CN104005726A - Oil extraction wellhead device supporting safe replacement of leaking valve - Google Patents
Oil extraction wellhead device supporting safe replacement of leaking valve Download PDFInfo
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- CN104005726A CN104005726A CN201310069468.1A CN201310069468A CN104005726A CN 104005726 A CN104005726 A CN 104005726A CN 201310069468 A CN201310069468 A CN 201310069468A CN 104005726 A CN104005726 A CN 104005726A
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- flat gate
- gate valves
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- valve
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Abstract
The invention discloses an oil extraction wellhead device supporting safe replacement of a leaking valve. The oil extraction wellhead device is characterized by consisting of an oil pipe head portion and an oil extraction tree portion. No. 2, No. 3, No. 5 and No. 6 flat gate valves are arranged on two wings of an oil pipe head. During use, a single wing is used generally, two flat valves are arranged on a single wing channel, the channel can be cut off by closing any flat valve, and a leaking valve can be replaced safely by cutting off the channel when other flat valves leak. No. 1, No. 4 and No. 7 valves are taken as main flat gate valves of an oil extraction tree, No. 8 and No. 9 valves are taken as flat gate valves on two wings of the oil extraction tree, and adjustable throttling valves on the two wings are used for adjusting the channel flow. The oil extraction wellhead device has the beneficial effects that major components are fastened by using a dual-end stud and a nut through a sealing gasket ring and a screw thread flange to enhance the sealing effect, thereby meeting the requirements of oil gas pressures and flows of different wellheads and enhancing the operating reliability; the oil extraction wellhead device has the advantages of convenience in installation, safety, reliability, superior sealing performance, wear resistance, corrosion resistance, long service life and the like.
Description
Technical field
The present invention relates to the oil and gas wellhead device field of oilfield machinery, particularly relate to a kind of wellhead for production that can change safely leakage valve.
Background technology
Along with the prolongation of oilfield development process and production time, the multinomial technological measure workload of oil well increases increasingly.Wellhead assembly is to guarantee the normal visual plant of producing of oil well, although particularly wellhead for production is of a great variety, structure is also had nothing in common with each other.But along with the increase of access times, its weak point shows especially day by day, and its component often damage, maintenance difficult, and it does not have good hermetically-sealed construction, easily causes the generation of leakage accident, can not realize reliably multinomial process operation, application life is short, has increased the cost of winning of enterprise.After completing fracture acidizing operation, can not directly complete follow-up oil producing operation, inefficiency, is used trouble.Simultaneously, the sealing of oilfield machinery oil and gas wellhead, widely used is not only large but also heavy Wellhead packer, top is equipped with to shut down and could be continued the packing box that adds packing, oil well is after long-term use, oil pumper or well head basis are uneven owing to occurring, cause well head or oil-pump base TS to be directed at sucker rod partial wear and make wellhead sealing inefficacy leakage of oil, find not in time, may there is oil-spraying, at this moment need to shut down and again add sealed packing, existing technology provides a kind of oil well sealer of adjusting center, though solve must shut down at present and could continue the problem of adding or changing new packing, under stopped status not, can continue and add sealing filler, the Wellhead packer having used while having cancelled the not only large but also heavy well workover of well head, the sucker rod of oil pumper and the eccentric wear problem that well head decentraction produces have been solved within the specific limits, but labour intensity is large, environment is dirty, also can cause the minimizing of output.
Summary of the invention
It is bad in order to solve in prior art wellhead for production sealing effectiveness that order of the present invention is exactly, and can not directly carry out the problem of follow-up oil producing operation, overcomes above-mentioned deficiency of the prior art, and a kind of wellhead for production that can change safely leakage valve is provided.
For achieving the above object, the present invention is achieved by the following technical solutions:
The wellhead for production that can change safely leakage valve, is characterized in that: described device is partly comprised of tubing head part and production tree.Described tubing head partly comprises plug, thread flange, No. 6 flap types, No. 3 flat gate valves and No. 2 flat gate valves, No. 5 flat gate valves, stud, nut, studding bolt, tubing head four-way, pressure meter, stop valve, meter connector, gasket ring, upper stud, top nut, upper gasket ring, tubing hanger, jackscrew pressure cap, lower Packing seat, filler, upper Packing seat, jackscrew, two public short circuits, nameplate and rivet, described production tree partly comprises crossover flange, little four-way, No. 1 flat gate valve, No. 9 flat gate valves, No. 8 flat gate valve connects, No. 7 flat gate valves, No. 4 flat gate valves, right side adjustable throttling, left side adjustable throttling and nameplate and rivet, described tubing head four-way both sides are respectively No. 6 flat gate valves, No. 3 flat gate valves and No. 2 flat gate valves, No. 5 flat gate valves, have gasket ring between tubing head four-way and flat gate valve, use studding Bolt Connection, between flat gate valve, by thread flange, with studs and nut, connect, and the right end of tubing head passes through meter connector, connect stop valve and pressure meter, other end thread flange and plug, be equipped with tubing hanger in the middle of tubing head four-way, lower Packing seat, filler, upper Packing seat, two public short circuits, jackscrew and jackscrew pressure cap, have upper gasket ring, by upper stud between tubing head four-way top and crossover flange, top nut is fixedly connected, and crossover flange is connected with No. 1 flat gate valve.
The arranged on left and right sides of described little four-way is communicated with No. 9 flat gate valves, No. 8 flat gate valves, upper and lowerly be communicated with No. 7 flat gate valves, No. 4 flat gate valves, between little four-way and No. 9 flat gate valves, No. 8 flat gate valves, No. 7 flat gate valves, No. 4 flat gate valves, there is gasket ring, use studding Bolt Connection, the right flank of No. 8 flat gate valves is equipped with right side adjustable throttling, left side adjustable throttling is equipped with in the left side of No. 9 flat gate valves, between flat gate valve and adjustable throttling, there are gasket ring and thread flange, with studs and fastening nuts.
Described flat gate valve has 8 covers, and adjustable throttling has 2 covers, between each flat gate valve, all have gasket ring and thread flange between flat gate valve and adjustable throttling, by with studs and fastening nuts.
Described stop valve is used for control and protection pressure meter, is also used as device, transposing pressure meter
Further illustrate the operating principle of tubing head, production tree:
Tubing head both wings flat gate valve is 2,3,5, No. 6 flat gate valves, in use, the general single-blade that uses, single-blade passage upper flat plate valve has two, close arbitrarily a flap type and just can block passage, but 2, No. 3 valves generally do not use as operating valve, block passage when leaking appears in other flap type, the valve that replacing that can be safe is leaked.So, very high to 2, No. 3 flap type quality requirements.
The main flat gate valve of production tree is 1,4, No. 7 valve, production tree both wings flat gate valve is 8, No. 9 valves, and both wings adjustable throttling is right side adjustable throttling, left side adjustable throttling, in use, the general single-blade that uses, No. 7 flat gate valve is mainly used in shaft mouth operation.Passage upper flat plate gate valve has three, close arbitrarily a flat gate valve and just can block passage, but No. 1 valve is generally as operating valve use, when leaking appears in other flat gate valve, closes No. 1 flat gate valve and blocks passage, the valve that replacing that can be safe is leaked.So, very high to No. 1 flap type quality requirement.Adjustable throttle valve is used for regulating channel capacity, and adjustable throttle valve should not be used as switch valve.
Usefulness of the present invention is:
Can change safely the wellhead for production of leakage valve, between critical piece by gasket ring and thread flange, by studs and fastening nuts enhanced leaktightness effect, single-blade passage upper flat plate valve has two, close arbitrarily a flap type and just can block passage, the valve that replacing that can be safe is leaked, adjustable throttle valve can be used in adjusting channel capacity, the needs that are applicable to different well head oil atmospheric pressures and flow, tubing hanger is housed in the middle of tubing head four-way, lower Packing seat, filler, upper Packing seat, two public short circuits, jackscrew and jackscrew pressure cap, operation is more reliable, product has easy for installation, safe and reliable, sealing performance is superior, Wear-resistant corrosion-resistant, the advantages such as long service life, can directly carry out normal oil producing operation, improved efficiency, safety in production to oil field, volume increase stable yields has played positive effect.
Accompanying drawing explanation
Fig. 1 is structure sectional view of the present invention.
In Fig. 1: 1-plug, 2-thread flange, 3-6 flat gate valve, 3.1-3 flat gate valve, 3.2-2 flat gate valve, 3.3-5 flat gate valve, 3.4-1 flat gate valve, 3.5-4 flat gate valve, 3.6-7 flat gate valve, 3.7-9 flat gate valve, 3.8-8 flat gate valve, 4-stud, 5-nut, 6-studding bolt, 7-tubing head four-way, 8 pressure meters, 9-stop valve, 10-meter connector, 11-gasket ring, the upper stud of 12-, 13-top nut, the upper gasket ring of 11-, 15-tubing hanger, 16-jackscrew pressure cap, Packing seat under 17-, 18-filler, the upper Packing seat of 19-, 20-jackscrew, the two public short circuits of 21-, 22-nameplate, 23-rivet, 24-crossover flange, the little four-way of 25-, 26-right side adjustable throttling, 27-nameplate, 28-rivet, 29 left side adjustable throttlings.
The specific embodiment
Below in conjunction with Figure of description, the present invention is described in further details:
The wellhead for production that can change safely leakage valve, is characterized in that: described device is partly comprised of tubing head part and production tree.Described tubing head partly comprises plug 1, thread flange 2, No. 6 flat gate valves 3, No. 3 flat gate valves 3.1, No. 2 flat gate valves 3.2, No. 5 flat gate valves 3.3, stud 4, nut 5, studding bolt 6, tubing head four-way 7, pressure meter 8, stop valve 9, meter connector 10, gasket ring 11, upper stud 12, top nut 13, upper gasket ring 14, tubing hanger 15, jackscrew pressure cap 16, lower Packing seat 17, filler 18, upper Packing seat 19, jackscrew 20, two public short circuits 21, nameplate 22, rivet 23, described production tree partly comprises crossover flange 24, little four-way 25, No. 1 flat gate valve 3.4, No. 4 flat gate valves 3.5, No. 7 flat gate valves 3.6, No. 9 flat gate valves 3.7, No. 8 flat gate valves 3.8, , right side adjustable throttling 26, left side adjustable throttling 29, nameplate 27, rivet 28, the both sides of described tubing head four-way 7 are respectively No. 6 flap types 3, No. 3 flat gate valves 3.1 and No. 2 flat gate valves 3.2, No. 5 flat gate valves 3.3, have gasket ring 11 between tubing head four-way 7 and No. 3 flat gate valves 3.1 and No. 2 flat gate valves 3.2, connect, between No. 6 flap types 3 and No. 3 flat gate valves 3.1 with studding bolt 6, No. 2 flat gate valves 3.2, between No. 5 flat gate valves 3.3, by thread flange, with studs and nut, connect, the right art end of tubing head 7 is by meter connector 10, connect stop valve 9 and pressure meter 8, other end thread flange 2 and plug 1, be equipped with tubing hanger 15 in the middle of tubing head four-way 7, lower Packing seat 17, filler 18, upper Packing seat 19, two public short circuits 21, jackscrew 20 and jackscrew pressure cap 16, have upper gasket ring 14, by upper stud 12 between the top of tubing head four-way 7 and crossover flange 24, top nut 13 is fixedly connected, and crossover flange 24 is connected with No. 1 flat gate valve 3.4.
A left side for described little four-way 25, right both sides and No. 9 flat gate valves 3.7, No. 8 flat gate valve 38 is communicated with, on, down with No. 7 flat gate valves 3.6, No. 4 flat gate valve 3.5 is communicated with, little four-way 25 and No. 9 flat gate valves 3.7, No. 8 flat gate valves 3.8, No. 7 flat gate valves 3.6, between No. 4 flat gate valves 3.5, there is gasket ring, use studding Bolt Connection, the right flank of No. 8 flat gate valves is equipped with right side adjustable throttling 26, left side adjustable throttling 29 is equipped with in the left side of No. 9 flat gate valves, between No. 8 flat gate valves and right side adjustable throttling 26, between No. 9 flat gate valves and left side adjustable throttling 29, there are gasket ring and thread flange, with studs and fastening nuts.
Described stop valve 9 is used for control and protection pressure meter 8, is also used as device, transposing pressure meter 8.During as needs device or replacing pressure meter, as long as stop valve 9 is closed, release overbottom pressure, just can carry out device or change pressure meter 8.
That in manual of the present invention, describes just illustrates principle of the present invention, and without departing from the spirit and scope of the present invention, the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.
Claims (3)
1. the wellhead for production that can change safely leakage valve, by tubing head part and production tree, partly formed, it is characterized in that described tubing head partly comprises plug, thread flange, No. 6 flap types, No. 3 flat gate valves, No. 2 flat gate valves, No. 5 flat gate valves, stud, nut, studding bolt, tubing head four-way, pressure meter, stop valve, meter connector, gasket ring, upper stud, top nut, upper gasket ring, tubing hanger, jackscrew pressure cap, lower Packing seat, filler, upper Packing seat, jackscrew, two public short circuits, nameplate and rivet, described production tree partly comprises crossover flange, little four-way, No. 1 flat gate valve, No. 9 flat gate valves, No. 8 flat gate valves, No. 7 flat gate valves, No. 4 flat gate valves, right side adjustable throttling, left side adjustable throttling and nameplate and rivet.
2. a kind of wellhead for production that can change safely leakage valve according to claim 1, it is characterized in that described tubing head four-way both sides are respectively No. 6 flat gate valves, No. 3 flat gate valves and No. 2 flat gate valves, No. 5 flat gate valves, between tubing head four-way and No. 3 flat gate valves and No. 2 flat gate valves, there is gasket ring, use studding Bolt Connection, between No. 6 flat gate valves and No. 3 flat gate valves and between No. 2 flat gate valves and No. 5 flat gate valves, pass through thread flange, with studs and nut, connect, the right end of tubing head passes through meter connector, connect stop valve and pressure meter, other end thread flange and plug, tubing hanger is housed in the middle of tubing head four-way, lower Packing seat, filler, upper Packing seat, two public short circuits, jackscrew and jackscrew pressure cap, between tubing head four-way top and crossover flange, there is upper gasket ring, by upper stud, top nut is fixedly connected, crossover flange is connected with No. 1 flat gate valve.
3. a kind of wellhead for production that can change safely leakage valve according to claim 1, a left side that it is characterized in that described little four-way, right both sides and No. 9 flat gate valves, No. 8 flat gate valve is communicated with, on, down with No. 7 flat gate valves, No. 1 flat gate valve is communicated with, little four-way and No. 9 flat gate valves, No. 8 flat gate valves, No. 7 flat gate valves, between No. 4 flat gate valves, there is gasket ring, use studding Bolt Connection, the right flank of No. 8 flat gate valves is equipped with right side adjustable throttling, left side adjustable throttling is equipped with in the left side of No. 9 flat gate valves, between flat gate valve and adjustable throttling, there are gasket ring and thread flange, with studs and fastening nuts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310069468.1A CN104005726A (en) | 2013-02-22 | 2013-02-22 | Oil extraction wellhead device supporting safe replacement of leaking valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310069468.1A CN104005726A (en) | 2013-02-22 | 2013-02-22 | Oil extraction wellhead device supporting safe replacement of leaking valve |
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| Publication Number | Publication Date |
|---|---|
| CN104005726A true CN104005726A (en) | 2014-08-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310069468.1A Pending CN104005726A (en) | 2013-02-22 | 2013-02-22 | Oil extraction wellhead device supporting safe replacement of leaking valve |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111997557A (en) * | 2020-07-28 | 2020-11-27 | 盐城工学院 | Oil production wellhead sealing technology and device structural design |
| 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 |
| CN112647885A (en) * | 2020-12-31 | 2021-04-13 | 江苏信得石油机械股份有限公司 | Casing head for preventing leakage of oil field well mouth |
| CN114809984A (en) * | 2022-05-20 | 2022-07-29 | 盐城旭东机械有限公司 | Fracturing pilot production composite wellhead device |
| CN117231156A (en) * | 2023-11-15 | 2023-12-15 | 江苏苏盐阀门机械有限公司 | Oil production wellhead device capable of safely replacing leakage valve |
-
2013
- 2013-02-22 CN CN201310069468.1A patent/CN104005726A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111997557A (en) * | 2020-07-28 | 2020-11-27 | 盐城工学院 | Oil production wellhead sealing technology and device structural design |
| 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 |
| CN112647885A (en) * | 2020-12-31 | 2021-04-13 | 江苏信得石油机械股份有限公司 | Casing head for preventing leakage of oil field well mouth |
| CN112647885B (en) * | 2020-12-31 | 2022-07-15 | 江苏信得石油机械股份有限公司 | Casing head for preventing leakage of oil field well head |
| CN114809984A (en) * | 2022-05-20 | 2022-07-29 | 盐城旭东机械有限公司 | Fracturing pilot production composite wellhead device |
| CN117231156A (en) * | 2023-11-15 | 2023-12-15 | 江苏苏盐阀门机械有限公司 | Oil production wellhead device capable of safely replacing leakage valve |
| CN117231156B (en) * | 2023-11-15 | 2024-02-20 | 江苏苏盐阀门机械有限公司 | Oil production wellhead device capable of safely replacing leakage valve |
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Application publication date: 20140827 |