CN205297570U - Logging instrument gamma detector - Google Patents
Logging instrument gamma detector Download PDFInfo
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- CN205297570U CN205297570U CN201620054698.XU CN201620054698U CN205297570U CN 205297570 U CN205297570 U CN 205297570U CN 201620054698 U CN201620054698 U CN 201620054698U CN 205297570 U CN205297570 U CN 205297570U
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- photomultiplier
- circuit board
- shell
- logging instrument
- crystal
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Abstract
The utility model belongs to oil field logging instrument field especially relates to a logging instrument gamma detector, including shell, detection crystal, photomultiplier and circuit board, the shell include barrel and lower barrel, the two is through threaded connection, the detection crystal set up under in the barrel, photomultiplier set up in the top of surveying the crystal and outside lieing in down the barrel, be provided with the transparent cushion of printing opacity and cushioning effect between detection crystal and the photomultiplier, the circuit board set up in photomultiplier's top, the circuit board passes through the cable and links to each other with power module with control module, the circuit board be circular structure, the outside of circuit board is provided with the tetrafluoro cover, the outside of tetrafluoro cover is provided with damping spring, the top that the tetrafluoro overlaps is provided with shock absorption rubber mat, is provided with two rubber rings between photomultiplier and the last barrel at least, the packing has the heat dissipation silicone grease between the rubber ring. In the light transmittance process, the light loss is little, has effectively improved investigation depth and sensitivity.
Description
Technical field
The utility model belongs to oil reservoir logging instrument field, relates in particular to a kind of logging instrument gamma detector.
Background technology
In oil drilling and recovery process, in order to differentiate oil reservoir, and economical, carry out oil reservoir rationally, efficiently and gather, needUse various testers to carry out formation testing, to obtain the log of well depth as ordinate. Gamma rays logging equipment isA wherein the most frequently used class.
In stratum, contain natural radioactivity material, wherein main radioactive substance is uranium, thorium, potassium, and these materials were decayingIn journey, radiate α, β and gamma-rays, wherein gamma-rays penetration capacity is strong, is difficult for by other material absorbing, is the main of well loggingOne of detected object. Gamma rays logging equipment carries out stratigraphic analysis by measuring gamma ray intensity. But existing galThere are two problems in agate gamma ray log equipment: on the one hand, the light loss of existing equipment is large, therefore little, the poor sensitivity of investigation depth;On the other hand, the heat radiation of will stopping after existing equipment use a period of time, then just can work on, and has a strong impact on testEfficiency, thermal diffusivity and heat endurance all have much room for improvement.
Summary of the invention
The utility model provides a kind of logging instrument gamma detector, to solve the problem proposing in above-mentioned background technology.
The technical problem that the utility model solves realizes by the following technical solutions: the utility model provides a kind of logging instrumentGamma detector, comprises shell, crystal detection, photomultiplier and circuit board, and described shell comprises upper shell and lower shell,The two is threaded connection, described crystal detection is arranged in lower shell, and described photomultiplier is arranged on crystal detectionTop and be positioned at outside lower shell, between crystal detection and photomultiplier, be provided with the transparent rubber cushion of printing opacity and cushioning effect, instituteThe circuit board of stating is arranged on the top of photomultiplier, and circuit board is connected with supply module with control module by cable, circuit boardFor circular configuration, the arranged outside of circuit board has tetrafluoro cover, and the arranged outside of tetrafluoro cover has damping spring, and establish the top of tetrafluoro coverBe equipped with damping rubber pad, between photomultiplier and upper shell, be at least provided with two rubber rings, between rubber ring, be filled with heat radiation siliconFat.
The upper end of described upper shell is provided with the screw thread for stube cable head or upper level instrument. Described crystal detection is iodineChange sodium crystal, the shell of crystal detection is that aluminium alloy is made. Described upper shell is made up of electrical pure iron.
The beneficial effects of the utility model are:
1, the utility model is in light transmittance process, and light loss is little, and therefore investigation depth and sensitivity are higher, existing similar productProduct can only formation testing top layer, but the utility model MTD can reach following 20 centimetres of stratum.
2, the utility model is carrying out effective improvement aspect raising thermal diffusivity and heat endurance, and making need not in instrument use procedureThe heat radiation of stopping, therefore can continuous operation, has improved testing efficiency.
3, by adopting the photoelectric component of heatproof, make temperature resistant range be extended to-45～175 DEG C by-15～85 DEG C.
4, the utility model adopts many places Aseismatic Design, has effectively protected inner photoelectric cell, has further improved the steady of equipmentQualitative.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
In figure: 1-lower shell, the shell of 2-crystal detection, 3-crystal detection, the transparent rubber cushion of 4-, 5-photomultiplier, 6-rubberGlue ring, 7-upper shell, 8-damping spring, 9-cable, 10-damping rubber pad, 11-tetrafluoro cover, 12-circuit board, the 13-silicon that dispels the heatFat.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described further:
The utility model comprises shell, crystal detection 3, photomultiplier 5 and circuit board 12, and described shell comprises upper shell7 and lower shell 1, the two is threaded connection, and described crystal detection 3 is arranged in lower shell 1, described photomultiplier5 are arranged on the top of crystal detection 3 and are positioned at outside lower shell 1, between crystal detection 3 and photomultiplier 5, have been provided withThe transparent rubber cushion 4 of light and cushioning effect, described circuit board 12 is arranged on the top of photomultiplier 5, and circuit board 12 passes throughCable 9 is connected with supply module with control module. Circuit board 12 is circular configuration, and the length of instrument is reduced. CircuitThe arranged outside of plate 12 has tetrafluoro cover 11. The arranged outside of tetrafluoro cover 11 has damping spring 8, and the top of tetrafluoro cover 11 is provided withDamping rubber pad 10, is at least provided with two rubber rings 6 between photomultiplier 5 and upper shell 7, this several places design effectively ensuresThe anti-seismic performance of equipment. Between rubber ring 6, be filled with heat dissipating silicone grease 13, further ensured the thermal diffusivity of device.
The upper end of described upper shell 7 is provided with the screw thread for stube cable head or upper level instrument, is convenient to the mould between instrumentBlocking assembly and connection.
Described crystal detection 3 is sodium iodide crystal. In order to reduce light loss, improve investigation depth and sensitivity, crystal detectionShell 2 made by aluminium alloy.
Described upper shell 7 is made up of electrical pure iron, can effectively improve sense magnetic and the diamagnetic performance of equipment.
In the utility model light transmittance process, light loss is little, and therefore investigation depth and sensitivity are higher, and existing like product onlyThe top layer of energy formation testing, but the utility model MTD can reach following 20 centimetres of stratum. The utility model is improving thermal diffusivityCarried out effective improvement with heat endurance aspect, the heat radiation that makes need not stop in instrument use procedure, therefore can continuous operation,Improve testing efficiency; By adopting the photoelectric component of heatproof, make temperature resistant range be extended to-45～175 DEG C by-15～85 DEG C.The utility model adopts many places Aseismatic Design, has effectively protected inner photoelectric cell, has further improved the stability of equipment.
Claims (4)
1. a logging instrument gamma detector, comprises shell, crystal detection (3), photomultiplier (5) and circuit board (12),It is characterized in that: described shell comprises upper shell (7) and lower shell (1), and the two is threaded connection, described detectionCrystal (3) is arranged in lower shell (1), and described photomultiplier (5) is arranged on top and the position of crystal detection (3)Outside lower shell (1), between crystal detection (3) and photomultiplier (5), be provided with the transparent adhesive tape of printing opacity and cushioning effectPad (4), described circuit board (12) is arranged on the top of photomultiplier (5), and circuit board (12) is by cable (9)Be connected with supply module with control module, circuit board (12) is circular configuration, and the arranged outside of circuit board (12) has tetrafluoro cover(11), the arranged outside of tetrafluoro cover (11) has damping spring (8), and the top of tetrafluoro cover (11) is provided with damping rubber pad (10),Between photomultiplier (5) and upper shell (7), be at least provided with two rubber rings (6), rubber ring is filled with between (6)Heat dissipating silicone grease (13).
2. a kind of logging instrument gamma detector according to claim 1, is characterized in that: described upper shell (7)Upper end is provided with the screw thread for stube cable head or upper level instrument.
3. a kind of logging instrument gamma detector according to claim 1, is characterized in that: described crystal detection (3)For sodium iodide crystal, the shell of crystal detection (2) is made for aluminium alloy.
4. a kind of logging instrument gamma detector according to claim 1, is characterized in that: described upper shell (7) byElectrical pure iron is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620054698.XU CN205297570U (en) | 2016-01-20 | 2016-01-20 | Logging instrument gamma detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620054698.XU CN205297570U (en) | 2016-01-20 | 2016-01-20 | Logging instrument gamma detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205297570U true CN205297570U (en) | 2016-06-08 |
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ID=56429163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620054698.XU Active CN205297570U (en) | 2016-01-20 | 2016-01-20 | Logging instrument gamma detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205297570U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111766634A (en) * | 2020-06-19 | 2020-10-13 | 中国石油天然气股份有限公司 | Vibration reduction type gamma sensor assembly |
| CN113790797A (en) * | 2021-08-06 | 2021-12-14 | 中国科学院国家空间科学中心 | Glass tube detector |
-
2016
- 2016-01-20 CN CN201620054698.XU patent/CN205297570U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111766634A (en) * | 2020-06-19 | 2020-10-13 | 中国石油天然气股份有限公司 | Vibration reduction type gamma sensor assembly |
| CN111766634B (en) * | 2020-06-19 | 2023-01-24 | 中国石油天然气股份有限公司 | Vibration damping type gamma sensor assembly |
| CN113790797A (en) * | 2021-08-06 | 2021-12-14 | 中国科学院国家空间科学中心 | Glass tube detector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |