flow from a nozzle, the sleeve pipe and the producing layer are fired. The sleeve type injector has simple structure and easy disassembly and assembly.
Description
Technical field
The utility model relates to the exploitation of oil-gas field field, and particularly successively pressure break, acidizing treatment of oil gas well is that a kind of tubing transmission pressure that utilizes penetrates high-pressure water jet from nozzle, penetrates out sleeve pipe and payzone, realizes the sleeve type ejector of target zone and oil jacket communication.
Background technology
Multilayered reservoir gas reservoir of Gas field, these gas reservoirs show more than the layer mostly and layer is thin, the individual layer production capacity is low, the gas field development benefit is low.For example in the river, the Xu Jia river group gas reservoir that extensively distributes of Chuan Nan, the Sha Xi mausoleum group gas reservoir of Chuan Xi, Peng Lai town group gas reservoir of shallow-layer.For this class reservoir, must implement separate stratum fracfturing in the vertical, at utmost mining-employed reserves.And, adopt conventional separate stratum fracfturing instrument to be difficult to realize to vertically going up the nearly sand fracturing more than 5 layers, jetting successively pressure break is the most effective construction technology that solves this difficult problem.
After the crucial step of conventional hydro-jet fracturing technology is exactly the intact one deck of pressure break, need band to press to carry tubing string to next target zone to carry out the pressure break second time.Because band presses the risk of carrying tubing string in gas well, can not realize that fixed tubular column carries out multiple fracturing, makes the jetting popularization of fracturing technology successively be restricted.
The utility model content
The purpose of this utility model is: a kind of sleeve type ejector that layer of oil gas production is used of penetrating out is provided, realize fixed tubular column jetting fracturing technology successively, can widen the jetting scope of application of fracturing technology successively, overcome to be with to press and put forward the deficiency that there is risk in tubing string.
The technical solution adopted in the utility model is: penetrate out the sleeve type ejector that layer of oil gas production is used, mainly be made up of spray gun seat, pin, spray gun body, sliding sleeve and nozzle, there is screw thread the upper end of spray gun body, can connect fracturing string.It is characterized in that: be connected with a spray gun seat at the lower end of spray gun body screw thread, there is screw thread the lower end of spray gun seat, can connect fracturing string.There is sliding sleeve inside at the spray gun body, and the external diameter of sliding sleeve is identical with the internal diameter of spray gun body.Between sliding sleeve and spray gun body, pin is arranged, sliding sleeve and spray gun body can be fixed together.On the spray gun body wall, be distributed with screw, be fixed with nozzle in the screw.The centre bore of spray gun seat is identical with the maximum outside diameter of sliding sleeve.Sliding sleeve can slide in the spray gun seat.
The profile of described nozzle is cylindrical, and the nozzle center hole is made up of inner segment, outer section and interlude, and the inner segment in nozzle center hole and outer section are conical bore, and interlude is cylindrical.
Described nozzle is distributed with 4～8 row, and two adjacent row nozzles are staggered up and down; Nozzle also can helical arrangement distribute.
In order to seal, between spray gun body and spray gun seat, the O V-shaped ring is arranged; The O V-shaped ring is arranged between spray gun body and sliding sleeve.
In order to seal, between pin and spray gun body, O-ring seals is arranged; Between nozzle and spray gun body, O-ring seals is arranged.
The beneficial effects of the utility model: the utility model is penetrated out the sleeve type ejector that layer of oil gas production is used, and is connected in the fracturing string, can realize that the motionless pipe of multilayered reservoir oil gas well serially adds the sand pressure break.Be fit to operating pressure 0～60MPa, 0～90 ℃ of operating temperature is fit to 5
1/
2", 7 " sleeve pipe sprays pressure break for four layers.Suppress from the oil pipe pitching, behind pressure rising certain value, cut off pin, sliding sleeve is displaced downwardly in the spray gun seat, for high-pressure water jet by open walk.High-pressure water jet penetrates from nozzle, penetrates out sleeve pipe and payzone.Nozzle has best runner, makes easier sleeve pipe and the payzone penetrated out of high-pressure water jet.This sleeve type ejector has characteristics simple in structure, quick detachable and assembling.
