CN215565836U - Wellhead hydraulic sealing blowout preventer for steel wire operation - Google Patents
Wellhead hydraulic sealing blowout preventer for steel wire operation Download PDFInfo
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- CN215565836U CN215565836U CN202121490656.8U CN202121490656U CN215565836U CN 215565836 U CN215565836 U CN 215565836U CN 202121490656 U CN202121490656 U CN 202121490656U CN 215565836 U CN215565836 U CN 215565836U
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- sealing
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- blowout preventer
- steel wire
- piston rod
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Abstract
The utility model discloses a wellhead hydraulic sealing blowout preventer for steel wire operation, which comprises a cylinder body, wherein a piston rod is arranged in the middle of the cylinder body, a pair of first sealing rings are arranged on the outer wall of the head of the piston rod, a pair of second sealing rings are arranged on the outer wall of the tail of the piston rod, a quick connector is arranged on the side wall of the cylinder body, a pressing cap is arranged at the top of the cylinder body, and a blowout preventing pipe connector is arranged at the tail of the cylinder body. The wellhead hydraulic sealing blowout preventer for steel wire operation has the advantages that: the blowout preventer utilizes the hydraulic blowout preventer, and can immediately realize ground pressurization to ensure sealing if the upper seal fails to work and an emergency occurs, thereby avoiding the environmental pollution caused by the ejection of gas, liquid and sundries at a wellhead.
Description
Technical Field
The utility model discloses oil extraction equipment, in particular to a wellhead hydraulic sealing blowout preventer for steel wire operation.
Background
In shale oil exploitation in the northeast China work area, steel wire well testing test operations such as capacity test in the open flow production seeking stage, flowing pressure well logging and the like must ensure that a well mouth does not puncture and leak during construction. The well head that uses at present prevents spouting the box and adopts rubber packing sealing steel wire, and the packing box pressure cap of screwing relies on the extrusion to the packing to reach sealed effect, and the manual machine operation can cause the damage to the packing, and needs operating personnel to ascend a height the operation, and the excessive deformation of sealing packing atress can lead to sealing performance to reduce, and the discharge such as gas-liquid debris in the well causes environmental pollution, well head out of control influence operation even.
SUMMERY OF THE UTILITY MODEL
The utility model provides a wellhead hydraulic sealing blowout preventer for steel wire operation, which is light, easy to assemble and disassemble, safe and reliable.
The utility model adopts the following technical scheme:
the wellhead hydraulic sealing blowout preventer for the steel wire operation is characterized by comprising a cylinder body, a piston rod is arranged in the middle of the cylinder body, a pair of first sealing rings are arranged on the outer wall of the head of the piston rod, a pair of second sealing rings are arranged on the outer wall of the tail of the piston rod, a quick connector is arranged on the side wall of the cylinder body, a pressing cap is arranged at the top of the cylinder body, and a blowout preventing pipe joint is arranged at the tail of the cylinder body.
As a preferred embodiment of the utility model, the top of the cylinder body is provided with a first sealing filler which is positioned inside the pressure cap.
As a preferred embodiment of the present invention, the tail of the cylinder body is provided with a second sealing packing, and the second sealing packing is located inside the lubricator joint.
As a preferred embodiment of the present invention, the first sealing filler and the second sealing filler are both rubber fillers.
The wellhead hydraulic sealing blowout preventer for steel wire operation has the advantages that: the blowout preventer utilizes the hydraulic blowout preventer, and can immediately realize ground pressurization to ensure sealing if the upper seal fails to work and an emergency occurs, thereby avoiding the environmental pollution caused by the ejection of gas, liquid and sundries at a wellhead.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a wellhead hydraulic seal blowout preventer for steel wire operation according to the present invention.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the scope of the present invention will be more clearly and clearly defined.
As shown in fig. 1, the wellhead hydraulic sealing blowout preventer for steel wire operation comprises a cylinder 4, a piston rod 5 is arranged in the middle of the cylinder 4, a pair of first sealing rings 8 is arranged on the outer wall of the head of the piston rod 5, a pair of second sealing rings 9 is arranged on the outer wall of the tail of the piston rod 5, a quick connector 3 is arranged on the side wall of the cylinder 4, a pressure cap 1 is arranged at the top of the cylinder 4, and a blowout preventer joint 7 is arranged at the tail of the cylinder 4.
The top of the cylinder 4 is provided with a first sealing packing 2, and the first sealing packing 2 is positioned inside the press cap 1.
The tail of the cylinder 4 is provided with a second sealing packing 6, and the second sealing packing 6 is positioned at the inner side of the lubricator joint 7.
The first sealing filler 2 and the second sealing filler 6 are both rubber fillers.
The operation of the wellhead hydraulic seal blowout preventer for wire line work will be described below.
First, the quick connector 3 is installed and connected to the hand pump with hydraulic lines. And connecting the lower joint of the blowout preventer box with the blowout preventer joint 7.
And then, when the steel wire is lifted up and lowered down, the pressure cap 1 is adjusted to compress the first sealing filler 2, and the steel wire is tightly held to realize blowout prevention. After reaching the testing depth, the upper pressing cap 1 is screwed and connected with a hydraulic pipeline to be pressed, and the piston rod 5 is pressed to move downwards to compress the second sealing filler 6, so that double sealing is realized, and safety is improved. And when the pressure in the well is high, the lower rubber packing is pressed upwards by the pressure in the well to form sealing automatically, so that the puncture is prevented.
The blowout preventer utilizes the hydraulic blowout preventer, and can immediately realize ground pressurization to ensure sealing if the upper seal fails to work and an emergency occurs, thereby avoiding the environmental pollution caused by the ejection of gas, liquid and sundries at a wellhead.
Without being limited thereto, any changes or substitutions that are not thought of through the inventive work should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.
Claims (4)
1. The utility model provides a well head hydraulic seal blowout preventer for steel wire operation, a serial communication port, well head hydraulic seal blowout preventer for steel wire operation contain a cylinder body (4), the middle part of cylinder body (4) be equipped with a piston rod (5), the head outer wall of piston rod (5) on be equipped with a pair of first sealing washer (8), the afterbody outer wall of piston rod (5) on be equipped with a pair of second sealing washer (9), the lateral wall of cylinder body (4) on be equipped with a quick-operation joint (3), the top of cylinder body (4) be equipped with one and press cap (1), the afterbody of cylinder body (4) be equipped with one and prevent gushing out union joint (7).
2. A wellhead hydraulic sealing blowout preventer according to claim 1, wherein the top of the cylinder body (4) is provided with a first sealing packing (2), and the first sealing packing (2) is positioned inside the pressure cap (1).
3. A wellhead hydraulic sealing blowout preventer according to claim 1, wherein the tail part of the cylinder body (4) is provided with a second sealing packing (6), and the second sealing packing (6) is positioned at the inner side of the lubricator joint (7).
4. A wellhead hydraulic sealing blowout preventer according to claim 2 or 3, characterized in that the first sealing packing (2) and the second sealing packing (6) are both rubber packing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121490656.8U CN215565836U (en) | 2021-07-02 | 2021-07-02 | Wellhead hydraulic sealing blowout preventer for steel wire operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121490656.8U CN215565836U (en) | 2021-07-02 | 2021-07-02 | Wellhead hydraulic sealing blowout preventer for steel wire operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215565836U true CN215565836U (en) | 2022-01-18 |
Family
ID=79822797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121490656.8U Active CN215565836U (en) | 2021-07-02 | 2021-07-02 | Wellhead hydraulic sealing blowout preventer for steel wire operation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215565836U (en) |
-
2021
- 2021-07-02 CN CN202121490656.8U patent/CN215565836U/en active Active
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