CN110043214A - A kind of tubing plug - Google Patents
A kind of tubing plug Download PDFInfo
- Publication number
- CN110043214A CN110043214A CN201910318913.0A CN201910318913A CN110043214A CN 110043214 A CN110043214 A CN 110043214A CN 201910318913 A CN201910318913 A CN 201910318913A CN 110043214 A CN110043214 A CN 110043214A
- Authority
- CN
- China
- Prior art keywords
- plug
- unidirectional
- blowout
- screw rod
- tube body
- 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
- 238000005192 partition Methods 0.000 claims description 18
- 238000011010 flushing procedure Methods 0.000 abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 208000002925 dental caries Diseases 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
A kind of tubing plug is equipped with the tube body of logical oily cavity including both ends, is equipped with unidirectional plug in the channel between two logical oily cavitys.Drifting operation passes to design position or operating personnel when shaft bottom carries out clean-out service as required, under to behind predetermined position, pass through the pump of the cementing truck on ground, it pressurizes to oil pipe, pressure acts on plug, when pressure reaches 7-8 megapascal, the screw rod for connecting unidirectional plug is disconnected by way of cutting screw rod, plug is fallen, form positive backwash circulation canal, it can normal well-flushing, at this moment pit shaft is entirely active water, blowout will not occur in trip-out operation, it can guarantee that drifting flow chart is not in well kick or blowout, it can achieve control well kick or blowout rapidly.
Description
Technical field
The invention belongs to oil-gas mining technical field, specifically a kind of tubing plug.
Background technique
Workover treatment necessary drifting in lower major diameter tool, it is therefore an objective to scraping be carried out to micro- dirt of internal surface of sleeve pipe, simultaneously
Can casing be verified by arriving predetermined position or artificial bottom of a well under major diameter tool.It can be in oil field operation for some stratum energy
The sufficient well of amount due to caused by surge pressure, will appear well kick or blowout in drifting operation, in this way during drifting
It will cause environmental pollution, threaten workover treatment personnel safety and equipment safety.
Summary of the invention
The present invention provides a kind of tubing plugs, can prevent well kick or blowout phenomenon in workover treatment:
The present invention is achieved through the following technical solutions:
A kind of tubing plug is equipped with the tube body of logical oily cavity including both ends, sets in the channel between two logical oily cavitys
There is unidirectional plug.
The tube body two-port has been respectively and fixedly connected with partition, and partition is equipped with through-hole.
The partition is threadedly coupled with tube body.
Screw rod is provided on one of them described partition, screw end head is protruded into logical oily cavity and is threadedly coupled with plug.
The unidirectional plug is one of frustum, hemispherical.
The unidirectional plug and channel transition cooperate.
Beneficial effects of the present invention: drifting operation passes to design position or operating personnel as required and carries out well-flushing work in shaft bottom
When industry, under to behind predetermined position, by the pump of the cementing truck on ground, pressurize to oil pipe, pressure acts on plug, works as pressure
When power reaches 7-8 megapascal, the screw rod for connecting unidirectional plug is disconnected by way of cutting screw rod, and plug is fallen, and is formd positive and negative
Wash circulation canal, can normal well-flushing, at this moment pit shaft is entirely active water, and blowout will not occur in trip-out operation, can be with
Guarantee that drifting flow chart is not in that perhaps blowout can achieve control well kick or blowout rapidly to well kick.
Detailed description of the invention
Fig. 1 is cross-sectional view of the invention,
Fig. 2 is assembling schematic diagram of the invention；
Fig. 3 is the unidirectional plug schematic diagram of the present invention；
In figure: 1-tube body；2-partitions；3-connecting rods；4-through-holes；5-unidirectional plugs；6-screw rods；7-channels；8-is logical
Oily cavity；9-internal screw threads；10-threaded holes.
Specific embodiment
Referring to Fig. 1 and Fig. 2；A kind of tubing plug is equipped with the tube body 1 of logical oily cavity 8 including both ends, and two described logical
Unidirectional plug 5 is equipped in channel 7 between oily cavity 8.
1 two-port of tube body has been respectively and fixedly connected with partition 2, and partition 2 is equipped with through-hole 4, not only can guarantee normal well-flushing, but also energy
Guarantee is not in the generation of well kick or blowout.
The partition 2 is threadedly coupled with tube body 1, is easily installed disassembly.
Screw rod 6 is provided on one of them described partition 2,6 end of screw rod is protruded into logical oily cavity 8 and unidirectional 5 spiral shell of plug
Line connection, when pressure reaches 7-8 megapascal, the screw rod for connecting unidirectional plug is disconnected by way of cutting screw rod, unidirectional plug
It falls, forms positive backwash circulation canal, it can normal well-flushing.
The unidirectional plug 5 is one of frustum, hemispherical, after unidirectional plug is fallen, guarantees unidirectional plug and leads to
Gap between oily 8 inner wall of cavity has water to pass through.
The unidirectional plug 2 and 7 transition fit of channel, it can be ensured that unidirectional ponding of the plug to channel 7, meanwhile,
After screw rod 6 is cut, unidirectional plug 2 is voluntarily fallen under the effect of gravity, is detached from channel 7.
The present invention can prevent downhole oil or gas from suppressing lower ejection, specifically include that tube body 1, tube body in clean-out service
1 two ports are equipped with internal screw thread 9, and partition 2 is equipped with external screw thread, and tube body 1 is threadedly coupled with partition 2；Meanwhile it being set on partition 2
Have through-hole 4, not only can guarantee normal well-flushing, but can guarantee be not in well kick or blowout generation；Wherein it is located at 1 upper end of tube body
The partition 2 of mouth is equipped with screw rod 6, and 6 rear end of screw rod is fixed by nut and the partition 2 of upper port；The logical oily cavity at 1 both ends of tube body
8 diameters are greater than the diameter in channel 7, and unidirectional plug 5 is equipped in channel 7, are equipped with unidirectional plug 5 in channel 7, unidirectional plug 5 it is upper
End face is equipped with threaded hole 10, and connecting rod 3 is welded on lower end surface, and the upper surface of unidirectional plug 5 and 6 nose threads of screw rod connect
It connects.The present invention can be used in casing drifting operation, be transmitted using the pump of ground cement vehicle by pressure when needing to open blanking plug
It opens, carries out lower step operation, when not needing to open, blanking plug is allowed to be in close state.
Claims (6)
1. a kind of tubing plug, it is characterised in that: be equipped with the tube body (1) of logical oily cavity (8), two logical oil including both ends
Unidirectional plug (5) are equipped in channel (7) between cavity (8).
2. a kind of tubing plug according to claim 1, it is characterised in that: tube body (1) two-port is respectively and fixedly connected with
Have partition (2), partition (2) is equipped with through-hole (4).
3. a kind of tubing plug according to claim 2, it is characterised in that: the partition (2) and tube body (1) screw thread connect
It connects.
4. a kind of tubing plug according to claim 2, it is characterised in that: be arranged on one of them described partition (2)
Have screw rod (6), screw rod (6) end is protruded into logical oily cavity (8) and is threadedly coupled with unidirectional plug (5).
5. a kind of tubing plug according to claim 1, it is characterised in that: the unidirectional plug (5) is frustum, hemisphere
One of shape.
6. a kind of tubing plug according to claim 5, it is characterised in that: the unidirectional plug (2) and channel (7) mistake
Cross cooperation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910318913.0A CN110043214A (en) | 2019-04-19 | 2019-04-19 | A kind of tubing plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910318913.0A CN110043214A (en) | 2019-04-19 | 2019-04-19 | A kind of tubing plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110043214A true CN110043214A (en) | 2019-07-23 |
Family
ID=67278076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910318913.0A Pending CN110043214A (en) | 2019-04-19 | 2019-04-19 | A kind of tubing plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110043214A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111894518A (en) * | 2020-07-28 | 2020-11-06 | 合力（天津）能源科技股份有限公司 | Ball-throwing type oil pipe blocking device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3817327A (en) * | 1972-07-17 | 1974-06-18 | Hydro Combo Inc | Sub-surface well blowout preventer operated mechanically from the surface |
| US20040216868A1 (en) * | 2003-05-02 | 2004-11-04 | Owen Harrold D | Self-set bridge plug |
| CN201826805U (en) * | 2010-10-18 | 2011-05-11 | 中国石油化工股份有限公司 | Tubing plug for oil and gas field |
| CN202914018U (en) * | 2012-11-08 | 2013-05-01 | 中国石油化工股份有限公司 | Pressure test anti-spraying multifunctional plug |
| CN104343409A (en) * | 2013-08-09 | 2015-02-11 | 韩成才 | Blocking device at bottom of tubular column of tubular pump for snubbing workover operation |
| CN206554869U (en) * | 2016-08-27 | 2017-10-13 | 河南福侨石油装备有限公司 | Salvagable well-flushing bottom sieve is blocked up |
| CN208482395U (en) * | 2018-07-06 | 2019-02-12 | 温州市英可尔油墨有限公司 | A kind of magnetic-type unidirectional ink emptying nozzle |
| CN210239641U (en) * | 2019-04-19 | 2020-04-03 | 李眉博 | Oil pipe plug |
-
2019
- 2019-04-19 CN CN201910318913.0A patent/CN110043214A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3817327A (en) * | 1972-07-17 | 1974-06-18 | Hydro Combo Inc | Sub-surface well blowout preventer operated mechanically from the surface |
| US20040216868A1 (en) * | 2003-05-02 | 2004-11-04 | Owen Harrold D | Self-set bridge plug |
| CN201826805U (en) * | 2010-10-18 | 2011-05-11 | 中国石油化工股份有限公司 | Tubing plug for oil and gas field |
| CN202914018U (en) * | 2012-11-08 | 2013-05-01 | 中国石油化工股份有限公司 | Pressure test anti-spraying multifunctional plug |
| CN104343409A (en) * | 2013-08-09 | 2015-02-11 | 韩成才 | Blocking device at bottom of tubular column of tubular pump for snubbing workover operation |
| CN206554869U (en) * | 2016-08-27 | 2017-10-13 | 河南福侨石油装备有限公司 | Salvagable well-flushing bottom sieve is blocked up |
| CN208482395U (en) * | 2018-07-06 | 2019-02-12 | 温州市英可尔油墨有限公司 | A kind of magnetic-type unidirectional ink emptying nozzle |
| CN210239641U (en) * | 2019-04-19 | 2020-04-03 | 李眉博 | Oil pipe plug |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111894518A (en) * | 2020-07-28 | 2020-11-06 | 合力（天津）能源科技股份有限公司 | Ball-throwing type oil pipe blocking device |
| CN111894518B (en) * | 2020-07-28 | 2022-03-11 | 合力（天津）能源科技股份有限公司 | Ball-throwing type oil pipe blocking device |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |