CN104329042B - A kind of self-sealing head glue core assembly - Google Patents

A kind of self-sealing head glue core assembly Download PDF

Info

Publication number
CN104329042B
CN104329042B CN201410538037.XA CN201410538037A CN104329042B CN 104329042 B CN104329042 B CN 104329042B CN 201410538037 A CN201410538037 A CN 201410538037A CN 104329042 B CN104329042 B CN 104329042B
Authority
CN
China
Prior art keywords
gum cover
face
centre bore
cylinder
taper seat
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.)
Active
Application number
CN201410538037.XA
Other languages
Chinese (zh)
Other versions
CN104329042A (en
Inventor
冷波
马家增
陈建华
付永安
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.)
Chongqing Zhongzhong Petroleum Machinery Co Ltd
Original Assignee
Chongqing Zhongzhong Petroleum Machinery Co Ltd
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 Chongqing Zhongzhong Petroleum Machinery Co Ltd filed Critical Chongqing Zhongzhong Petroleum Machinery Co Ltd
Priority to CN201410538037.XA priority Critical patent/CN104329042B/en
Publication of CN104329042A publication Critical patent/CN104329042A/en
Application granted granted Critical
Publication of CN104329042B publication Critical patent/CN104329042B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B33/00Sealing or packing boreholes or wells
    • E21B33/02Surface sealing or packing
    • E21B33/03Well heads; Setting-up thereof

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Gasket Seals (AREA)

Abstract

The open a kind of self-sealing head glue core assembly of the present invention, gum cover upper end level is provided with a flanging, and the gum cover outer wall below flanging is combinatorial surface, and the hole wall of gum cover centre bore is combinatorial surface;Steel disc is embedded in gum cover, and is positioned at the second taper seat of gum cover centre bore;The axial line of lining centre bore and gum cover axial line are on same straight line, and centre bore is two-part structure, and bottom is cylindrical hole, and top is up big and down small conical bore;The external diameter on lining top is more than the external diameter of bottom, big one step surface of formation between footpath section and path section, the bottom of lining big footpath section is close to the 3rd face of cylinder of gum cover centre bore, the plane laminating of its step surface and gum cover centre bore, the path section of lining is inserted in the breach on gum cover centre bore the second taper seat top.The present invention can reliably seal up the harmful gas in well, prevents it from outwards overflowing formation " blowout ", drilling rod can be made again to remove neatly such that it is able to remove drilling rod under band pressure condition.

