CN112983331A - Hydraulic double-gate plate well plugging device - Google Patents
Hydraulic double-gate plate well plugging device Download PDFInfo
- Publication number
- CN112983331A CN112983331A CN202110316965.1A CN202110316965A CN112983331A CN 112983331 A CN112983331 A CN 112983331A CN 202110316965 A CN202110316965 A CN 202110316965A CN 112983331 A CN112983331 A CN 112983331A
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- China
- Prior art keywords
- hydraulic
- wedge
- well
- sliding block
- hook
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- 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.)
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- 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
-
- 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
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/02—Valve arrangements for boreholes or wells in well heads
Abstract
The invention provides a hydraulic double-gate plate well plugging device. Relates to the technical field of oil field well control devices. The hydraulic wedge-shaped well shut-in assembly comprises a hydraulic wedge-shaped well shut-in assembly, a hydraulic wedge-shaped well shut-in assembly and a manual gate plate well shut-in assembly. The invention has the following beneficial effects: the piston rod of the hydraulic cylinder extends out to press the sliding block to the left, the large spring is compressed, the hook is limited by the stop block, the energy of the hydraulic cylinder acting is stored in the large spring, when a cable or a steel cable is cut or a well is quickly sealed, the electromagnetic suction head is electrified, the electromagnetic suction head sucks out the stop block through electromagnetic force, the limit of the sliding block is released, the sliding block of the hydraulic wedge-shaped well sealing assembly and the hydraulic shearing assembly moves rightwards quickly under the elastic force of the large spring, and the movable shearing blade moves to the fixed shearing blade for shearing; the wedge flashboard removes to the wedge downthehole and seals the well, and it is fast to have a shut-in well, and the shearing force is big, need not operating personnel and be close to the well head and can cut, seal the well operation, and the security of operation is high, easy operation.
Description
The technical field is as follows:
the invention relates to the technical field of oil field well control devices, in particular to a hydraulic double-gate plate well plugging device.
Background art:
the blowout preventer is a key part of a well control device, is mainly used for drilling, pilot production, midway testing of oil testing, downhole operation of new well perforation, oil fishing and the like, controls wellhead pressure in operation, effectively prevents blowout accidents, must be provided with the blowout preventer to ensure the safety of operators, can use cables or steel cables when performing downhole operation such as oil fishing and the like, needs to use an additional cutting device in the using process, is inconvenient to operate and has higher requirements on the blowout preventer;
notice No. CN 105298428A discloses horizontal bar is from shearing formula high pressure blowout preventer, make full use of the positive, reverse thread back and forth movement of lead screw accomplish quick automatically cropped cable or steel cable, from the function of blowout preventer, reduce intensity of labour and operating cost, however in this technical scheme, still realize above-mentioned function through the manual work rotation lead screw, the speed of blowout preventer, shearing still depends on operating personnel, operating personnel still need operate at the well head, have the potential safety hazard and operate and can't effectively control.
The invention content is as follows:
in order to solve the problems, the invention provides a hydraulic double-gate plate well plugging device.
The technical scheme of the invention is as follows: a hydraulic double-gate-plate well sealer comprises a hydraulic wedge-shaped well sealing assembly, wherein the upper part of a lower shell of the hydraulic wedge-shaped well sealing assembly is in flange sealing connection with an upper shell of a hydraulic shearing assembly, the upper shell of the hydraulic shearing assembly is transversely provided with a fixed shearing blade and a movable shearing blade, the movable shearing blade is fixedly connected with a sliding block, two sides of the sliding block are provided with guide holes in clearance fit connection with two parallel guide columns, a large spring is arranged between the sliding block and the inner wall of the left side of the upper shell, the sliding block is provided with a hook outside the guide columns, the right side of the hook is provided with two hydraulic cylinders parallel to the guide columns, a cylinder barrel of each hydraulic cylinder is fixedly connected;
a hook of the sliding block is hung with a stop block arranged on the upper shell, the stop block is connected with the upper shell through a small spring, the stop block passes through the small spring and extends out of the upper shell, the stop block can elastically move in a direction of separating from the hook, and guide inclined planes are arranged in the mutual approaching directions of the stop block and the hook;
the structure of hydraulic pressure wedge well sealing subassembly is similar with the structure of hydraulic pressure shearing assembly, and its difference lies in, the sliding block right side fixed connection wedge flashboard of hydraulic pressure wedge well sealing subassembly, and wedge flashboard position is opened on the center tube of lower casing has the wedge hole, and the center tube lower part of lower casing is equipped with the flange.
The lower part of the hydraulic wedge-shaped well sealing component is provided with a manual flashboard well sealing component.
The contact surface of the hook and the stop block is provided with a roller.
An electromagnetic suction head is sleeved outside the stop blocks extending out of the upper shell and the lower shell.
When the hook is hooked with the stop block, the big spring is in the maximum compression state.
The invention has the following beneficial effects: the hydraulic wedge-shaped well sealing assembly and the hydraulic shearing assembly are pushed to the left by extending a piston rod of the hydraulic cylinder, the large spring is compressed, a hook of the sliding block is limited by the stop block when moving to the left side of the stop block, energy of work done by the hydraulic cylinder is stored in the large spring, when a cable or a steel cable needs to be sheared or a well needs to be quickly sealed, the electromagnetic suction head is electrified, the electromagnetic suction head sucks out the stop block through electromagnetic force, the limit of the sliding block is relieved, the sliding block of the hydraulic wedge-shaped well sealing assembly and the hydraulic shearing assembly quickly moves to the right under the elastic force of the large spring, and the movable shearing blade moves to the fixed shearing blade for shearing; the wedge flashboard removes to the wedge downthehole and seals the well, and it is fast to have a shut-in well, and the shearing force is big, need not operating personnel and be close to the well head and can cut, shut-in well operation, and the security of operation is high, and easy operation can carry out manual shut-in well simultaneously and carry out routine maintenance to the packing box.
Description of the drawings:
FIG. 1 is a schematic structural view of the present invention
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
fig. 3 is a cross-sectional view B-B of fig. 1.
In the figure, 1-a manual gate plate well sealing assembly, 2-a hydraulic wedge well sealing assembly, 3-a hydraulic shearing assembly, 4-an upper shell, 5-a fixed shearing edge, 6-a hydraulic cylinder, 7-a movable shearing edge, 8-a sliding block, 9-a stop block, 10-a small spring, 11-a large spring, 12-a hook, 13-a roller, 14-an electromagnetic suction head, 15-a wedge gate plate, 16-a wedge hole, 17-a lower shell and 18-a guide column.
The specific implementation mode is as follows:
the invention will be further described with reference to the accompanying drawings in which:
as shown in fig. 1 and fig. 2 to 3, a hydraulic double-gate blowout preventer comprises a hydraulic wedge blowout preventer component 2, wherein an upper shell 4 of a hydraulic shearing component 3 is connected with an upper shell 17 of the hydraulic wedge blowout preventer component 2 in a flange sealing manner, the upper shell 4 of the hydraulic shearing component 3 is transversely provided with a fixed shearing edge 5 and a movable shearing edge 7, the movable shearing edge 7 is fixedly connected with a sliding block 8, two sides of the sliding block 8 are provided with guide holes which are in clearance fit with two parallel guide columns 18, a large spring 11 is arranged between the sliding block 8 and the inner wall of the left side of the upper shell 4, the sliding block 8 is provided with a hook 12 on the outer side of each guide column 18, the right side of the hook 12 is provided with two hydraulic cylinders 6 which are parallel to the guide columns 18, a cylinder barrel of each hydraulic cylinder 6 is fixedly connected to;
a hook 12 of the sliding block 8 is hung with a stop dog 9 arranged on the upper shell 4, the stop dog 9 is connected with the upper shell 4 through a small spring 10, the stop dog 9 passes through the small spring 10 and extends out of the upper shell 4, the stop dog 9 can elastically move in a direction of separating from the hook 12, and the stop dog 9 and the hook 12 are provided with guide inclined planes in the mutual approaching direction;
the structure of hydraulic pressure wedge well sealing subassembly 2 is similar with hydraulic pressure shearing assembly 3's structure, and its difference lies in, 8 right sides fixed connection wedge flashboards 15 of sliding block of hydraulic pressure wedge well sealing subassembly 2, and wedge flashboard 15 position is opened on the center tube of casing 17 down has wedge hole 16, and the center tube lower part of casing 17 is equipped with the flange down.
The lower part of the hydraulic wedge-shaped well sealing component 2 is provided with a manual flashboard well sealing component 1 which is used for packing and sealing a common manual well sealing maintenance packing box.
The contact surface of the hook 12 and the stop block 9 is provided with a roller 13.
An electromagnetic suction head 14 is sleeved outside the stop block 9 extending out of the upper shell 4 and the lower shell 17, and the roller 13 can reduce the friction force between the stop block 9 and the hook 12 and reduce the resistance of the electromagnetic suction head 14.
When the hook 12 is hooked with the stopper 9, the large spring 11 is in a maximum compression state.
The piston rod of the hydraulic cylinder 6 extends out to press the sliding blocks 8 of the hydraulic wedge-shaped well sealing assembly 2 and the hydraulic shearing assembly 3 to the left, the large spring 11 is compressed, the hook 12 of the sliding block 8 is limited by the limit block 9 when moving to the left side of the limit block 9, the energy applied by the hydraulic cylinder 6 is stored in the large spring 11, when a cable or a steel cable needs to be sheared or a well needs to be quickly sealed, the electromagnetic suction head 14 is electrified, the limit block 9 is sucked out by the electromagnetic force of the electromagnetic suction head 14, the limit of the sliding block 8 is released, the sliding blocks 8 of the hydraulic wedge-shaped well sealing assembly 2 and the hydraulic shearing assembly 3 quickly move to the right under the elasticity of the large spring 11, and the movable shearing blade 7 moves towards the fixed shearing; the wedge flashboard 15 removes to wedge 16 and seals the well, and it is fast to have a shut-in well, and the shearing force is big, need not operating personnel and be close to the well head and can cut, shut-in well operation, and the security of operation is high, and easy operation can carry out manual shut-in well simultaneously and carry out routine maintenance to the packing box.
Claims (5)
1. A hydraulic double-ram blowout preventer, includes hydraulic pressure wedge-shaped blowout preventer subassembly (2), its characterized in that: the upper part of a lower shell (17) of the hydraulic wedge-shaped well sealing component (2) is in flange sealing connection with an upper shell (4) of the hydraulic shearing component (3), the upper shell (4) of the hydraulic shearing component (3) is transversely provided with a fixed shearing blade (5) and a movable shearing blade (7), the movable shearing blade (7) is fixedly connected with a sliding block (8), two sides of the sliding block (8) are provided with guide holes in clearance fit with two parallel guide columns (18), a large spring (11) is arranged between the sliding block (8) and the inner wall of the left side of the upper shell (4), the sliding block (8) is provided with a hook (12) on the outer side of each guide column (18), the right side of the hook (12) is provided with two hydraulic cylinders (6) parallel to the guide columns (18), a cylinder barrel of each hydraulic cylinder (6) is fixedly connected to the right side of the upper shell (;
a hook (12) of the sliding block (8) is hung with a stop block (9) arranged on the upper shell (4), the stop block (9) is connected with the shell (4) through a small spring (10), the stop block (9) penetrates through the small spring (10) and extends out of the upper shell (4), the stop block (9) can elastically move in the direction of separating from the hook (12), and guide inclined planes are arranged in the directions of mutual approaching of the stop block (9) and the hook (12);
the structure of hydraulic pressure wedge well sealing subassembly (2) is similar with the structure of hydraulic pressure shearing assembly (3), and its difference lies in, sliding block (8) right side fixed connection wedge flashboard (15) of hydraulic pressure wedge well sealing subassembly (2), wedge flashboard (15) position, it has wedge hole (16) to open on the center tube of casing (17) down, and the center tube lower part of casing (17) is equipped with the flange down.
2. A hydraulic dual ram blowout preventer according to claim 1, wherein: the lower part of the hydraulic wedge-shaped well sealing component (2) is provided with a manual gate plate well sealing component (1).
3. A hydraulic dual ram blowout preventer according to claim 1, wherein: the contact surface of the hook (12) and the stop block (9) is provided with a roller (13).
4. A hydraulic dual ram blowout preventer according to claim 1, wherein: an electromagnetic suction head (14) is sleeved outside the stop block (9) extending out of the upper shell (4) and the lower shell (17).
5. A hydraulic dual ram blowout preventer according to claim 1, wherein: when the hook (12) and the stop block (9) are hung together, the big spring (11) is in the maximum compression state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110316965.1A CN112983331B (en) | 2021-03-24 | 2021-03-24 | Hydraulic double-gate plate well plugging device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110316965.1A CN112983331B (en) | 2021-03-24 | 2021-03-24 | Hydraulic double-gate plate well plugging device |
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| Publication Number | Publication Date |
|---|---|
| CN112983331A true CN112983331A (en) | 2021-06-18 |
| CN112983331B CN112983331B (en) | 2021-12-07 |
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| CN202110316965.1A Active CN112983331B (en) | 2021-03-24 | 2021-03-24 | Hydraulic double-gate plate well plugging device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116591644A (en) * | 2023-07-17 | 2023-08-15 | 大庆市天德忠石油科技有限公司 | Hydraulic sand blasting perforation choke manifold |
| CN117277168A (en) * | 2023-11-23 | 2023-12-22 | 牡丹江天擎科技有限公司 | Oil field fluid pressure type well head cable protection fixing device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116591644A (en) * | 2023-07-17 | 2023-08-15 | 大庆市天德忠石油科技有限公司 | Hydraulic sand blasting perforation choke manifold |
| CN116591644B (en) * | 2023-07-17 | 2023-09-19 | 大庆市天德忠石油科技有限公司 | Hydraulic sand blasting perforation choke manifold |
| CN117277168A (en) * | 2023-11-23 | 2023-12-22 | 牡丹江天擎科技有限公司 | Oil field fluid pressure type well head cable protection fixing device |
| CN117277168B (en) * | 2023-11-23 | 2024-02-02 | 牡丹江天擎科技有限公司 | Oil field fluid pressure type well head cable protection fixing device |
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| CN112983331B (en) | 2021-12-07 |
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