CN104329042B - A kind of self-sealing head glue core assembly - Google Patents
A kind of self-sealing head glue core assembly Download PDFInfo
- 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
Links
- 239000003292 glue Substances 0.000 title claims abstract description 12
- 238000007789 sealing Methods 0.000 title claims abstract description 11
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 9
- 239000010959 steel Substances 0.000 claims abstract description 9
- 238000010030 laminating Methods 0.000 claims abstract description 4
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 238000005553 drilling Methods 0.000 abstract description 16
- 230000015572 biosynthetic process Effects 0.000 abstract 2
- 210000004907 gland Anatomy 0.000 description 3
- 239000007789 gas Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well 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
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.
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)
| 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 |
-
2014
- 2014-10-13 CN CN201410538037.XA patent/CN104329042B/en active Active
Patent Citations (6)
| 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 |
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| 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 |