CN202745760U - Uninterrupted drilling fluid circulating valve - Google Patents
Uninterrupted drilling fluid circulating valve Download PDFInfo
- Publication number
- CN202745760U CN202745760U CN 201220352621 CN201220352621U CN202745760U CN 202745760 U CN202745760 U CN 202745760U CN 201220352621 CN201220352621 CN 201220352621 CN 201220352621 U CN201220352621 U CN 201220352621U CN 202745760 U CN202745760 U CN 202745760U
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- valve body
- valve
- drilling fluid
- way valve
- uninterrupted
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Abstract
The utility model relates to an uninterrupted drilling fluid circulating valve and belongs to the technical field of the oil and gas field drilling tools. The uninterrupted drilling fluid circulating valve is composed of a valve body, a retainer ring, a valve plate I, a one-way valve body A, a quick coupling and a one-way valve body B, wherein the one-way valve body A is mounted on the valve body through the retainer ring; the valve plate I is mounted on the one-way valve body A; a bypass hole is formed in the valve body under the one-way valve body A; the one-way valve body B is mounted on the bypass hole through a pin; and the quick coupling is movably locked on the one-way valve body B. The uninterrupted drilling fluid circulating valve is capable of realizing uninterrupted circulation of the underground drilling fluid in the whole drilling process, thereby solving the problem of narrow gap pressure and bursting pressure windows in the existing project and eliminating influences such as rock waste sedimentation, gas gathering, temperature change and the like; the uninterrupted drilling fluid circulating valve is simple in structure, convenient to operate and excellent in adaptability to the existing drilling machines; besides, the uninterrupted drilling fluid circulating valve is capable of avoiding damage to the drilling rod body and the connection threads if the conventional method is adopted for unlocking; and the uninterrupted drilling fluid circulating valve can be used without top drive.
Description
Technical field
The utility model relates to a kind of uninterrupted circulation of drilling fluid valve, belongs to the oilfield drilling technical field of tools.
Background technology
Uninterrupted circulation of drilling fluid valve is a kind of a kind of novel drilling well downhole tool that can guarantee in drilling well, when making a trip and making up a joint mud circulation.Under present drilling environment, especially drive under the drilling condition on the top, for aspects such as narrow Density Window well, ocean deepwater drilling, extended reach well, horizontal well, underbalance well, hp-ht well and exploitation of gas hydrates significant application value is arranged all.The Main Function of uninterrupted circulation of drilling fluid valve is: the continuous circulation that can realize drilling fluid in drilling well makes a trip process, guarantee upper, unload the stable of down-hole pressure in the drilling rod operating process, reduce or solve because the problems such as pressure oscillation, landwaste sedimentation and air accumulation that the interruption of down-hole drilling fluids circulation brings, improved ECD control, Effective Raise drilling safety, make the drilling technology level obtain tremendous increase.
The continuous cyclic drilling technology mainly adopts continuous circulation system and continuous circulation valve dual mode.Using comparatively ripe mode at present is continuous circulation system, and it is mainly by main frame, part flow arrangement, power unit and controlling composition.Continuous circulation system has improved the safety of execute-in-place, and existing conventional rig is also had good compliance, can keep the continuous circulation of drilling fluid during making up a joint, and can solve the problems that cause because of the circulation of drilling fluid interruption.But also there is the some shortcomings part in this system: (1) structure forms complicated, and the control difficulty is large, to having relatively high expectations of operating personnel; (2) when upper shackle, drilling rod body easy damaged; (3) operating personnel can't observe the situation in the cavity, very easily cause cross threading and injury during make-up; (4) must be equipped with the top drives and could use.Relative continuous circulation system, uninterrupted circulation of drilling fluid valve possesses the continuous circulation of realizing drilling fluid in drilling well makes a trip process, guarantee upper, unload the stable of down-hole pressure in the drilling rod operating process, reduce or solve because outside the problems such as pressure oscillation, landwaste sedimentation and air accumulation that the interruption of down-hole drilling fluids circulation brings, also have simple in structure, easy to operate, on adopting conventional method during shackle, can avoid the damage to drilling rod body and joint screw thread, need not to be equipped with the top and drive also and can use.
Summary of the invention
The purpose of this utility model is: a kind of pressure that can stablize in upper, shackle drilling rod operating process in the well is provided, avoids simultaneously the damage of drilling rod damage and joint screw thread, satisfy the drilling well use under the various type of drive conditions.And have the reduction drilling cost, and guarantee drilling safety, improve the uninterrupted circulation of drilling fluid valve of drilling efficiency characteristics.
The utility model is to realize by following technical solution above-mentioned purpose:
A kind of uninterrupted circulation of drilling fluid valve, it is made of valve body, back-up ring, valve plate I, valve plate II, one way valve valve body A, one way valve valve body B, snap joint, it is characterized in that: by back-up ring one way valve valve body A is housed on the valve body, one way valve valve body A is upper to be equipped with the valve plate I by mount pin A and torsion spring, and one way valve valve body A one side of valve plate I below is provided with spacing hole; Be provided with by-pass prot on the valve body of one way valve valve body A below, by pin one way valve valve body B is housed in the by-pass prot, the valve plate II is equipped with by mount pin B and torsion spring in the inboard of one way valve valve body B, the circumferential inner surface of one way valve valve body B is provided with shrinkage pool, the snap joint circumferential outer surface is provided with steel ball and roller, and snap joint is contained on the one way valve valve body B with the active card that cooperates of shrinkage pool by steel ball and roller.
The utility model beneficial effect compared with prior art is:
This uninterrupted circulation of drilling fluid valve is applicable in the exploitation of extended reach well, horizontal well, deep well, underbalance well, narrow space-fracture pressure window well, presser sensor well, tail pipe circulating drilling etc.Can realize the uninterrupted circulation of down-hole drilling fluids in the whole drilling process, connect thereby maintain, unload the constant of bottom pressure in the drilling rod operating process, the shaft bottom drilling fluid is operated within maximum stratum cavity pressure and the minimum formation cracking pressure scope, can solve the narrow difficult problem of the pore pressure that runs on the engineering and fracture pressure window, improved simultaneously ECD control, eliminated the landwaste sedimentation, air accumulation, the impacts such as variations in temperature, and simple in structure, easy to operate, existing rig there is good compliance, on adopting conventional method, during shackle, can avoid the damage to drilling rod body and joint screw thread; Need not to be equipped with the top drives also and can use.
Description of drawings
Fig. 1 is the structural representation of uninterrupted circulation of drilling fluid valve,
Fig. 2 is the assembling schematic diagram of snap joint and one way valve valve body B.
Among the figure: 1, valve body, 2, back-up ring, 3, the valve plate I, 4, one way valve valve body A, 5, mount pin B, 6, the valve plate II, 7, mount pin A, 8, spacing hole, 9, pin, 10, snap joint, 11, one way valve valve body B, 12, steel ball.
The specific embodiment
This uninterrupted circulation of drilling fluid valve is made of valve body 1, back-up ring 2, valve plate I 3, one way valve valve body A4, snap joint 10, one way valve valve body B11, by back-up ring 2 one way valve valve body A4 is housed on the valve body 1, one way valve valve body A4 is upper to be equipped with valve plate I 3 by mount pin A7 and torsion spring, and one way valve valve body A4 one side of valve plate I 3 belows is provided with spacing hole 8; Be provided with by-pass prot on the valve body 1 of one way valve valve body A4 below, by pin 9 one way valve valve body B11 is housed in the by-pass prot, valve plate II 6 is equipped with by mount pin B5 and torsion spring in the inboard of one way valve valve body B11, the circumferential inner surface of one way valve valve body B11 is provided with shrinkage pool, snap joint 10 circumferential outer surfaces are provided with steel ball 12 and roller, and snap joint is contained on the one way valve valve body B11 with the active card that cooperates of shrinkage pool by steel ball 12 and roller.
During work, uninterrupted circulation of drilling fluid valve is installed in and is equipped with on the rig that drives on the top, connects at 2 at offshore boring island and bores between the root.Under normal drilling condition, uninterrupted circulation of drilling fluid valve is with the drill string G.I.H.
During normal drilling well, drilling fluid forms an internal circulation path by entering the bottom drilling rod with being connected on the drilling rod that drives on the top uninterrupted circulation of drilling fluid valve of flowing through.
When connecing, unloading single or column, by-pass hose is connected in the snap joint 10, drilling fluid is flowed in the valve body 1, when the discharge pressure of the pressure in the by-pass hose and slush pump is identical, close slush pump, thereby realize that the circulation of drilling fluid passage switches, dismantle afterwards the joint between kelly bar and the valve body 1, realize shackle.In like manner can finish the operation of the new drilling rod of adjunction by opposite control flow, realize the continuous circulation of drilling fluid.
Claims (1)
1. uninterrupted circulation of drilling fluid valve, it is by valve body (1), back-up ring (2), valve plate I (3), valve plate II (6), one way valve valve body A(4), one way valve valve body B(11), snap joint (10) consists of, it is characterized in that: valve body (1) is upper to be equipped with one way valve valve body A(4 by back-up ring (2)), one way valve valve body A(4) upper by mount pin A(7) and torsion spring valve plate I (3) is housed, the one way valve valve body A(4 below the valve plate I (3)) side is provided with spacing hole (8); One way valve valve body A(4) is provided with by-pass prot on the valve body (1) of below, by pin (9) one way valve valve body B(11 is housed in the by-pass prot), one way valve valve body B(11) inboard is by mount pin B(5) and torsion spring valve plate II (6) is housed, one way valve valve body B(11) circumferential inner surface is provided with shrinkage pool, snap joint (10) circumferential outer surface is provided with steel ball (12) and roller, and snap joint (10) is contained in one way valve valve body B upper (11) by steel ball (12) and roller with the active card that cooperates of shrinkage pool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220352621 CN202745760U (en) | 2012-07-20 | 2012-07-20 | Uninterrupted drilling fluid circulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220352621 CN202745760U (en) | 2012-07-20 | 2012-07-20 | Uninterrupted drilling fluid circulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202745760U true CN202745760U (en) | 2013-02-20 |
Family
ID=47705177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220352621 Expired - Fee Related CN202745760U (en) | 2012-07-20 | 2012-07-20 | Uninterrupted drilling fluid circulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202745760U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104153733A (en) * | 2014-07-22 | 2014-11-19 | 中国石油集团渤海钻探工程有限公司 | Continuous circulating drilling system |
| CN104594835A (en) * | 2015-02-03 | 2015-05-06 | 中国石油集团渤海钻探工程有限公司 | Full-automatic sliding sleeve continuous circulating valve |
| CN112031686A (en) * | 2020-09-14 | 2020-12-04 | 北京博德世达石油技术股份有限公司 | Circulating valve special for wellhead, drilling equipment adopting circulating valve and drilling method |
| CN112431564A (en) * | 2020-11-30 | 2021-03-02 | 河北永明地质工程机械有限公司 | Valve and top drive slurry pipeline device |
| CN113482560A (en) * | 2021-09-08 | 2021-10-08 | 西南石油大学 | Novel double-valve type continuous circulating valve with clamping device |
-
2012
- 2012-07-20 CN CN 201220352621 patent/CN202745760U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104153733A (en) * | 2014-07-22 | 2014-11-19 | 中国石油集团渤海钻探工程有限公司 | Continuous circulating drilling system |
| CN104594835A (en) * | 2015-02-03 | 2015-05-06 | 中国石油集团渤海钻探工程有限公司 | Full-automatic sliding sleeve continuous circulating valve |
| CN104594835B (en) * | 2015-02-03 | 2017-03-15 | 中国石油集团渤海钻探工程有限公司 | Full-automatic sliding sleeve type continuous circulating valve |
| CN112031686A (en) * | 2020-09-14 | 2020-12-04 | 北京博德世达石油技术股份有限公司 | Circulating valve special for wellhead, drilling equipment adopting circulating valve and drilling method |
| CN112431564A (en) * | 2020-11-30 | 2021-03-02 | 河北永明地质工程机械有限公司 | Valve and top drive slurry pipeline device |
| CN112431564B (en) * | 2020-11-30 | 2022-05-10 | 河北永明地质工程机械有限公司 | Valve and top drive slurry pipeline device |
| CN113482560A (en) * | 2021-09-08 | 2021-10-08 | 西南石油大学 | Novel double-valve type continuous circulating valve with clamping device |
| US11530753B1 (en) | 2021-09-08 | 2022-12-20 | Southwest Petroleum University | Double-valve continuous circulating valve with a clamping device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130220 Termination date: 20130720 |