CN214498962U - One-way valve type stabilizer - Google Patents
One-way valve type stabilizer Download PDFInfo
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- CN214498962U CN214498962U CN202022998471.XU CN202022998471U CN214498962U CN 214498962 U CN214498962 U CN 214498962U CN 202022998471 U CN202022998471 U CN 202022998471U CN 214498962 U CN214498962 U CN 214498962U
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- way valve
- valve
- valve seat
- stabilizer according
- spring
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Abstract
The utility model discloses a one-way valve type stabilizer, which comprises a body and a valve core; the utility model has simple structure and convenient operation; the bottom drilling tool assembly is simplified, and the fracture risk of the underground drill string is reduced; the time for connecting the bottom drilling tool assembly is saved, and the marine drilling time efficiency is improved.
Description
Technical Field
The utility model belongs to well drilling engineering instrument relates to a check valve formula stabilizer particularly.
Background
The stabilizer is generally connected in a bottom drilling assembly, and is an important tool for preventing well deviation change in petroleum, natural gas and geological exploration drilling engineering. The stabilizer mainly has the stabilizing function of relieving radial and axial violent vibration of the elastic system of the drill string in the hole; the eccentric wear of the drill bit and the drill rod is reduced; the coring quality is ensured; preventing well deviation or using manual directional drilling.
The float valve is a blowout prevention tool in the drilling tool, so that the drilling fluid can only flow from top to bottom in the drilling tool. When the pressure of the lower part of the float valve is larger than the pressure of the upper liquid column, the float valve is closed, so that formation fluid cannot enter the upper part of the float valve of the drilling tool, and overflow and well kick in the drilling tool are prevented. The drilling fluid backflow prevention device has positive effects on preventing drilling fluid backflow and preventing dead water holes.
The drilling string combination which is most commonly used for offshore drilling at present comprises 1. a drill bit, a screw drilling tool, a floating valve, a stabilizer, a non-magnetic drill collar, MWD, a non-magnetic drill collar, a jar, a reinforced drill rod and …. 2. the drill bit, a rotary steering, the floating valve, the stabilizer, the MWD, the non-magnetic drill collar, the jar, the reinforced drill rod and …. the drilling string combination shows that the stabilizer and the floating valve are generally indispensable, the drilling tool combination is complex and time-consuming, and the probability of downhole accidents is high.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's not enough, provide a check valve formula stabilizer, this stabilizer optimizes the drilling tool combination and is: the drilling bit, the screw drilling tool, the rotary steering, the one-way valve type stabilizer, the non-magnetic drill collar, the MWD, the non-magnetic drill collar, the jar, the heavy drill rod and the … have great significance for the economy and the safety of marine drilling.
The utility model discloses a realize through following technical scheme:
a one-way valve type stabilizer comprises a body and a valve core;
a through inner pore channel is formed inside the body; the inner pore passage is divided into an upper pore passage with a slightly larger diameter and a lower pore passage with a slightly smaller diameter, and a righting wing is formed in the middle of the outer wall of the body;
the valve core is arranged at the lowest part of the hole channel on the body and comprises a valve seat, a spring seat, a central rod, a mushroom head and a spring; the valve seat is cylindrical, and the spring seat is fixedly arranged inside the valve seat cylinder; the mushroom head is arranged at the upper end of the central rod, the spring penetrates through the central rod, the lower end of the central rod is arranged on the spring seat, and the mushroom head is in sealing contact with the inner wall of the valve seat.
In the above technical scheme, a female buckle structure is formed at the upper end of the body.
In the above technical scheme, a male buckle structure is formed at the lower end of the body.
In the technical scheme, the righting wing rotates spirally and comprises a plurality of righting wing protrusions arranged at intervals, a flow channel is formed between the righting wing protrusions, and wear-resistant columns are formed on the surfaces of the righting wing protrusions.
In the above technical solution, the number of the straightening wings is greater than or equal to 3.
In the technical scheme, the middle part of the valve seat cylinder is symmetrically hollowed out.
In the technical scheme, a sealing groove is formed in the outer wall of the valve seat, and a sealing ring is arranged in the sealing groove.
The utility model has the advantages and positive effects that:
1. the utility model has simple structure and convenient operation;
2. the bottom drilling tool assembly is simplified, and the fracture risk of the underground drill string is reduced;
3. the time for connecting the bottom drilling tool assembly is saved, and the marine drilling time efficiency is improved.
Drawings
Fig. 1 is a front view of the structure of the present invention.
Fig. 2 is a schematic top/bottom view of the present invention.
Fig. 3 is a partial structural schematic diagram (one) of the valve core.
Fig. 4 is a partial structural schematic diagram (two) of the valve core.
Wherein: 1. a female buckle; 2. mushroom heads; 3. a sealing groove; 4. a seal ring; 5. a valve seat; 6. a metal seal face; 7. a thread; 8. a spring; 9. a spring seat; 10. a center pole; 11. a body; 12. an inner bore; 13. a male buckle; 14. a flow channel; 15. a wear-resistant column; 16. and (4) righting the wing.
For a person skilled in the art, other relevant figures can be obtained from the above figures without inventive effort.
Detailed Description
In order to make the technical field person understand the solution of the present invention better, the technical solution of the present invention is further described below with reference to the specific embodiments.
Examples
Referring to fig. 1-4, the stabilizer of the check valve type mainly comprises a box 1, a mushroom head 2, a sealing groove 3, a sealing ring 4, a valve seat 5, a metal sealing surface 6, a thread 7, a spring 8, a spring seat 9, a center rod 10, a body 11, an inner hole 12, a pin 13, a flow passage 14, a wear-resistant column 15, a centering wing 16, and the like;
the female buckle 1 and the male buckle 13 are API standard buckles and can be processed into special buckles to meet the requirements of customers; the upper end of the valve seat 5 is provided with a sealing groove 3 for mounting a sealing ring 4; the shape of the mushroom head 2 is similar to a mushroom shape; the mushroom head 2 is fixed with the central rod 10 through threads 7; the mushroom head 2 and the valve seat 5 are sealed by a metal sealing surface 6; the lower end of the central rod 10 is arranged on the spring seat 9; the spring 8 penetrates through the central rod 10;
the number of the righting wings 16 is 3, and the shape of the righting wings is designed to be spiral;
the wear-resistant columns 15 are embedded on the surfaces of the centralizing wings 16, so that the wear resistance of the stabilizer in the well is improved; in the drilling process, the centralizing wings 16 are in contact with the well wall surface;
the pump-on drilling fluid flows to the one-way valve type stabilizer from the inner hole of the drill rod along the arrow direction in the figure 1, under the pressure operation, the mushroom head 2 moves downwards, the spring 8 is compressed, the metal sealing surface 6 of the mushroom head 2 and the valve seat 5 is opened, and the drilling fluid flows to the drill bit along the inner hole; the pump stopping spring 8 closes the metal sealing surface 6 of the mushroom head 2 and the valve seat 5 under the action of restoring force; therefore, the one-way valve type stabilizer not only realizes the effect that the stabilizer supports the well wall, but also realizes the operation that the float valve prevents the drilling fluid from flowing backwards, thereby greatly improving the economy and the safety of ocean drilling.
The invention has been described above by way of example, and it should be noted that any simple variants, modifications or other equivalent substitutions by a person skilled in the art without spending creative effort may fall within the scope of protection of the present invention without departing from the core of the present invention.
Claims (7)
1. A one-way valve stabilizer, comprising: comprises a body and a valve core;
a through inner pore channel is formed inside the body; the inner pore passage is divided into an upper pore passage with a slightly larger diameter and a lower pore passage with a slightly smaller diameter, and a righting wing is formed in the middle of the outer wall of the body;
the valve core is arranged at the lowest part of the hole channel on the body and comprises a valve seat, a spring seat, a central rod, a mushroom head and a spring; the valve seat is cylindrical, and the spring seat is fixedly arranged inside the valve seat cylinder; the mushroom head is arranged at the upper end of the central rod, the spring penetrates through the central rod, the lower end of the central rod is arranged on the spring seat, and the mushroom head is in sealing contact with the inner wall of the valve seat.
2. A one-way valve stabilizer according to claim 1 wherein: the upper end of the body is provided with a female buckle structure.
3. A one-way valve stabilizer according to claim 1 wherein: the lower end of the body is provided with a male buckle structure.
4. A one-way valve stabilizer according to claim 1 wherein: the straightening wing is spiral and comprises a plurality of straightening wing protrusions arranged at intervals, a flow channel is formed between the straightening wing protrusions, and wear-resistant columns are formed on the surfaces of the straightening wing protrusions.
5. A one-way valve stabilizer according to claim 1 wherein: the number of the righting wings is more than or equal to 3.
6. A one-way valve stabilizer according to claim 1 wherein: and the middle part of the valve seat cylinder is provided with symmetrical hollows.
7. A one-way valve stabilizer according to claim 1 wherein: the outer wall of the valve seat is provided with a sealing groove, and a sealing ring is arranged in the sealing groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022998471.XU CN214498962U (en) | 2020-12-14 | 2020-12-14 | One-way valve type stabilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022998471.XU CN214498962U (en) | 2020-12-14 | 2020-12-14 | One-way valve type stabilizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214498962U true CN214498962U (en) | 2021-10-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022998471.XU Active CN214498962U (en) | 2020-12-14 | 2020-12-14 | One-way valve type stabilizer |
Country Status (1)
| Country | Link |
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| CN (1) | CN214498962U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113882820A (en) * | 2021-12-08 | 2022-01-04 | 西南石油大学 | Blowout prevention valve in drilling tool |
-
2020
- 2020-12-14 CN CN202022998471.XU patent/CN214498962U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113882820A (en) * | 2021-12-08 | 2022-01-04 | 西南石油大学 | Blowout prevention valve in drilling tool |
| CN113882820B (en) * | 2021-12-08 | 2022-02-22 | 西南石油大学 | Blowout prevention valve in drilling tool |
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