Description of drawings
Fig. 1 is that the utility model is penetrated out the sleeve type emitter construction generalized section that layer of oil gas production is used.
Among the figure, 1. spray gun seat, 2.O V-shaped ring, 3. pin, 4.O shape sealing ring, 5. spray gun body, 6. sliding sleeve, 7. nozzle.
The specific embodiment
Embodiment 1: with external diameter be 110 millimeters to penetrate out the sleeve type ejector that layer of oil gas production uses be example, the utility model is described in further detail.
Consult Fig. 1.The utility model is penetrated out the sleeve type ejector that layer of oil gas production is used, and mainly is made up of spray gun seat 1, pin 3, spray gun body 5, sliding sleeve 6 and nozzle 7.The external diameter of spray gun body 5 is 110 millimeters.There is screw thread the upper end of spray gun body 5, can connect fracturing string.Be connected with a columnar spray gun seat 1 at the lower end of spray gun body 5 screw thread, two O V-shaped rings 2 are arranged between spray gun body 5 and spray gun seat 1.There is screw thread the lower end of spray gun seat 1, can connect fracturing string.
In the inside of spray gun body 5 sliding sleeve 6 is arranged, the external diameter of sliding sleeve 6 (not being maximum outside diameter) is 60 millimeters with the internal diameter of spray gun body 5.Four O V-shaped rings 2 are arranged, each two of top and bottom between spray gun body 5 and sliding sleeve 6.Between sliding sleeve 6 and spray gun body 5, there are 3,3 pins 3 of 3 pins evenly to distribute.Pin 3 can be fixed together sliding sleeve 6 and spray gun body 5.An O-ring seals 4 is arranged between pin 3 and spray gun body 5.On spray gun body 5 walls, be distributed with screw, be fixed with a nozzle 7 in each screw.The profile of nozzle 7 is cylindrical, and nozzle 7 centre bores are made up of inner segment, outer section and interlude, and the inner segment of nozzle 7 centre bores and outer section are conical bore, and interlude is cylindrical.Nozzle 7 is distributed with 4 row, and two adjacent row nozzles 7 are staggered up and down.When from the ground pitching, the top that ball is fallen sliding sleeve 6 builds the pressure, and promotes sliding sleeve 6 and moves down, and the high pressure fracturing fluid in the tubing string can spray by nozzle 7.An O-ring seals 4 is arranged between nozzle 7 and spray gun body 5.
65 millimeters of the maximum outside diameters of the centre bore of spray gun seat 1 and sliding sleeve 6 ends.Sliding sleeve 6 can slide in spray gun seat 1.
Throw steel ball from oil pipe, heavy 30-50 minute of marquis suppresses from oil pipe, sets when opening pressure when pressure is elevated to sliding sleeve, cuts off inner sliding sleeve pin 3, and sliding sleeve 6 moves down, and exposes nozzle 7, realizes that oil jacket links up.Steel ball forms one-way sealing, guarantees that fluid penetrates from nozzle.
Operating pressure 60MPa, 90 ℃ of operating temperatures can realize that fixed tubular column carries out four layers continuously and sprays pressure break.
Instrument inner nozzle discharge coefficient is greater than 90%, is 6～8% at abrasive concentration, flow velocity reaches under the 200m/s operating mode mouth footpath rate of change less than 1%.Pump pressure is that 20MPa, flow are 17.00m
3/ h, abrasive concentration be 10%, when range is 8mm, erosion depth is the darkest, i.e. erosion efficient height is optimum range, pressure reduction is at 18～20MMPa.Abrasive concentration is 8%～10%, flow 14.2～15m
3/ s, the erosion time is 1.85h, the most deep degree of erosion tight sand is 1.14m.
Claims (6)
1, a kind ofly penetrate out the sleeve type ejector that layer of oil gas production is used, mainly by spray gun seat (1), pin (3), spray gun body (5), sliding sleeve (6) and nozzle (7) are formed, there is screw thread the upper end of spray gun body (5), it is characterized in that: the lower end screw thread at spray gun body (5) is connected with a spray gun seat (1), there is screw thread the lower end of spray gun seat (1), in the inside of spray gun body (5) sliding sleeve (6) is arranged, the external diameter of sliding sleeve (6) is identical with the internal diameter of spray gun body (5), between sliding sleeve (6) and spray gun body (5), pin (3) is arranged, on spray gun body (5) wall, be distributed with screw, be fixed with nozzle (7) in the screw, the centre bore of spray gun seat (1) is identical with the maximum outside diameter of sliding sleeve (6), and sliding sleeve (6) can slide in spray gun seat (1).
2, according to claim 1ly penetrate out the sleeve type ejector that layer of oil gas production is used, it is characterized in that: the profile of described nozzle (7) is cylindrical, nozzle (7) centre bore is made up of inner segment, outer section and interlude, the inner segment of nozzle (7) centre bore and outer section are conical bore, and interlude is cylindrical.
3, according to claim 1ly penetrate out the sleeve type ejector that layer of oil gas production is used, it is characterized in that: described nozzle (7) is distributed with 4～8 row, and two adjacent row nozzles (7) are staggered up and down.
4, according to claim 1ly penetrate out the sleeve type ejector that layer of oil gas production is used, it is characterized in that: nozzle (7) distributes with helical arrangement.
5, describedly penetrate out the sleeve type ejector that layer of oil gas production is used according to claim 1,2,3 or 4, it is characterized in that: between spray gun body (5) and spray gun seat (1), O V-shaped ring (2) is arranged; Between spray gun body (5) and sliding sleeve (6), O V-shaped ring (2) is arranged.
6, describedly penetrate out the sleeve type ejector that layer of oil gas production is used according to claim 1,2,3 or 4, it is characterized in that: between pin (3) and spray gun body (5), O-ring seals (4) is arranged; Between nozzle (7) and spray gun body (5), O-ring seals (4) is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920106105U CN201372786Y (en) | 2009-03-10 | 2009-03-10 | Sleeve type injector for firing oil-gas producing layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920106105U CN201372786Y (en) | 2009-03-10 | 2009-03-10 | Sleeve type injector for firing oil-gas producing layer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201372786Y true CN201372786Y (en) | 2009-12-30 |
Family
ID=41498867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920106105U Expired - Lifetime CN201372786Y (en) | 2009-03-10 | 2009-03-10 | Sleeve type injector for firing oil-gas producing layer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201372786Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103883293A (en) * | 2014-04-04 | 2014-06-25 | 中国石油大学(北京) | Hydraulic jet radial drilling and fracturing integrating method |
| CN104912535A (en) * | 2015-05-29 | 2015-09-16 | 中国石油天然气股份有限公司 | In-section multi-cluster fracturing slide sleeve |
| CN105604527A (en) * | 2016-02-26 | 2016-05-25 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Archimedes double-spiral division type hydraulic ejector |
-
2009
- 2009-03-10 CN CN200920106105U patent/CN201372786Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103883293A (en) * | 2014-04-04 | 2014-06-25 | 中国石油大学(北京) | Hydraulic jet radial drilling and fracturing integrating method |
| CN103883293B (en) * | 2014-04-04 | 2017-02-15 | 中国石油大学(北京) | Hydraulic jet radial drilling and fracturing integrating method |
| CN104912535A (en) * | 2015-05-29 | 2015-09-16 | 中国石油天然气股份有限公司 | In-section multi-cluster fracturing slide sleeve |
| CN104912535B (en) * | 2015-05-29 | 2017-09-01 | 中国石油天然气股份有限公司 | Many cluster fracturing sliding bushs in a kind of section |
| CN105604527A (en) * | 2016-02-26 | 2016-05-25 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Archimedes double-spiral division type hydraulic ejector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091230 |
|
| CX01 | Expiry of patent term |