CN104405327A - Variable diameter ram monomer - Google Patents
Variable diameter ram monomer Download PDFInfo
- Publication number
- CN104405327A CN104405327A CN201410537407.8A CN201410537407A CN104405327A CN 104405327 A CN104405327 A CN 104405327A CN 201410537407 A CN201410537407 A CN 201410537407A CN 104405327 A CN104405327 A CN 104405327A
- Authority
- CN
- China
- Prior art keywords
- variable diameter
- ram
- breach
- monomer
- rubber core
- 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.)
- Pending
Links
- 239000000178 monomer Substances 0.000 title claims abstract description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 23
- 229910052742 iron Inorganic materials 0.000 claims abstract description 13
- 239000003292 glue Substances 0.000 claims description 23
- 150000002505 iron Chemical class 0.000 claims description 3
- 238000005553 drilling Methods 0.000 abstract description 13
- 238000007789 sealing Methods 0.000 abstract description 9
- 230000000149 penetrating Effects 0.000 abstract 2
- 230000002093 peripheral Effects 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000005755 formation reaction Methods 0.000 description 3
- 230000000875 corresponding Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 230000000505 pernicious Effects 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
- E21B33/06—Blow-out preventers, i.e. apparatus closing around a drill pipe, e.g. annular blow-out preventers
Abstract
The invention discloses a variable diameter ram monomer. A guiding key is fixedly arranged at the bottom of a ram body in the variable diameter ram monomer; a top sealing rubber core is fixedly arranged on the ram body; the inner end of the top sealing rubber core is fixed with the outer circular surface of a variable diameter rubber core; a vertically penetrating small semicircular notch is formed in the middle part of an inner end face of the variable diameter rubber core; big semicircular notches are symmetrically formed in the variable diameter rubber core above and under the small semicircular notch; radial rubber-avoiding notches are formed in the two big semicircular notches along the peripheral direction; iron sheets are respectively fixedly arranged on the top surface and the bottom surface of the inner end of the variable diameter rubber core; the two big semicircular notches are covered by the iron sheets; vertically penetrating semicircular notches are formed in the inner ends of the iron sheets; the size of the semicircular notches is identical to the size of the big semicircular notches; the axes of the semicircular notches are on the same straight line. Two variable diameter ram monomers are butt-jointed into a variable diameter ram assembly; the ram assembly can be used for sealing drilling rods with different diameters within a certain size scope; the sealing property is excellent, so that the variable diameter sealing is realized.
Description
Technical field
The invention belongs to oil-drilling field, specifically, particularly relate to a kind of variable bore ram monomer.
Background technology
Suction preventer is a kind of equipment conventional in oil drilling, and it is for sealing drilling rod, to prevent the pernicious gas in well from spraying, forms " blowout " phenomenon.Existing suction preventer is sizing preventer, can not reducing, and tracing it to its cause is that therefore flashboard assembly can not reducing, and flashboard assembly is docked by two flashboard monomers and forms.Therefore, need the flashboard assembly changing dimension when the drilling rod of different-diameter is sealed, complicated operation, effort, and need the flashboard assembly arranging sizes specification for subsequent use, can equipment cost be increased so again, be badly in need of solving above-mentioned technical barrier for this reason.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of variable bore ram monomer that can seal different-diameter drilling rod within the scope of certain size.
Technical scheme of the present invention is as follows: a kind of variable bore ram monomer, it is characterized in that: this variable bore ram monomer comprises flashboard body (1) and top packing unit (3), wherein flashboard body (1) bottom is installed with guiding strong (2); Described top packing unit (3) is installed on flashboard body (1), the inner and reducing glue core (4) periphery of this top packing unit are fixed, and the middle part of reducing glue core (4) inner face is provided with the small semicircle v notch v (4a) of a up/down perforation; The reducing glue core (4) of described small semicircle v notch v (4a) upper and lower is arranged with a large semi-circular breach (4b), the axial line of these three breach on same straight line, and two large semi-circular breach (4b) is all circumferentially provided with radial direction and allows glue breach (4c); The end face that described reducing glue core (4) is inner and bottom surface are installed with one piece of iron plate (5) respectively, two described large semi-circular breach (4b) cover by this iron plate, and iron plate (5) the inner has the semicircular indentations of a up/down perforation, the size of this semicircular indentations is identical with described large semi-circular breach (4b), and both axial lines are on same straight line.
In the present case, the radius of described small semicircle v notch v (4a) is 10mm, and the radius of large semi-circular breach (4b) is 15mm.During use, by the flashboard assembly that two flashboard monomer docking formation one complete.When to diameter being the drilling rod sealing of 20mm, directly seal by small semicircle v notch v (4a); When the drilling rod of diameter between 20-30mm is sealed, at this moment by two Horizontal lock mandrels extruding reducing glue core (4), to allow large semi-circular breach (4b) that deformation occurs, and with the shaft close contact of drilling rod, to seal drilling rod, and the present invention can seal the drilling rod that maximum gauge is 30mm.
Adopt above technical scheme, formation variable bore ram assembly is docked in two the present invention, this flashboard assembly can seal the drilling rod of different-diameter within the scope of certain size, good airproof performance, thus realize reducing sealing, so just eliminate the trouble changing corresponding specification flashboard, the flashboard that also need not prepare plurality of specifications is for subsequent use, thus greatly improve functional performance of the present invention, and this preventer structure is simple, easy to implement.
In the present case, the inner and reducing glue core (4) periphery of described top packing unit connect and fix, and the radial direction on described large semi-circular breach (4b) allows glue breach (4c) be string configuration.
Beneficial effect: formation variable bore ram assembly is docked in two the present invention, this flashboard assembly can seal the drilling rod of different-diameter within the scope of certain size, good airproof performance, thus realize reducing sealing, so just eliminate the trouble changing corresponding specification flashboard, the flashboard that also need not prepare plurality of specifications is for subsequent use, thus greatly improves functional performance of the present invention, and this preventer structure is simple, easy to implement.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of reducing glue core 4 in Fig. 1;
Fig. 3 is the A direction view of Fig. 2;
Fig. 4 is the B direction view of Fig. 2.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described:
As shown in Figures 1 to 4, this variable bore ram monomer, top packing unit 3, reducing glue core 4 and iron plate 5 strong 2 primarily of flashboard body 1, guiding is formed.Wherein, be installed with guiding strong 2 bottom flashboard body 1 by screw, this guiding strong 2 is preferably flat key.Described top packing unit 3 is installed on flashboard body 1, and the inner and reducing glue core 4 periphery of this top packing unit 3 connect and fix.Further, the middle part of reducing glue core 4 inner face is provided with the small semicircle v notch v 4a of a up/down perforation, and the radius of this small semicircle v notch v 4a elects 10mm as in the present embodiment.The reducing glue core 4 of described small semicircle v notch v 4a upper and lower is arranged with a large semi-circular breach 4b, the axial line of these two large semi-circular breach 4b and small semicircle v notch v 4a on same straight line, and the radius of large semi-circular breach 4b excellent be in the present embodiment 15mm.Further, two large semi-circular breach 4b being all circumferentially provided with radial direction allows glue breach 4c, this radial direction allow glue breach 4c be string configuration.
End face and the bottom surface of described reducing glue core 4 the inner are installed with one piece of iron plate 5 respectively, and two described large semi-circular breach 4b cover by this iron plate 5.Have the semicircular indentations (not marking in figure) of a up/down perforation in the inner of iron plate 5, the size of this semicircular indentations is identical with described large semi-circular breach 4b, and the axial line of these two breach is on same straight line.
The foregoing is only preferred embodiment of the present invention, is not restriction with the present invention, and all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (2)
1. a variable bore ram monomer, is characterized in that: this variable bore ram monomer comprises flashboard body (1) and top packing unit (3), and wherein flashboard body (1) bottom is installed with guiding strong (2); Described top packing unit (3) is installed on flashboard body (1), the inner and reducing glue core (4) periphery of this top packing unit are fixed, and the middle part of reducing glue core (4) inner face is provided with the small semicircle v notch v (4a) of a up/down perforation; The reducing glue core (4) of described small semicircle v notch v (4a) upper and lower is arranged with a large semi-circular breach (4b), the axial line of these three breach on same straight line, and two large semi-circular breach (4b) is all circumferentially provided with radial direction and allows glue breach (4c); The end face that described reducing glue core (4) is inner and bottom surface are installed with one piece of iron plate (5) respectively, two described large semi-circular breach (4b) cover by this iron plate, and iron plate (5) the inner has the semicircular indentations of a up/down perforation, the size of this semicircular indentations is identical with described large semi-circular breach (4b), and both axial lines are on same straight line.
2. variable bore ram monomer according to claim 1, it is characterized in that: the inner and reducing glue core (4) periphery on described top packing unit (3) connect and fix, and the radial direction on described large semi-circular breach (4b) allows glue breach (4c) be string configuration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410537407.8A CN104405327A (en) | 2014-10-13 | 2014-10-13 | Variable diameter ram monomer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410537407.8A CN104405327A (en) | 2014-10-13 | 2014-10-13 | Variable diameter ram monomer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104405327A true CN104405327A (en) | 2015-03-11 |
Family
ID=52642984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410537407.8A Pending CN104405327A (en) | 2014-10-13 | 2014-10-13 | Variable diameter ram monomer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104405327A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112983351A (en) * | 2021-05-20 | 2021-06-18 | 四川新为橡塑有限公司 | Reducing flashboard rubber core |
| CN113323617A (en) * | 2021-08-03 | 2021-08-31 | 四川新为橡塑有限公司 | Novel variable-diameter gate plate rubber core |
| CN114396241B (en) * | 2022-03-28 | 2022-06-10 | 四川新为橡塑有限公司 | Double-layer sealed spherical rubber core and annular blowout preventer |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4332367A (en) * | 1980-05-02 | 1982-06-01 | Nl Industries, Inc. | Blowout preventer having a variable ram seal |
| CN2746118Y (en) * | 2004-10-14 | 2005-12-14 | 河北华北石油荣盛机械制造有限公司 | Reducing flashboard for well drilling |
| CN201460794U (en) * | 2009-06-05 | 2010-05-12 | 宝鸡石油机械有限责任公司 | Rotary variable-diameter blowout preventer flashboard |
| US20100294482A1 (en) * | 2008-02-01 | 2010-11-25 | Cameron International Corporation | Variable Bore Packer for a Blowout Preventer |
| CN204225833U (en) * | 2014-10-13 | 2015-03-25 | 重庆中重石油机械有限公司 | variable bore ram monomer |
-
2014
- 2014-10-13 CN CN201410537407.8A patent/CN104405327A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4332367A (en) * | 1980-05-02 | 1982-06-01 | Nl Industries, Inc. | Blowout preventer having a variable ram seal |
| CN2746118Y (en) * | 2004-10-14 | 2005-12-14 | 河北华北石油荣盛机械制造有限公司 | Reducing flashboard for well drilling |
| US20100294482A1 (en) * | 2008-02-01 | 2010-11-25 | Cameron International Corporation | Variable Bore Packer for a Blowout Preventer |
| CN201460794U (en) * | 2009-06-05 | 2010-05-12 | 宝鸡石油机械有限责任公司 | Rotary variable-diameter blowout preventer flashboard |
| CN204225833U (en) * | 2014-10-13 | 2015-03-25 | 重庆中重石油机械有限公司 | variable bore ram monomer |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112983351A (en) * | 2021-05-20 | 2021-06-18 | 四川新为橡塑有限公司 | Reducing flashboard rubber core |
| CN113323617A (en) * | 2021-08-03 | 2021-08-31 | 四川新为橡塑有限公司 | Novel variable-diameter gate plate rubber core |
| CN113323617B (en) * | 2021-08-03 | 2021-11-02 | 四川新为橡塑有限公司 | Novel variable-diameter gate plate rubber core |
| CN114396241B (en) * | 2022-03-28 | 2022-06-10 | 四川新为橡塑有限公司 | Double-layer sealed spherical rubber core and annular blowout preventer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150311 |
|
| RJ01 | Rejection of invention patent application after publication |