CN2929162Y - Wellhead in-site test pressure complete set device - Google Patents

Wellhead in-site test pressure complete set device Download PDF

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Publication number
CN2929162Y
CN2929162Y CNU2006200925785U CN200620092578U CN2929162Y CN 2929162 Y CN2929162 Y CN 2929162Y CN U2006200925785 U CNU2006200925785 U CN U2006200925785U CN 200620092578 U CN200620092578 U CN 200620092578U CN 2929162 Y CN2929162 Y CN 2929162Y
Authority
CN
China
Prior art keywords
center tube
center pipe
leather cup
seal support
guide shoe
Prior art date
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
CNU2006200925785U
Other languages
Chinese (zh)
Inventor
蔡长宇
刘宝
张景利
邰德军
李贵库
倪荣发
杜丽东
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.)
Liaohe Petroleum Exploration Bureau
Original Assignee
Liaohe Petroleum Exploration Bureau
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Liaohe Petroleum Exploration Bureau filed Critical Liaohe Petroleum Exploration Bureau
Priority to CNU2006200925785U priority Critical patent/CN2929162Y/en
Application granted granted Critical
Publication of CN2929162Y publication Critical patent/CN2929162Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a wellhead on-site pressure testing arrangement for downhole operation of oil gas wells in oil fields and comprises a guide shoe (1), an upper center pipe (2), an upper leather cup (3), an upper seal support (4), a coupling (5), a lower center pipe (6), a lower leather cup (7), a lower seal support (8), a pipe plug (9), a big four-way valve (10), and a valve (11), wherein the guide shoe (1) is provided with 6 grooves and connected with the screw thread of the upper center pipe (2), the upper leather cup (3) is arranged on the upper seal support (4) and sleeved on the upper center pipe (2), and the coupling (5) is connected with the screw threads of the upper center pipe (5) and the lower center pipe (6). The lower leather cup (7) is arranged on the lower seal support (8) and sleeved on the lower center pipe (6), and the lower center pipe (6) is connected with the screw threads of the pipe plug (9), the big four-way valve (10), and the valve (11). The utility model solves the problems that the prior technology cannot exactly test the pressure of the leak oil, gas and water of the well head, the stripper, the blowout preventer and the perforation gate, leading to potential safety hazards. The utility model can be extensively applied in the downhole pressure testing of oil gas wells in oil fields.

Description

Well head on-site voltage-measuring corollary apparatus
Technical field:
The utility model relates to the well head on-site voltage-measuring corollary apparatus that the underground work of a kind of oilfield well is used.
Background technology:
Oil field development at present enters the middle and later periods, oil recovery unit uses multinomial technical measures makes the oil well produce oil reach the purpose of volume increase, in order to ensure construction safety, before construction, all to carry out pressure testing to the perforation gate sealing situation that well head carries out installing before wellhead blowout preventor or the perforation.The tool kind of well head on-site voltage-measuring is various, but present corollary apparatus can not carry out rational on-site voltage-measuring to blowout control equipment and well head sealing condition measures whether well head or preventer have seepage oil, gas, water when blowout takes place problem, to guarantee the construction safety of oil, gas, well.
Summary of the invention:
The utility model purpose is to provide a kind of well head on-site voltage-measuring corollary apparatus, it solved exist in the prior art whether the problem of seepage oil, gas, regimen condition can take place to well head well head or preventer after blowout takes place.Realize the pressure testing of sealing fully of well head or preventer, guaranteed the construction safety of oil, gas, well.
The technical scheme that its technical problem that solves the utility model adopts is: well head on-site voltage-measuring corollary apparatus, form by guide shoe, upper center tube, last leather cup, upper seal support, box cupling, lower center tube, down cup, bottom sealing socket, plug, big four, valve; Open 6 groove (see figure 2)s and can cross water and alleviate its weight on guide shoe, guide shoe is threaded with upper center tube, and last leather cup is sitting on the upper seal support, and it is enclosed within on the upper center tube, and box cupling is threaded with upper center tube, lower center tube; Down cup is sitting on the bottom sealing socket and together is enclosed within on the lower center tube, and lower center tube is threaded with plug, and big four is threaded with valve; During use, hanging guide shoe top is connected with 2  lifting subs, elevator hangs on the lifting sub, with workover rig this device is mentioned, G.I.H, to hang guide shoe is seated in the well head big four, lay down lifting sub and close wellhead blowout preventor, the down cup external diameter is greater than well inner sleeve internal diameter 3mm on these two same sizes in device bottom, this moment, both were close on the internal surface of sleeve pipe, on, bottom sealing socket prevents, down cup is descending, the bottom plug is with the upper center tube channel separation, during work, cementing truck is connected with well head big four gate, water squeezed into act in the sleeve pipe on leather cup and the upper seal support, make it be close to casing wall under pressure, prevent that pressure from sealing in the well from top, bottom leather cup and bottom sealing socket are as standby, but when last leather cup operational failure rear lower leather cup operate as normal, borehole pressure acts on well head and wellhead blowout preventor from hanging the guide shoe water channel simultaneously, and well head is partly carried out pressure testing, and pressure testing can bleed off borehole pressure with four-way two side gates after finishing, lifting sub is screwed in the guide shoe, and the rotation make-up proposes this device in the well; With this device directly be seated in can realize in the four-way to well head, blowout preventer seal entirely, the perforation gate carries out on-site voltage-measuring after installing; Connecting lifting sub on the guide shoe can realize well head, blowout preventer half envelope are carried out the scene back pressure testing is installed; If tubing string can be connected when having oil pipe in the well on this device bottom screw thread (the plug outside has 2  " the plain end oil well pipe pin thread).
The new beneficial effect of this practicality is, simple in structure, result of use is good, and this device can carry out seepage oil, gas, water pressure testing to well head, blowout preventer, preventer and perforation gate exactly, avoids owing to the poorly sealed hidden danger that causes seepage oil after the blowout, gas, water in back is installed.
Description of drawings:
Fig. 1 is the utility model overall structure schematic diagram.
The utility model A is to end view among Fig. 2.
Among the figure, 1, guide shoe, 2, upper center tube, 3, go up leather cup, 4, upper seal support, 5, box cupling, 6, lower center tube, 7, down cup, 8, bottom sealing socket, 9, plug, 10, big four, 11, valve.
The specific embodiment:
As shown in the figure, well head on-site voltage-measuring corollary apparatus is made up of guide shoe 1, upper center tube 2, last leather cup 3, upper seal support 4, box cupling 5, lower center tube 6, down cup 7, bottom sealing socket 8, plug 9, big four 10, valve 11; Open 6 grooves on guide shoe 1, guide shoe 1 is threaded with upper center tube 2, and last leather cup 3 is sitting on the upper seal support 4, and it is enclosed within on the upper center tube 2, and box cupling 5 is threaded with upper center tube 2, lower center tube 6; Down cup 7 is sitting on the bottom sealing socket 8 and together is enclosed within on the lower center tube 6, and lower center tube 6 is threaded with valve 11 with plug 9, big four 10.

Claims (1)

1, a kind of well head on-site voltage-measuring corollary apparatus, form by guide shoe (1), upper center tube (2), last leather cup (3), upper seal support (4), box cupling (5), lower center tube (6), down cup (7), bottom sealing socket (8), plug (9), big four (10), valve (11), it is characterized in that: on guide shoe (1), open 6 grooves, guide shoe (1) is threaded with upper center tube (2), last leather cup (3) is sitting on the upper seal support (4), and it is enclosed within on the upper center tube (2), box cupling (5) is threaded with upper center tube (2), lower center tube (6); Down cup (7) is sitting in bottom sealing socket (8) goes up and together be enclosed within on the lower center tube (6), lower center tube (6) is threaded with valve (11) with plug (9), big four (10).
CNU2006200925785U 2006-07-25 2006-07-25 Wellhead in-site test pressure complete set device Expired - Fee Related CN2929162Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2006200925785U CN2929162Y (en) 2006-07-25 2006-07-25 Wellhead in-site test pressure complete set device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2006200925785U CN2929162Y (en) 2006-07-25 2006-07-25 Wellhead in-site test pressure complete set device

Publications (1)

Publication Number Publication Date
CN2929162Y true CN2929162Y (en) 2007-08-01

Family

ID=38307546

Family Applications (1)

Application Number Title Priority Date Filing Date
CNU2006200925785U Expired - Fee Related CN2929162Y (en) 2006-07-25 2006-07-25 Wellhead in-site test pressure complete set device

Country Status (1)

Country Link
CN (1) CN2929162Y (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103160261A (en) * 2011-12-15 2013-06-19 中国石油天然气股份有限公司 Preparation and use method of downhole intelligent plug
CN105257280A (en) * 2015-11-05 2016-01-20 大庆鸿润源石油科技开发有限公司 Lifting pressure testing device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103160261A (en) * 2011-12-15 2013-06-19 中国石油天然气股份有限公司 Preparation and use method of downhole intelligent plug
CN103160261B (en) * 2011-12-15 2016-07-06 中国石油天然气股份有限公司 The preparation of downhole intelligent plug and using method thereof
CN105257280A (en) * 2015-11-05 2016-01-20 大庆鸿润源石油科技开发有限公司 Lifting pressure testing device

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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: 20070801