Description

A kind of self-sealing head glue core assembly
Technical field
The invention belongs to oil-drilling field, specifically, relate to a kind of self-sealing head glue for preventing blowout Core assembly.
Background technology
At oil-drilling field, typically do not allow the drilling rod that removes with pressure at present, need during operation first to seal well head, The lower drilling rod of recurrence, work efficiency is low, inconvenient operation.Do not allow the reason removing drilling rod with pressure to be simultaneously The toxic gas of down-hole may overflow, thus causes blowout, and then causes serious security incident, for this It is badly in need of solving above-mentioned technical barrier.
Summary of the invention
The technical problem to be solved is to provide the self-sealing head glue core assembly of a kind of good seal performance, Use fashionable dress this glue core assembly to be contained in lower house, thus form a self-sealing head, and be intended to by this self-sealing head Realize removing drilling rod under band pressure condition.
Technical scheme is as follows: a kind of self-sealing head glue core assembly, it is characterised in that: include gum cover (4), Steel disc (6) and lining (7), wherein gum cover (4) upper end level is provided with a flanging (4a), and this is outer Gum cover (4) outer wall below flange is combinatorial surface, be followed successively by from top to bottom connected the first taper seat, first The face of cylinder, the second taper seat and second face of cylinder, and first and second taper seat is the most up big and down small;Described gum cover (4) hole wall of centre bore is combinatorial surface, be followed successively by from the bottom up connected the first taper seat, first face of cylinder, Arcwall face, second face of cylinder, the second taper seat, plane and the 3rd face of cylinder, wherein little on the first taper seat Lower big, described arcwall face is the arcwall face of depression, and the diameter on described second face of cylinder is more than first face of cylinder It is little under diameter, and described second taper seat that upper this second taper seat upper end is connected with described plane the inner greatly, The outer end of this plane is connected with described 3rd lower end, the face of cylinder;Described steel disc (6) is embedded in gum cover (4), And be positioned at the second taper seat of gum cover (4) centre bore;
The axial line of described lining (7) centre bore and gum cover (4) axial line are on same straight line, in this Central hole is two-part structure, and bottom is cylindrical hole, and top is up big and down small conical bore;Described lining (7) The external diameter on top, more than the external diameter of bottom, forms a step surface, and lining between this big footpath section and path section (7) bottom of big footpath section is close to the 3rd face of cylinder of described gum cover (4) centre bore, the platform of lining (7) The plane laminating of terrace and gum cover (4) centre bore, and path section insertion gum cover (4) center of lining (7) In the breach on the second taper seat top, hole.
As in figure 2 it is shown, before Shi Yonging, first the present invention is contained in lower house (1), and by lower house (1) It is fixed on preventer.During use, drilling rod is through the centre bore of glue core assembly.Due to gum cover (4) outer wall Combinatorial surface designs, thus make harmful gas in well head from circumferencial direction be pressed in gum cover (4) whole On wall, thus compress drilling rod.Meanwhile, the particular design of described gum cover (4) centre bore, make again gum cover (4) The outer surface of inwall and drilling rod fit tightly, thus carry out good sealing, drilling rod and gum cover (4) simultaneously Between can relative movement, this makes it possible to remove drilling rod under state with pressure, consequently facilitating remove drilling rod, Improve work efficiency.
Beneficial effect: the present invention can reliably seal up the harmful gas in well, prevents it from outwards overflowing shape Become " blowout ", drilling rod can be made again to remove neatly such that it is able to remove drilling rod under band pressure condition, so Just can overcome the defect of prior art well, and present configuration is simple, it is easy to implement, under supporting Housing is easy for installation, has good practicality.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention;
Fig. 2 is present invention schematic diagram when being arranged on lower house 1.
Detailed description of the invention
The invention will be further described with embodiment below in conjunction with the accompanying drawings:
As shown in Figure 1, 2, a kind of self-sealing head glue core assembly, mainly by lower house 1, to splitted cover board 2, double Hook bolt 3 and glue core assembly are constituted.Wherein, the lower installation base 1a of lower house 1 lower end vertically has peace Dress hole, lower house 1 can be solid with preventer (being not drawn in figure) by the bolt being located in this installing hole Fixed connection.The upper mounting boss 1b end face of described lower house 1 upper end is fitted with to splitted cover board 2 bottom surface, and leads to Cross that one group of stud being vertically arranged 3 is fixing to be connected, and to the axial line of splitted cover board 2 centre bore and lower casing The axial line of body 1 is on same straight line.The middle part level of described lower house 1 has an air vent (figure In do not mark), an air relief cock 8 is installed at the outer aperture of this air vent.
Described glue core assembly is contained in lower house 1, and main by gum cover 4, gland 5, steel disc 6 and lining 7 Constitute.Wherein, the flanging 4a that gum cover 4 upper level is arranged is supported on the limit of lower house 1 inwall upper end Position step on, and this flanging 4a and described to splitted cover board 2 between clamping have a gland 5, this gland The axial line of the axial line of 5 and lower house 1 is on same straight line.
From Fig. 1,2 can be seen that, gum cover 4 outer wall below described flanging 4a is combinatorial surface, from top to bottom It is followed successively by connected the first taper seat, first face of cylinder, the second taper seat and second face of cylinder, and the first cone Face and the second taper seat are the most up big and down small.The hole wall of described gum cover 4 centre bore is combinatorial surface, depends on from the bottom up Secondary the first taper seat for being connected, first face of cylinder, arcwall face, second face of cylinder, the second taper seat, flat Face and the 3rd face of cylinder, wherein the first taper seat is up-small and down-big, and described arcwall face is the arcwall face of depression, and The diameter on described second face of cylinder more than under the first face of cylinder diameter, and described second taper seat little upper greatly, should Second taper seat upper end is connected with described plane the inner, the outer end of this plane and described 3rd lower end, face of cylinder phase Even.Described steel disc 6 is embedded in gum cover 4, and is positioned at the second taper seat of gum cover 4, and the number of steel disc 6 Mesh adjusts accordingly according to practical situation, and these steel discs 6 are uniform along the circumference of gum cover 4.
The axial line of described lining 7 centre bore and gum cover 4 axial line are on same straight line, and this centre bore is Two-part structure, its underpart is cylindrical hole, and its top is up big and down small conical bore.Described lining 7 top External diameter more than the external diameter of bottom, form a step surface between this big footpath section and path section, and lining 7 The while of big footpath section, the 3rd face of cylinder with the described hole wall to splitted cover board 2 centre bore and gum cover 4 centre bore is close to, In the plane laminating of the step surface of lining 7 and gum cover 4 centre bore, and the path section insertion gum cover 4 of lining 7 In the breach on central hole the second taper seat top.
The foregoing is only presently preferred embodiments of the present invention, not with the present invention for limiting, all at this Any amendment, equivalent and the improvement etc. made within bright spirit and principle, should be included in the present invention Protection domain within.

Claims (1)

1. a self-sealing head glue core assembly, it is characterised in that: include gum cover (4), steel disc (6) and lining (7), wherein gum cover (4) upper end level is provided with a flanging (4a), the gum cover below this flanging (4) outer wall is combinatorial surface, is followed successively by connected the first taper seat, first face of cylinder, the second circle from top to bottom The conical surface and second face of cylinder, and first and second taper seat is the most up big and down small;The hole of described gum cover (4) centre bore Wall is combinatorial surface, be followed successively by from the bottom up connected the first taper seat, first face of cylinder, arcwall face, second The face of cylinder, the second taper seat, plane and the 3rd face of cylinder, wherein the first taper seat is up-small and down-big, described arc Shape face is the arcwall face of depression, and the diameter on described second face of cylinder is more than the first face of cylinder diameter, and described Under second taper seat little upper greatly, this second taper seat upper end is connected with described plane the inner, the outer end of this plane It is connected with described 3rd lower end, the face of cylinder;Described steel disc (6) is embedded in gum cover (4), and is positioned at gum cover (4) At second taper seat of centre bore;
The axial line of described lining (7) centre bore and gum cover (4) axial line are on same straight line, in this Central hole is two-part structure, and bottom is cylindrical hole, and top is up big and down small conical bore;Described lining (7) The external diameter on top, more than the external diameter of bottom, forms a step surface, and lining between this big footpath section and path section (7) bottom of big footpath section is close to the 3rd face of cylinder of described gum cover (4) centre bore, the platform of lining (7) The plane laminating of terrace and gum cover (4) centre bore, and path section insertion gum cover (4) center of lining (7) In the breach on the second taper seat top, hole.
CN201410538037.XA 2014-10-13 2014-10-13 A kind of self-sealing head glue core assembly Active CN104329042B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410538037.XA CN104329042B (en) 2014-10-13 2014-10-13 A kind of self-sealing head glue core assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410538037.XA CN104329042B (en) 2014-10-13 2014-10-13 A kind of self-sealing head glue core assembly

Publications (2)

Publication Number Publication Date
CN104329042A CN104329042A (en) 2015-02-04
CN104329042B true CN104329042B (en) 2016-08-31

Family

ID=52403837

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410538037.XA Active CN104329042B (en) 2014-10-13 2014-10-13 A kind of self-sealing head glue core assembly

Country Status (1)

Country Link
CN (1) CN104329042B (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2014432C1 (en) * 1991-11-29 1994-06-15 Куртов Вениамин Дмитриевич Wellhead sealing device
CN2635898Y (en) * 2003-08-08 2004-08-25 刘景三 Self-sealing packer
CN101392635A (en) * 2008-07-22 2009-03-25 中国海洋石油总公司 Novel self-sealing blowout preventer
CN202031522U (en) * 2011-01-28 2011-11-09 四川内江宏生石油机械有限公司 Multipurpose small-sized rotary blowout preventer
CN203796211U (en) * 2014-01-22 2014-08-27 任丘市博鑫石油机械制造有限公司 Well sealing device
CN204225828U (en) * 2014-10-13 2015-03-25 重庆中重石油机械有限公司 Self-sealing head glue core assembly

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2014432C1 (en) * 1991-11-29 1994-06-15 Куртов Вениамин Дмитриевич Wellhead sealing device
CN2635898Y (en) * 2003-08-08 2004-08-25 刘景三 Self-sealing packer
CN101392635A (en) * 2008-07-22 2009-03-25 中国海洋石油总公司 Novel self-sealing blowout preventer
CN202031522U (en) * 2011-01-28 2011-11-09 四川内江宏生石油机械有限公司 Multipurpose small-sized rotary blowout preventer
CN203796211U (en) * 2014-01-22 2014-08-27 任丘市博鑫石油机械制造有限公司 Well sealing device
CN204225828U (en) * 2014-10-13 2015-03-25 重庆中重石油机械有限公司 Self-sealing head glue core assembly

Also Published As

Publication number Publication date
CN104329042A (en) 2015-02-04

Similar Documents

Publication Publication Date Title
CN104265333B (en) Under high hydraulic condition, push-bench originates hole water-stopping sealing device and method
CN204060602U (en) A kind of bimetallic (spring cone) seal formula casing head
CN104494836A (en) Small aircraft fuel tank draining valve switch
CN104329042B (en) A kind of self-sealing head glue core assembly
CN204225828U (en) Self-sealing head glue core assembly
CN204225827U (en) Self-sealing head
CN104295259B (en) A kind of self-sealing head
CN105902149B (en) Pot cover and its float-controlled valve, pressure cooker
CN208489542U (en) The electric cabinet of energy self-sealing cable via hole
CN104653140A (en) Wellhead anti-theft device
CN109372461A (en) Blowout out of control wellhead assembly remapping method
CN204239127U (en) A kind of turbine chamber with automatic inflating device structure
CN204627497U (en) Pressure release type end cap
CN202970598U (en) High-pressure casing head component
CN203717978U (en) Four-eccentric butterfly valve structure for preventing sealing ring from rapid abrasion
CN206376781U (en) A kind of metal sealing hanging device of oil sleeve
CN206246785U (en) A kind of corrosion-resistant bonnet
CN208237326U (en) A kind of oil field pipe plugging device
CN216519838U (en) Actuating mechanism and valve connection structure with water leakage groove design
CN205330955U (en) A oil feed structure for oil pump
CN210068080U (en) Oil drain device
CN204825937U (en) Precipitation well shut -in well structure
CN203743481U (en) Upper mounted fixed ball valve
CN205822263U (en) Efficient sealed manhole
CN105413297A (en) Anti-thunder filter secondary lock device

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant