CN203394496U - Equal-drift-diameter conventional fracture well head and ground flow path - Google Patents

Equal-drift-diameter conventional fracture well head and ground flow path Download PDF

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Publication number
CN203394496U
CN203394496U CN201320457402.5U CN201320457402U CN203394496U CN 203394496 U CN203394496 U CN 203394496U CN 201320457402 U CN201320457402 U CN 201320457402U CN 203394496 U CN203394496 U CN 203394496U
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CN
China
Prior art keywords
flow path
flow process
well head
flow
fracturing fluid
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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 - Fee Related
Application number
CN201320457402.5U
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Chinese (zh)
Inventor
张永春
方纯昌
孔繁志
边永江
王宏志
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.)
Daqing Oilfield Co Ltd
China Petroleum and Natural Gas Co Ltd
Original Assignee
Daqing Oilfield Co Ltd
China Petroleum and Natural Gas Co Ltd
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Publication date
Application filed by Daqing Oilfield Co Ltd, China Petroleum and Natural Gas Co Ltd filed Critical Daqing Oilfield Co Ltd
Priority to CN201320457402.5U priority Critical patent/CN203394496U/en
Application granted granted Critical
Publication of CN203394496U publication Critical patent/CN203394496U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model provides an equal-drift-diameter conventional fracture well head and a ground flow path used in oil-water well fracturing construction during oil field production. The ground flow path comprises a fracturing fluid injection flow path, a blowout flow path and a well fracturing flow path, wherein the blowout flow path and the well fracturing flow path are respectively connected with flat valves on two sides of a four-way joint of the well head, and the fracturing fluid injection flow path is connected with a main channel of a technological tubular column in a well through an irregular pipe tee joint. In addition, high-pressure parts in the fracturing fluid injection flow path, the blowout flow path and the well fracturing flow path are identical in drift diameter and connected through the same specification of unions. The high-pressure parts required by the fracture well head and the ground flow path are unified in specification and model, good in compatibility and high in sealing performance, construction risks are effectively reduced, installation and usage in a field are convenient, and the labor intensity of constructors is reduced.

Description

Deng the conventional fracture well head of latus rectum and ground flow
Technical field
In the utility model field produces, fracture in oil and water wells when construction is used waits the conventional fracture well head of latus rectum and ground flow.
Background technology
Fracture in oil and water wells is constructed required wellhead assembly mainly by straight tube, elbow, threeway, all kinds of high voltage components such as gate valve form, these parts in use need to bear the operation pressure of tens of MPas, and be subject to the erosion of high-velocity fluid and the corrosion of chemical agent, there is following problem in existing procedure: (1) indivedual high voltage components can not meet construction needs in pressing crack construction process, conventional pressing crack construction oil pipe is 2-7/8 " external upset tubing, its latus rectum is Φ 59.6mm, the specification of on-the-spot actual supporting high voltage component mostly is 2 ", its latus rectum is generally in 50mm left and right, in pipeline, produce the effect of damming, cause operation pressure to raise, discharge capacity reduces, and the erosion of high-pressure fluid easily causes the damage of high voltage component.In addition, well head position install 2 " ball valve cannot drop into blanking plug after pressure, can only unload in uncontrolled flow situation, throw after ball valve stifled; (2) high voltage component specifications and models disunity, between each parts, because type of attachment is different, cannot directly be connected, have to adopt crossover sub to connect, the dangerous point source of a whole set of flow process is increased, between product, compatibility is poor, often occurs that pipe fitting connects rear poor, the even packing less phenomenon of sealing; (3) Well head flow path design is unreasonable, affect indivedual high voltage component application life, and a whole set of combined altitudes is excessive, on-the-spot fitting operation difficulty; (4) each high voltage component adopts nipple more, and pipeline connects difficulty, and site operation personnel labor intensity is large, exists certain security risk in work progress.
Summary of the invention
In order to address the above problem, the utility model provides a kind of conventional fracture well head of latus rectum and ground flow of waiting.The required high voltage component specifications and models of this well head are unified, and between each parts, compatibility is good, sealing is high, effectively reduces construction risk, and scene is installed and used more convenient, reduce constructor's labour intensity.
The technical solution of the utility model is: a kind of conventional fracture well head of latus rectum and ground flow of waiting, comprise that fracturing fluid injects flow process, open flow flow process and kill-job flow process, described open flow flow process and kill-job flow process are connected with the flap type of well head four-way both sides respectively, it is characterized in that: described fracturing fluid injects flow process and is connected with the main channel of process pipe string in well by abnormal pipe threeway, and each high voltage component that above-mentioned fracturing fluid injects flow process, open flow flow process and kill-job flow process is 2.5 " waits latus rectum, and adopts same specification union connection.
In described open flow flow process, by cross valve, be connected with relief line outlet, discharge opeing outlet and setting pressure table port.
Above-mentioned pressure meter is by 9/16, and " AC joint connects stop valve.
The beneficial effects of the utility model are: in such scheme, all high voltage component latus rectums are unified specification, internal diameter 58mm is also connected by the union of unified specification, eliminated original 2 " high voltage component latus rectum is too small, phenomenon is dammed in existence, and can in the situation that not dismantling head valve, deliver blanking plug; All high voltage components are unified adopts 2.5, and " sealing effectiveness of connecting portion is better for FIG1502 union, the simpler and more direct facility of connection between each parts, and has eliminated the frequent phenomenon of using crossover sub in original flow process, effectively reduces dangerous point source; Improved Well head flow path, adopted abnormal pipe threeway, reduced the setting height(from bottom) of Well head flow path, thereby reduced installation difficulty.Moving on ball injector, make it only to bear pressure in work progress, no longer by fluid, can effectively extend the application life of ball injector; Simplified relief line flow process, adopt four-way to realize the function of the outlet of installation open flow, discharge opeing outlet and setting pressure table simultaneously, removed former relief line for the threeway of setting pressure table, " AC joint makes manometric towards can 360 ° of adjustment in improvement project, between pressure meter and stop valve, to have introduced 9/16.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 be in Fig. 1 A to partial view.
1-reducer union in figure, 2-ball valve, 3-abnormal pipe threeway, 4-ball injector; 5-lifting sub, 6-plug, 7-120o major radius bend pipe, 8-rigidity straight tube; 9-10 type major radius movable elbows, 10-T-shaped threeway, 11-plug valve; 12-union, 13-tubing nipple, 14-four-way; 15-protection joint, 16-stop valve and AC joint, 17-pressure meter; 18-tubing coupling, 19-elevator, 20-flap type.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in Figure 1, the conventional fracture well head of these latus rectums and ground flow, comprise that fracturing fluid injects flow process, open flow flow process and kill-job flow process, described open flow flow process and kill-job flow process are connected with the flap type of well head four-way both sides respectively, wherein, described fracturing fluid injects flow process and is connected with the main channel of process pipe string in well by abnormal pipe threeway, and each high voltage component that above-mentioned fracturing fluid injects flow process, open flow flow process and kill-job flow process is 2.5 " etc. latus rectum, and adopt same specification union connection.
The lower end of above-mentioned abnormal pipe threeway is the " union 12 through 2.5 successively, ball valve 2, 2.5 " union 12, reducer union 1 and tubing coupling 18 are connected with the elevator 19 on well head four-way, the deformity port of abnormal pipe threeway is successively through 120o major radius bend pipe 7, rigidity straight tube 8, 10 type major radius movable elbows 9, T-shaped threeway 10, tubing nipple 13 and another T-shaped threeway 10 connect, the other end of this T-shaped threeway 10 is connected with other end tubing nipple 13, for being connected with other liquid-injection equipment, and above-mentioned each high voltage component 120o major radius bend pipe 7, rigidity straight tube 8, 10 type major radius movable elbows 9, T-shaped threeway 10, 2.5 " union 12 connections that 10 of tubing nipple 13 and another T-shaped threeways by unified internal diameter are, two T-shaped threeway 10 another port are respectively through 2.5, and " union 12 connects plug valve 11, making fracturing fluid inject flow process is communicated with the main channel of process pipe string in well, the upper end of abnormal pipe threeway connects through another tubing coupling 18, ball injector 4, lifting sub 5 and plug 6 successively, as shown in Figure 1
Described well head four-way both sides are provided with two flap types 20, and one of them connects open flow flow process, and another connects kill-job flow process.Described open flow flow process comprises the tubing nipple 13 being connected with flap type 20; the other end of tubing nipple 13 is followed successively by two ball valves 2; in the middle of two ball valves, by four-way 14, connected; and four-way 14 another port is connected with stop valve 16 and pressure meter 17 in turn through protection joint 15; stop valve 16 is connected by AC joint with pressure meter 17; make manometric towards can 360 ° of adjustment; solved in former relief line and all adopted screwed connection between pressure meter and stop valve; make manometric towards adjusting difficult problem, as shown in Figure 2.The 4th port of four-way 14 is connected with ball valve 2, for connected drainage pipeline; And between above-mentioned tubing nipple 13 and ball valve 2 and 3 ball valves 2, by 2.5, " union 12 is connected.
Described kill-job flow process is that above-mentioned another flap type 20 connects ball valves 2 through one section of tubing nipple 13, the other end connected pipes pipe nipple 13 of ball valve 2, and between ball valve 2 and two sections of tubing nipples 13, by 2.5, " union 12 is connected.
In such scheme, fracturing fluid injects flow process, open flow flow process and each press member of kill-job flow process and all adopts unified latus rectum 58mm, the phenomenon of damming of having eliminated original high voltage component latus rectum disunity and having existed, and can in the situation that not dismantling head valve, deliver blanking plug; In addition, fracturing fluid injects the unified employing 2.5 of all high voltage components of flow process, open flow flow process and kill-job flow process " union connects; make the simpler and more direct facility of connection between each parts; the sealing effectiveness of connecting portion is better; and eliminated the frequent phenomenon of using crossover sub in original flow process, effectively reduce dangerous point source; And fracturing fluid injection flow process is connected with the main channel of process pipe string in well by abnormal pipe threeway, has reduced well head and injected the overall installation height of flow process, thereby reduced installation difficulty; To on ball injector, move, make it only to bear pressure in work progress, no longer by fluid, can effectively extend the application life of ball injector.

Claims (3)

1. one kind is waited the conventional fracture well head of latus rectum and ground flow, comprise that fracturing fluid injects flow process, open flow flow process and kill-job flow process, described open flow flow process and kill-job flow process are connected with the flap type of well head four-way both sides respectively, it is characterized in that: described fracturing fluid injects flow process and is connected with the main channel of process pipe string in well by abnormal pipe threeway, and each high voltage component that above-mentioned fracturing fluid injects flow process, open flow flow process and kill-job flow process is 2.5 " waits latus rectum, and adopts same specification union connection.
2. the conventional fracture well head of latus rectum and the ground flow of waiting according to claim 1, is characterized in that: in described open flow flow process, by cross valve, be connected with relief line outlet, discharge opeing outlet and setting pressure table port.
3. the conventional fracture well head of latus rectum and the ground flow of waiting according to claim 2, is characterized in that: above-mentioned pressure meter is by 9/16, and " AC joint connects stop valve.
CN201320457402.5U 2013-07-30 2013-07-30 Equal-drift-diameter conventional fracture well head and ground flow path Expired - Fee Related CN203394496U (en)

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Application Number Priority Date Filing Date Title
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105863597A (en) * 2016-05-27 2016-08-17 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 High pressure manifold device for carbon dioxide dry fracturing
CN106761616A (en) * 2016-12-07 2017-05-31 中国石油天然气股份有限公司 A kind of water injection well online injection acidifying construction operation manifold used
CN106968660A (en) * 2017-06-06 2017-07-21 华美孚泰油气增产技术服务有限责任公司 A kind of new pressure break high pressure line connection combination and corresponding high pressure delivery system
CN107120093A (en) * 2017-01-11 2017-09-01 中石化重庆涪陵页岩气勘探开发有限公司 With coiled tubing is integrated to the interim capping operation device of horizontal well and application method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105863597A (en) * 2016-05-27 2016-08-17 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 High pressure manifold device for carbon dioxide dry fracturing
CN105863597B (en) * 2016-05-27 2018-09-04 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 carbon dioxide dry method pressure break high-pressure manifold device
CN106761616A (en) * 2016-12-07 2017-05-31 中国石油天然气股份有限公司 A kind of water injection well online injection acidifying construction operation manifold used
CN107120093A (en) * 2017-01-11 2017-09-01 中石化重庆涪陵页岩气勘探开发有限公司 With coiled tubing is integrated to the interim capping operation device of horizontal well and application method
CN106968660A (en) * 2017-06-06 2017-07-21 华美孚泰油气增产技术服务有限责任公司 A kind of new pressure break high pressure line connection combination and corresponding high pressure delivery system

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C14 Grant of patent or utility model
GR01 Patent grant
C53 Correction of patent of invention or patent application
CB03 Change of inventor or designer information

Inventor after: Zhang Yongchun

Inventor after: Fang Chunchang

Inventor after: Meng Fanzhi

Inventor after: Bian Yongjiang

Inventor after: Wang Hongzhi

Inventor before: Zhang Yongchun

Inventor before: Fang Chunchang

Inventor before: Kong Fanzhi

Inventor before: Bian Yongjiang

Inventor before: Wang Hongzhi

COR Change of bibliographic data

Free format text: CORRECT: INVENTOR; FROM: ZHANG YONGCHUN FANG CHUNCHANG KONG FANZHI BIAN YONGJIANG WANG HONGZHI TO: ZHANG YONGCHUN FANG CHUNCHANG MENG FANZHI BIAN YONGJIANG WANG HONGZHI

CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140115

Termination date: 20210730