CN204511374U - One can reverse circulating leak stopping bypass valve - Google Patents
One can reverse circulating leak stopping bypass valve Download PDFInfo
- Publication number
- CN204511374U CN204511374U CN201520081914.5U CN201520081914U CN204511374U CN 204511374 U CN204511374 U CN 204511374U CN 201520081914 U CN201520081914 U CN 201520081914U CN 204511374 U CN204511374 U CN 204511374U
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- housing
- hole
- steel ball
- valve
- bypass valve
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Abstract
The utility model provides one can reverse circulating leak stopping bypass valve, and comprise housing, steel ball, valve body, valve body center is valve hole; Casing center is housing through-hole, and the sidewall of housing is provided with by-pass; Housing is connected with lower connector, valve body is inserted in the epimere of housing through-hole, spring is provided with between the lower end of valve body and lower connector, valve hole upper end and steel ball effect, the diameter of valve hole upper end is less than the diameter of described steel ball, the difference being greater than the pressure being applied to steel ball bottom when the pressure being applied to steel ball top reaches certain threshold value, and steel ball moves downward, and the upper end of housing through-hole is connected with the by-pass on housing.This bypass valve can repeatedly use, and has not needed, lower brill, and be widely used in drilling well, completion, well workover, structure is simple, easy to use, failure rate is low, cost performance is high, greatly can reduce risk and the difficulty of accident treatment, save the accident processing time, reduced drilling cost.
Description
Technical field
The utility model relates to a kind of bypass valve, particularly a kind of drilling well can reverse circulating leak stopping bypass valve.
Background technology
Leakage is one of down hole problem common in drilling process, and it expends drilling time, and loss mud, may cause the series of complex situations such as bit freezing, blowout, well slough, even cause well to be scrapped, cause heavy economic losses.Due to the harm that leakage is brought, leak-proof leak-stopping technology is developed rapidly, and has has researched and developed many-sided novel lost circulation additive for drilling fluids such as bridge joint loss circulation material, chemical plugging agent, high dehydration sealing agent, uniaxial pressure sealer and the thick slurry of various leak stopping at present.Drilling engineering is in the process of process leakage, for the fractured leakage that permeability loss is little, generally by slush pump on ground by sealing agent with carry liquid mixing (density is smaller) and clamp-on stratum under Injection Well afterwards, the effect of shutoff can be played, but when running into larger and large-scale leakage, then need to use the material of large-size to carry out shutoff, now loss circulation material is mixed into drilling fluid by mud pumping to leakage stratum be difficult to realize, in addition for the dilatancy of the organic loss circulation material of dilatancy and time requirement very strict, construction requirement is high, and general bypass valve, all can have after usage, the process of lower brill, waste a lot of time, need, with a kind of special leak stopping bypass valve, loss circulation material is delivered to drop ply position.
Summary of the invention
The utility model can be used for large-size loss circulation material to provide one, and the dilatancy considering loss circulation material requires and the strict demand of plugging time, repeatedly can use, not need, the process of lower brill, propose a kind of newly can reverse circulating leak stopping bypass valve, comprise housing, steel ball, valve body, is characterized in that, described valve body is hollow structure, and center is valve hole; Described housing is hollow structure, and center is housing through-hole, and described housing through-hole two ends are connected with upper and lower connecting hole respectively, and the sidewall of described housing is provided with and multiplely makes housing through-hole and the by-pass be connected outside housing; The lower connecting hole of described housing is connected with lower connector, described valve body is inserted in the epimere of described housing through-hole, spring is provided with between the lower end of described valve body and described lower connector, described valve hole upper end and steel ball effect, the diameter of described valve hole upper end is less than the diameter of described steel ball, the difference being greater than the pressure being applied to steel ball bottom when the pressure being applied to steel ball top reaches certain threshold value, steel ball moves downward, the upper end of housing through-hole is connected with the by-pass on housing, and leak stopping is starched can be normal through.
Further, in described housing through-hole, the upper end of lower connector is provided with slide cartridge, and described slide cartridge is through described spring, and the lower end of described slide cartridge is applied on described lower connector, and the upper end of described slide cartridge is applied to the lower end of described valve hole.
Further, the upper end of described housing through-hole is also provided with elastic card annular groove, is wherein provided with snap ring, limits the motion upwards of described valve body.
Further, the both sides described housing through-hole being positioned at described by-pass are provided with seal groove, are provided with seal in described seal groove.
Further, the connecting hole up and down of described housing is provided with TBG tubing round thread or gas thread.
Leak stopping bypass valve of the present utility model can be widely used in drilling well, completion, well workover, and its structure is simple, easy to use, failure rate is low, and cost performance is high, can repeatedly use, each use after do not needed, lower brill, greatly can reduce risk and the difficulty of accident treatment.The fixed point that leak stopping bypass valve of the present utility model can realize high concentration bulky grain material and long fibre loss circulation material is sent into and clamp-ons the task of lost-circulation zone, the specific aim of leak stopping can be improved, squeezing by building the pressure stifled, improve the service efficiency of loss circulation material and the specific aim of leak stopping.If lost-circulation zone is clear and definite, leakage segment length is less, and high concentration slug squeezes the stifled first-selected processing scheme that can be used as the large-scale leakage of burst, has good promotional value.
Accompanying drawing explanation
Fig. 1 is that the utility model can the structural representation of reverse circulating leak stopping bypass valve.
Reference numeral:
1-spring, 2-valve body, 21-valve hole, 3-snap ring, 4-steel ball, 5-housing, 51-by-pass, 52-seal groove, the upper connecting hole of 53-, connecting hole under 54-, 55-housing through-hole, 6-slide cartridge, connector under 7-.
Detailed description of the invention
Fig. 1 be of the present utility model can the structural representation of reverse circulating leak stopping bypass valve, composition graphs 1 can be described by reverse circulating leak stopping bypass valve of the present utility model.
As shown in Figure 1 can reverse circulating leak stopping bypass valve, described bypass valve, comprises housing 5, steel ball 4, valve body 2, and described valve body 2 is hollow structure, and center is valve hole 21, described housing 5 is hollow structure, and center is housing through-hole 55, and described housing through-hole 55 two ends are connected with upper and lower connecting hole 53,54 respectively, and the sidewall of described housing 5 is provided with and multiplely makes housing through-hole 55 and the by-pass 51 be connected outside housing, the lower connecting hole 54 of described housing is connected with lower connector 7, described valve body 2 is inserted in the epimere of described housing through-hole 21, spring 1 is provided with between the lower end of described valve body 2 and described lower connector 7, during normal use, steel ball 4 is not had in bypass valve, valve body about 2 two ends pressure difference is not enough to drive valve body 2 to move downward, described by-pass 51 is not communicated with housing through-hole, when downhole drill bit cannot realize normal circulation, easily there is bit freezing, at this moment described steel ball is put down from import, when steel ball fall act on mutually with described valve hole 21 upper end time, diameter due to described valve hole 21 upper end is less than the diameter of described steel ball 4, block passage, the pressure being applied to steel ball 4 top increases gradually, when the difference being greater than the pressure being applied to steel ball 4 bottom reaches certain threshold value, steel ball 4 moves downward, the upper end of housing 5 through hole is connected with the by-pass 51 on housing.
In order to ensure that bypass valve of the present utility model is when normally using, mud in reduction runner and the contact of described spring 1, thus increase the application life of bypass valve, further, in described housing through-hole 55, the upper end of lower connector 7 is provided with slide cartridge 6, described slide cartridge 6 is inner through described spring 1, and the lower end of described slide cartridge 6 is applied on described lower connector 7, and the upper end of described slide cartridge 6 is applied to the lower end of described valve hole 21.
In order to ensure at bypass valve when normally using, reduce the effect of valve body 2 by mud pressure variations, further, the upper end of described housing through-hole 55 is also provided with elastic card annular groove, is wherein provided with snap ring 3, limits the motion upwards of described valve body 2.
In order to seal casinghousing through hole effectively 55 and the passage of by-pass 51, increase the application life of bypass valve, further, the both sides described housing through-hole 55 being positioned at described by-pass 51 are provided with seal groove 52, are provided with seal in described seal groove 52.
In order to improve use versatility of the present utility model, further, the connecting hole up and down 53,54 of described housing 5 is provided with TBG tubing round thread or gas thread.
Of the present utility model can reverse circulating process be realize like this, when the blocking construction end of job, in order to not carry out, tripping operation, can reacting cycle be set up, steel ball is discharged, such as, an auxiliary line can be connected at rig floor, be connected to vibrosieve, by turn on pump mud circulation, steel ball is directly discharged to vibrosieve, operation of just can normally drilling afterwards.
According to leak stopping bypass valve of the present utility model, possesses following advantage: structure is simple, easy to use, failure rate is low, cost performance is high, can repeatedly use, do not needed after each use, lower brill, save stop bore time, greatly can reduce risk and the difficulty of accident treatment.Of the present utility modelly can to realize the normal feeding of high concentration bulky grain material and long fibre loss circulation material and clamp-on the task of lost-circulation zone by reverse circulating leak stopping bypass valve, the specific aim of leak stopping can be improved, squeezing by building the pressure stifled, improve the service efficiency of loss circulation material and the specific aim of leak stopping.If lost-circulation zone is clear and definite, leakage segment length is less, and high concentration slug squeezes the stifled first-selected processing scheme that can be used as the large-scale leakage of burst, has good promotional value.
Claims (7)
1. can a reverse circulating leak stopping bypass valve, comprise housing, steel ball, valve body, it is characterized in that, described valve body is hollow structure, and center is valve hole; Described housing is hollow structure, and center is housing through-hole, and described housing through-hole two ends are connected with upper and lower connecting hole respectively, and the sidewall of described housing is provided with and multiplely makes housing through-hole and the by-pass be connected outside housing; The lower connecting hole of described housing is connected with lower connector, described valve body is inserted in the epimere of described housing through-hole, spring is provided with between the lower end of described valve body and described lower connector, described valve hole upper end and steel ball effect, the diameter of described valve hole upper end is less than the diameter of described steel ball, the difference being greater than the pressure being applied to steel ball bottom when the pressure being applied to steel ball top reaches certain threshold value, and steel ball moves downward, and the upper end of housing through-hole is connected with the by-pass on housing.
2. the one as shown in claim 1 can reverse circulating leak stopping bypass valve, it is characterized in that, in described housing through-hole, the upper end of lower connector is provided with slide cartridge, described slide cartridge is through described spring, the lower end of described slide cartridge is applied on described lower connector, and the upper end of described slide cartridge is applied to the lower end of described valve hole.
3. one as claimed in claim 1 or 2 can reverse circulating leak stopping bypass valve, and it is characterized in that, the upper end of described housing through-hole is also provided with elastic card annular groove, is wherein provided with snap ring, limits the motion upwards of described valve body.
4. one as claimed in claim 1 or 2 can reverse circulating leak stopping bypass valve, and it is characterized in that, the both sides described housing through-hole being positioned at described by-pass are provided with seal groove, are provided with seal in described seal groove.
5. one as claimed in claim 3 can reverse circulating leak stopping bypass valve, and it is characterized in that, the both sides described housing through-hole being positioned at described by-pass are provided with seal groove, are provided with seal in described seal groove.
6. one as claimed in claim 1 or 2 can reverse circulating leak stopping bypass valve, and it is characterized in that, the connecting hole up and down of described housing is provided with TBG tubing round thread or gas thread.
7. one as claimed in claim 3 can reverse circulating leak stopping bypass valve, and it is characterized in that, the connecting hole up and down of described housing is provided with TBG tubing round thread or gas thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520081914.5U CN204511374U (en) | 2015-02-05 | 2015-02-05 | One can reverse circulating leak stopping bypass valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520081914.5U CN204511374U (en) | 2015-02-05 | 2015-02-05 | One can reverse circulating leak stopping bypass valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204511374U true CN204511374U (en) | 2015-07-29 |
Family
ID=53709367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520081914.5U Active CN204511374U (en) | 2015-02-05 | 2015-02-05 | One can reverse circulating leak stopping bypass valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204511374U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106761531A (en) * | 2016-12-19 | 2017-05-31 | 长江大学 | A kind of plugging while drilling instrument |
| CN111197467A (en) * | 2018-11-19 | 2020-05-26 | 中国石油化工股份有限公司 | Tubular string for changing fluid flow direction |
| CN115354988A (en) * | 2022-10-21 | 2022-11-18 | 中石化西南石油工程有限公司 | Multi-time switch quick leaking stoppage valve |
-
2015
- 2015-02-05 CN CN201520081914.5U patent/CN204511374U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106761531A (en) * | 2016-12-19 | 2017-05-31 | 长江大学 | A kind of plugging while drilling instrument |
| CN106761531B (en) * | 2016-12-19 | 2019-08-23 | 长江大学 | A kind of plugging while drilling tool |
| CN111197467A (en) * | 2018-11-19 | 2020-05-26 | 中国石油化工股份有限公司 | Tubular string for changing fluid flow direction |
| CN111197467B (en) * | 2018-11-19 | 2021-04-13 | 中国石油化工股份有限公司 | Tubular string for changing fluid flow direction |
| CN115354988A (en) * | 2022-10-21 | 2022-11-18 | 中石化西南石油工程有限公司 | Multi-time switch quick leaking stoppage valve |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |