CN203961965U - Without oil sac formula impulse generator - Google Patents
Without oil sac formula impulse generator Download PDFInfo
- Publication number
- CN203961965U CN203961965U CN201420416045.2U CN201420416045U CN203961965U CN 203961965 U CN203961965 U CN 203961965U CN 201420416045 U CN201420416045 U CN 201420416045U CN 203961965 U CN203961965 U CN 203961965U
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- piston
- rod
- valve
- impulse generator
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Abstract
The utility model discloses a kind of without oil sac formula impulse generator, comprise housing, valve seat, main valve head, piston rod, piston, valve rod and electromagnetic valve component, described valve seat is arranged on the left end of described housing, described piston rod is fixedly mounted in described housing and coordinates with the inwall of described housing and forms sealing, left-hand end at described piston rod covers the through hole being provided with for the drilling fluid that circulates, and described piston is arranged in described piston rod and coordinates with the inwall of described piston rod and forms sealing; The right-hand member of described valve rod is connected to described electromagnetic valve component, left end is connected to described main valve head through described piston rod and described piston, described electromagnetic valve component is controlled the action of described main valve head by described valve rod, described piston can be along forming sealing between described stem movement and described piston and described valve rod.Stronger without oil sac formula impulse generator reliability in the utility model.
Description
Technical field
The utility model relates to oil drilling equipment field, in particular to a kind of without oil sac formula impulse generator.
Background technology
In recent years, along with the rise of oil drilling industry, the application of various measurement while-drilling instruments is more and more extensive.Impulse generator, as the important component part of measurement while-drilling instrument, plays vital effect in the use of measurement while-drilling instrument.Existing mud pulse generator is in impulse generator inside, to take oil sac (colloidal materials) to form sealed environment as core component, and portion is full of the lubrication oil of stable performance within it.Because oil sac is to be synthesized by colloidal materials, it has certain compressibility, and according to this feature, pressure that can balance shaft bottom in impulse generator underground work, to guarantee that impulse generator can use normally.But in actual use, due to wellbore construction subsurface environment more complicated, colloidal materials high temperature resistance, erosion-resisting ability are lower; And colloid material is partially soft is easily scratched and causes impulse generator can not normally carry out work by hard thing.
Utility model content
Technical problem to be solved in the utility model is, provide a kind of reliability stronger without oil sac formula impulse generator.
Therefore, the technical solution of the utility model is as follows:
Without an oil sac formula impulse generator, comprise housing, valve seat, main valve head, piston rod, piston, valve rod and electromagnetic valve component, wherein:
Described valve seat is arranged on the left end of described housing, described piston rod is fixedly mounted in described housing and coordinates with the inwall of described housing and forms sealing, left-hand end at described piston rod covers the through hole being provided with for the drilling fluid that circulates, and described piston is arranged in described piston rod and coordinates with the inwall of described piston rod and forms sealing;
The right-hand member of described valve rod is connected to described electromagnetic valve component, left end is connected to described main valve head through described piston rod and described piston, described electromagnetic valve component is controlled the action of described main valve head by described valve rod, described piston can be along forming sealing between described stem movement and described piston and described valve rod.
In this technical scheme, adopt the movable sealing of piston and piston rod to form a sealed environment in the enclosure interior of pulser, portion is full of high-temperature liquid force feed within it simultaneously, by the drilling liquid pressure in shaft bottom and the pressure differential of impulse generator internal hydraulic pressure oil, promote piston and move in piston rod, to increase or to reduce the next final balanced drilling liquid of internal oil pressure of impulse generator and the pressure between impulse generator; When impulse generator is worked, signal valve rod is connected with main valve head through piston center, so neither pulse signal is transmitted in impact, pressure reduction between again can dummy piston inside and outside, thereby just make impulse generator can adapt to the construction of the complex working conditions such as high temperature, high pressure, both can reduce the caused pulser fault of rubber components, can improve the ability of impulse generator high temperature resistance, anti-high pressure again, can improve again the applicable ability of impulse generator complex working condition, finally improve to a great extent the Performance and quality of impulse generator.
Further, also comprise sealing ring and pressing plate, described sealing ring is arranged between described valve rod and described piston, and described pressing plate is fixedly mounted on the left end of described piston for compressing described sealing ring, can guarantee better the sealing between piston and valve rod.
Accompanying drawing explanation
Fig. 1 be according to the utility model embodiment without oil sac formula impulse generator structural representation.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.It should be noted that, in the situation that not conflicting, the application's embodiment and the feature in embodiment can combine mutually.
As shown in Figure 1, according to embodiment of the present utility model without oil sac formula impulse generator, comprise housing 1, valve seat 2, main valve head 3, piston rod 4, piston 5, valve rod 6 and electromagnetic valve component 7, wherein:
Described valve seat 2 is arranged on the left end of described housing 1, described piston rod 4 is fixedly mounted in described housing 1 and coordinates with the inwall of described housing 1 and forms sealing, on the left side of described piston rod 4 end cap 41, be provided with the through hole 42 for the drilling fluid that circulates, described piston 5 is arranged in described piston rod 4 and coordinates with the inwall of described piston rod 4 and forms sealing;
The right-hand member of described valve rod 6 is connected to described electromagnetic valve component 7, left end is connected to described main valve head 3 through described piston rod 4 and described piston 5, described electromagnetic valve component 7 is controlled the action of described main valve head 3 by described valve rod 6, described piston 5 can move and described piston 5 and 6 formation sealings of described valve rod along described valve rod 6.
Wherein, 43 is the right side end cap of piston rod 4.
In this technical scheme, adopt piston 5 and the movable sealing of piston rod 3 to form a sealed environment in housing 1 inside of pulser, portion is full of high-temperature liquid force feed within it simultaneously, by the drilling liquid pressure in shaft bottom and the pressure differential of impulse generator internal hydraulic pressure oil, promote piston 5 in the interior motion of piston rod 4, to increase or to reduce the next final balanced drilling liquid of internal oil pressure of impulse generator and the pressure between impulse generator; When impulse generator is worked, signal valve rod is connected with main valve head 3 through piston center, so neither pulse signal is transmitted in impact, again can dummy piston 5 pressure reduction between inside and outside, thereby just make impulse generator can adapt to the construction of the complex working conditions such as high temperature, high pressure, both can reduce the caused pulser fault of rubber components, can improve the ability of impulse generator high temperature resistance, anti-high pressure again, can improve again the applicable ability of impulse generator complex working condition, finally improve to a great extent the Performance and quality of impulse generator.
During impulse generator work, piston 5 is in the interior reciprocating motion of piston rod 4, with the pressure between balanced drilling liquid and impulse generator internal hydraulic pressure oil, main valve head is connected with valve seat by piston simultaneously, relies on the electromagnetic signal of impulse generator to control the runner break-make between main valve head 3 and valve seat 2; When main valve head 3, lift off a seat 2 time, drilling fluid enters cavity by runner, and drilling liquid pressure is greater than impulse generator internal hydraulic pressure oil pressure, promotes piston 5 and moves to inside; Otherwise piston 5 outwards moves.
Further, also comprise sealing ring 8 and pressing plate 9, described sealing ring 8 is arranged between described valve rod 6 and described piston 5, and described pressing plate 9 is fixedly mounted on the left end of described piston 5 for compressing described sealing ring 8, can guarantee better the sealing between piston 5 and valve rod 6.
In sum, content of the present utility model is not limited in the above-described embodiment, and those skilled in the art can propose other embodiment within technological guidance's thought of the present utility model, but within this embodiment is included in scope of the present utility model.
Claims (2)
1. without an oil sac formula impulse generator, it is characterized in that, comprise housing (1), valve seat (2), main valve head (3), piston rod (4), piston (5), valve rod (6) and electromagnetic valve component (7), wherein:
Described valve seat (2) is arranged on the left end of described housing (1), described piston rod (4) is fixedly mounted in described housing (1) and coordinates with the inwall of described housing (1) and forms sealing, on the left side end cap (41) of described piston rod (4), be provided with the through hole (42) for the drilling fluid that circulates, described piston (5) is arranged in described piston rod (4) and coordinates with the inwall of described piston rod (4) and forms sealing;
The right-hand member of described valve rod (6) is connected to described electromagnetic valve component (7), left end is connected to described main valve head (3) through described piston rod (4) and described piston (5), described electromagnetic valve component (7) is controlled the action of described main valve head (3) by described valve rod (6), described piston (5) can form sealing along between described valve rod (6) motion and described piston (5) and described valve rod (6).
2. according to claim 1 without oil sac formula impulse generator, it is characterized in that, also comprise sealing ring (8) and pressing plate (9), described sealing ring (8) is arranged between described valve rod (6) and described piston (5), and the left end that described pressing plate (9) is fixedly mounted on described piston (5) is used for compressing described sealing ring (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420416045.2U CN203961965U (en) | 2014-07-25 | 2014-07-25 | Without oil sac formula impulse generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420416045.2U CN203961965U (en) | 2014-07-25 | 2014-07-25 | Without oil sac formula impulse generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203961965U true CN203961965U (en) | 2014-11-26 |
Family
ID=51922564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420416045.2U Expired - Fee Related CN203961965U (en) | 2014-07-25 | 2014-07-25 | Without oil sac formula impulse generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203961965U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106050159A (en) * | 2016-08-11 | 2016-10-26 | 中石化石油工程技术服务有限公司 | Drill string clutching tool |
| CN108953271A (en) * | 2018-09-10 | 2018-12-07 | 中国石油集团西部钻探工程有限公司 | The energy-saving MWD pulser servo valve of hydraulic resistance balance |
| CN109372496A (en) * | 2017-11-22 | 2019-02-22 | 中国石油化工股份有限公司 | Water injection well impulse generator high pressure self compensation mechanism |
-
2014
- 2014-07-25 CN CN201420416045.2U patent/CN203961965U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106050159A (en) * | 2016-08-11 | 2016-10-26 | 中石化石油工程技术服务有限公司 | Drill string clutching tool |
| CN109372496A (en) * | 2017-11-22 | 2019-02-22 | 中国石油化工股份有限公司 | Water injection well impulse generator high pressure self compensation mechanism |
| CN108953271A (en) * | 2018-09-10 | 2018-12-07 | 中国石油集团西部钻探工程有限公司 | The energy-saving MWD pulser servo valve of hydraulic resistance balance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210115 Address after: 100007 No. 9 North Main Street, Dongcheng District, Beijing, Dongzhimen Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC Bohai Drilling Engineering Co.,Ltd. Address before: 300457 Tianjin Binhai New Area Development Zone Huanghai Road 106 Bohai Drilling Engineering Co., Ltd. science and Technology Development Office Patentee before: CNPC Bohai Drilling Engineering Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141126 Termination date: 20210725 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |