CN103422845A - Y-type reducing dual-channel high-pressure acidizing and fracturing well head device - Google Patents
Y-type reducing dual-channel high-pressure acidizing and fracturing well head device Download PDFInfo
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- CN103422845A CN103422845A CN2013102383738A CN201310238373A CN103422845A CN 103422845 A CN103422845 A CN 103422845A CN 2013102383738 A CN2013102383738 A CN 2013102383738A CN 201310238373 A CN201310238373 A CN 201310238373A CN 103422845 A CN103422845 A CN 103422845A
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Abstract
The invention relates to a Y-type reducing dual-channel high-pressure acidizing and fracturing well head device. In order to improve the connectivity in stratums, people usually improve yield through downhole acidizing and fracturing. According to the Y-type reducing dual-channel high-pressure acidizing and fracturing well head device, a Y-type reducing cross is arranged between main channel gate valves and wing valves and is provided with an upper outlet, a lower outlet, a left outlet and a right outlet, the left outlet and the right outlet are symmetrically arranged on two sides of the upper outlet and the lower outlet, the left outlet and the right outlet are provided with a buffering bended pipe respectively, and the upper outlet and the lower outlet are connected with the main channel gate valves. According to the Y-type reducing dual-channel high-pressure acidizing and fracturing well head device, the combination of the processes of acidizing and fracturing is achieved, the working efficiency is improved, and the labor intensity is reduced. The Y-type reducing dual-channel high-pressure acidizing and fracturing well head device has the advantages of being reasonable and compact in structural design, good in sealing performance, safe, reliable, convenient to operate, low in labor intensity and long in service life.
Description
Technical field
The invention belongs to the field produces technical field.Be specially a kind of Y type reducing binary channels heavy pressure acidizing fracturing wellhead assembly, particularly a kind of Y type reducing binary channels heavy pressure acidizing fracturing wellhead assembly that acidifying and pressure break two kinds of techniques merging, suitable geologic structures different with ocean on land is carried out to acidifying and fracturing work.
Background technology
In the actual production process of oil field, low to formation pore, permeability is low and the well head that yields poorly, usually adopt the acid fracturing well head device to carry out acidifying to well head or fracturing work improves output.And sometimes carry out post-fracturing well head, and due to the poor connectivity in crack in stratum, also cause output not high, must again to well head, carry out acidizing treatment, improve the connectedness in stratum, improve output with this.In producing at the scene, technique is loaded down with trivial details, and operating personnel's labour intensity is large, and cost is high, and output is not high, is insoluble problem all the time in oilfield process.Therefore, invention is designed and a kind of two kinds of techniques of acidifying and pressure break is merged, and on land, the geologic structure different with ocean can both normal operation, can increase production again, simultaneously can be cost-saving, and be to produce and the problem of applying unit common need solution.
Summary of the invention
In order to realize that two kinds of techniques of acidifying and pressure break merge, the suitable geologic structure different with ocean on land carried out acidifying and fracturing work, reduces operating personnel's labour intensity, cost-saving, improve output, the invention provides a kind of Y type reducing binary channels heavy pressure acidizing fracturing wellhead assembly.
To achieve these goals, the present invention takes following technical scheme to implement: a kind of Y type reducing binary channels heavy pressure acidizing fracturing wellhead assembly, it includes acid fracturing tubing string, surface pipe, pressure break four-way, union flange, tubing string double male joint, cover sluice valve, thread flange, pressure meter assembly, hanger, jackscrew, gasket ring, hanger neck seal cushion rubber, upper flange, main latus rectum gate valve, Y type reducing cross, buffering bend pipe, flutter valve, union flange, thread flange, pressure meter assembly, connecting bolt and secondary seal BT circle.Y type reducing cross is provided with up and down, the outlet of four of left and right, upper and lower two outlets form the main channel of this device, left and right two outlets form the by-pass of this device, left and right two outlets are symmetrical connection buffering bend pipe, two flutter valves and union flange respectively, the buffering bend pipe of both sides is for alleviating acidifying solution or of the fracturing fluid pressure, the injection rate of accelerating liquid; Upper outlet connects main latus rectum gate valve, thread flange and a pressure meter assembly successively, and the pressure meter assembly is used for the observation well mouth pressure to be changed.Lower outlet connects two main latus rectum gate valves, upper flange and pressure break four-ways successively.Hanger is setting on the shoulder of pressure break four-way inner chamber, the conical surface of hanger and the laminating of the jackscrew head conical surface, tighten jackscrew, jackscrew pushes hanger downwards, the shoulder contact surface that guarantees hanger and pressure break four-way inner chamber contacts firmly, and down-hole is stretched in the lower end that the acid fracturing tubing string is connected to hanger by the tubing string double male joint.The hanger neck is provided with the seal groove of putting into hanger neck seal cushion rubber, and the hanger neck is inserted in the inner chamber of upper flange, by hanger neck seal cushion rubber and the upper flange inner chamber that is contained in the hanger neck, carries out effective sealing.Between the upper flanges plane of upper flange and pressure break four-way, gasket ring is housed, by the fastening compression of connecting bolt, thereby becomes an annular space upper flange, gasket ring, pressure break four-way and hanger neck are airtight.When from by-pass, Y type reducing cross left and right sides entrance union flange to well head, injecting acidifying solution or fracturing fluid; the flow through center-aisle of hanger of acidifying solution or fracturing fluid flows into down-hole; thereby protected gasket ring acid and alkali liquid or of the fracturing fluidly washed away and corrode, having guaranteed the safe and reliable sealing of well head.The both sides of pressure break four-way are provided with two outlets in left and right, and the right side outlet of pressure break four-way connects two cover sluice valves and a union flange successively; The left side outlet of pressure break four-way connects two cover sluice valves, thread flange, pressure meter assembly successively, the pressure meter assembly is used for observation well muzzle pipe pressure to be changed, as meet the special circumstances generation, can inject well killing fluid protection well head in pit shaft by the union flange-interface on right side; The lower end of pressure break four-way is connected with the Oil Field wellhead equipment.
The invention has the advantages that: realize that two kinds of techniques of acidifying and pressure break merge, the suitable geologic structure different with ocean on land, utilize the reducing binary channels to carry out acidifying and fracturing work, with the buffering bend pipe, alleviate acidifying solution or of the fracturing fluid pressure, the injection rate of accelerating liquid; Principle is novel, reasonable in design is compact, good seal performance, safe and reliable, easy to operate, labour intensity is low, effectively increase output, long service life.
The accompanying drawing explanation
Accompanying drawing 1 is a kind of Y type of the present invention reducing binary channels heavy pressure acidizing fracturing wellhead assembly structural representation.
Accompanying drawing 2 is A enlarged drawing in accompanying drawing 1.
In accompanying drawing, 1 acid fracturing tubing string, 2 surface pipes, 3 pressure break four-ways, 4 union flange M, 5 tubing string double male joints, 6 cover sluice valve N, 7 thread flange R, 8 pressure meter assembly B, 9 hangers, 10 jackscrews, 11 gasket rings, 12 hanger neck seal cushion rubbers, 13 upper flanges, 14 main latus rectum gate valve H, 15Y type reducing cross, 16 buffering bend pipes, 17 flutter valve F, 18 union flange D, 19 thread flange T, 20 pressure meter assembly C, 21 connecting bolts, 22 secondary seal BT circles
A is pressure break four-way part-structure signal enlarged drawing.
The specific embodiment
The present invention is a kind of Y type reducing binary channels heavy pressure acidizing fracturing wellhead assembly.As shown in drawings, Y type reducing cross 15 is provided with up and down, the outlet of four of left and right, and left and right two outlets are provided with upper and lower two and export in angle of 45 degrees; The diameter of left and right two outlets is less than the diameter of upper and lower two outlets; Upper and lower two outlets form acidifying or the pressure break main channel of this device, and left and right two outlets form acidifying or the pressure break by-pass of this device.Left and right two outlets are a symmetrical buffering bend pipe 16, two flutter valve F17 and the union flange D18 of connecting respectively, and the buffering bend pipe is provided with 135 degree angles; Upper outlet connects main latus rectum gate valve H14, a thread flange T19 and pressure meter assembly C20 successively, and lower outlet connects two main latus rectum gate valve H14, upper flange 13 and pressure break four-ways 3 successively.The runner bore dia of main latus rectum gate valve H14 is greater than the runner bore dia of flutter valve F17.Hanger 9 is setting on the shoulder of pressure break four-way 3 inner chambers, the conical surface of hanger 9 and jackscrew 10 head conical surface laminatings, tighten jackscrew 10, jackscrew 10 is extruding hanger 9 downwards, the shoulder contact surface that guarantees hanger 9 and pressure break four-way 3 inner chambers contacts firmly, and down-hole is stretched in the lower end that acid fracturing tubing string 1 is connected to hanger 9 by tubing string double male joint 5.Hanger 9 necks are provided with the seal groove of putting into hanger neck seal cushion rubber 12, hanger neck seal cushion rubber 12 is packed in described seal groove, hanger 9 necks are inserted in the inner chamber of upper flange 13, by hanger neck seal cushion rubber 12 and upper flange 13 inner chambers that are contained in hanger 9 necks, carry out effective sealing.Between the upper flanges plane of upper flange 13 and pressure break four-way 3, gasket ring 11 is housed, tightens by connecting bolt 21 is fastening, thereby become an annular space upper flange 13, gasket ring 11, pressure break four-way 3 and hanger 9 necks are airtight.The both sides of pressure break four-way 3 are provided with two outlets in left and right, and the diameter of two outlets in left and right is less than the diameter of upper and lower, four outlets in left and right of Y type reducing cross 15; The left side outlet of pressure break four-way 3 is connected with two cover sluice valve N6, thread flange R7, pressure meter assembly B8 in turn; The right side outlet of pressure break four-way 3 is connected with two cover sluice valve N6 and 1 union flange M4 in turn; The runner bore dia of cover sluice valve N6 is less than the runner bore dia of main latus rectum gate valve H14 and the runner bore dia of flutter valve F17.The lower end endoporus of pressure break four-way 3 is provided with the seal groove of putting into secondary seal BT circle 22, secondary seal BT circle 22 is packed in described seal groove, surface pipe 2 inserts in the lower end endoporus of pressure break four-way 3, by the effective sealing between secondary seal BT circle 22 endoporus of the lower end at pressure break four-way 3 and surface pipe 2, realize that the present invention is connected with the Oil Field wellhead equipment.
Claims (3)
1. a Y type reducing binary channels heavy pressure acidizing fracturing wellhead assembly, it includes acid fracturing tubing string, surface pipe, pressure break four-way, union flange, tubing string double male joint, cover sluice valve, thread flange, pressure meter assembly, hanger, jackscrew, gasket ring, hanger neck seal cushion rubber, upper flange, main latus rectum gate valve, flutter valve, union flange, thread flange, pressure meter assembly, connecting bolt and secondary seal BT circle; Hanger is setting on the shoulder of pressure break four-way inner chamber, the conical surface of hanger and the laminating of the jackscrew head conical surface, jackscrew pushes hanger downwards, down-hole is stretched in the lower end that the acid fracturing tubing string is connected to hanger by the tubing string double male joint, the hanger neck is provided with the seal groove of putting into hanger neck seal cushion rubber, the hanger neck is inserted in the inner chamber of upper flange, between the upper flanges plane of upper flange and pressure break four-way, gasket ring is housed; It is characterized in that between main latus rectum gate valve, flutter valve being provided with a Y type reducing cross, Y type reducing cross is provided with up and down, the outlet of four of left and right, and left and right two outlets are symmetrically distributed in the both sides of upper and lower two outlets, and left and right two outlets are in vertical direction with 45 degree angles; Left and right two outlets respectively are provided with a buffering bend pipe, and the other end of buffering bend pipe is connecting flutter valve, union flange successively; Upper outlet connects main latus rectum gate valve, thread flange, pressure meter assembly successively, and lower outlet connects main latus rectum gate valve, upper flange, pressure break four-way successively.
2. a kind of Y type reducing binary channels heavy pressure acidizing fracturing wellhead assembly as claimed in claim 1 is characterized in that: the diameters of described left and right two outlets are less than the diameters of described upper and lower two outlets.
3. a kind of Y type reducing binary channels heavy pressure acidizing fracturing wellhead assembly as claimed in claim 1, between two parts of buffering bend pipe, angle is designed to 135 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102383738A CN103422845A (en) | 2013-06-16 | 2013-06-16 | Y-type reducing dual-channel high-pressure acidizing and fracturing well head device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102383738A CN103422845A (en) | 2013-06-16 | 2013-06-16 | Y-type reducing dual-channel high-pressure acidizing and fracturing well head device |
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| CN103422845A true CN103422845A (en) | 2013-12-04 |
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| CN2013102383738A Pending CN103422845A (en) | 2013-06-16 | 2013-06-16 | Y-type reducing dual-channel high-pressure acidizing and fracturing well head device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105221130A (en) * | 2014-06-19 | 2016-01-06 | 姜金维 | A kind of super-pressure, large discharge, combined type fracture manifold |
| CN106812515A (en) * | 2015-12-02 | 2017-06-09 | 中国石油天然气股份有限公司 | A subassembly for coiled tubing staged fracturing |
| CN108758133A (en) * | 2018-06-11 | 2018-11-06 | 如皋天安电气科技有限公司 | A kind of polytetrafluoroethylene (PTFE) enhanced type spirotallic gasket |
| CN111894514A (en) * | 2020-08-31 | 2020-11-06 | 江苏宏泰石化机械有限公司 | Compact ultrahigh pressure oil (gas) production wellhead device |
| CN114102535A (en) * | 2021-12-17 | 2022-03-01 | 盐城金龙达机械制造有限公司 | Maintenance tool for valve body maintenance and use method thereof |
| CN116044365A (en) * | 2023-03-31 | 2023-05-02 | 江苏孚杰高端装备制造(集团)股份有限公司 | Multi-form valve combined type fracturing tree assembly device |
| CN116517504A (en) * | 2023-06-05 | 2023-08-01 | 建湖县鸿达阀门管件有限公司 | Large-caliber gas injection and production wellhead device |
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| US6899172B2 (en) * | 2003-06-03 | 2005-05-31 | Mcleod Roderick D. | Abrasion resistant frac head |
| US20070187087A1 (en) * | 2004-11-02 | 2007-08-16 | Stinger Wellhead Protection, Inc. | Fracturing head with replaceable inserts for improved wear resistance and method of refurbishing same |
| WO2006091302B1 (en) * | 2005-02-18 | 2007-08-30 | Fmc Technologies | Fracturing isolation sleeve |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105221130A (en) * | 2014-06-19 | 2016-01-06 | 姜金维 | A kind of super-pressure, large discharge, combined type fracture manifold |
| CN106812515A (en) * | 2015-12-02 | 2017-06-09 | 中国石油天然气股份有限公司 | A subassembly for coiled tubing staged fracturing |
| CN108758133A (en) * | 2018-06-11 | 2018-11-06 | 如皋天安电气科技有限公司 | A kind of polytetrafluoroethylene (PTFE) enhanced type spirotallic gasket |
| CN111894514A (en) * | 2020-08-31 | 2020-11-06 | 江苏宏泰石化机械有限公司 | Compact ultrahigh pressure oil (gas) production wellhead device |
| CN111894514B (en) * | 2020-08-31 | 2024-04-02 | 江苏宏泰石化机械有限公司 | Compact ultrahigh pressure oil extraction wellhead device |
| CN114102535A (en) * | 2021-12-17 | 2022-03-01 | 盐城金龙达机械制造有限公司 | Maintenance tool for valve body maintenance and use method thereof |
| CN114102535B (en) * | 2021-12-17 | 2024-03-29 | 浙江贝尔控制阀门有限公司 | Maintenance tool for valve body maintenance and use method thereof |
| CN116044365A (en) * | 2023-03-31 | 2023-05-02 | 江苏孚杰高端装备制造(集团)股份有限公司 | Multi-form valve combined type fracturing tree assembly device |
| CN116517504A (en) * | 2023-06-05 | 2023-08-01 | 建湖县鸿达阀门管件有限公司 | Large-caliber gas injection and production wellhead device |
| CN116517504B (en) * | 2023-06-05 | 2023-11-21 | 建湖县鸿达阀门管件有限公司 | Large-caliber gas injection and production wellhead device |
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Inventor after: Ding Weilong Inventor after: Ding Pengcheng Inventor before: Ding Weilong Inventor before: Ding Pengcheng Inventor before: Li Cheng |
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Free format text: CORRECT: INVENTOR; FROM: JI HONGBING CHEN ZHE CENG HUI TO: JI HONGBING CHEN ZHE |
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Application publication date: 20131204 |