CN201620877U - Main valve core of wireless inclinometer - Google Patents
Main valve core of wireless inclinometer Download PDFInfo
- Publication number
- CN201620877U CN201620877U CN2010203011132U CN201020301113U CN201620877U CN 201620877 U CN201620877 U CN 201620877U CN 2010203011132 U CN2010203011132 U CN 2010203011132U CN 201020301113 U CN201020301113 U CN 201020301113U CN 201620877 U CN201620877 U CN 201620877U
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- CN
- China
- Prior art keywords
- valve core
- core housing
- spool body
- main valve
- wireless drilling
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to the field of oil drilling engineering, in particular to an auxiliary device of a wireless inclinometer. A main valve core of a wireless inclinometer comprises a main body and a valve core sleeve, wherein the main body and the valve core sleeve are arranged independently; the valve core sleeve is sheathed at one end of the main body; and threads are formed at the other end of the main body. The main valve core has a simple structure. Different specifications of main valve cores can be manufactured from a universal main body and valve core sleeve of different sizes to generate different pressure signals, thereby facilitating the strength adjustment of the pressure signal according to the well condition, the well depth and so on.
Description
Technical field
The utility model relates to the petroleum drilling engineering field, relates in particular to the servicing unit of wireless drilling inclinometers.
Background technology
Wireless drilling inclinometers is a kind of important directional drill tool, is widely used in the petroleum drilling engineering.This instrument is that the downhole parameters that sensor records is encoded according to certain mode, produce pulse signal, the motion of this pulse signal control servo valve valve head, utilize the mud of circulation to make the main valve valve head produce synchronous motion, so just controlled the mud circulation area between main valve valve head and the following restrictor ring.Mention under the state at the main valve valve head, the mud in the drill string can more successfully pass through from restrictor ring; When main valve valve head depressed state, the mud circulation area reduces, thereby produced a positive mud-pressure pulses in drill string, so the main valve valve head is very crucial at work, but existing wireless drilling inclinometers impulse generator main valve head is fragile, and the main valve plug of main valve valve head is installed on the signal valve rod, spool and valve core housing are made of one, and the cost height also has owing to can not change the main valve plug of different appearance and sizes, inconvenience is according to hole condition, and factors such as well depth are adjusted the power of pressure signal.
Summary of the invention
The purpose of this utility model is to avoid the deficiencies in the prior art to provide a kind of simple in structure, and spool and valve core housing split are provided with, and can be according to hole condition, and factors such as well depth are adjusted the wireless drilling inclinometers main valve valve head of the power of pressure signal.
For achieving the above object, the technical scheme that the utility model is taked is: a kind of wireless drilling inclinometers main valve plug, include the spool body, and valve core housing, described spool body and valve core housing are the split setting, valve core housing is located at an end of spool body; The other end of spool body is provided with screw thread.Screw thread is used for being connected with the impulse generator signal valve rod of wireless drilling inclinometers.
Further, described spool body center is provided with through hole, and described through hole cross section is rounded.
Further, the through hole cross section of described spool body and valve core housing one end is square, and is used to install the main valve plug demounting tool, so that change main valve plug.
Further, be provided with in the position that the spool body is connected with valve core housing and be connected step, the valve core housing lower end is provided with draw-in groove, and described draw-in groove is fastened on and connects on the step.
Further, be provided with chamfering on described valve core housing top.
Further, described spool body is made by tool steel, and valve core housing is made by carbide alloy.
Further, spool body and valve core housing pass through adhering with epoxy resin.
The beneficial effects of the utility model are: simple in structure, owing to can use the valve core housing of general spool body and different size to produce the main valve plug of different size, and then produce different pressure signals, and to be convenient to according to hole condition, factors such as well depth are adjusted the power of pressure signal.
Description of drawings
Fig. 1 is a sectional view of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing principle of the present utility model and feature are described, institute gives an actual example and only is used to explain the utility model, is not to be used to limit scope of the present utility model.
Embodiment 1: as shown in Figure 1, a kind of wireless drilling inclinometers main valve plug includes spool body 1, valve core housing 2, and described spool body 1 is the split setting with valve core housing 2, valve core housing 2 is set in an end of spool body 1; The other end of spool body 1 is provided with screw thread 3.Described spool body 1 center is provided with through hole 4, and described through hole 4 cross sections are rounded.Described spool body 1 is square with the through hole cross section of valve core housing 2 one ends.Be provided with on the spool body 1 of valve core housing 2 and spool body 1 junction and be connected step 11, the valve core housing lower end is provided with draw-in groove 21, and described draw-in groove 21 is fastened on and connects on the step 11.Be provided with chamfering 22 on described valve core housing 2 tops.Spool body 1 is made by tool steel, and valve core housing 2 is made by carbide alloy.Spool body 1 passes through adhering with epoxy resin with valve core housing 2.
The above only is preferred embodiment of the present utility model, and is in order to restriction the utility model, not all within spirit of the present utility model and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (7)
1. a wireless drilling inclinometers main valve plug includes the spool body, and valve core housing is characterized in that, described spool body and valve core housing are for dividing body structure, and valve core housing is set in an end of spool body; The other end of spool body is provided with screw thread.
2. wireless drilling inclinometers main valve plug as claimed in claim 1 is characterized in that, described spool body center is provided with through hole, and described through hole cross section is rounded.
3. wireless drilling inclinometers main valve plug as claimed in claim 1 is characterized in that, the through hole cross section of described spool body and valve core housing one end is square.
4. as the arbitrary described wireless drilling inclinometers main valve plug of claim 1 to 3, it is characterized in that, be provided with in the position that the spool body is connected with valve core housing and be connected step, be provided with draw-in groove in the valve core housing lower end, described draw-in groove is fastened on and connects on the step.
5. as the arbitrary described wireless drilling inclinometers main valve plug of claim 1 to 3, it is characterized in that, be provided with chamfering on described valve core housing top.
6. as the arbitrary described wireless drilling inclinometers main valve plug of claim 1 to 3, it is characterized in that described spool body adopts tool steel to make, valve core housing adopts carbide alloy to make.
7. as the arbitrary described wireless drilling inclinometers main valve plug of claim 1 to 3, it is characterized in that, pass through adhering with epoxy resin between spool body and the valve core housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010203011132U CN201620877U (en) | 2010-01-20 | 2010-01-20 | Main valve core of wireless inclinometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010203011132U CN201620877U (en) | 2010-01-20 | 2010-01-20 | Main valve core of wireless inclinometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201620877U true CN201620877U (en) | 2010-11-03 |
Family
ID=43024333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010203011132U Expired - Fee Related CN201620877U (en) | 2010-01-20 | 2010-01-20 | Main valve core of wireless inclinometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201620877U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102108857A (en) * | 2010-12-23 | 2011-06-29 | 中国石油集团渤海钻探工程有限公司 | Restrictor ring bearing assembly |
-
2010
- 2010-01-20 CN CN2010203011132U patent/CN201620877U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102108857A (en) * | 2010-12-23 | 2011-06-29 | 中国石油集团渤海钻探工程有限公司 | Restrictor ring bearing assembly |
| CN102108857B (en) * | 2010-12-23 | 2013-11-20 | 中国石油集团渤海钻探工程有限公司 | Restrictor ring bearing assembly |
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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: 20101103 Termination date: 20120120 |