CN201110154Y - Oil production, gas well mouth apparatus - Google Patents
Oil production, gas well mouth apparatus Download PDFInfo
- Publication number
- CN201110154Y CN201110154Y CNU2007200425878U CN200720042587U CN201110154Y CN 201110154 Y CN201110154 Y CN 201110154Y CN U2007200425878 U CNU2007200425878 U CN U2007200425878U CN 200720042587 U CN200720042587 U CN 200720042587U CN 201110154 Y CN201110154 Y CN 201110154Y
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- well mouth
- mouth device
- valve
- gas well
- big
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Abstract
The utility model relates to a well mouth device for extracting oil and gas, which comprises a conical seat-type big cross joint, a conical seat-type oil pipe hanger, a flat-plate gate valve and the like, wherein a production tree is arranged on the upper end of the conical seat-type big cross joint through an upper flange, and the conical seat-type oil pipe hanger is mounted in a big cross joint. The utility model is characterized in that the production tree comprises a small cross joint, a flat-plate gate valve and an adjustable needle-shaped valve, wherein the small cross joint is respectively connected with the upper flange, two adjustable needle-shaped valves and a screwed flange through the flat-plate gate valve, the flat-plate gate valve is a rising stem structure, a device with a tail shaft is removed, a sealing ring and a sealing groove are adopted by sealing, wherein the sealing ring is a metal ring whose four corners are provided with chamfer angles, and the sealing groove is a ladder-shaped groove whose upper portion is big and lower portion is small, and a hydraulic control pipe line hole and a cable channel are also arranged on the upper flange. The well mouth device can not only be used for oil recovery operation of blow wells, but also can be applied in pump well operation and fracture acidizing operation, and meanwhile, the well mouth device can control flow quantity and pressure of natural gas, which has excellent sealing effect, in addition, the well mouth device is also provided with the hydraulic control pipe line hole and the cable channel, thereby well mouth structure is simplified.
Description
Technical field
The utility model relates to a kind of wellhead assembly that is used for oilfield exploitation, especially relates to the wellhead assembly of a kind of oil recovery, natural gas, belongs to oil and gas exploitation apparatus field.
Background technology
What be used at present that the wellhead assembly of oilfield exploitation extensively adopts is conventional wellhead for production, but it is applicable to oil exploitation, and can only be applicable to a kind of of flowing well and pumpingh well, when according to circumstances needing to change, also need change wellhead assembly, add the wellhead assembly of fracture acidizing operation, operation field need be equipped with several cover wellhead assemblies, increase cost, and increased workload.If adopt the conventional wellhead for production of a certain clock, when running into comparatively complicated geological condition, as mud, natural gas etc., conventional wellhead for production is not then dealt with, and there is the excessive and safety problem that produces of pipeline internal pressure, if the wellhead assembly that specific placement taps natural gas then takes time and effort.In addition, existing wellhead assembly does not have the hole of passing through cable and liquid controling pipe line is set, and pass through cable or liquid controling pipe line, need establish channel in addition, has reduced the function of wellhead assembly, has increased the complexity of wellhead assembly.
The utility model content
In order to solve the deficiencies in the prior art, the purpose of this utility model be to provide a kind of can be used for recovering the oil also can be used for natural gas extraction, and can be used for oil recovery, the gas well mouth device of flowing well, pumpingh well and fracture acidizing operation.
For achieving the above object, the utility model is to realize by following technical scheme:
A kind of oil recovery, gas well mouth device, comprise awl seat formula big four, awl seat formula tubing hanger, flat gate valve, lower flange, upper flange, production tree, the screw thread flange, described lower flange is installed in the lower end of awl seat formula big four, described production tree is installed in the upper end of awl seat formula big four by upper flange, both sides at awl seat formula big four are separately installed with two flat gate valves, awl seat formula tubing hanger is installed in the big four, it is characterized in that described production tree comprises little four-way, flat gate valve, adjustable needle valve, described little four-way connects upper flange respectively by flat gate valve, two adjustable needle valves and screw thread flange; Described flat gate valve is the rising stem (RS.) structure, has cancelled the magnetic tape trailer lever apparatus, and joint ring and seal groove are adopted in sealing, and described joint ring is a metal ring, and four angles have chamfering, and described seal groove is up big and down small dovetail groove.
Aforesaid oil recovery, gas well mouth device is characterized in that also being provided with liquid controling pipe line hole and cable passage on described upper flange.
Aforesaid oil recovery, gas well mouth device is characterized in that described liquid controling pipe line hole and cable passage are respectively 3.
Aforesaid oil recovery, gas well mouth device is characterized in that between the described cable passage close mutually.
Aforesaid oil recovery, gas well mouth device is characterized in that also being connected with pressure meter by stop valve between described flat gate valve and adjustable needle valve.
Aforesaid oil recovery, gas well mouth device is characterized in that being connected with pressure meter by stop valve between two flat gate valves of described awl seat formula big four one side.
Aforesaid oil recovery, gas well mouth device is characterized in that described adjustable needle valve, it is characterized in that adjustable needle valve is a tapered needle valve, and valve rod is the transmission of fine pitch screw thread.
The beneficial effects of the utility model are: oil recovery of the present utility model, gas well mouth device both can be used for the flowing well oil producing operation, also can be used for pumpingh well operation and fracture acidizing operation, can control flow, the pressure of natural gas simultaneously; Good sealing effect, the utility model is provided with liquid controling pipe line hole and cable passage in addition, has simplified shaft collar.
Description of drawings
Fig. 1 is the assembling schematic diagram of oil recovery of the present utility model, gas well mouth device;
Fig. 2 is the cross-sectional view of the joint ring of oil recovery of the present utility model, gas well mouth device.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model specifically is described below:
Fig. 1 is the assembling schematic diagram of oil recovery of the present utility model, gas well mouth device.As shown in the figure, oil recovery of the present utility model, gas well mouth device, comprise awl seat formula big four 2, awl seat formula tubing hanger (not shown), flat gate valve 10, upper flange 3, production tree etc., production tree comprises little four-way 11, flat gate valve, adjustable needle valve 6, screw thread flange 5, stop valve 8, pressure meter 9 etc.Awl seat formula big four 2 upper flanges 3, lower flange 1 diameter are 480mm, are provided with the BX156 gasket ring, and the both sides latus rectum is 65mm, is connected to 4 of flat gate valves.Have the BX156 gasket ring on the lower flange 1, be furnished with 12 M33 * 260 bolts, link to each other with awl seat formula big four 2 bottoms.Valve has been cancelled the magnetic tape trailer lever apparatus, has increased the minute surface grinding process at plate, seating face.Fig. 2 is the cross-sectional view of the joint ring of oil recovery of the present utility model, gas well mouth device.The structure of joint ring and seal groove is adopted in the sealing of flat gate valve of the present utility model, joint ring adopts metal ring, four angles all have chamfering, seal groove is up big and down small dovetail groove, joint ring is placed in the seal groove, after valve gap and valve seat close joint ring is clipped in wherein, even fastening valve gap is promptly salable.The sealing effectiveness of this hermetically-sealed construction is fine, and can bear high pressure, works under high pressure conditions and also can not leak.
It is the 29/16 " flat gate valve of 1000psi that awl seat formula big four 2 right sides are connected with two latus rectums; Awl seat formula big four 2 left sides also are connected with two flat gate valves 10, are connected to a pressure meter by stop valve between two flat gate valves.Stop valve is used for control and protect manometricly, and is convenient to change safely pressure meter.
In the inside of awl seat formula big four 2 awl seat formula tubing hanger is housed.There have 3 1/4 in design on the upper flange 3 to be close mutually between " NPT liquid controling pipe line hole 4 and 3 3/8 " 7,3 cable passages of NPT cable passage.Production tree links to each other with awl seat formula big four 2 upper surfaces by upper flange 3.The last termination screw thread flange 5 of production tree, the both wings of production tree are connected to flat gate valve and adjustable needle valve 6 respectively.Flat gate valve can only play in pipeline and blocks or the conducting effect, must not be as regulating flow usefulness, otherwise can influence sealing performance and application life.Behind the closing gate valve handwheel being forwarded to the end turns round 1/4 circle again, makes valve plate be in quick condition, can reach sealing effectiveness.
Adjustable needle valve 6 adopts tapered needle valve, and valve rod is the transmission of fine pitch screw thread, only makes control and adjusting tolerance and pressure and uses.Between flat gate valve and adjustable needle valve 6, also be connected with pressure meter 9 by stop valve 8.After the adjusting, screwing also, cap can make tolerance keep stable and avoid the production-supply-marketing bar to withdraw from automatically.
In sum, the utility model improves existing wellhead assembly, both can under flowing well oil recovery, pumpingh well and fracture acidizing condition, carry out operation, having can be in the middle use that taps natural gas, little, the convenient disassembly of volume, safer, for oilfield stimulation, the stable yields of motherland played positive effect.
The foregoing description does not limit the utility model in any form, and all technical schemes that mode obtained of taking to be equal to replacement or equivalent transformation all drop in the protection domain of the present utility model.
Claims (7)
1, recover the oil, gas well mouth device, comprise awl seat formula big four, awl seat formula tubing hanger, flat gate valve, lower flange, upper flange, production tree, the screw thread flange, described lower flange is installed in the lower end of awl seat formula big four, described production tree is installed in the upper end of awl seat formula big four by upper flange, both sides at awl seat formula big four are separately installed with two flat gate valves, awl seat formula tubing hanger is installed in the big four, it is characterized in that described production tree comprises little four-way, flat gate valve, adjustable needle valve, described little four-way connects upper flange respectively by flat gate valve, two adjustable needle valves and screw thread flange; Described flat gate valve is the rising stem (RS.) structure, has cancelled the magnetic tape trailer lever apparatus, and joint ring and seal groove are adopted in sealing, and described joint ring is a metal ring, and four angles have chamfering, and described seal groove is up big and down small dovetail groove.
2, oil recovery according to claim 1, gas well mouth device is characterized in that also being provided with liquid controling pipe line hole and cable passage on described upper flange.
3, oil recovery according to claim 2, gas well mouth device is characterized in that described liquid controling pipe line hole and cable passage are respectively 3.
4, oil recovery according to claim 3, gas well mouth device is characterized in that between the described cable passage close mutually.
5, oil recovery according to claim 1 and 2, gas well mouth device is characterized in that also being connected with pressure meter by stop valve between described flat gate valve and adjustable needle valve.
6, oil recovery according to claim 1 and 2, gas well mouth device is characterized in that being connected with pressure meter by stop valve between two flat gate valves of described awl seat formula big four one side.
7, oil recovery according to claim 1, gas well mouth device is characterized in that described adjustable needle valve, it is characterized in that adjustable needle valve is a tapered needle valve, and valve rod is the transmission of fine pitch screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200425878U CN201110154Y (en) | 2007-11-19 | 2007-11-19 | Oil production, gas well mouth apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200425878U CN201110154Y (en) | 2007-11-19 | 2007-11-19 | Oil production, gas well mouth apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201110154Y true CN201110154Y (en) | 2008-09-03 |
Family
ID=39894684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200425878U Expired - Lifetime CN201110154Y (en) | 2007-11-19 | 2007-11-19 | Oil production, gas well mouth apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201110154Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102268971A (en) * | 2011-08-05 | 2011-12-07 | 中国石油天然气股份有限公司 | Cable-through type thermal recovery wellhead device for electric submersible pump |
| CN104790907A (en) * | 2015-03-16 | 2015-07-22 | 宝鸡石油机械有限责任公司 | Tubing head blocking isolating valve for fracture wellhead device |
| CN112554833A (en) * | 2020-12-22 | 2021-03-26 | 江苏雄越石油机械设备制造有限公司 | Wellhead oil production device |
| CN113107865A (en) * | 2021-04-18 | 2021-07-13 | 深圳景嘉机电科技有限公司 | Multifunctional submersible pump ground control device |
| CN113653462A (en) * | 2021-07-06 | 2021-11-16 | 王亚莉 | Thermal recovery well head gate valve |
-
2007
- 2007-11-19 CN CNU2007200425878U patent/CN201110154Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102268971A (en) * | 2011-08-05 | 2011-12-07 | 中国石油天然气股份有限公司 | Cable-through type thermal recovery wellhead device for electric submersible pump |
| CN102268971B (en) * | 2011-08-05 | 2013-07-31 | 中国石油天然气股份有限公司 | Cable-through type thermal recovery wellhead device for electric submersible pump |
| CN104790907A (en) * | 2015-03-16 | 2015-07-22 | 宝鸡石油机械有限责任公司 | Tubing head blocking isolating valve for fracture wellhead device |
| CN112554833A (en) * | 2020-12-22 | 2021-03-26 | 江苏雄越石油机械设备制造有限公司 | Wellhead oil production device |
| CN113107865A (en) * | 2021-04-18 | 2021-07-13 | 深圳景嘉机电科技有限公司 | Multifunctional submersible pump ground control device |
| CN113653462A (en) * | 2021-07-06 | 2021-11-16 | 王亚莉 | Thermal recovery well head gate valve |
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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: 20080903 |