CN204476348U - A kind of intelligent proof adjustable returns tells dead mouth blanking plug - Google Patents
A kind of intelligent proof adjustable returns tells dead mouth blanking plug Download PDFInfo
- Publication number
- CN204476348U CN204476348U CN201520079693.8U CN201520079693U CN204476348U CN 204476348 U CN204476348 U CN 204476348U CN 201520079693 U CN201520079693 U CN 201520079693U CN 204476348 U CN204476348 U CN 204476348U
- Authority
- CN
- China
- Prior art keywords
- blanking plug
- plug body
- valve pocket
- adjusting rod
- regulating block
- 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
Links
- 230000001105 regulatory effect Effects 0.000 claims abstract description 19
- 230000000694 effects Effects 0.000 claims abstract description 11
- 239000004576 sand Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 32
- 238000002347 injection Methods 0.000 abstract description 25
- 239000007924 injection Substances 0.000 abstract description 25
- 238000000034 method Methods 0.000 description 6
- 238000010276 construction Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 201000004569 Blindness Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
Abstract
The utility model discloses a kind of intelligent proof adjustable to return and tell dead mouth blanking plug, comprise the blanking plug body being configured with cavity, fishing head and cam, cam is located in blanking plug body upper part cavity, fishing head is located at blanking plug body upper end, regulating block is provided with outside blanking plug body, regulating block is matched by thread segment realize the axially-movable of adjusting rod with being located at the intrinsic adjusting rod of blanking plug, blanking plug body lower part inner chamber is provided with successively to be prevented telling valve pocket, valve pocket, spool, switch ball and back-moving spring, the effect of its breaker in middle ball warp back-moving spring is pressed on the inner conical surface of valve pocket, adjusting rod lower end contacts mutually with switch ball, the utility model can replace existing dead mouth blanking plug, simultaneously tubing string is setting complete after can realize regulating water injection rate to carry out water filling, and need to have when open flow in water injection well leakage or damage and prevent returning the function of telling.
Description
Technical field
The utility model relates to oil gas field stimulation technology field, is specifically related to a kind of intelligent proof adjustable being applicable to the eccentric separate water injection well in oil field and returns and tell dead mouth blanking plug.
Background technology
In the tubular column structure of separate water injection well, need for different stratum water injection rates the adjustment being realized water distribution quantity by the eccentric injection mandrel controlling this layer.For realizing this object, conventional dispensing well casing post work progress comprises following step: 1, before packer set, and stagnant water mouth thrown in by eccentric injection mandrel, and during to ensure packer set, oil pipe inner chamber body is independent sealed space; 2, well head pressurization makes oily overpressure reach the requirement of packer seat, completes setting; 3, dead mouthpiece is pulled out by underground construction; 4, adjustable water nozzle is thrown in; 5, the water injection rate adjusting different layers position is surveyed; 6, normal water filling, water injection pressure is generally higher, as well head leakage in the injecting process or after damaging, keeps in repair or upgrade after needing first open flow.
Prior art is in construction, there is operation on the one hand many, the problem that cost is high, especially in the process of process water injection string leakage breakage, owing to accurately cannot judge separate injection tubing string leakage reason, therefore blindness is comparatively large, and improper owing to judging tubing string leakage position, not only greatly reduce tubing string to go into the well success rate, and workover cost and instrument cost are multiplied; Prior art is in water injection well leakage or when damaging on the one hand in addition, and keep in repair after needing first open flow or upgrade, open flow will cause great amount of injection water to return row, reduces the water injection pressure of water injection well, has run counter to the object of water filling, had a strong impact on oil-field flooding effect.
Utility model content
For overcoming above-mentioned prior art defect, the purpose of this utility model is that providing a kind of intelligent proof adjustable to return tells dead mouth blanking plug, make it control ball valve by adjusting rod to open or close, to replace dead mouth blanking plug in the process of going into the well, tubing string is setting complete after adjustment water injection rate carry out water filling, and in water injection well leakage or damage to need to have when open flow and anti-ly return the function of telling.
For realizing above-mentioned technical purpose, the utility model takes following technical scheme:
A kind of intelligent proof adjustable returns tells dead mouth blanking plug, comprise the blanking plug body being configured with cavity, fishing head and cam, described cam is arranged in blanking plug body upper part cavity, described fishing head is arranged at blanking plug body upper end, it is characterized in that: described blanking plug body is outside equipped with regulating block, described regulating block is matched by thread segment realize the axially-movable of adjusting rod with being arranged at the intrinsic adjusting rod of blanking plug, described blanking plug body lower part inner chamber is disposed with to be prevented telling valve pocket, valve pocket, spool, switch ball and back-moving spring, the effect of wherein said switch ball warp back-moving spring is pressed on the inner conical surface of valve pocket, described adjusting rod lower end contacts mutually with switch ball.
Preferably, described blanking plug body lower end is provided with sand control cap.
By above technical scheme, the beneficial effects of the utility model are:
1, by the setting of blanking plug chamber body ball valve (valve pocket, spool, switch ball etc.), realize in the process of going into the well, rotate regulating block control and regulation bar, ball valve is made to be in closed condition, replace dead mouth blanking plug, can setting construction of Denging be carried out after going into the well with tubing string, decrease transferring and fishing for of the stagnant water mouth in traditional handicraft, reduce difficulty of construction, reduce cost of production;
2, tubing string is setting complete after, by regulating regulating block control and regulation bar, opening ball valve and carrying out water filling, simultaneously adjusting rod can control the aperture of inner spool and reach the object regulating water injection rate;
3, prevent returning the setting of telling valve pocket by water outlet position, realize when water injection well leakage or damage need open flow, in oil pipe, pressure reduces, when strata pressure exceeds tubing pressure, effectively prevent great amount of injection water from returning row, reduce blowout prevention to the impact of oil-field flooding effect, and in the maintenance in water injection string leakage breakage, directly stagnant water mouth can be adjusted to without the need to changing, inspection down-hole separate injection tubing string leakage reason, for next step maintenance provides clear and definite foundation, success rate and saving operation cost thus raising separate injection tubing string is gone into the well.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
In figure: 1: fishing head, 2: regulating block, 3: cam, 4: adjusting rod, 5: return and tell valve pocket, 6: valve pocket, 7: spool, 8: switch ball, 9: back-moving spring, 10: sand control cap.
Detailed description of the invention
For making creation means of the present utility model, technical characteristic and the effect reached should be readily appreciated that, below in conjunction with drawings and Examples, the utility model being described in further detail, but should not being considered as restriction of the present utility model.
As shown in Figure 1, a kind of intelligent proof adjustable returns tells dead mouth blanking plug, comprise the blanking plug body being configured with cavity, blanking plug body upper end is plugged with fishing head through pressure cap, and be fixed with cam through bolt in upper cavity, cam stop part stretches out in outside blanking plug body by the strip hole offered on blanking plug body, blanking plug is originally external is configured with regulating block, regulating block is matched with being arranged at the intrinsic adjusting rod of blanking plug by thread segment, realize by clockwise or be rotated counterclockwise regulating block control and regulation bar and carry out axially-movable, blanking plug body lower part inner chamber is disposed with from top to bottom to be prevented telling valve pocket, valve pocket, spool, switch ball and back-moving spring, the effect of its breaker in middle ball warp back-moving spring is pressed on the inner conical surface of valve pocket, to cut off exhalant canal, adjusting rod lower end contacts mutually with switch ball, blanking plug body lower end is provided with sand control cap.
During work, the utility model is gone into the well in process with operating tool string, control to adjust bar 4 move upward vertically by being rotated counterclockwise regulating block 2, now switch ball 8 is under the effect of back-moving spring 9, be pressed on the inner conical surface of valve pocket 6, realize the partition of exhalant canal, its effect is suitable with dead mouth blanking plug, now tubing string can carry out setting suppressing after going into the well, and avoids throwing, drags for the activities of dead mouth blanking plug; Tubing string is setting complete after, control to adjust bar 4 by the regulating block 2 that turns clockwise and move down vertically, switch ball 8 is pushed away valve pocket 6, open waterflood path, now can continue through rotation regulating block 2 and control to adjust bar 4, realize the opening degree of consecutive damper valve core 7, reach the object regulating water injection rate; When water injection string internal pressure is greater than strata pressure (pressure reduction is not more than 0.3MPa), under the effect of pressure differential, anti-the returning that weep hole position is arranged is told valve pocket 5 and is opened, normal water filling; When stopping note, under the acting in conjunction of strata pressure and back-moving spring 9, preventing returning and telling valve pocket 5 and close, preventing stratum from returning to tubing string inside and tell.
Claims (2)
1. an intelligent proof adjustable returns and tells dead mouth blanking plug, comprise the blanking plug body being configured with cavity, fishing head and cam, described cam is arranged in blanking plug body upper part cavity, described fishing head is arranged at blanking plug body upper end, it is characterized in that: described blanking plug body is outside equipped with regulating block, described regulating block is matched by thread segment realize the axially-movable of adjusting rod with being arranged at the intrinsic adjusting rod of blanking plug, described blanking plug body lower part inner chamber is disposed with to be prevented telling valve pocket, valve pocket, spool, switch ball and back-moving spring, the effect of wherein said switch ball warp back-moving spring is pressed on the inner conical surface of valve pocket, described adjusting rod lower end contacts mutually with switch ball.
2. the intelligent proof adjustable of one according to claim 1 returns and tells dead mouth blanking plug, it is characterized in that: described blanking plug body is provided with sand control cap in lower end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520079693.8U CN204476348U (en) | 2015-02-04 | 2015-02-04 | A kind of intelligent proof adjustable returns tells dead mouth blanking plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520079693.8U CN204476348U (en) | 2015-02-04 | 2015-02-04 | A kind of intelligent proof adjustable returns tells dead mouth blanking plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204476348U true CN204476348U (en) | 2015-07-15 |
Family
ID=53632150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520079693.8U Expired - Fee Related CN204476348U (en) | 2015-02-04 | 2015-02-04 | A kind of intelligent proof adjustable returns tells dead mouth blanking plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204476348U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107420075A (en) * | 2017-06-26 | 2017-12-01 | 中国石油集团渤海钻探工程有限公司 | Upper strata low pressure negative pressure divides device for picking |
-
2015
- 2015-02-04 CN CN201520079693.8U patent/CN204476348U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107420075A (en) * | 2017-06-26 | 2017-12-01 | 中国石油集团渤海钻探工程有限公司 | Upper strata low pressure negative pressure divides device for picking |
| CN107420075B (en) * | 2017-06-26 | 2023-07-14 | 中国石油天然气集团有限公司 | Upper low-pressure negative pressure separate mining device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20150715 |