CN202645526U - Jet flow sand blasting cracking device - Google Patents
Jet flow sand blasting cracking device Download PDFInfo
- Publication number
- CN202645526U CN202645526U CN 201220227040 CN201220227040U CN202645526U CN 202645526 U CN202645526 U CN 202645526U CN 201220227040 CN201220227040 CN 201220227040 CN 201220227040 U CN201220227040 U CN 201220227040U CN 202645526 U CN202645526 U CN 202645526U
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- fracturing equipment
- jet blasting
- blasting fracturing
- centralizer
- way valve
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Abstract
The utility model discloses a jet flow sand blasting cracking device which comprises a main body with an inner cavity and a nozzle installed on the lateral wall of the main body. The jet flow sand blasting cracking device is characterized in that a one-way valve communicated with the inner cavity is arranged at one end of the main body, and a centering guide is positioned on the periphery of the main body. The jet flow sand blasting cracking device has the advantages of being simple and reasonable in structure, convenient to operate, small in sand clamping risk and capable of reducing operation time and cost and effectively improving construction success rate.
Description
Technical field
The utility model belongs to the underground work technical field in oil and gas exploitation field, particularly relates to a kind of jet blasting fracturing equipment.
Background technology
The jet blasting fracturing equipment is a kind of well production increment development operation instrument.This tool set waterpower well-flushing, perforation, pressure break, acidifying, anti-flushing well are applicable to the complicated hole condition such as casing deformation well, screen casing well, perforated hole, bushing pipe well in one.In operation, utilize working string that the jet blasting fracturing equipment is lowered into assigned address, high-pressure abrasive material liquid penetrates at a high speed through the jet blasting fracturing equipment, forms the duct of definite shape in the stratum; Then infusion high pressure mulling liquid in the well is so that the duct front end produces the crack.Gap, the liquid-filled crack of mulling, and it is extended to the earth formation deep expansion.Because the sand packing process in the mulling liquid has also supported formation fracture, has improved the permeability of petroleum reservoir, thereby increase Oil/gas Well output.This volume increase process is simple, and duty cycle is short, and is little to reservoir damage, and is applicable to multiple hole condition, has therefore obtained than extensive use in the frscturing operation.
Patent application CN200920079056.5 discloses a kind of downhole hydraulic and has sprayed the fracture acidizing tool tubular column.This tool tubular column is given up by guide head, screen casing, one way valve, lower centralizer, spray gun, upper centralizer and safety and is formed, and each several part is in turn connected into integral body.Enter in tubing string and the wellbore annulus when the grains of sand in the mulling liquid are subjected to construction infection, sand grains just can landfill hydraulic jetting fracturing acidifying tool tubular column, can't the upper lifting pipe post, cause sand card tubing string.Need this moment to clean sand grains to working string and oil well annular space filling liquid, liquid carries that the grains of sand are inner through screen casing, one way valve, lower centralizer, spray gun, upper centralizer and give up safely and enter working string, returns out ground.Because this hydraulic jetting fracturing acidifying tool tubular column is comprised of 7 parts, there is the halfway problem of cleaning in the tool pipe column length, and increases the risk of sand card.When tubing string can't propose, can only give up by safety broke away from tool tubular column and working string, and tool tubular column places the down-hole, has a strong impact on the production operation of Oil/gas Well later stage, even can cause scrapping of Oil/gas Well.
Patent application CN200810232699.9 discloses a kind of single upper seal sand blasting perforation fracturing technology, and this technology can realize the acid fracturing transformation to Oil/gas Well, and fracturing string comprises oil pipe, hydraulic anchor, packer, hydraulic ejector, back flow protection device.This technology composition number of components is many, and tubing string is long, and packer and hydraulic anchor are easy to the sand card, so that tubing string sand card risk increases.
Patent application CN201020687354.5 discloses a kind of sand blasting perforator, and this patent has been simplified down-hole sand blasting perforator structure, but this sand blasting perforator does not have centralizer, can not guarantee the perforation precision, does not have simultaneously the backwash passage, is difficult to solve sand card problem.
Existing jet blasting fracturing equipment exists following defective: the building block of the operating tool string of jet blasting fracturing equipment is many, and tubing string is long, causes tubing string to be easy to occur the sand card and is stranded in the well, even can cause scrapping of Oil/gas Well.In addition, the building block of jet blasting fracturing equipment is many, causes the instrument cost high.
The utility model content
For the deficiencies in the prior art, the utility model provides a kind of jet blasting fracturing equipment, has advantage simple in structure, easy and simple to handle, as to be difficult for sand card and low cost of manufacture.
The utility model provides a kind of jet blasting fracturing equipment, comprise the nozzle in the body with inner chamber and the sidewall that is installed in described body, end at described body is provided with the one way valve that is communicated with described inner chamber, and is provided with centralizer in the periphery of described body.
In above-mentioned jet blasting fracturing equipment, be provided with respectively a centralizer at the place, two ends of described body.Centralizer can make the jet blasting fracturing equipment go into the well and pressing crack construction process in keep placed in the middle.
In above-mentioned jet blasting fracturing equipment, each described centralizer is provided with 5 ~ 7 wiper blocks that distribute along even circumferential.In a concrete example, each described centralizer is provided with 6 wiper blocks.
In above-mentioned jet blasting fracturing equipment, described one way valve comprises the circulation passage that extends longitudinally and along the backwash hole that extends laterally, is used for realizing the anti-flushing well operation.In a concrete example, described one way valve is provided with 2 ~ 6 backwash holes that distribute along even circumferential.
In above-mentioned jet blasting fracturing equipment, the lower end of described one way valve is back taper, is used for realizing guide function.
In above-mentioned jet blasting fracturing equipment, be provided with the joint that links to each other for working string at the other end of described body.
The jet blasting fracturing equipment that provides according to the utility model, the comprehensive unidirectional unlatching of one way valve wherein, backwash and three kinds of functions of guiding, can guide the jet blasting fracturing equipment to go into the well smoothly, can carry out the anti-flushing well operation, shorten jet blasting fracturing equipment length, the sand card risk when reducing the use of jet blasting fracturing equipment; Jet blasting fracturing equipment body and centralizer combine together and carry out optimal design, can play the effect of stablizing the jet blasting fracturing equipment and guaranteeing perforating quality, and can further shorten jet blasting fracturing equipment length.
The jet blasting fracturing equipment that provides according to the utility model build, has advantage simple and reasonable, easy and simple to handle, that sand card risk is little, can reduce activity duration and cost, and after the pressing crack construction success, fracturing string can be proposed smoothly, do not hinder the production operation of Oil/gas Well later stage, Effective Raise be constructed into power.
Description of drawings
Fig. 1 has shown the jet blasting fracturing equipment structural representation according to an embodiment of the present utility model;
Schematic diagram when Fig. 2 has shown according to the jet blasting fracturing equipment application of an embodiment of the present utility model.
The specific embodiment
Fig. 1 has shown the jet blasting fracturing equipment structural representation according to an embodiment of the present utility model.This jet blasting fracturing equipment 20 comprises the body 3 with inner chamber 12 and is installed in nozzle 4 in the sidewall of described body, is provided with the one way valve 1 that is communicated with described inner chamber at an end of described body 3, is provided with centralizer in the periphery of described body 3.The number of described nozzle 4 is 6, arranges in two separate ranks 60 ° of nozzle 4 phase place angles.Place, two ends at described body 3 is provided with respectively a centralizer, i.e. centralizer 5 and centralizer 2.Be respectively equipped with 6 wiper block (not shown)s that distribute along even circumferential on centralizer 5 and the centralizer 2.Centralizer 5 and centralizer 2 can be that machining forms on body 3, also can be welded on the body 3, thereby can shorten jet blasting fracturing equipment entire length and reduce sand card risk.Described one way valve 1 comprises the circulation passage 6 that extends longitudinally and along the backwash hole 7 that extends laterally, is used for carrying out the anti-flushing well operation.Totally 4 of the numbers in described backwash hole 7 are along the even circumferential distribution of one way valve 1.The lower end of described one way valve 1 is back taper.Also has the valve ball 8 of realizing the one-way sealing function in the described one way valve 1.The other end of described body 3 is provided with for the joint 9 that links to each other with working string.
Schematic diagram when Fig. 2 has shown according to the jet blasting fracturing equipment application of an embodiment of the present utility model.Described jet blasting fracturing equipment 20 is connected with tubing string 10 by the top connection 9 that is located thereon.By tubing string 10 with jet blasting fracturing equipment 20 in pit shaft 11 lower going-into-wells.In being lowered to process, guide effect is played in the back taper lower end of one way valve 1, can make jet blasting fracturing equipment 20 enter smoothly well.After jet blasting fracturing equipment 20 was lowered into assigned address, the high pressure mulling liquid that injects from ground flow to the inner chamber 12 of jet blasting fracturing equipment body 3 by working string 10.Because the one-way sealing effect of the valve ball 8 in the one way valve 1, high pressure mulling liquid can only penetrate through nozzle 4 speedups.Mulling liquid is injected in the formation fracture, and gap, filling crack also makes the crack extend to far-end, reaches Effective Raise reservoir output purpose.
Part sand grains in mulling liquid is subjected to construction infection to enter the annular space of working string 10 and pit shaft 11, this moment can be to the annular space filling liquid, under liquid effects, valve ball 8 in the one way valve 1 will open wide, liquid will carry sand grains enters jet blasting fracturing equipment body 3 through side direction backwash hole 7 and one way valve passage 6 inner chamber 12 and working string 10 inner chambers, return out ground, thereby solve sand card problem.
The above only is preferred embodiment of the present utility model; but the utility model protection domain is not limited to this; any those skilled in the art is in the disclosed technical scope of the utility model; can change at an easy rate or change, and this change or variation all should be encompassed within the protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claims.
Claims (8)
1. jet blasting fracturing equipment, comprise the nozzle in the body with inner chamber and the sidewall that is installed in described body, it is characterized in that, be provided with the one way valve that is communicated with described inner chamber at an end of described body, and be provided with centralizer in the periphery of described body.
2. jet blasting fracturing equipment according to claim 1 is characterized in that, is provided with respectively a centralizer at the place, two ends of described body.
3. jet blasting fracturing equipment according to claim 1 and 2 is characterized in that, each described centralizer is provided with 5 ~ 7 wiper blocks that distribute along even circumferential.
4. jet blasting fracturing equipment according to claim 3 is characterized in that, each described centralizer is provided with 6 wiper blocks.
5. jet blasting fracturing equipment according to claim 1 and 2 is characterized in that, described one way valve comprises the circulation passage that extends longitudinally and along the backwash hole that extends laterally.
6. jet blasting fracturing equipment according to claim 5 is characterized in that, described one way valve is provided with 2 ~ 6 backwash holes that distribute along even circumferential.
7. jet blasting fracturing equipment according to claim 1 and 2 is characterized in that, the lower end of described one way valve is back taper.
8. jet blasting fracturing equipment according to claim 1 and 2 is characterized in that, is provided with the joint that links to each other for working string at the other end of described body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220227040 CN202645526U (en) | 2012-05-18 | 2012-05-18 | Jet flow sand blasting cracking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220227040 CN202645526U (en) | 2012-05-18 | 2012-05-18 | Jet flow sand blasting cracking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202645526U true CN202645526U (en) | 2013-01-02 |
Family
ID=47414648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220227040 Expired - Lifetime CN202645526U (en) | 2012-05-18 | 2012-05-18 | Jet flow sand blasting cracking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202645526U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104110239A (en) * | 2014-07-08 | 2014-10-22 | 中国石油天然气股份有限公司 | Sand adding and mixing device |
| CN105773440A (en) * | 2016-05-27 | 2016-07-20 | 东莞市叁益机械科技有限公司 | Wet-type sand-blasting gun |
| CN106321030A (en) * | 2015-07-02 | 2017-01-11 | 中国石油化工股份有限公司 | Combined operating device for perforating and sand fracturing |
| CN106703774A (en) * | 2015-11-18 | 2017-05-24 | 中国石油化工股份有限公司 | Drag hydraulic jet fracturing and ball casting slide bushing sand washing integrated operation device and method |
-
2012
- 2012-05-18 CN CN 201220227040 patent/CN202645526U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104110239A (en) * | 2014-07-08 | 2014-10-22 | 中国石油天然气股份有限公司 | Sand adding and mixing device |
| CN104110239B (en) * | 2014-07-08 | 2016-08-24 | 中国石油天然气股份有限公司 | Add sand mixing device |
| CN106321030A (en) * | 2015-07-02 | 2017-01-11 | 中国石油化工股份有限公司 | Combined operating device for perforating and sand fracturing |
| CN106321030B (en) * | 2015-07-02 | 2018-12-28 | 中国石油化工股份有限公司 | Make device for perforation and the connection of sand fracturing |
| CN106703774A (en) * | 2015-11-18 | 2017-05-24 | 中国石油化工股份有限公司 | Drag hydraulic jet fracturing and ball casting slide bushing sand washing integrated operation device and method |
| CN106703774B (en) * | 2015-11-18 | 2018-12-28 | 中国石油化工股份有限公司 | Drawing type hydraulic jetting fracturing and pitching sliding sleeve sand washing connection make device and method |
| CN105773440A (en) * | 2016-05-27 | 2016-07-20 | 东莞市叁益机械科技有限公司 | Wet-type sand-blasting gun |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130102 |