CN212003157U - High-temperature-resistant while-drilling azimuth gamma logging detector - Google Patents
High-temperature-resistant while-drilling azimuth gamma logging detector Download PDFInfo
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- CN212003157U CN212003157U CN202020478409.5U CN202020478409U CN212003157U CN 212003157 U CN212003157 U CN 212003157U CN 202020478409 U CN202020478409 U CN 202020478409U CN 212003157 U CN212003157 U CN 212003157U
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Abstract
The utility model discloses a high temperature resistant gamma logging detector along with drilling direction, which comprises a circuit module, an axial vibration damping component, a shell, a radial vibration damping component, a photoelectric converter, a light guide layer, a scintillator, a cover plate and a vibration damping rubber ring; the utility model provides a problem that traditional nature gamma logging detector can not the direct measurement position gamma, need not additionally increase gamma ray shield assembly in the instrument, and pass through the utility model discloses a structural design has effectively improved the detection efficiency of detector.
Description
The technical field is as follows.
The utility model relates to a petroleum and natural gas, coal bed gas, geological exploration drilling logging detector especially relate to a high temperature resistant gamma logging detector along with boring position.
Background of the invention is described.
With the development of the petroleum industry, the number of large-scale self-contained oil and gas fields is continuously reduced, and the exploration and development of the petroleum industry are shifted to those of difficult and marginal oil reservoirs, smaller-scale oil reservoirs, thinner oil reservoirs, fractured oil reservoirs and oil reservoirs with poor physical properties. In addition, horizontal wells and highly deviated wells are mostly drilled at sea, and directional logging application can enable the drill bit to drill in the most valuable zones of the oil and gas reservoir to the maximum extent, so that the method has important significance for efficiently developing complex oil and gas reservoirs. The gamma logging while drilling is one of the most common methods for geological guidance in directional well measurement, and the gamma logging while drilling instrument can effectively measure the radioactive ray intensity in different directions during the drilling process, provide directional geological parameters for drilling engineering, distinguish the lithology of undisturbed strata, and further provide stratum information for geological guidance.
The traditional natural gamma logging detector can respond to gamma rays within a 360-degree space range, and the azimuth gamma can be measured only by adding a gamma ray shielding device. The logging-while-drilling instrument produced in China mainly realizes measurement of the azimuth natural gamma in two ways: one is to add a gamma ray shielding device with a window outside a natural gamma detector to realize the measurement of the azimuth gamma, and because the shielding device occupies a certain installation space inside the instrument, the installation and fixation with the instrument and the gamma detector need to be considered, and the structure is more complex; the other method is to purchase and use foreign azimuth gamma logging detectors, but the foreign azimuth gamma logging detectors have low detection efficiency and high price, and the metal shell of the logging-while-drilling instrument has a certain shielding effect on gamma rays, so that the sensitivity of the azimuth gamma logging detectors arranged in the logging-while-drilling instrument on the gamma rays is greatly reduced, and the design requirements of the instrument are difficult to meet. Therefore, the application is limited, and the development of the related technology of the domestic high-temperature-resistant while-drilling azimuth gamma logging detector is still blank.
The utility model discloses a content.
The utility model provides a gamma logging detector along with boring position, which solves the defects of the detector and provides a high temperature resistant gamma logging detector along with boring position.
The utility model discloses a high temperature resistant gamma logging detector along with drilling direction, which comprises a circuit module, an axial vibration damping component, a shell, a radial vibration damping component, a photoelectric converter, a light guide layer, a scintillator, a cover plate and a vibration damping rubber ring; the circuit module is inserted into the e end of the shell and is fixedly connected with the e end of the shell through a screw; the shell is of an empty barrel structure, one end of the shell is connected with the circuit module, the other end of the shell is fixedly connected with the scintillator outer mounting piece through a screw, an axial vibration damping assembly, a radial vibration damping assembly, a photoelectric converter, a light guide layer and a scintillator are arranged in the shell, and a window is formed in the shell at a position corresponding to the scintillator; the axial vibration reduction assembly is arranged between the circuit module and the photoelectric converter and plays roles in vibration reduction and fixed installation; the light emitting surface c of the scintillator is connected with the light guide layer, and the mounting piece is wrapped outside the other end of the scintillator; the photoelectric converter is arranged between the axial vibration reduction assembly and the light guide layer; the light guide layer is arranged between the photoelectric converter and the scintillator, and two sides of the light guide layer are respectively coupled with the light emergent surface c of the scintillator and the photoelectric converter through optical couplants; the radial vibration reduction assembly is uniformly filled in gaps among the shell, the photoelectric converter and the scintillator; the cover plate is arranged at the window of the shell and positioned outside the shell, and the overall dimension of the cover plate is consistent with that of the window of the shell; the vibration damping rubber rings are arranged in the grooves a, b and d.
Preferably, the housing is one of a tungsten alloy and a lead alloy.
Preferably, the material of the axial damping assembly and the radial damping assembly is one of flexible damping material and rigid damping material.
Preferably, the photoelectric converter is a high-temperature photomultiplier tube.
Preferably, the light guide layer is a silicone rubber light guide.
Preferably, the scintillator is one of thallium-doped sodium iodide, thallium-doped cesium iodide, lanthanum bromide, bismuth germanate and sodium-doped cesium iodide.
Preferably, the cover plate is made of one of aluminum alloy, stainless steel and titanium alloy.
Preferably, the detector is rated to operate at a temperature of not less than 175 ℃.
The utility model has the advantages that: the problem of traditional nature gamma logging detector can not the direct measurement position gamma is solved, need not additionally increase gamma ray shield assembly in the instrument, and pass through the utility model discloses a structural design has effectively improved the detection efficiency of detector.
The present invention will be explained with reference to the accompanying drawings.
Description of the drawings.
Fig. 1 is an overall structure diagram of the present invention.
Fig. 2 is an exploded view of the present invention.
Fig. 3 is an exploded view of the housing structure of the present invention.
In the figure: the vibration-damping device comprises a circuit module 1, an axial vibration-damping component 2, a shell 3, a radial vibration-damping component 4, a photoelectric converter 5, a light guide layer 6, a scintillator 7, a cover plate 8, vibration-damping rubber ring mounting grooves a, b and d, a light-emitting surface c of the scintillator, an e end of the shell 3 and an f end of the shell 3.
Detailed description of the preferred embodiments.
The embodiments of the present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1-3, the utility model discloses a way module 1, axial damping subassembly 2, shell 3, radial damping subassembly 4, photoelectric converter 5, leaded light layer 6, scintillator 7, apron 8, scintillator installed part 9, damping rubber ring mounting groove an, b, d, the play plain noodles c of scintillator, the e end of shell 3, the f end of shell 3.
As shown in fig. 1-3, the circuit module 1 is fixed to the e-end of the housing 3 by screws; the f end of the shell 3 is fixedly connected with the scintillator mounting piece 9 through a screw; the axial vibration reduction component 2 is arranged between the circuit module 1 and the photoelectric converter 5 and plays roles in vibration reduction and fixed installation; the light emitting surface c of the scintillator is connected with the light guide layer 6; the photoelectric converter 5 is arranged in the shell 3 and between the axial vibration reduction assembly 2 and the light guide layer 6; the light guide layer 6 is arranged between the photoelectric converter 5 and the scintillator 7, and two sides of the light guide layer 6 are respectively coupled with the light emergent surface c of the scintillator and the photoelectric converter 5 through optical couplants; the radial vibration reduction assembly 4 is uniformly filled in the gap between the shell 3 and the photoelectric converter 5 and the scintillator 7; the damping rubber rings are arranged in the grooves a, b and d.
As shown in fig. 1-3, the cover plate 8 is mounted at a window of the housing 3.
As shown in fig. 1-3, the housing 3 is a hollow barrel-shaped structure, a window is formed at one end of the scintillator, the size of the window can be adjusted according to practical application, and the external dimension of the cover plate 8 is consistent with that of the window of the housing 3.
The shell is one of tungsten alloy and lead alloy.
The axial vibration reduction assembly and the radial vibration reduction assembly are made of one of flexible vibration reduction materials and rigid vibration reduction materials.
The photoelectric converter is a high-temperature photomultiplier.
The light guide layer is a silicon rubber light guide.
The scintillator is one of thallium-doped sodium iodide, thallium-doped cesium iodide, lanthanum bromide, bismuth germanate and sodium-doped cesium iodide.
The cover plate is made of one of aluminum alloy, stainless steel and titanium alloy.
The rated working temperature of the detector is not lower than 175 ℃.
Of course, other embodiments of the present invention are also possible, and the relevant technical personnel can make corresponding changes or modifications according to the present invention without departing from the essence of the present invention, but these changes and modifications should all belong to the protection scope of the claims of the present invention.
Claims (8)
1. A gamma logging detector with high temperature resistance along with drilling comprises a circuit module, an axial vibration reduction assembly, a shell, a radial vibration reduction assembly, a photoelectric converter, a light guide layer, a scintillator mounting piece, a cover plate and a vibration reduction rubber ring; the electronic device is characterized in that the circuit module is inserted into the e end of the shell and is fixedly connected with the e end of the shell through a screw; the shell is of an empty barrel structure, one end of the shell is connected with the circuit module, the other end of the shell is fixedly connected with the scintillator outer mounting piece through a screw, an axial vibration damping assembly, a radial vibration damping assembly, a photoelectric converter, a light guide layer and a scintillator are arranged in the shell, and a window is formed in the shell at a position corresponding to the scintillator; the axial vibration reduction assembly is arranged between the circuit module and the photoelectric converter and plays roles in vibration reduction and fixed installation; the light emitting surface c of the scintillator is connected with the light guide layer, and the mounting piece is wrapped outside the other end of the scintillator; the photoelectric converter is arranged between the axial vibration reduction assembly and the light guide layer; the light guide layer is arranged between the photoelectric converter and the scintillator, and two sides of the light guide layer are respectively coupled with the light emergent surface c of the scintillator and the photoelectric converter through optical couplants; the radial vibration reduction assembly is uniformly filled in gaps among the shell, the photoelectric converter and the scintillator; the cover plate is arranged at the window of the shell and positioned outside the shell, and the overall dimension of the cover plate is consistent with that of the window of the shell; and the vibration damping rubber rings are arranged in the vibration damping rubber ring grooves a, b and d.
2. The gamma logging while drilling detector of claim 1, wherein the housing is one of a tungsten alloy and a lead alloy.
3. The gamma logging while drilling detector of claim 1, wherein the material of the axial and radial vibration damping members is one of a flexible vibration damping material and a rigid vibration damping material.
4. The gamma logging while drilling detector of claim 1, wherein the photoelectric converter is a high temperature photomultiplier tube.
5. The gamma logging while drilling detector of claim 1, wherein the light guide layer is a silicone rubber light guide.
6. The gamma logging while drilling detector of claim 1, wherein the scintillator is one of thallium doped sodium iodide, cesium doped iodide, lanthanum bromide, bismuth germanate, and cesium doped sodium iodide.
7. The gamma logging-while-drilling detector of claim 1, wherein the cover plate is made of one of aluminum alloy, stainless steel and titanium alloy.
8. The high temperature resistant while-drilling azimuthal gamma logging detector of claim 1, wherein the detector is rated for operation at a temperature of no less than 175 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020478409.5U CN212003157U (en) | 2020-04-03 | 2020-04-03 | High-temperature-resistant while-drilling azimuth gamma logging detector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020478409.5U CN212003157U (en) | 2020-04-03 | 2020-04-03 | High-temperature-resistant while-drilling azimuth gamma logging detector |
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| CN212003157U true CN212003157U (en) | 2020-11-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112627808A (en) * | 2021-01-27 | 2021-04-09 | 国仪石油技术(无锡)有限公司 | Direction gamma modular structure of downhole instrument |
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2020
- 2020-04-03 CN CN202020478409.5U patent/CN212003157U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112627808A (en) * | 2021-01-27 | 2021-04-09 | 国仪石油技术(无锡)有限公司 | Direction gamma modular structure of downhole instrument |
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