CN107542427A - A kind of bypass cock valve - Google Patents
A kind of bypass cock valve Download PDFInfo
- Publication number
- CN107542427A CN107542427A CN201610466529.1A CN201610466529A CN107542427A CN 107542427 A CN107542427 A CN 107542427A CN 201610466529 A CN201610466529 A CN 201610466529A CN 107542427 A CN107542427 A CN 107542427A
- Authority
- CN
- China
- Prior art keywords
- inner cylinder
- shell
- cylindrical surface
- external cylindrical
- duct
- 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.)
- Granted
Links
Landscapes
- Multiple-Way Valves (AREA)
- Sliding Valves (AREA)
Abstract
The invention discloses a kind of bypass cock valve, including shell, inner cylinder and seal receptacle.Enclosure installs inner cylinder and seal receptacle, inner cylinder realize that inner cylinder slides axially by bypass passageways Fluid pressure or external hydraulic power source pressure, so as to control the switch of by-pass.It is an advantage of the invention that the reliability of Fluid Sealing is improved using sealing ring sealing；By-pass sealing is placed on shell axial passage rather than tube wall, reduces number of parts on tube wall, reduces the danger of sealing thorn leakage, adds the intensity and bypass passageways metered flow of valve body；Inner cylinder is machined with the function that axially extending bore can realize that part passes through in special operation.
Description
Technical field
The present invention relates to the bypass cock valve applied in petroleum exploration and development device field, more particularly to a kind of continuous cyclic drilling technology.
Background technology
When conventional drilling needs to make up a joint, it is necessary to interrupt circulating drilling medium（Mud or gas）.Interrupt circulation can produce it is many to drillng operation detrimental effect, including：During because stopping circulating, annular space dynamic pressure drop disappears, and bottom pressure reduces, and causes well kick sometimes；When re-establishing circulation, bottom pressure increase, leakage may be caused.In narrow Density Window operation, both influence can be more prominent.In the High angle section and horizontal drilling of extended reach well, landwaste can fall forms cutting bed on the low side of well, reduces effective borehole size, increases drill string torque and resistance；In hp-ht well, solid phase sedimentation and the rise of mud temperature in circulatory mediator can change mud property, and high temperature can overheat downhole instrument；In under balance pressure drilling, the flowing of gas may produce a unstable annular space；In During Air Drilling, landwaste sinking bit freezing and shaft bottom hydrops cause stratum immersion to be collapsed.These adverse effects easily cause the drilling complexity situation such as wellbore instability, cave-in, bit freezing, drilling tool failure, overflow or leakage.Therefore, the continuous circulation of drilling medium how is kept when making up a joint, so as to effectively avoid problem above, turns into technical barrier.
The appearance of continuous cyclic drilling technology provides technical scheme for the solution of above mentioned problem.Wherein it is the developing direction of the current technology using the continuous cyclic drilling technology of continuous circulating valve.Continuous circulating valve includes two circulation canals, and one is main channel, and another is by-pass, and the coordination for realizing main channel and by-pass respectively by main channel switch valve and bypass cock valve respectively switchs.Main structure type has two kinds：A kind of is the form that main channel and by-pass all utilize float valve plate, and another form is that main channel is stopcock structure and by-pass is one-way valve structures.Both the above form in the design of bypass passageways in order to be not take up the design space of main channel, all directly on valve body tube wall design processing, will certainly limiting valve body stressing conditions and metered flow；Either valve plate or check valve form, during bypass circulation, fluid washes away sealing surface always, will certainly reduce the service life of sealing.Therefore the stressing conditions and metered flow of valve body are improved, ensure that axial passage can instrument needed for tripping in electrical measurement etc. and to reduce fluid be the problem of continuous circulating valve design must take into consideration to the erosion for bypassing sealing surface.
The content of the invention
The purpose of the present invention is exactly problems of the prior art, there is provided a kind of to realize the bypass cock valve controlled during being made up a joint in continuous cyclic drilling technology bypass passageways switch.
To achieve the above object, the present invention uses following design：
A kind of bypass cock valve, including shell 1, inner cylinder 6 and seal receptacle 5；Wherein：Shell 1 is cylindrical, internal to be axially machined with step duct；Inner cylinder 6 is arranged in shell 1, and inner cylinder 6 is cylindrical, internal to be axially machined with through hole, and external cylindrical surface is respectively the first external cylindrical surface, the second external cylindrical surface and the 3rd external cylindrical surface of various outer diameter from top to bottom；Seal receptacle 5 is in annular, is fixedly mounted in shell 1, and static seal is formed between the external cylindrical surface of seal receptacle 5 and the first inner cylinder face of shell 1；Formed and be slidingly sealed between the inner cylinder face of first external cylindrical surface and seal receptacle 5；Formed and be slidingly sealed between second external cylindrical surface and the endoporus of shell 1, the inner space of shell 1 is divided into top annular space and bottom annular space by the second external cylindrical surface；Duct A11 and duct B10 are radially machined with shell 1, duct A11 connects with top annular space, and duct B10 connects with bottom annular space；Inner cylinder 6 is moved down, and sealing is formed between the 3rd external cylindrical surface and the endoporus of shell 1, and the interior bone that duct B10 is connected but with inner cylinder 6 with bottom annular space is isolated, i.e., by-pass is closed；Inner cylinder 6 moves up, and the 3rd external cylindrical surface and shell 1 separate, and duct B10 connects with the interior bone of bottom annular space and inner cylinder 6, i.e., by-pass is in open mode.
Such scheme also includes：
The external diameter of first external cylindrical surface of the inner cylinder 6, the second external cylindrical surface and the 3rd external cylindrical surface is respectively Φ 1, Φ 2 and Φ 3, and its relation is the ＞ Φ 3 of 2 ＞ Φ of Φ 1.
During the closed mode of by-pass, the pin B8 for preventing that shell 1 from relatively moving with inner cylinder 6 is installed between described shell 1 and inner cylinder 6.
Sealing ring A2 is installed between the external cylindrical surface of the seal receptacle 5 and the first inner cylinder face of shell 1 and forms static seal；Sealing ring B4 formation is installed between the inner cylinder face of the first external cylindrical surface and seal receptacle 5 to be slidingly sealed；Sealing ring C7 formation is installed between the second external cylindrical surface and the endoporus of shell 1 to be slidingly sealed, the inner space of shell 1 is divided into top annular space and bottom annular space by sealing ring C7；Between 3rd external cylindrical surface and the endoporus of shell 1 sealing is formed using sealing ring D9.
It is an advantage of the invention that：Bypass passageways sealing is placed on shell axial passage rather than tube wall, reduces number of parts on tube wall, reduces the danger of sealing thorn leakage, adds the intensity and bypass passageways metered flow of valve body；Inner cylinder is machined with the function that axially extending bore can realize that part passes through in special operation；The reliability of Fluid Sealing is improved using sealing ring sealing.
Brief description of the drawings
Fig. 1 is a kind of by-pass closed mode structural representation of bypass cock valve of the present invention（Drilling medium is flowed by inner cylinder interior bone）.
Fig. 2 is a kind of by-pass open mode structural representation of bypass cock valve of the present invention（Drilling medium is flowed by duct B）.
1. shell in figure, 2. sealing ring A, 3. pin A, 4. sealing ring B, 5. seal receptacles, 6. inner cylinders, 7. sealing ring C, 8. pin B, 9. sealing ring D, 10. duct B, 11. duct A.
Embodiment
Below in conjunction with the accompanying drawings 1 and accompanying drawing 2 the invention will be further described：
A kind of bypass cock valve includes shell 1, inner cylinder 6 and seal receptacle 5；Shell 1 is cylindrical, and internal to be axially machined with step duct, step duct axially penetrates through whole shell 1；Seal receptacle 5 is in annular, is fixedly mounted on by pin 3 in shell 1, and sealing ring A2 is installed between the external cylindrical surface and shell 1 of seal receptacle 5 and forms static seal；Inner cylinder 6 is cylindrical, internal to be axially machined with through hole, and external cylindrical surface is machined with the first external cylindrical surface, the second external cylindrical surface and the 3rd external cylindrical surface respectively from top to bottom to there is three kinds of diameters；Inner cylinder 6 is arranged in shell 1, and sealing ring B4 formation is installed between the inner cylinder face of the first external cylindrical surface and seal receptacle 5 and is slidingly sealed；Sealing ring C7 formation is installed between the second external cylindrical surface and the endoporus of shell 1 to be slidingly sealed, the inner space of shell 1 is divided into top annular space and bottom annular space by sealing ring C7；Duct A11 and duct B10 are radially machined with shell 1, duct A11 connects with top annular space, and duct B10 connects with bottom annular space；Inner cylinder 6 is moved down, and sealing is formed using sealing ring D9 between the 3rd external cylindrical surface and the endoporus of shell 1, and the interior bone that duct B10 is connected but with inner cylinder 6 with bottom annular space is isolated, i.e., by-pass is closed；Inner cylinder 6 moves up, and the 3rd external cylindrical surface and shell 1 separate, and duct B10 connects with the interior bone of bottom annular space and inner cylinder 6, i.e., by-pass is in open mode.
The external diameter of first external cylindrical surface of inner cylinder 6, the second external cylindrical surface and the 3rd external cylindrical surface is respectively Φ 1, Φ 2 and Φ 3, and its relation is preferably the ＞ Φ 3 of 2 ＞ Φ of Φ 1；When duct B10 is closed, the pin B8 for preventing that shell 1 from relatively moving with inner cylinder 6 is installed between shell 1 and inner cylinder 6.
During field application, a drilling tool valve is connected on the top of bypass cock valve, the drilling tool valve can be drilling tool check valve or plug valve, and embodiment selection connects plug valve（Not shown in figure）.
As shown in Figure 1, in oil drilling drilling process, drilling medium passes through plug valve（Open mode）, the interior bone of bypass cock valve inner cylinder 6 is reached, then flows into bottomhole assembly（Now, sealing is formed using sealing ring D9 between the 3rd external cylindrical surface and the inner hole wall of shell 1, the interior bone that duct B10 is connected but with inner cylinder 6 with bottom annular space is isolated, i.e., by-pass is closed）.
As shown in Figure 2, when making up a joint, first pin B8 is unclamped, so that inner cylinder 6 can slide up and down in the presence of applied external force, continuous circulating valve control manifold imports drilling medium the duct B10 of bypass cock valve, due to being atmospheric pressure and the ＞ Φ 1 of Φ 2 in the A11 of duct, therefore, inner cylinder 6 moves up in the presence of pressure difference, 3rd external cylindrical surface separates with the inner hole wall of shell 1, duct B10 is connected with bottom annular space and the connection of the interior bone of inner cylinder 6, bypass passageways are opened, progressively close off plug valve, drilling medium flows into bottomhole assembly by bypass passageways；
It is single connect after, progressively open plug valve, drilling medium is transformed into main channel from bypass passageways again, using continuous circulating valve control manifold to bypass passageways pressure release, because duct A11 and duct B10 are changed into atmospheric pressure and the ＞ Φ 3 of Φ 1, therefore inner cylinder 6 moves down in the presence of pressure difference, so as to close duct B10；After duct B10 is closed, tightening pin B8 prevents shell 1 from being relatively moved with inner cylinder 6.So as to realize the continuous cycle operation of drilling medium in drilling well overall process.
The another embodiment of opening main channel closing by-pass is in the above-described embodiments：
Duct A11 is hydraulic control mouth, the external hydraulic system for providing hydraulic power source during bypass cock.
Progressively open plug valve, drilling medium reaches lower drilling tool from bypass passageways and main channel, the external hydraulic system that hydraulic power source is provided on the A11 of duct, start injection hydraulic medium in hydraulic system duct A11, it is stepped up hydraulic medium pressure, then inner cylinder 6 is descending under the effect of hydraulic medium pressure, so as to close by-pass；After by-pass is closed, by-pass is closed and to duct B10 pressure releases using continuous circulating valve control manifold, pin B8 is tightened after pressure release prevents shell 1 from being relatively moved with inner cylinder 6.Finally to duct A11 pressure releases, corresponding hydraulic medium pipeline is dismantled.So as to realize the continuous cycle operation of drilling medium in drilling well overall process.
Claims (4)
1. a kind of bypass cock valve, including shell（1）, inner cylinder（6）And seal receptacle（5）；It is characterized in that：Shell（1）It is cylindrical, it is internal to be axially machined with step duct；Inner cylinder（6）Installed in shell（1）It is interior, inner cylinder（6）Cylindrical, internal to be axially machined with through hole, external cylindrical surface is respectively the first external cylindrical surface, the second external cylindrical surface and the 3rd external cylindrical surface of various outer diameter from top to bottom；Seal receptacle（5）In annular, shell is fixedly mounted on（1）It is interior, seal receptacle（5）External cylindrical surface and shell（1）The first inner cylinder face between form static seal；First external cylindrical surface and seal receptacle（5）Inner cylinder face between formed and be slidingly sealed；Second external cylindrical surface and shell（1）Formed and be slidingly sealed between endoporus, the second external cylindrical surface is by shell（1）Inner space be divided into top annular space and bottom annular space；Shell（1）Upper radial direction is machined with duct A（11）With duct B（10）, duct A（11）Connected with top annular space, duct B（10）Connected with bottom annular space；Inner cylinder（6）Move down, the 3rd external cylindrical surface and shell（1）Sealing, duct B are formed between endoporus（10）Connected with bottom annular space but with inner cylinder（6）Interior bone isolation, i.e., by-pass is closed；Inner cylinder（6）Move up, the 3rd external cylindrical surface and shell（1）Separate, duct B（10）With bottom annular space and inner cylinder（6）Interior bone connection, i.e., by-pass is in open mode.
2. bypass cock valve according to claim 1, it is characterised in that：The inner cylinder（6）The first external cylindrical surface, the external diameter of the second external cylindrical surface and the 3rd external cylindrical surface be respectively Φ 1, Φ 2 and Φ 3, its relation is the ＞ Φ 3 of 2 ＞ Φ of Φ 1.
3. bypass cock valve according to claim 1 or 2, it is characterised in that：During the closed mode of by-pass, described shell（1）And inner cylinder（6）Between be provided with and prevent shell（1）With inner cylinder（6）The pin B of relative movement（8）.
4. bypass cock valve according to claim 3, it is characterised in that：The seal receptacle（5）External cylindrical surface and shell（1）The first inner cylinder face between sealing ring A is installed（2）Form static seal；First external cylindrical surface and seal receptacle（5）Inner cylinder face between sealing ring B is installed（4）Formation is slidingly sealed；Sealing ring C is installed between the second external cylindrical surface and the endoporus of shell 1（7）Formation is slidingly sealed, sealing ring C（7）By shell（1）Inner space be divided into top annular space and bottom annular space；3rd external cylindrical surface and shell（1）Sealing ring D is utilized between endoporus（9）Form sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610466529.1A CN107542427B (en) | 2016-06-24 | 2016-06-24 | Bypass switch valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610466529.1A CN107542427B (en) | 2016-06-24 | 2016-06-24 | Bypass switch valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107542427A true CN107542427A (en) | 2018-01-05 |
| CN107542427B CN107542427B (en) | 2023-11-28 |
Family
ID=60960227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610466529.1A Active CN107542427B (en) | 2016-06-24 | 2016-06-24 | Bypass switch valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107542427B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110952942A (en) * | 2020-01-06 | 2020-04-03 | 长江大学 | A continuous circulation valve suitable for oil and gas drilling |
| CN114320195A (en) * | 2022-01-07 | 2022-04-12 | 西安石油大学 | Reversing connector for continuous sand washing and well washing |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU46039U1 (en) * | 2005-02-07 | 2005-06-10 | Открытое акционерное общество Всероссийский нефтегазовый научно-исследовательский институт имени академика А.П. Крылова (ВНИИнефть) | CIRCULATION VALVE |
| CN2823544Y (en) * | 2005-09-09 | 2006-10-04 | 许苏明 | Sealing structure of open hole bypass valve |
| CN204457524U (en) * | 2015-01-21 | 2015-07-08 | 德州联合石油机械有限公司 | A kind of screw drilling tool by-pass valve with interior blowout prevention function |
| CN104989322A (en) * | 2015-07-17 | 2015-10-21 | 中国石油集团渤海钻探工程有限公司 | Shear pin type bypass valve |
| US20150330186A1 (en) * | 2014-05-13 | 2015-11-19 | Weatherford/Lamb, Inc. | Closure device for a surge pressure reduction tool |
| CN204920904U (en) * | 2015-08-06 | 2015-12-30 | 中国石油集团渤海钻探工程有限公司 | Cut round pin formula bypass valve |
| CN205225188U (en) * | 2015-12-07 | 2016-05-11 | 中国石油天然气股份有限公司 | Bypass valve matched with water injection process pipe column |
| CN205876265U (en) * | 2016-06-24 | 2017-01-11 | 中石化石油工程技术服务有限公司 | Bypass ooff valve |
-
2016
- 2016-06-24 CN CN201610466529.1A patent/CN107542427B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU46039U1 (en) * | 2005-02-07 | 2005-06-10 | Открытое акционерное общество Всероссийский нефтегазовый научно-исследовательский институт имени академика А.П. Крылова (ВНИИнефть) | CIRCULATION VALVE |
| CN2823544Y (en) * | 2005-09-09 | 2006-10-04 | 许苏明 | Sealing structure of open hole bypass valve |
| US20150330186A1 (en) * | 2014-05-13 | 2015-11-19 | Weatherford/Lamb, Inc. | Closure device for a surge pressure reduction tool |
| CN204457524U (en) * | 2015-01-21 | 2015-07-08 | 德州联合石油机械有限公司 | A kind of screw drilling tool by-pass valve with interior blowout prevention function |
| CN104989322A (en) * | 2015-07-17 | 2015-10-21 | 中国石油集团渤海钻探工程有限公司 | Shear pin type bypass valve |
| CN204920904U (en) * | 2015-08-06 | 2015-12-30 | 中国石油集团渤海钻探工程有限公司 | Cut round pin formula bypass valve |
| CN205225188U (en) * | 2015-12-07 | 2016-05-11 | 中国石油天然气股份有限公司 | Bypass valve matched with water injection process pipe column |
| CN205876265U (en) * | 2016-06-24 | 2017-01-11 | 中石化石油工程技术服务有限公司 | Bypass ooff valve |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110952942A (en) * | 2020-01-06 | 2020-04-03 | 长江大学 | A continuous circulation valve suitable for oil and gas drilling |
| CN114320195A (en) * | 2022-01-07 | 2022-04-12 | 西安石油大学 | Reversing connector for continuous sand washing and well washing |
| CN114320195B (en) * | 2022-01-07 | 2023-08-22 | 西安石油大学 | A reversing joint for continuous sand flushing and well flushing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107542427B (en) | 2023-11-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107701147B (en) | An annular pressure downhole control valve | |
| CN201568013U (en) | Two-stage cementer free from drilling | |
| CN109869105B (en) | Drilling system and drilling method thereof | |
| CN104389554B (en) | Underground pressure control circulating switch valve | |
| CN105715221A (en) | Seafloor sediment rope coring three-layer pipe drilling tool suitable for seafloor drilling machine | |
| CN104594835B (en) | Full-automatic sliding sleeve type continuous circulating valve | |
| CN111456681A (en) | Double-layer in-pipe blowout prevention valve | |
| CN107542427A (en) | A kind of bypass cock valve | |
| CN105089544B (en) | Pressure-bearing sleeve protection packer | |
| CN101956540A (en) | Novel drill rod valve | |
| CN204327046U (en) | A kind of bypass pipe sealing device | |
| CN205876265U (en) | Bypass ooff valve | |
| CN206917631U (en) | Can bore can drag for the anti-pollution packer of horizontal well | |
| CN207406313U (en) | A kind of annular pressure downhole control valve | |
| CN105756593B (en) | A kind of uninterrupted circulating valve | |
| CN206608136U (en) | A kind of sidetracked hole packer | |
| CN106639897B (en) | A kind of double fluid drilling rod underground isolation runner conversion equipment | |
| SU1155727A1 (en) | Circulation valve | |
| CN203321418U (en) | Near-bit downhole blowout preventer | |
| CN203394438U (en) | Annular safety valve for electric pump well | |
| CN201705336U (en) | Simple shaft temporary closing testing pipe column | |
| CN102817554A (en) | Hydraulic-drive hammer with slurry shunting and side wall sealing functions | |
| CN201599006U (en) | Poppet valve type downhole integrated blowout preventer | |
| CN106949264A (en) | A kind of underground check-valves | |
| KR101776626B1 (en) | Flow line sil structure for diverter valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |