CN204646160U - A kind of side valve type pressure pulse generator - Google Patents
A kind of side valve type pressure pulse generator Download PDFInfo
- Publication number
- CN204646160U CN204646160U CN201520364900.4U CN201520364900U CN204646160U CN 204646160 U CN204646160 U CN 204646160U CN 201520364900 U CN201520364900 U CN 201520364900U CN 204646160 U CN204646160 U CN 204646160U
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- inner casing
- slide core
- casing
- pulse generator
- type pressure
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Abstract
The utility model relates to oil and gas well drilling field of tool, especially a kind of side valve type pressure pulse generator.Technical problem to be solved in the utility model is to provide the simple side valve type pressure pulse generator of a kind of structure, comprise shell, inner casing, slide core, lower casing, collet, spring, described inner casing upper/lower terminal has opening, described spring housing is contained in the lower end of slide core, described collet is threaded in inner casing lower end, described slide core is arranged in inner casing upper end, and described upper shell, lower casing are threaded into an entirety, and described inner casing is arranged in shell, lower casing.Compared with prior art the utility model structure is simple, can adjust the frequency of pulse easily, is not subject to the impact of drilling depth and hole deviation simultaneously.
Description
Technical field
The utility model relates to oil and gas well drilling field of tool, especially a kind of side valve type pressure pulse generator.
Background technology
In Process of Oil Well Drilling, exist between drilling tool and the borehole wall and comprise the frictional resistance of axial and circumferential, this resistance changes along with the difference of hole deviation, particularly in directional well or directional horizontal wells construction, and the higher drag effects degree of depth of drilling well.Tackle the conventional way of this resistance to have and increase the axial mechanical thrust of drilling tool or utilize waterpower pulse to produce hydraulic shock vibration, and waterpower pulse produces, and hydraulic shock vibration is relatively easy to be realized.The technology of current generation waterpower pulse mainly adopts the mode of moushroom valve formula throttling, and the technology realizing disc type throttling adopts screw rod or impeller to rotate to drive moushroom valve, makes the flow channels on moushroom valve become large and diminish.This technical approach is structurally comparatively complicated, and tool combinations length is unfavorable.
Utility model content
Technical problem to be solved in the utility model is to provide the simple side valve type pressure pulse generator of a kind of structure.
The utility model solves the technical scheme that its technical problem adopts: a kind of side valve type pressure pulse generator, comprise shell, inner casing, slide core, lower casing, collet, spring, described inner casing upper/lower terminal has opening, described spring housing is contained in the lower end of slide core, described collet is threaded in inner casing lower end, described slide core is arranged in inner casing upper end, and described upper shell, lower casing are threaded into an entirety, and described inner casing is arranged in shell, lower casing.
Further, the number of described inner casing upper/lower terminal upper shed is 4 and is evenly arranged.
The beneficial effect of utility model is: the side valve type pressure pulse generator that the utility model proposes, can be implemented in drilling fluid by exciting the pulse producing certain frequency in the drilling tool pipeline of top during this generator, this pulse may be used for the energy source of drilling tool axial vibration.Compared with prior art the utility model structure is simple, can adjust the frequency of pulse easily, is not subject to the impact of drilling depth and hole deviation simultaneously.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of inner casing in embodiment.
Shown in figure: the upper shell of 1-, 2-inner casing, 3-slide core, 4-opening, 5-lower casing, 6-collet, 7-spring.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is further illustrated.
As Fig. 1, shown in 2, a kind of side valve type pressure pulse generator of the utility model, comprise shell 1, inner casing 2, slide core 3, lower casing 5, collet 6, spring 7, on described inner casing 2, lower two ends have opening 4, described slide core 3 is up big and down small structures, described spring 7 is sleeved on the lower end of slide core 3, described collet 6 is threaded in inner casing 2 lower end, collet 6 is hollow structure, described slide core 3 is arranged in inner casing 2 upper end, slide core 3 lower end can pass collet 6 centre and spring 7 one end is positioned on collet 6, described upper shell 1, lower casing 5 is threaded into an entirety, described inner casing 2 is arranged on shell 1, in lower casing 5.Time in the entirety that described inner casing 2 is arranged on shell 1, lower casing 5 forms, all there is certain interval the left and right sides of inner casing 2 with upper shell 1, lower casing 5 inside, and this gap can be passed through by liquid and form runner.
When the utility model is in actual well drilled process, circulation of fluid enters into inner casing 2 from upper shell 1 upper end, and pressure is produced to slide core 3, from the action of hydraulic force of circulation of fluid in slide core 3, promote slide core 3 descending, and spring 7 is gradually reduced, the pulse be now applied in slide core 3 increases.When slide core 3 moves down into opening 4 position, circulation of fluid just flows to the gap between inner casing 2 and upper shell 1, lower casing 5 from the opening 4 of inner casing 2 upper end, then flows to inner casing 2 by the opening 4 on inner casing 2 lower end, finally flows out lower casing 5.Like this because the pulse acted in slide core 3 of opening 4 reduces, now slide core 3 is up under the effect of spring 7, when slide core 3 is up to the position sheltering from inner casing 2 upper end open 4, circulation of fluid cannot circulate, after act on pulse in slide core 3 and increase, start again to drive slide core 3 to move down, iterative cycles like this, thus realize the hydraulic coupling pulsing circulation change in pipeline.
In order to improve circulation of fluid circulation effect, preferred embodiment, the number of described inner casing 2 upper/lower terminal upper shed 4 is 4 and is evenly arranged.Such circulation of fluid has a large amount of liquid flows on inner casing 2, and what the pulse in slide core 3 was reduced is faster, and namely pulse cycle change is faster.
Claims (2)
1. a side valve type pressure pulse generator, it is characterized in that: comprise shell (1), inner casing (2), slide core (3), lower casing (5), collet (6), spring (7), on described inner casing (2), lower two ends have opening (4), described spring (7) is sleeved on the lower end of slide core (3), described collet (6) is threaded in inner casing (2) lower end, described slide core (3) is arranged in inner casing (2) upper end, described upper shell (1), lower casing (5) is threaded into an entirety, described inner casing (2) is arranged on shell (1), in lower casing (5).
2. a kind of side valve type pressure pulse generator as claimed in claim 1, is characterized in that: the number of described inner casing (2) upper/lower terminal upper shed (4) is 4 and is evenly arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520364900.4U CN204646160U (en) | 2015-05-29 | 2015-05-29 | A kind of side valve type pressure pulse generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520364900.4U CN204646160U (en) | 2015-05-29 | 2015-05-29 | A kind of side valve type pressure pulse generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204646160U true CN204646160U (en) | 2015-09-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520364900.4U Expired - Fee Related CN204646160U (en) | 2015-05-29 | 2015-05-29 | A kind of side valve type pressure pulse generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204646160U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105626049A (en) * | 2016-03-28 | 2016-06-01 | 广东普洛测控科技有限公司 | Underground high-frequency pulse generator |
| CN105696969A (en) * | 2016-04-14 | 2016-06-22 | 东营万邦石油科技有限责任公司 | Pulse-mechanical-impacting-type well cementing vibrator |
| CN105696970A (en) * | 2016-04-14 | 2016-06-22 | 东营万邦石油科技有限责任公司 | Intermittent liquid flow impacting type well cementation vibrator |
| CN106223856A (en) * | 2016-08-31 | 2016-12-14 | 中国石油集团渤海钻探工程有限公司 | Spring valve type drilling fluid pulse generating means |
| CN112282719A (en) * | 2020-11-09 | 2021-01-29 | 东北石油大学 | Hydraulic pulse generator and hydraulic pulse fracturing device |
| CN112681994A (en) * | 2021-03-22 | 2021-04-20 | 成都迪普金刚石钻头有限责任公司 | Low-pressure-consumption high-amplitude hydraulic pulse device and method |
-
2015
- 2015-05-29 CN CN201520364900.4U patent/CN204646160U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105626049A (en) * | 2016-03-28 | 2016-06-01 | 广东普洛测控科技有限公司 | Underground high-frequency pulse generator |
| CN105626049B (en) * | 2016-03-28 | 2019-11-15 | 广东普洛测控科技有限公司 | A kind of underground high frequency pulse generator |
| CN105696969A (en) * | 2016-04-14 | 2016-06-22 | 东营万邦石油科技有限责任公司 | Pulse-mechanical-impacting-type well cementing vibrator |
| CN105696970A (en) * | 2016-04-14 | 2016-06-22 | 东营万邦石油科技有限责任公司 | Intermittent liquid flow impacting type well cementation vibrator |
| CN105696970B (en) * | 2016-04-14 | 2018-05-08 | 东营万邦石油科技有限责任公司 | Interval liquid flow impact formula well cementation vibrator |
| CN106223856A (en) * | 2016-08-31 | 2016-12-14 | 中国石油集团渤海钻探工程有限公司 | Spring valve type drilling fluid pulse generating means |
| CN112282719A (en) * | 2020-11-09 | 2021-01-29 | 东北石油大学 | Hydraulic pulse generator and hydraulic pulse fracturing device |
| CN112282719B (en) * | 2020-11-09 | 2023-08-18 | 东北石油大学 | Hydraulic pulse generator and hydraulic pulse fracturing device |
| CN112681994A (en) * | 2021-03-22 | 2021-04-20 | 成都迪普金刚石钻头有限责任公司 | Low-pressure-consumption high-amplitude hydraulic pulse device and method |
| CN112681994B (en) * | 2021-03-22 | 2021-07-13 | 成都迪普金刚石钻头有限责任公司 | Low-pressure-consumption high-amplitude hydraulic pulse device and method |
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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: 20150916 Termination date: 20180529 |