CN204113189U - One is variable bore ram, flashboard assembly and preventer on a large scale - Google Patents
One is variable bore ram, flashboard assembly and preventer on a large scale Download PDFInfo
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- CN204113189U CN204113189U CN201420486704.XU CN201420486704U CN204113189U CN 204113189 U CN204113189 U CN 204113189U CN 201420486704 U CN201420486704 U CN 201420486704U CN 204113189 U CN204113189 U CN 204113189U
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- flashboard
- large scale
- variable bore
- bore ram
- packing unit
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Abstract
The utility model discloses a kind of variable bore ram on a large scale for preventer, comprise, a pair flashboard assembly, described in each, flashboard assembly comprises: flashboard body, described flashboard body top is provided with a top slot, its middle part, end is provided with a cavity, and when described a pair flashboard assembly is symmetrical arranged, the cavity of two flashboard bodies is relative position; Top packing unit, is arranged in top slot; Front packing unit, is arranged in the cavity of flashboard end of body middle part, is connected with described flashboard body by a tight-hanged screw.The utility model can realize the drilling rod sealing different size when not changing flashboard assembly, sealing is reliable, stable, greatly reduces the number of times changing flashboard in preventer use procedure.
Description
Technical field
The utility model relates to oil, gas drilling safety control device field, is specifically related to one variable bore ram, flashboard assembly and preventer on a large scale.
Background technology
In oil, gas drilling process, formation fluid is once out of hand, just well kick or blowout out of control may occur.Blowout out of control can make down-hole situation complicated, cannot carry out normal drilling operability and even damage drilling equipment, destroys petroleum resources, pollutes natural environment and jeopardizes the safety of drilling implementer and Oil/gas Well.
Effectively to control blowout, must preventer be used.Flashboard is the critical component of preventer, and predominant use is control well mouth pressure in the processes such as drilling well, well workover, formation testing, effectively prevents gas blowout accident from occurring, realizes safe construction.
In prior art, the drilling rod of sealing different size need change the flashboard of corresponding specification, repeatedly changes flashboard, complex operation.
Utility model content
The purpose of this utility model is to provide one variable bore ram, flashboard assembly and preventer on a large scale, the drilling rod sealing different size can be realized when not changing flashboard assembly, sealing is reliable, stable, greatly reduces the number of times changing flashboard in preventer use procedure.
In order to achieve the above object, the utility model is achieved through the following technical solutions: a kind of variable bore ram on a large scale for preventer, is characterized in, comprises,
A pair flashboard assembly, described in each, flashboard assembly comprises:
Flashboard body, described flashboard body top is provided with a top slot, and its middle part, end is provided with a cavity, and when described a pair flashboard assembly is symmetrical arranged, the cavity of two flashboard bodies is relative position;
Top packing unit, is arranged in top slot;
Front packing unit, is arranged in the cavity of flashboard end of body middle part, is connected with described flashboard body by a tight-hanged screw.
Described top packing unit is semicircular arc, and its two ends are provided with parallels, and when described a pair flashboard assembly is symmetrical arranged, two top packing units are surrounded as an annulus.
Described front packing unit comprises: body, and described body is in " Ω " shape, and when described a pair flashboard assembly is symmetrical arranged, two body middle parts are surrounded as an annulus;
Multiple skeleton, described in the bossing being distributed on body, skeleton seals circular arc before the inner side of body projection forms one;
Two blocks of upper parallels, are symmetricly set on the top of body horizontal component; Described on each parallels comprise the first guiding shoulder and upper anti-plate squeezing;
Two pieces of lower padding irons, are symmetricly set on bottom and the both sides of body horizontal component, and each lower padding iron described is L shape structure, comprise the second guiding shoulder, lower anti-plate squeezing, the anti-plate squeezing in side;
Described skeleton can slide along the first guiding shoulder, the second guiding shoulder.
Described skeleton comprises the upper core, brace rod and the lower core that connect successively;
Described upper core and lower core appearance and size is in the horizontal direction consistent.
Described upper core and lower core adopt triangular structure.
