CN201045287Y - injection-extraction integrated well head device - Google Patents

injection-extraction integrated well head device Download PDF

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Publication number
CN201045287Y
CN201045287Y CNU2007200375760U CN200720037576U CN201045287Y CN 201045287 Y CN201045287 Y CN 201045287Y CN U2007200375760 U CNU2007200375760 U CN U2007200375760U CN 200720037576 U CN200720037576 U CN 200720037576U CN 201045287 Y CN201045287 Y CN 201045287Y
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CN
China
Prior art keywords
oil
utility
model
valve
pressure
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CNU2007200375760U
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Chinese (zh)
Inventor
陆军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NANJING WEIYE MECHINE CO Ltd
Original Assignee
NANJING WEIYE MECHINE CO Ltd
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Publication date
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Priority to CNU2007200375760U priority Critical patent/CN201045287Y/en
Application granted granted Critical
Publication of CN201045287Y publication Critical patent/CN201045287Y/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model relates to a mine mouth device with all-in-one injection and production, which comprises a gas production valve, a big cross joint, an oil pipe hanger particularly made for oil fields, an upper flange, an oil production small cross joint, an oil production valve, a clamp, a clamp short section, two cutoff valves and two manometers. The utility model is characterized in that the utility model is divided into an upper portion and a lower portion, wherein the lower portion is a high-pressure fracturing part, the upper portion is an oil production operating part, and the upper portion and the lower portion are connected via a crossover flange. The mine mouth device of the utility model is divided into two portions, thereby the utility model can be used in both the fracturing operation in oil fields and the oil production operation, and can be freely assembled according to production needs. The utility model is small in volume, light in weight, convenient, time-saving, safe and reliable to operate and able to alleviate the labor intensity of operating workers.

Description

Notes are adopted integrated wellhead assembly
Technical field
The utility model relates to a kind of wellhead assembly that is used for oilfield exploitation, especially relates to a kind of variorum, adopts incorporate wellhead assembly, belongs to oil exploration equipment device field.
Background technology
Wellhead assembly is the visual plant that guarantees the oil well ordinary production.At present, though the wellhead assembly of field by using is of a great variety, structure is also had nothing in common with each other, but function singleness is annotated can not recovering the oil of vapour comparatively speaking,, that recovers the oil can not annotate vapour, need to change accessory in the operation and just can finish the work of following step, can not well satisfy the needs of field operation, also increased the labour intensity of operating worker.Existing wellhead assembly also has to annotate adopts one, and vapour pressure is split part and oil extraction operation partly is fixed together but it is annotated.When the notes vapour pressure was split work in actual job, the pressure that wellhead assembly will bear was higher, and in oil recovery process, the pressure that wellhead assembly will bear is less, even needed outwards oil pumping.Therefore, vapour pressure will be split part and the oil extraction operation partial fixing links together if will annotate, and just this two-part rated operating pressure need be formulated for annotating vapour pressure and split operating pressure, split work otherwise just can not annotate vapour pressure.But the specification of oil extraction operation part is improved, cause waste, improved manufacturing cost, and the volume of whole wellhead assembly, weight are increased.
The utility model content
Be to solve the deficiencies in the prior art, the purpose of this utility model is to provide a kind of control well head when can be used for the oilfield fracturing work, and the notes that can be used as production wellhead are again adopted integrated wellhead assembly.
For addressing the above problem, the utility model is to realize by following technical scheme:
A kind of notes are adopted integrated wellhead assembly, comprise gas production valve, big four, oil field tailor-made oil pipe hanger, upper flange, the little four-way of oil recovery, oil recovery valve, clip, clip pipe nipple, two stop valves, two pressure meters, it is characterized in that it is divided into upper and lower two parts, the bottom is divided into high pressure pressure break part, top is divided into the oil extraction operation part, and the centre connects by crossover flange.
Aforesaid notes are adopted integrated wellhead assembly, it is characterized in that before described two pressure meters snubber being housed respectively also.
Aforesaid notes are adopted integrated wellhead assembly, it is characterized in that described gas production valve, oil recovery valve, on the sealing surface of its flashboard and valve seat built-up welding one deck nickel phosphorus carbide alloy.
The beneficial effects of the utility model are: the utility model is divided into two parts up and down with wellhead assembly, both can be used for the oilfield fracturing work, can be used for oil producing operation again, freely assemble according to producing needs, volume is little, in light weight, operation makes things convenient for, saves time, safe and reliable, alleviated the labour intensity of operating worker.
Description of drawings
Fig. 1 is the assembling schematic diagram that notes of the present utility model are adopted integrated wellhead assembly.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model specifically is described below:
Fig. 1 is the assembling schematic diagram that notes of the present utility model are adopted integrated wellhead assembly.As shown in the figure, the utility model wellhead assembly fixedly connected, that can not separately use originally is divided into upper and lower two parts, and the bottom is divided into high pressure pressure break part, and top is divided into the oil extraction operation part, and is middle by crossover flange 7 connections.Lower part high pressure pressure break partly comprises gas production valve 11, big four 10, pressure meter 1a, stop valve 2b, oil field tailor-made oil pipe hanger 9 and upper flange 8.Left and right gas production valve is connected with big four 10 by the flange on the gas production valve, gas production valve in left side is connected with stop valve 2b, snubber, pressure meter 2a, big four top is equipped with upper flange 8, and oil field tailor-made oil pipe hanger 9 is installed in the inside of big four 10, and mates with upper flange 8 endoporus; The top of upper flange 8 also is connected to the gas production valve, and fixedlys connected with crossover flange 7.The little four-way 4 of oil recovery of oil extraction operation part is connected the top of crossover flange 7 by clip 5, and its excess-three end of the little four-way 4 that recovers the oil is connected with oil recovery valve 3 by clip 5, clip pipe nipple 6 respectively.Oil recovery valve in left side is connected with stop valve 1b, snubber, pressure meter 1a.
Snubber is used for buffer gas to manometric pressure, and can avoid corrosive gas to enter in the pressure meter; Stop valve 1b, 2b are used for protecting and controlled pressure table 1a, 2a, and can avoid corrosive gas to enter in the pressure meter 2a; If pressure meter 2a uses anti-sulphur pressure meter, snubber can be cancelled.
All gas production valves, oil recovery valve use rising stem (RS.) formula wedge type gate valve, the energy display working condition, and bearing portion adds the O RunddichtringO, prevents that bearing is subjected to the corrosion of hydrogen sulfide gas.On the sealing surface of flashboard, valve seat built-up welding one deck nickel phosphorus carbide alloy, make the surface have higher hardness, the sand of anti-the haydite impacts, marresistance can be good, guarantees can well work under the high-pressure medium again.Valve rod adopts anti-sulfur materials, is not subjected to the corrosion of hydrogen sulfide.
Lower part high pressure pressure break part all pressure part all adopts alloy forged piece, and is under high pressure safe and reliable, can bear pressure 25~50MPa.The package unit major part adopts the anti-H 2 S material, and other part has also been given enough corrosion allowances, and by heat treatment, has hydrogen sulfide corrosion resistant ability preferably.V-shaped seal ring adopts fills tetrafluoroethene, and the O RunddichtringO adopts fluorubber, has good sealing property and resistance to corrosion.
The utility model is at first partly pulled down the top oil extraction operation by crossover flange 7 in use, and high pressure pressure break part in lower part is connected with external pressure devices, injects gases at high pressure, behind the pressure break stratum, opens left side gas production valve, and oil, gas blowout under the stratum go out.Treat pressure drop to the rated pressure of oil extraction operation part following a certain amount of after, the external high pressure device is pulled down, by crossover flange 7 oil extraction operation part in top is connected with the lower part, oil extraction operation upper end partly connects oil rig again and carries out oil producing operation.
The utility model improves original wellhead assembly, the pressure break part and the part of recovering the oil are separated, and can freely assemble use as required, simple in structure, volume is little, in light weight, and improved anticorrosive and shock-resistant ability, and simple to operation, reduced working strength of workers, realized annotating and adopted incorporate requirement, 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 taking is equal to the technical scheme that mode obtained of replacing equivalent transformation alive, all drops in the protection domain of the present utility model.

Claims (3)

1. annotate and adopt integrated wellhead assembly, comprise gas production valve, big four, oil field tailor-made oil pipe hanger, upper flange, the little four-way of oil recovery, oil recovery valve, clip, clip pipe nipple, two stop valves, two pressure meters, it is characterized in that it is divided into upper and lower two parts, the bottom is divided into high pressure pressure break part, top is divided into the oil extraction operation part, and the centre connects by crossover flange.
2. notes according to claim 1 are adopted integrated wellhead assembly, it is characterized in that before described two pressure meters snubber being housed respectively also.
3. notes according to claim 1 are adopted integrated wellhead assembly, it is characterized in that described gas production valve, oil recovery valve, on the sealing surface of its flashboard and valve seat built-up welding one deck nickel phosphorus carbide alloy.
CNU2007200375760U 2007-05-21 2007-05-21 injection-extraction integrated well head device Expired - Lifetime CN201045287Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2007200375760U CN201045287Y (en) 2007-05-21 2007-05-21 injection-extraction integrated well head device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2007200375760U CN201045287Y (en) 2007-05-21 2007-05-21 injection-extraction integrated well head device

Publications (1)

Publication Number Publication Date
CN201045287Y true CN201045287Y (en) 2008-04-09

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Family Applications (1)

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CNU2007200375760U Expired - Lifetime CN201045287Y (en) 2007-05-21 2007-05-21 injection-extraction integrated well head device

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CN (1) CN201045287Y (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106246127A (en) * 2016-07-26 2016-12-21 中国石油天然气股份有限公司 Note adopts integrated well head device
CN108252681A (en) * 2017-12-27 2018-07-06 中国石油天然气股份有限公司 Thermal recovery well operations channeling prevention and control device and its method
CN109252848A (en) * 2018-11-29 2019-01-22 美钻深海能源科技研发(上海)有限公司 It is a kind of to produce and the dual-purpose split type upper flange of pressure break
CN110778284A (en) * 2019-11-06 2020-02-11 中国石油天然气股份有限公司 Suitable for CO 2Huff-puff injection-production integrated wellhead device and using method thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106246127A (en) * 2016-07-26 2016-12-21 中国石油天然气股份有限公司 Note adopts integrated well head device
CN106246127B (en) * 2016-07-26 2018-11-16 中国石油天然气股份有限公司 Note adopts integrated well head device
CN108252681A (en) * 2017-12-27 2018-07-06 中国石油天然气股份有限公司 Thermal recovery well operations channeling prevention and control device and its method
CN109252848A (en) * 2018-11-29 2019-01-22 美钻深海能源科技研发(上海)有限公司 It is a kind of to produce and the dual-purpose split type upper flange of pressure break
CN110778284A (en) * 2019-11-06 2020-02-11 中国石油天然气股份有限公司 Suitable for CO 2Huff-puff injection-production integrated wellhead device and using method thereof

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C53 Correction of patent for invention or patent application
CB03 Change of inventor or designer information

Inventor after: Army

Inventor after: Li Jun

Inventor after: Cui Yanli

Inventor before: Lu Jun

COR Change of bibliographic data

Free format text: CORRECT: INVENTOR; FROM: LU JUN TO: LU JUN; LI JUN; CUI YANLI

CX01 Expiry of patent term

Granted publication date: 20080409

CX01 Expiry of patent term