CN201218098Y - Over-line protector for logging instrument photomultiplier tube - Google Patents
Over-line protector for logging instrument photomultiplier tube Download PDFInfo
- Publication number
- CN201218098Y CN201218098Y CNU2008201086334U CN200820108633U CN201218098Y CN 201218098 Y CN201218098 Y CN 201218098Y CN U2008201086334 U CNU2008201086334 U CN U2008201086334U CN 200820108633 U CN200820108633 U CN 200820108633U CN 201218098 Y CN201218098 Y CN 201218098Y
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- CN
- China
- Prior art keywords
- photomultiplier
- wall
- phototube
- sleeve
- instrument
- 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 - Lifetime
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Abstract
The utility model relates to a photomultiplier transition wire protector of a log tool, which is used in an oil production log, and is applicable to a natural gamma-ray instrument with ultrathin diameter. The protector comprises a phototube sleeve with the outside diameter of 16.5 mm and the inside diameter of 13.8 mm, the phototube sleeve is sleeved outside the bare tube of a photomultiplier, and is arranged in the outer shell of the instrument, a clearance of 0.5 mm is arranged between the outer wall of the phototube sleeve and the inner wall of the outer shell of the instrument, the transition wires of electric wires are laid along the outer wall of the phototube sleeve, and silicone rubber is infused for fixing. Changing the internal structure of the natural gamma-ray instrument with the diameter of 21 mm reduces the size of the photomultiplier, and the silicone rubber infused between the outer wall of the phototube sleeve and the outer shell of the instrument fixes the transition wires of the electric wires, which are laid along the outer wall of the phototube sleeve, thereby not only the transition wire fixing role is played, but also the damping and the shielding roles acted on the photomultiplier are played.
Description
Technical field:
The utility model relates to a kind of logging instrument photomultiplier that is applicable to the ultra-fine natural gamma instrument of diameter that is used for the Petroleum Production well logging and crosses the line guard member.
Background technology:
At present, domestic most of oil field enters the later development stage, present many oil wells, water injection well have adopted some new technologies, new method, make original φ 38 series, φ 25.4 serial instruments because diameter is excessive, can not well adapt to the measurement of various well bores.So must develop the ultra-fine logger of diameter (diameter phi 21).Natural gamma instrument in the production logging instrument of diameter phi 21 is to be mainly used in CD, but because the restriction of instrument outside dimension and natural gamma probe (crystal, photomultiplier) size, can not cross logical line, make natural gamma logging device and not survey, influenced certainty of measurement and well logging timeliness with Other Instruments.Photomultiplier need adopt the R4177 type of import, the outside dimension of R4177 type photomultiplier is φ 17.5mm, the tool housing internal diameter size is φ 17mm, so dress is not entered, be because of in the outer wrap of R4177 type photomultiplier one layer thickness be the screen layer of 3.8mm, naked pipe is of a size of φ 13.7mm.
The utility model content:
The purpose of this utility model is to determine under the constant situation at φ 21 natural gamma logging device outside dimensions; redesign φ 21 natural gamma logging device internal constructions and dwindle the photomultiplier size; fixedly the electric wire between photomultiplier pipe box and the tool housing is crossed line; both played the effect of fixing line, and played again the logging instrument photomultiplier of photomultiplier damping and shielding action is crossed the line guard member.
It is to be φ 16.5mm by external diameter that logging instrument photomultiplier described in the utility model is crossed the line guard member; internal diameter is that φ 13.8mm photoelectricity pipe box constitutes; the photoelectric tube cover is enclosed within outside the photomultiplier naked pipe; place in the tool housing; be the 0.5mm gap between photoelectricity pipe box outer wall and the tool housing inwall; electric wire is crossed line and is laid along photoelectricity pipe box outer wall, injects silicon rubber and fixes.
This programme removes R4177 type photomultiplier screen layer, and the outside dimension of improved R4177 type photomultiplier naked pipe is φ 13.7mm, in order to keep shielding, designed a photoelectricity pipe box, material is the pig iron, and external diameter is φ 16.5mm, and internal diameter is φ 13.8mm.So just into tool housing can have been packed.
φ 21 natural gamma logging devices described in the utility model are crossed the line guard member and are installed; φ 21 natural gamma logging device internal constructions are changed; dwindled the photomultiplier size; silicon rubber charges between photoelectricity pipe box outer wall and the tool housing; fix the electric wire that is installed in along the laying of photoelectricity pipe box outer wall and crossed line; both played the effect of fixing line, played effect again photomultiplier damping and shielding.
Description of drawings:
Fig. 1 photoelectricity pipe box scheme of installation.
Wherein: 1, tool housing 2, gap 3, photoelectricity pipe box 4, photomultiplier naked pipe
The specific embodiment:
Below by accompanying drawing, logging instrument photomultiplier described in the utility model is crossed the line guard member further specify.
It is to be φ 16.5mm by external diameter that logging instrument photomultiplier described in the utility model is crossed the line guard member; internal diameter is that φ 13.8mm photoelectricity pipe box 3 constitutes; photoelectricity pipe box 3 is enclosed within outside the photomultiplier naked pipe 4; place in the tool housing 1; between photoelectricity pipe box 3 outer walls and tool housing 1 inwall is 0.5mm gap 2; electric wire is crossed line and is laid along photoelectricity pipe box 3 outer walls, injects silicon rubber and fixes.
Claims (1)
1, a kind of logging instrument photomultiplier is crossed the line guard member; it is characterized in that: by external diameter is φ 16.5mm; internal diameter is that φ 13.8mm photoelectricity pipe box constitutes; the photoelectric tube cover is enclosed within outside the photomultiplier naked pipe; place in the tool housing; be the 0.5mm gap between photoelectricity pipe box outer wall and the tool housing inwall, electric wire is crossed line and is laid along photoelectricity pipe box outer wall, injects silicon rubber and fixes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201086334U CN201218098Y (en) | 2008-06-04 | 2008-06-04 | Over-line protector for logging instrument photomultiplier tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201086334U CN201218098Y (en) | 2008-06-04 | 2008-06-04 | Over-line protector for logging instrument photomultiplier tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201218098Y true CN201218098Y (en) | 2009-04-08 |
Family
ID=40540935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201086334U Expired - Lifetime CN201218098Y (en) | 2008-06-04 | 2008-06-04 | Over-line protector for logging instrument photomultiplier tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201218098Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104319214A (en) * | 2014-09-30 | 2015-01-28 | 北京空间机电研究所 | Packaging method of anti-vibration type photoelectric detector |
-
2008
- 2008-06-04 CN CNU2008201086334U patent/CN201218098Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104319214A (en) * | 2014-09-30 | 2015-01-28 | 北京空间机电研究所 | Packaging method of anti-vibration type photoelectric detector |
| CN104319214B (en) * | 2014-09-30 | 2017-04-26 | 北京空间机电研究所 | Packaging method of anti-vibration type photoelectric detector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090408 |