Described upper core and lower core adopt the little acute angle chamfering structure of triangle.
The thickness of described upper core is greater than the thickness of lower core.
A kind of variable bore ram assembly, is characterized in, comprises variable bore ram on a large scale.
A kind of ram preventer, is characterized in, comprises variable bore ram on a large scale.
The utility model one on a large scale variable bore ram, flashboard assembly and preventer compared with prior art has the following advantages: because the packing unit baseplane, top of flashboard is smooth without step, substantially reducing the rubber deformation rate of the top packing unit when sealing macaroni, improving the application life of top packing unit; Because flashboard is provided with upper parallels and lower padding iron, ensure that the contact area of front seal face, effectively improve sealability and the application life of front packing unit; Because flashboard upper core and lower core appearance and size is in the horizontal direction consistent, adopt triangle little acute angle place chamfering structure, easy to process, make more to fit between skeleton from different drilling rod circular arc sealing surface; Because the upper core of flashboard is thick, lower core is thin, the sealing rubber of circular arc and the contact area of drilling rod before ensureing.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of a kind of variable bore ram on a large scale for preventer of the utility model.
Fig. 2 is the overall structure schematic diagram of front packing unit.
Fig. 3 is the schematic diagram of front packing unit sealing drilling rod.
Fig. 4 is front packing unit top view.
Fig. 5 is upper parallels structural representation.
Fig. 6 is lower padding iron structural representation.
Fig. 7 is the overall structure schematic diagram of skeleton.
Fig. 8 is the overall structure schematic diagram of preventer.
Detailed description of the invention
Below in conjunction with accompanying drawing, by describing a preferably specific embodiment in detail, the utility model is further elaborated.
As shown in Figure 1, a kind of variable bore ram on a large scale for preventer, comprise, a pair flashboard assembly, described in each, flashboard assembly comprises: flashboard body 1, and described flashboard body 1 top is provided with a top slot 11, and its middle part, end is provided with a cavity, when described a pair flashboard assembly is symmetrical arranged, the cavity of two flashboard bodies 1 is relative position; Top packing unit 2, is arranged in top slot 11; Front packing unit 3, is arranged in the cavity of middle part, flashboard body 1 end, is connected with described flashboard body 1 by a tight-hanged screw 4.
As shown in Fig. 1 composition graphs 3, top packing unit 2 is in semicircular arc, and its two ends are provided with parallels, and parallels is used for preventing rubber under high pressure extruding damage, also define the Deformation Flow direction of rubber.When described a pair flashboard assembly is symmetrical arranged, two top packing units 2 are surrounded as an annulus.The baseplane of top packing unit 2 is smooth without step, substantially reducing the rubber deformation rate of variable bore ram assembly top packing unit when sealing macaroni 6, improving the application life of top packing unit.
As shown in Figures 2 to 6, front packing unit 3 comprises: body 31, and described body 31 is in " Ω " shape, and when described a pair flashboard assembly is symmetrical arranged, two body 31 middle parts are surrounded as an annulus; Multiple skeleton 32, is distributed on the bossing of body 31, when sealing different drilling rod 6, skeleton 32 rotates under mutual extruding force effect, is close to drilling rod 6 exterior arc surface, uniform drilling rod 6 periphery, can effectively prevent glue core from extruding, described skeleton 32 is sealing circular arc 5 before the inner side of body 31 projection forms one; Two blocks of upper parallels 33, are symmetricly set on the top of body 31 horizontal component; As shown in Figure 5, described on each parallels 33 comprise the first guiding shoulder 331 and upper anti-plate squeezing 332; Two pieces of lower padding irons 34, are symmetricly set on bottom and the both sides of body 31 horizontal component, and as shown in Figure 6, each lower padding iron 34 described is L shape structure, comprises the second guiding shoulder 341, lower anti-plate squeezing 342, the anti-plate squeezing 343 in side; Described skeleton 32 can slide along the first guiding shoulder 331, second guiding shoulder 341.As shown in Figure 4, upper parallels 33 and lower padding iron 34 protrude flashboard part and define to front sealing and entirely surround structure.
According to the difference that upper parallels 33, lower padding iron 34 are stressed, design different thickness, under limited appearance and size condition, ensure that the contact area of front seal face, the sealability effectively improved and application life.
As shown in Figure 7, skeleton 32, ensure that rubber anti-extrusion ability in a high voltage state, application life and sealing reliability energy, and it comprises the upper core 321, brace rod 322 and the lower core 323 that connect successively; Described upper core 321 is consistent with lower core 323 appearance and size in the horizontal direction.Upper core 321 and lower core 323 adopt triangular structure.In the present embodiment, upper core 321 and lower core 323 adopt the little acute angle chamfering structure of triangle, easy to process, can ensure more to fit between skeleton from different drilling rod 6 circular arc sealing surface.Stressed different from lower core 323 according to upper core 321, design different thickness, the thickness of upper core 321 is greater than the thickness of lower core 323, ensure skeleton 32 anti-extrusion ability under high pressure, simultaneously, under limited appearance and size condition, the sealing rubber of circular arc 5 and the contact area of drilling rod 6 before ensure that to greatest extent.Brace rod 322 ensures upper core 321 and lower core 323 synchronizing moving.
Embody rule: top packing unit 2, front packing unit adopt method and metallic framework, the iron core sulfidization molding of injection molding.Fix with tight-hanged screw 4 after front packing unit loads flashboard body 1, then in top slot 11, load top packing unit 2, be assembled into variable bore ram assembly 10.This flashboard assembly 10 two is one pair, and one pair of flashboard assembly 10 is loaded ram preventer 20, realizes the drilling rod 6 of different size within the scope of sealing reducing.As Fig. 8, shown in composition graphs 3, variable bore ram assembly 10 is contained in preventer 20, moves under the action of hydraulic force of piston 30 to preventer 20 center, the drilling rod 6 sealing different size within the scope of reducing can be realized, greatly reduce the number of times changing flashboard in preventer 20 use procedure.When sealing different drilling rods 6, under piston 30 hydraulic drive, front sealing circular arc 5 contacts with drilling rod 6 exterior arc surface, the front end face of two front packing units 3 contacts, the metal iron cores such as upper parallels 33, lower padding iron 34, skeleton 32 can effectively prevent rubber under high pressure extruding damage, also define the Deformation Flow direction of rubber, improve sealing surface specific contact pressure.
Although content of the present utility model has done detailed introduction by above preferred embodiment, will be appreciated that above-mentioned description should not be considered to restriction of the present utility model.After those skilled in the art have read foregoing, for multiple amendment of the present utility model and substitute will be all apparent.Therefore, protection domain of the present utility model should be limited to the appended claims.
Claims (9)
1., for a variable bore ram on a large scale for preventer, it is characterized in that, comprise,
A pair flashboard assembly, described in each, flashboard assembly comprises:
Flashboard body (1), described flashboard body (1) top is provided with a top slot (11), and its middle part, end is provided with a cavity, and when described a pair flashboard assembly is symmetrical arranged, the cavity of two flashboard bodies (1) is relative position;
Top packing unit (2), is arranged in top slot (11);
Front packing unit (3), is arranged in the cavity of flashboard body (1) middle part, end, is connected with described flashboard body (1) by a tight-hanged screw (4).
2. variable bore ram on a large scale as claimed in claim 1, it is characterized in that, described top packing unit (2) is in semicircular arc, and its two ends are provided with parallels, and when described a pair flashboard assembly is symmetrical arranged, two tops packing unit (2) are surrounded as an annulus.
3. variable bore ram on a large scale as claimed in claim 1, it is characterized in that, described front packing unit (3) comprises: body (31), and described body (31) is in " Ω " shape, when described a pair flashboard assembly is symmetrical arranged, two bodies (31) middle part is surrounded as an annulus;
Multiple skeleton (32), is distributed on the bossing of body (31), described skeleton (32) sealing circular arc (5) before the inner side that body (31) is protruding forms;
Two blocks of upper parallels (33), are symmetricly set on the top of body (31) horizontal component; Described on each parallels (33) comprise the first guiding shoulder (331) and upper anti-plate squeezing (332);
Two pieces of lower padding irons (34), be symmetricly set on bottom and the both sides of body (31) horizontal component, described each lower padding iron (34) is L shape structure, comprises the second guiding shoulder (341), lower anti-plate squeezing (342), the anti-plate squeezing in side (343);
Described skeleton (32) can slide along the first guiding shoulder (331), the second guiding shoulder (341).
4. variable bore ram on a large scale as claimed in claim 3, it is characterized in that, described skeleton (32) comprises the upper core (321), brace rod (322) and the lower core (323) that connect successively;
Described upper core (321) is consistent with lower core (323) appearance and size in the horizontal direction.
5. variable bore ram on a large scale as claimed in claim 5, is characterized in that, described upper core (321) and lower core (323) adopt triangular structure.
6. variable bore ram on a large scale as claimed in claim 6, is characterized in that, described upper core (321) and lower core (323) adopt the little acute angle chamfering structure of triangle.
7. variable bore ram on a large scale as claimed in claim 5, it is characterized in that, the thickness of described upper core (321) is greater than the thickness of lower core (323).
8. a variable bore ram assembly, is characterized in that, comprises as the variable bore ram on a large scale of any one in claim 1 ~ 7.
9. a ram preventer, is characterized in that, comprises as the variable bore ram on a large scale of any one in claim 1 ~ 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420486704.XU CN204113189U (en) | 2014-08-27 | 2014-08-27 | One is variable bore ram, flashboard assembly and preventer on a large scale |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420486704.XU CN204113189U (en) | 2014-08-27 | 2014-08-27 | One is variable bore ram, flashboard assembly and preventer on a large scale |
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| Publication Number | Publication Date |
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| CN204113189U true CN204113189U (en) | 2015-01-21 |
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| CN201420486704.XU Active CN204113189U (en) | 2014-08-27 | 2014-08-27 | One is variable bore ram, flashboard assembly and preventer on a large scale |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104131798A (en) * | 2014-08-27 | 2014-11-05 | 上海神开石油化工装备股份有限公司 | Large-range variable-diameter flashboard for blowout preventer |
| CN108397439A (en) * | 2018-03-30 | 2018-08-14 | 苏州道森钻采设备股份有限公司 | A kind of movement of cylinder block type fluid pressure drive device |
| CN108488405A (en) * | 2018-03-30 | 2018-09-04 | 苏州道森钻采设备股份有限公司 | A kind of built-in reducing sealing extra large cable slide valve of cylinder body |
| CN116220605A (en) * | 2023-05-08 | 2023-06-06 | 沧州市德泰克钻井装备有限公司 | Blowout preventer ram device with sealing different pipe diameters under ultrahigh pressure |
-
2014
- 2014-08-27 CN CN201420486704.XU patent/CN204113189U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104131798A (en) * | 2014-08-27 | 2014-11-05 | 上海神开石油化工装备股份有限公司 | Large-range variable-diameter flashboard for blowout preventer |
| CN108397439A (en) * | 2018-03-30 | 2018-08-14 | 苏州道森钻采设备股份有限公司 | A kind of movement of cylinder block type fluid pressure drive device |
| CN108488405A (en) * | 2018-03-30 | 2018-09-04 | 苏州道森钻采设备股份有限公司 | A kind of built-in reducing sealing extra large cable slide valve of cylinder body |
| CN108488405B (en) * | 2018-03-30 | 2020-08-04 | 苏州道森钻采设备股份有限公司 | Cylinder built-in reducing sealing submarine cable gate valve |
| CN116220605A (en) * | 2023-05-08 | 2023-06-06 | 沧州市德泰克钻井装备有限公司 | Blowout preventer ram device with sealing different pipe diameters under ultrahigh pressure |
| CN116220605B (en) * | 2023-05-08 | 2023-08-15 | 沧州市德泰克钻井装备有限公司 | Blowout preventer ram device with sealing different pipe diameters under ultrahigh pressure |
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