CN2825929Y - Wellhead device for oil-water well fracturing construction - Google Patents
Wellhead device for oil-water well fracturing construction Download PDFInfo
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- CN2825929Y CN2825929Y CN 200520092297 CN200520092297U CN2825929Y CN 2825929 Y CN2825929 Y CN 2825929Y CN 200520092297 CN200520092297 CN 200520092297 CN 200520092297 U CN200520092297 U CN 200520092297U CN 2825929 Y CN2825929 Y CN 2825929Y
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Abstract
The utility model relates to a well head device for the fracturing construction of an oil-water well, which is used for process measures, such as the fracturing, the acidification, etc. of the oil-water well of an oil field, and the well head device is composed of a press disk 1, a press cap 2, a main short joint 3, a liquid feeding valve 4, a ball injector 5, a small four-way 6, an emptying valve 7, a main control valve 8 and a big four-way 9, wherein the press disk 1 is based above the big four-way 9 and is connected and fixed with the big four-way 9 through a screw bolt, and the press cap 2 is arranged on the main short joint 3 above the pressure disk 1, wherein the main control valve 8, the liquid feeding valve 4 and the emptying valve 7 all adopt a parallel gate valve. The well head device has the advantages of small size, light weight, convenient installation and reliable seal, the opening and closing force moment of a valve is small, a sealing member of a valve rod can be changed in the state of pressure and a pipe line is easy to sweep. The well head device is suitable for working mediums, such as crude oil, mortar, dilute hydrochloric acid, etc., has the advantages of long service life, small maintenance workload, safe operation, etc., and is suitable for being popularized and applied in the fracturing and acidifying construction of the oil-water well.
Description
Technical field:
The utility model relates to a kind of wellhead assembly that is used for technological measure operations such as oilfield oil well pressure break, acidifying.
Background technology:
Along with the prolongation of oilfield development process and production time, technological measure workloads such as fracture in oil and water wells, acidifying increase day by day.At present, the on-the-spot lightweight fracture well head that when carrying out fracture in oil and water wells, acidizing treatment, adopts usually, result of use is fair, but along with the increase of construction times, its weak point shows especially day by day, because existing wellhead assembly main control valve, feed liquor valve, atmospheric valve are and execute plug valve, parts often damage, and maintenance difficult, and application life is short.In addition, because structure is limit, this device is opened very difficult under artesian condition, influences the progress and the efficient of construction operation.
Summary of the invention:
The purpose of this utility model is to provide the fracture in oil and water wells construction wellhead assembly of a kind of easy to install, sealing, reliable operation, long service life.
The utility model is to realize like this.This kind wellhead assembly is made up of platen, pressure cap, main short circuit, feed liquor valve, main control valve, atmospheric valve, ball injector, little four-way, big four, and big four top seat is placed with platen, and is attached thereto fixingly with bolt, and the main short circuit in platen top is provided with pressure cap; Main short circuit upper end is connected with main control valve with screw thread, and the lower end places in the big four and with tubing hanger and is connected; The main control valve top is connected with little four-way by short circuit, and little four-way left and right side has feed liquor valve and atmospheric valve by the short circuit tipping respectively, and there is ball injector the top with the screw thread tipping.Before the fracture in oil and water wells construction, this wellhead assembly is installed in treats on the operation well head.And be connected with tubing hanger; With feed liquor valve and pressure break ground and pipeline connects, close atmospheric valve, open main control valve; In well, irritate liquid level by the oil well casing valve, close sleeve valve after filling is good and carry out pressing crack construction.During pressing crack construction, fracturing fluid enters this wellhead assembly by the feed liquor valve, and the little four-way of flowing through, main control valve, main short circuit, big four enter in the down-hole oil tube, and the predetermined down-hole oil reservoir of design scheme is implemented pressure break or acidifying.After construction finishes, close main control valve,, use again when supplying subjob down by this device being disassembled behind the surplus pressure in the atmospheric valve release well.In work progress, highly pressurised liquid is limited in this wellhead assembly and the down-hole oil tube, and the former oil recovery four-way part of oil well is not born high pressure, plays the effect of protection well head; The effect one of platen is to guarantee well head installation steadiness, the 2nd, and balance guarantees the sealing of tubing hanger from the last top power of condition of high voltage lower tubular column.
The utility model volume is little, in light weight, easy for installation, sealing is reliable, and valve switch moment is little, and can change valve rod sealing member under the band pressure condition, be easy to clean pipeline, this wellhead assembly is applicable to working medias such as crude oil, mortar, watery hydrochloric acid, has advantages such as long service life, maintenance amount be little, safe and reliable, is suitable in fracture in oil and water wells, acidizing treatment and applies.
Description of drawings:
Accompanying drawing is a general structure schematic diagram of the present utility model.Among the figure, label " 10 " is the Casing Failure valve.
The specific embodiment:
Below in conjunction with accompanying drawing enforcement of the present utility model is illustrated.
As shown in the figure, the utility model is made up of platen 1, pressure cap 2, main short circuit 3, feed liquor valve 4, ball injector 5, little four-way 6, atmospheric valve 7, main control valve 8 and big four 9, its structure, assembled relation are as follows: big four 9 top seats are placed with platen 1 and are attached thereto fixingly with bolt, and the main short circuit 3 in platen 1 top is provided with pressure cap 2; Main short circuit 3 upper ends are connected with main control valve 8 with screw thread, and the lower end places in the big four 9 and with tubing hanger and is connected; Main control valve 8 tops are connected with little four-way 6 by short circuit, and little four-way 6 left and right sides have feed liquor valve 4 and atmospheric valve 7 by the short circuit tipping respectively, and there is ball injector 5 top with the screw thread tipping.Wherein, platen 1 adopts the flange that size, specification, bolt hole and big four 9 are complementary.Feed liquor valve 4, atmospheric valve 7, main control valve 8 all adopt and seal reliably, switch is flexible, the little run-in index slide valve of liquid resistance coefficient.
Claims (2)
1, a kind of fracture in oil and water wells construction wellhead assembly, form by platen (1), pressure cap (2), main short circuit (3), feed liquor valve (4), ball injector (5), little four-way (6), atmospheric valve (7), main control valve (8) and big four (9), it is characterized in that: big four (9) top seat is placed with platen (1) and is attached thereto fixingly with bolt, and platen (1) the main short circuit in top (3) is provided with pressure cap (2); Main short circuit (3) upper end is connected with main control valve (8) with screw thread, and the lower end places in the big four (9) and with tubing hanger and is connected; Main control valve (8) top is connected with little four-way (6) by short circuit, and little four-way (6) left and right side has feed liquor valve (4) and atmospheric valve (7) by the short circuit tipping respectively, and there is ball injector (5) top with the screw thread tipping.
2, fracture in oil and water wells construction wellhead assembly according to claim 1 is characterized in that: feed liquor valve (4), atmospheric valve (7), main control valve (8) all adopt and seal reliably, switch is flexible, the little run-in index slide valve of liquid resistance coefficient.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520092297 CN2825929Y (en) | 2005-08-27 | 2005-08-27 | Wellhead device for oil-water well fracturing construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520092297 CN2825929Y (en) | 2005-08-27 | 2005-08-27 | Wellhead device for oil-water well fracturing construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2825929Y true CN2825929Y (en) | 2006-10-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520092297 Expired - Fee Related CN2825929Y (en) | 2005-08-27 | 2005-08-27 | Wellhead device for oil-water well fracturing construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2825929Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103306655A (en) * | 2013-05-29 | 2013-09-18 | 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 | Staged fracturing method adopting under-pressure dragging |
| CN103422845A (en) * | 2013-06-16 | 2013-12-04 | 盐城金龙达机械制造有限公司 | Y-type reducing dual-channel high-pressure acidizing and fracturing well head device |
| CN103470239A (en) * | 2013-08-20 | 2013-12-25 | 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 | Pressurized-dragging continuous fracturing process |
| CN108252681A (en) * | 2017-12-27 | 2018-07-06 | 中国石油天然气股份有限公司 | Steam channeling prevention and control device and method for thermal production well operation |
| CN108691566A (en) * | 2017-04-11 | 2018-10-23 | 中国石油化工股份有限公司 | Sand control pack integrated well head device and operational method |
| CN108775238A (en) * | 2018-05-28 | 2018-11-09 | 中石化石油工程技术服务有限公司 | Continuous ball-throwing apparatus |
-
2005
- 2005-08-27 CN CN 200520092297 patent/CN2825929Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103306655A (en) * | 2013-05-29 | 2013-09-18 | 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 | Staged fracturing method adopting under-pressure dragging |
| CN103306655B (en) * | 2013-05-29 | 2016-01-20 | 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 | A kind of dragging staged fracturing method with pressure |
| CN103422845A (en) * | 2013-06-16 | 2013-12-04 | 盐城金龙达机械制造有限公司 | Y-type reducing dual-channel high-pressure acidizing and fracturing well head device |
| CN103470239A (en) * | 2013-08-20 | 2013-12-25 | 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 | Pressurized-dragging continuous fracturing process |
| CN103470239B (en) * | 2013-08-20 | 2015-07-29 | 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 | A kind of continuous fracturing technology method of dragging with pressure |
| CN108691566A (en) * | 2017-04-11 | 2018-10-23 | 中国石油化工股份有限公司 | Sand control pack integrated well head device and operational method |
| CN108252681A (en) * | 2017-12-27 | 2018-07-06 | 中国石油天然气股份有限公司 | Steam channeling prevention and control device and method for thermal production well operation |
| CN108775238A (en) * | 2018-05-28 | 2018-11-09 | 中石化石油工程技术服务有限公司 | Continuous ball-throwing apparatus |
| CN108775238B (en) * | 2018-05-28 | 2020-12-04 | 中石化石油工程技术服务有限公司 | Continuous ball throwing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061011 Termination date: 20100827 |