CN201225118Y - Well head self seal capable of being quickly assembled and dissembled - Google Patents

Well head self seal capable of being quickly assembled and dissembled Download PDF

Info

Publication number
CN201225118Y
CN201225118Y CNU2008201317023U CN200820131702U CN201225118Y CN 201225118 Y CN201225118 Y CN 201225118Y CN U2008201317023 U CNU2008201317023 U CN U2008201317023U CN 200820131702 U CN200820131702 U CN 200820131702U CN 201225118 Y CN201225118 Y CN 201225118Y
Authority
CN
China
Prior art keywords
self
well head
hole
styled
sealing
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
CNU2008201317023U
Other languages
Chinese (zh)
Inventor
张建党
冯惠兰
郭耘
卞先孟
潘朝军
李红跃
游静
吴方平
董丽
王军
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.)
China Petrochemical Corp
Downhole Operation Department of Sinopec Henan Oilfield Branch Co
Original Assignee
Downhole Operation Department of Sinopec Henan Oilfield Branch Co
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 Downhole Operation Department of Sinopec Henan Oilfield Branch Co filed Critical Downhole Operation Department of Sinopec Henan Oilfield Branch Co
Priority to CNU2008201317023U priority Critical patent/CN201225118Y/en
Application granted granted Critical
Publication of CN201225118Y publication Critical patent/CN201225118Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a well-head self seal having rapid assembly and disassembly, which belongs to the field of oilfield exploitation and mainly comprises a valve platen and a flange casing, wherein a self-sealing core is arranged between the valve platen and the flange casing, locking bolts are uniformly distributed in the circumference direction of the valve platen, and a handle is arranged at one side of the outer circumference; a step though hole is arranged in the middle, and an unidirectional opening which is connected with the through hole to be in axial symmetry is radially arranged on the through hole; sealing grooves are respectively arranged on the upper end surface and the lower end surface of the flange casing, and a through hole matched with the self-sealing core is arranged in the middle; connecting bolts are uniformly distributed in the circumference direction at the upper part, and variable-diameter locking grooves are uniformly distributed among the connecting bolts; the self-sealing core is a revolving body formed by combining two parts; a shoulder is arranged at the upper part, a protruding circular sealing ring is arranged on the lower end surface of the shoulder, a self-sealing main body is arranged at the lower part, and a horn-shaped through hole is arranged at the middle part. The adoption of the utility model can notably improve the efficiency of self-sealing operation for assembling and disassembling a well head and can lighten the labor intensity. When a blowout well accident occurs, the self seal can be rapidly disassembled so that the blowout well accident is effectively controlled in time.

Description

A kind of quickly dismantled well head is self-styled
One, technical field
The utility model relates to oil exploration and development fields, is applicable to remove oil pipe operation pit, is a kind of rig tool that can guarantee the well head sealing when down-hole oil tube removes, wipe the oil-pipe external wall greasy dirt off.
Two, background technology
Well head is self-styled to be requisite wellhead assembly in the oilfield downhole operation construction, can prevent trouble of lost tool in hole, protection well head in playing lower tubular column job execution process, realizes cleaner production.The self-styled main and supporting use of well head big four of well head in the past can be divided into two kinds by architectural feature: a kind of self-styled for conventional well head, a kind of is that the open type well head is self-styled.Conventional well head is self-styled mainly is made up of platen, housing and fuse etc., and its platen and housing do not have the valve opening.Conventional well head is when mounted self-styled, must be through emptying tubing string on the well head, lift and put self-styled, elevator and pluck operations such as button, and, lean on and manually wear the well head attachment bolt one by one fixedly the time with the well head connection at last, and fastening nut one by one.The self-styled shortcoming of conventional well head is: handling procedure is loaded down with trivial details, and the labour intensity of operating worker is big during dismounting, waste time and energy, and when gas blowout accident takes place, can not very fast being removed.The open type well head is self-styled mainly to be made up of housing, fuse, rotating shaft and lock pin etc., and its housing and fuse are that symmetry is divided body structure, and housing fuses by rotating shaft, and can open and close around the shaft.The open type well head is when mounted self-styled, though saved emptying tubing string on the well head, lift and put self-styled, elevator and pluck operations such as button, when connecting fixedly, still to lean on and manually wear the well head attachment bolt one by one with well head, and fastening nut one by one.The self-styled shortcoming of open type well head is: the labour intensity of operating worker is bigger during dismounting, waste time and energy, and when gas blowout accident takes place, can not very fast being removed.
Renewal along with security concepts; oil play has proposed oil-water well operation " big well control " requirement, i.e. must preventer be installed earlier at well head during operation, simultaneously in the rountrip work progress for preventing trouble of lost tool in hole, protecting well head; realize cleaner production, it is self-styled also need well head to be installed on preventer.Well head in the past is self-styled main supporting with the well head big four, do not match with preventer, and handling procedure is loaded down with trivial details, and the labour intensity of operating worker is big during dismounting, during the generation gas blowout accident, and can not very fast being removed.
Three, summary of the invention
The purpose of this utility model is in order to overcome the deficiency of prior art, solve now with the self-styled existence of well head and wellhead blowout preventor does not match, handling procedure is loaded down with trivial details, operation is inconvenient, labor strength is big, when gas blowout accident takes place, the technical barrier that can not in time be removed and a kind of quickly dismantled well head of providing is self-styled.
Realize that the technical scheme that the purpose of this utility model adopted is:
A kind of quickly dismantled well head is self-styled, mainly is made up of valve platen and flange shell, is provided with self-sealing core between valve platen and flange shell.
Described valve platen circumferencial direction is evenly equipped with lock bolt and the locking nut that is linked together with it, the prefabricated jug in excircle side, and the step through-hole of middle part for matching with self-sealing core directly upwards is provided with the unidirectional opening of coupled axial symmetry along this through hole.
Described flange shell is a T type flange arrangement, upper and lower end face is respectively equipped with seal groove, the through hole of middle part for matching with self-sealing core, the top circumferencial direction is evenly equipped with the well head attachment bolt that is fixed together with it, is evenly equipped with the reducing locking slot that matches with the locking screw screw bolt and nut between this bolt.
Described self-sealing core is combined by two lobes and is the single-revolution body, and top is provided with shoulder, and sulfuration has ring skeleton in the shoulder, and the shoulder lower surface is provided with the O-ring seal of protrusion, and the bottom is self-styled main body, and the middle part is tubaeform through hole.
The handle on the valve platen and the direction of unidirectional opening are rectangular.
Adopt the technical solution of the utility model, can significantly improve the self-styled operating efficiency of dismounting well head, reduce labor strength, when gas blowout accident takes place, can promptly remove self-styledly, timely and effective control gas blowout accident takes place.
This scenario-frame compactness, highly low, supporting with wellhead blowout preventor, can satisfy oil-water well operation " big well control " requirement.By the housing transition, self-styled being connected and fixed with preventer adopted bolt rotational lock and rotation release mode, need not manually wear the well head attachment bolt one by one, and be time saving and energy saving.
Four, description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the structural representation of the utility model valve platen.
Fig. 3 is that the A of Fig. 2 is to view.
Fig. 4 is the structural representation of the utility model flange shell.
Fig. 5 be Fig. 4 A to view.
Fig. 6 is the structural representation of the utility model self-sealing core.
Five, the specific embodiment
Referring to Fig. 1, the utility model mainly is made up of valve platen 1 and flange shell 2, is provided with self-sealing core 3 between valve platen 1 and flange shell 2.
Referring to Fig. 2 and Fig. 3, described valve platen 1 circumferencial direction is evenly equipped with lock bolt 1-1 and the locking nut 1-2 that is linked together with it, the prefabricated jug 1-3 in excircle side, the step through-hole 1-5 of middle part for matching with self-sealing core 3 directly upwards is provided with the unidirectional opening 1-4 of the axial symmetry that links to each other with through hole 1-5 along through hole 1-5.Handle 1-3 on the valve platen 1 and the direction of unidirectional opening 1-4 are rectangular.
Referring to Fig. 4 and Fig. 5, described flange shell 2 is a T type flange arrangement, upper and lower end face is respectively equipped with seal groove 2-1,2-2, the through hole 2-5 of middle part for matching with self-sealing core 3, the top circumferencial direction is evenly equipped with the well head attachment bolt 2-3 that is fixed together with it, is evenly equipped with the reducing locking slot 2-4 that matches with bolt 1-1 and nut 1-2 between the bolt 2-3.
Referring to Fig. 6, described self-sealing core 3 is combined by two lobes and is the single-revolution body, and top is provided with shoulder 3-1, shoulder 3-1 goes up sulfuration ring skeleton 3-2, shoulder 3-1 lower surface is provided with the O-ring seal 3-3 of protrusion, and the bottom is self-styled main body 3-4, and the middle part is tubaeform through hole 3-5.
Referring to Fig. 1 to Fig. 6, the well head attachment bolt 2-3 of the utility model by flange shell 2 is connected with wellhead blowout preventor and fastens as one.Operation plays lower tubular column when installing axially puts into the middle part through hole 2-5 of flange shell 2 to the self-styled main body 3-4 of two lobe self-sealing cores 3 along tubing string, is seated at fully among the seal groove 2-1 on flange shell 2 tops until the O-ring seal 3-3 of self-sealing core 3.Unidirectional opening 1-4 with valve platen 1 aims at and inserts the middle part through hole 1-5 of working string to valve platen 1 then, the lock bolt 1-1 of valve platen 1 and locking nut 1-2 are aimed at and fall into the major diameter groove of the reducing locking groove 2-4 of flange shell 2, hold the handle 1-3 of valve platen 1, the position of locking the minor diameter groove on the groove 2-4 towards the reducing of flange shell 2 along the circumferential direction rotates, and this moment, valve platen 1 and flange shell 2 were locked together.Tighten the locking nut 1-2 of valve platen 1 at last, the installation procedure of self-packer is just all finished.
When the operation completion or need to dismantle when self-styled midway, unclamp the locking nut 1-2 of valve platen 1 earlier, the handle 1-3 that holds valve platen 1 along the circumferential direction rotates towards the position that the reducing of flange shell 2 is locked the major diameter groove of groove 2-4, carry then, major diameter groove on the reducing locking groove 2-4 that the lock bolt 1-1 and the locking nut 1-2 of valve platen 1 break away from flange shell 2, this moment, valve platen 1 and flange shell 2 were thrown off, take off valve platen 1, take out two lobe self-sealing cores 3 at last.And flange shell 2 and preventer still be connected as one and do not need to take apart, and integral body is pulled down during completion, during following subjob again integral installation at well head.

Claims (5)

1. a quickly dismantled well head is self-styled, mainly is made up of valve platen (1) and flange shell (2), it is characterized in that: be provided with self-sealing core (3) between valve platen (1) and flange shell (2).
2. a kind of quickly dismantled well head according to claim 1 is self-styled, it is characterized in that: valve platen (1) circumferencial direction is evenly equipped with lock bolt (1-1) and the locking nut (1-2) that is linked together with it, the prefabricated jug in excircle side (1-3), the step through-hole (1-5) of middle part for matching with self-sealing core (3) upwards is provided with the unidirectional opening of axial symmetry (1-4) that links to each other with through hole (1-5) along through hole (1-5) footpath.
3. a kind of quickly dismantled well head according to claim 2 is self-styled, it is characterized in that: flange shell (2) is a T type flange arrangement, upper and lower end face is respectively equipped with seal groove (2-1), (2-2), the through hole (2-5) of middle part for matching with self-sealing core (3), the top circumferencial direction is evenly equipped with the well head attachment bolt (2-3) that is fixed together with it, is evenly equipped with the reducing locking slot (2-4) that matches with bolt (1-1) and nut (1-2) between the bolt (2-3).
4. a kind of quickly dismantled well head according to claim 3 is self-styled, it is characterized in that: self-sealing core (3) is combined by two lobes and is the single-revolution body, top is provided with shoulder (3-1), sulfuration has ring skeleton (3-2) in the shoulder (3-1), shoulder (3-1) lower surface is provided with the O-ring seal (3-3) of protrusion, the bottom is self-styled main body (3-4), and the middle part is tubaeform through hole (3-5).
5. a kind of quickly dismantled well head according to claim 4 is self-styled, it is characterized in that: the handle (1-3) on the valve platen (1) is rectangular with the direction of unidirectional opening (1-4).
CNU2008201317023U 2008-07-24 2008-07-24 Well head self seal capable of being quickly assembled and dissembled Expired - Fee Related CN201225118Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2008201317023U CN201225118Y (en) 2008-07-24 2008-07-24 Well head self seal capable of being quickly assembled and dissembled

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2008201317023U CN201225118Y (en) 2008-07-24 2008-07-24 Well head self seal capable of being quickly assembled and dissembled

Publications (1)

Publication Number Publication Date
CN201225118Y true CN201225118Y (en) 2009-04-22

Family

ID=40598003

Family Applications (1)

Application Number Title Priority Date Filing Date
CNU2008201317023U Expired - Fee Related CN201225118Y (en) 2008-07-24 2008-07-24 Well head self seal capable of being quickly assembled and dissembled

Country Status (1)

Country Link
CN (1) CN201225118Y (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104619143A (en) * 2015-03-05 2015-05-13 无锡康贝电子设备有限公司 Cabinet cold channel elevated base and elevated base system
CN110617023A (en) * 2019-09-26 2019-12-27 中石化石油工程技术服务有限公司 No drill floor well head operation overflow liquid collection device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104619143A (en) * 2015-03-05 2015-05-13 无锡康贝电子设备有限公司 Cabinet cold channel elevated base and elevated base system
CN104619143B (en) * 2015-03-05 2017-12-12 无锡康贝电子设备有限公司 Rack cold passage access foundation and access foundation system
CN110617023A (en) * 2019-09-26 2019-12-27 中石化石油工程技术服务有限公司 No drill floor well head operation overflow liquid collection device

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Legal Events

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: 20090422

Termination date: 20130724