CN210239641U - Oil pipe plug - Google Patents
Oil pipe plug Download PDFInfo
- Publication number
- CN210239641U CN210239641U CN201920539667.7U CN201920539667U CN210239641U CN 210239641 U CN210239641 U CN 210239641U CN 201920539667 U CN201920539667 U CN 201920539667U CN 210239641 U CN210239641 U CN 210239641U
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- CN
- China
- Prior art keywords
- plug
- oil
- pigging
- pipe body
- blowout
- 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.)
- Expired - Fee Related
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Abstract
An oil pipe plug comprises a pipe body, wherein oil through cavities are formed in two ends of the pipe body, and a one-way plug is arranged in a channel between the two oil through cavities. When the pigging operation is carried out to a designed position as required or an operator carries out the pigging operation at the bottom of a well, the pigging operation is carried out to a preset position, the oil pipe is pressurized through a pump of a cement truck on the ground, pressure acts on the plug, when the pressure reaches 7-8 MPa, the screw rod connected with the one-way plug is disconnected in a screw rod shearing mode, the plug falls down, a positive and negative washing circulation channel is formed, the pigging can be normally carried out, at the moment, a shaft is completely made of active water, the blowout can not occur in the starting operation, the phenomenon of the pigging or the blowout can be guaranteed in the pigging operation process, and the purpose of rapidly controlling the pigging or the blowout can be achieved.
Description
Technical Field
The utility model belongs to the technical field of oil gas exploitation, an oil pipe blanking plug specifically says so.
Background
The workover operation must be conducted when the large-diameter tool is lowered, in order to scrape micro-scale on the inner wall of the casing and verify whether the casing can be lowered to a preset position or an artificial well bottom through the large-diameter tool. The well dredging device can be used for wells with sufficient stratum energy in oil field operation, and well kick or blowout can occur during well dredging operation due to exciting pressure in the well dredging process, so that environmental pollution can be caused, and the safety of well repairing operation personnel and equipment can be threatened.
SUMMERY OF THE UTILITY MODEL
The utility model provides an oil pipe blanking plug can prevent to take place the kick or the blowout phenomenon when workover:
the utility model discloses a following technical scheme realizes:
an oil pipe plug comprises a pipe body, wherein oil through cavities are formed in two ends of the pipe body, and a one-way plug is arranged in a channel between the two oil through cavities.
Two ports of the pipe body are respectively and fixedly connected with a partition board, and through holes are formed in the partition boards.
The partition board is in threaded connection with the pipe body.
And a screw rod is arranged on one of the partition plates, and the end of the screw rod extends into the oil through cavity to be in threaded connection with the plug.
The unidirectional plug is one of a frustum and a hemisphere.
And the one-way plug is in transition fit with the channel.
The utility model has the advantages that: when the pigging operation is carried out to a designed position as required or an operator carries out the pigging operation at the bottom of a well, the pigging operation is carried out to a preset position, the oil pipe is pressurized through a pump of a cement truck on the ground, pressure acts on the plug, when the pressure reaches 7-8 MPa, the screw rod connected with the one-way plug is disconnected in a screw rod shearing mode, the plug falls down, a positive and negative washing circulation channel is formed, the pigging can be normally carried out, at the moment, a shaft is completely made of active water, the blowout can not occur in the starting operation, the phenomenon of the pigging or the blowout can be guaranteed in the pigging operation process, and the purpose of rapidly controlling the pigging or the blowout can be achieved.
Drawings
Figure 1 is a cross-sectional view of the present invention,
fig. 2 is an assembly view of the present invention;
FIG. 3 is a schematic view of the one-way plug of the present invention;
in the figure: 1, a pipe body; 2-a partition board; 3-a connecting rod; 4-a through hole; 5-one-way plug; 6-screw rod; 7-a channel; 8-oil through cavity; 9-internal thread; 10-threaded hole.
Detailed Description
See fig. 1 and 2; an oil pipe plug comprises a pipe body 1, wherein oil through cavities 8 are formed in two ends of the pipe body 1, and one-way plugs 5 are arranged in channels 7 between the oil through cavities 8.
Two ports of the pipe body 1 are respectively and fixedly connected with a partition plate 2, and the partition plate 2 is provided with a through hole 4, so that normal well flushing can be guaranteed, and well kick or blowout can not occur.
The partition board 2 is in threaded connection with the pipe body 1, and is convenient to install and detach.
And when the pressure reaches 7-8 MPa, the screw rod connected with the one-way plug is disconnected in a mode of shearing the screw rod, and the one-way plug falls down to form a forward and reverse washing circulation channel, so that the well can be normally washed.
The one-way plug 5 is one of a frustum and a hemisphere, and after the one-way plug falls down, a gap between the one-way plug and the inner wall of the oil through cavity 8 is ensured to have water to pass through.
The one-way plug 2 is in transition fit with the channel 7, the blocking effect of the one-way plug on the channel 7 can be guaranteed, and meanwhile, after the screw 6 is sheared, the one-way plug 2 automatically drops under the action of gravity and is separated from the channel 7.
The utility model discloses when the well-flushing operation, can prevent that oil or gas blowout under the strong pressure in the pit mainly includes: the pipe comprises a pipe body 1, wherein two ports of the pipe body 1 are provided with internal threads 9, the partition plate 2 is provided with external threads, and the pipe body 1 is in threaded connection with the partition plate 2; meanwhile, the partition plate 2 is provided with the through holes 4, so that normal well flushing can be guaranteed, and well kick or blowout can not occur; wherein, a screw 6 is arranged on the clapboard 2 arranged at the upper port of the tube body 1, and the rear end of the screw 6 is fixed with the clapboard 2 at the upper port through a nut; the diameter of the oil through cavity 8 at the two ends of the pipe body 1 is larger than that of the channel 7, the one-way plug 5 is arranged in the channel 7, a threaded hole 10 is formed in the upper end face of the one-way plug 5, the connecting rod 3 is welded on the lower end face of the one-way plug 5, and the upper end face of the one-way plug 5 is in threaded connection with the front end of the screw rod 6. The utility model discloses can be used to in the sleeve pipe drifting operation, utilize the pump of ground cement car to open through pressure transmission when needing to open the blanking plug, carry out the operation of next step, when need not open, let the blanking plug be in the closed condition.
Claims (4)
1. An oil pipe plug which is characterized in that: the oil-filling pipe comprises a pipe body (1) with oil-filling cavities (8) at two ends, wherein a one-way plug (5) is arranged in a channel (7) between the two oil-filling cavities (8), two ports of the pipe body (1) are respectively and fixedly connected with a partition plate (2), and a through hole (4) is formed in the partition plate (2); one of the partition plates (2) is provided with a screw (6), and the end of the screw (6) extends into the oil through cavity (8) and is in threaded connection with the one-way plug (5).
2. The tubing plug of claim 1, wherein: the partition plate (2) is in threaded connection with the pipe body (1).
3. The tubing plug of claim 1, wherein: the one-way plug (5) is one of a frustum and a hemisphere.
4. The tubing plug of claim 3, wherein: the one-way plug (5) is in transition fit with the channel (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920539667.7U CN210239641U (en) | 2019-04-19 | 2019-04-19 | Oil pipe plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920539667.7U CN210239641U (en) | 2019-04-19 | 2019-04-19 | Oil pipe plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210239641U true CN210239641U (en) | 2020-04-03 |
Family
ID=69967361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920539667.7U Expired - Fee Related CN210239641U (en) | 2019-04-19 | 2019-04-19 | Oil pipe plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210239641U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110043214A (en) * | 2019-04-19 | 2019-07-23 | 李眉博 | A kind of tubing plug |
-
2019
- 2019-04-19 CN CN201920539667.7U patent/CN210239641U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110043214A (en) * | 2019-04-19 | 2019-07-23 | 李眉博 | A kind of tubing plug |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200403 Termination date: 20210419 |