CN211974960U - Easily-processed and realized electromagnetic wave resistivity instrument while drilling - Google Patents
Easily-processed and realized electromagnetic wave resistivity instrument while drilling Download PDFInfo
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- CN211974960U CN211974960U CN201922327488.XU CN201922327488U CN211974960U CN 211974960 U CN211974960 U CN 211974960U CN 201922327488 U CN201922327488 U CN 201922327488U CN 211974960 U CN211974960 U CN 211974960U
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- flow channel
- framework
- drill collar
- channel conversion
- electromagnetic wave
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- 238000005553 drilling Methods 0.000 title claims description 18
- 238000006243 chemical reaction Methods 0.000 claims description 61
- 239000002002 slurry Substances 0.000 claims description 28
- 238000007789 sealing Methods 0.000 claims description 21
- 210000002445 nipple Anatomy 0.000 claims description 12
- -1 polytetrafluoroethylene Polymers 0.000 claims description 11
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 11
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 11
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 6
- 239000004696 Poly ether ether ketone Substances 0.000 claims description 6
- JUPQTSLXMOCDHR-UHFFFAOYSA-N benzene-1,4-diol;bis(4-fluorophenyl)methanone Chemical compound OC1=CC=C(O)C=C1.C1=CC(F)=CC=C1C(=O)C1=CC=C(F)C=C1 JUPQTSLXMOCDHR-UHFFFAOYSA-N 0.000 claims description 6
- 239000003822 epoxy resin Substances 0.000 claims description 6
- 229920000647 polyepoxide Polymers 0.000 claims description 6
- 229920002530 polyetherether ketone Polymers 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000012546 transfer Methods 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 8
- 238000013461 design Methods 0.000 abstract description 5
- 238000012545 processing Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 238000002955 isolation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
The utility model discloses an easily process along with boring electromagnetic wave resistivity appearance that realizes, including upper portion switching drill collar, skeleton and lower part switching drill collar, wherein open the square groove of placing the circuit board on the skeleton excircle and place antenna coil's annular, the wear-resisting area has been welded to the upper berth of skeleton excircle, and the wear-resisting area is in the clearance of a plurality of square grooves on the skeleton excircle for rectangular shape. The utility model discloses an easily process along with boring electromagnetic wave resistivity appearance that realizes adopts the grooved mode of casing based on the consideration that reduces circuit design pressure, and corresponding structure has been designed according to the processing means that can adopt at home to all the other parts to the effect that reaches and foreign advanced instrument is the same.
Description
Technical Field
The utility model belongs to the resistivity appearance field, in particular to easily process electromagnetic wave resistivity appearance along with boring that realizes in this field.
Background
Most of the existing mature while-drilling electromagnetic wave resistivity structures are separated from circuits, the antennas are arranged on a resistivity shell while drilling, the circuits are arranged in a central hole in the shell, the structure realizes that the connection between the antennas and the circuits is complex, the circuits are all arranged in a pressure-bearing cylinder, electromagnetic shielding is not facilitated, and the novel resistivity shell while drilling disclosed by the model of Van Save et al is in the form; the latest electromagnetic wave resistivity instrument of the foreign beckhos company is provided with a groove on a resistivity shell while drilling, a circuit is placed in the groove, and all circuit grooves are communicated with each other through a long and thin deep hole, so that the processing of the long and thin deep hole in the structure is a difficult problem, how to realize the structure abroad is not known at present, the structure does not apply for a patent, further technical details cannot be known, namely the problem existing in the prior art is that: the structure which is easy to process and realize has high requirements on circuit design, and the structure which has low requirements on circuit design is difficult to process and realize at home.
Disclosure of Invention
The utility model aims to solve the technical problem that an easily processing realization is provided along with boring electromagnetic wave resistivity appearance.
The utility model adopts the following technical scheme:
the improvement of an easy-to-machine electromagnetic wave resistivity instrument while drilling is that: the antenna comprises an upper switching drill collar, a framework and a lower switching drill collar, wherein a square groove for placing a circuit board and a ring groove for placing an antenna coil are formed in the outer circle of the framework; the upper part and the lower part of the framework are provided with slurry flow channel conversion heads which introduce the wires in the wiring holes on the framework wall into the MWD system in the right middle of the water hole, the joint of the slurry flow channel conversion heads is provided with a pressure-bearing connector, the upper slurry flow channel conversion head is connected with a seven-core slip ring connector, the seven-core slip ring connector is connected with a telescopic short section of the MWD system, the lower slurry flow channel conversion head is connected with a ten-core aviation plug, the ten-core aviation plug is connected with an azimuth gamma short section at the lower part, the upper slurry flow channel conversion head is fixed with the upper part of the framework through an upper transfer drill collar, and the lower slurry flow channel conversion head is fixed with the lower part of the framework through a lower transfer drill collar; in addition, the pressure sensor is arranged at the lower part, and a check ring for hole is arranged in a corresponding mounting hole of the pressure sensor.
Furthermore, a thread protecting head, a thread protecting cap, a rubber protecting cap and a protecting cap are arranged in a non-working state.
Furthermore, the upper slurry flow channel conversion head comprises a conversion nipple protruding outwards, a conversion drill collar is sleeved on the conversion nipple, the conversion nipple is connected with the conversion drill collar through an adjusting ring, the tail of the conversion nipple is connected with the slurry flow channel conversion head, the tail of the slurry flow channel conversion head is connected with a framework, the conversion nipple is connected with the slurry flow channel conversion head through a threaded sleeve, and the threaded sleeve is fixed on the slurry flow channel conversion head through a large nut.
Furthermore, the conversion short section comprises a seven-core slip ring connector assembly, the seven-core slip ring connector assembly is fixed in an inner hole at the end part of the main body through a key and a steel wire retainer ring, a lead at the tail part of the seven-core slip ring connector assembly is connected with the pressure-bearing connector, a polytetrafluoroethylene thin pipe is sleeved before a lead of the seven-core slip ring connector assembly is welded to the pressure-bearing connector, the polytetrafluoroethylene thin pipe is sleeved to the tail part of the pressure-bearing connector after welding is finished, then normal-temperature curing epoxy resin is filled in the polytetrafluoroethylene thin pipe, and the polytetrafluoroethylene thin pipe is cut and removed after the epoxy resin is cured; the pressure-bearing connector is fixed on the main body through a special-shaped piece and a screw, the upper part and the lower part of the main body are sealing surfaces, and all sealing links are reinforced through PEEK check rings.
Furthermore, a main part of the slurry flow channel conversion head is processed by nickel-based alloy 925, a bridge joint of the slurry flow channel conversion head is used for wiring connection between the main part and a framework drill collar, an adjusting ring of the bridge joint is used for error compensation between the main part and the instrument framework drill collar, keys are arranged on the main part, three sealing surfaces are arranged on the main part, and all sealing links are reinforced by PEEK check rings.
Furthermore, an inclined special-shaped hole is arranged in the slurry flow channel conversion head, one end of the special-shaped hole is connected with the slip ring, the other end of the special-shaped hole is communicated with the ultra-deep hole in the drilling arm through a bridge plug, and in addition, two ends of the special-shaped hole are respectively sealed by a large sealing ring.
The utility model has the advantages that:
the utility model discloses an easily process along with boring electromagnetic wave resistivity appearance that realizes adopts the grooved mode of casing based on the consideration that reduces circuit design pressure, and corresponding structure has been designed according to the processing means that can adopt at home to all the other parts to the effect that reaches and foreign advanced instrument is the same. There are three advantages over existing structures: firstly, the structure is easy to process and realize; secondly, the structure has excellent electromagnetic isolation performance and is easier to design and realize a circuit; third, the structure is easy to repair. The special-shaped hole is sealed by adopting a bridge plug and two large sealing rings at two ends to form a sealing space, so that slurry is prevented from entering the special-shaped hole, and the slurry is separated from a circuit.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the apparatus of the present invention;
FIG. 2 is a schematic structural view of the upper slurry channel switching head of the apparatus of the present invention;
fig. 3a is a perspective view of a conversion nipple in the instrument of the present invention;
fig. 3b is a schematic structural diagram of a conversion nipple in the instrument of the present invention;
FIG. 4a is a perspective view of a slurry channel adapter of the apparatus of the present invention;
fig. 4b is a schematic structural diagram of the slurry channel switching head of the apparatus of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In embodiment 1, this embodiment discloses an electromagnetic wave resistivity instrument while drilling that is easy to process and implement, which mainly utilizes the influence of a medium on the propagation of electromagnetic waves to determine the property of the medium, the electromagnetic waves emitted from a transmitting antenna pass through a stratum to reach a receiving antenna in the middle, and because the conductivity of the stratum is different, the phase difference and the amplitude difference occur when the electromagnetic waves reach the receiving antenna, and because the phase difference and the amplitude difference occur in different stratums, the stratum can be determined.
The overall structure of the instrument is shown in fig. 1, the instrument mainly comprises an upper adapter drill collar 201, a framework 202 and a lower adapter drill collar 206, wherein the framework 202 is a main part, a square groove 212 for placing a circuit board and a ring groove 204 for placing an antenna coil are formed in the outer circle of the framework 202, in order to protect the square groove 212 and the ring groove 204, a wear-resistant belt 203 is paved and welded on the outer circle of the framework 202, and the wear-resistant belt 203 is in a strip shape and is positioned in gaps of the square grooves 212 on the outer circle of the framework 202; the upper part and the lower part of the framework 202 are provided with mud flow channel conversion heads 207 and 207, and the main function of the mud flow channel conversion heads 207 and 207 is to introduce a lead in a wiring hole 211 on the wall of the framework 202 into an MWD instrument positioned in the middle of a water hole and simultaneously can not block the flow area of the water hole, because the assembly and maintenance of a resistivity instrument while drilling are very complicated, a pressure-bearing connector 209 is arranged at the interface of the mud flow channel conversion head 207, a seven-core slip ring connector 208 is connected with the upper mud flow channel conversion head 207 and is connected with a telescopic short section of an MWD system, a ten-core aviation plug 210 is connected with the lower mud flow channel conversion head 207 and is connected with an azimuth gamma short section at the lower part in actual work, the upper mud flow channel conversion head 207 is fixed with the upper part of the framework 202 through an upper adapter drill collar 201, and the lower mud flow channel conversion head 207 is fixed; the lower part of the instrument is provided with a pressure sensor 205 which realizes fixation and sealing through the thread and the sealing surface of the pressure sensor, and a check ring for a hole is arranged in the corresponding mounting hole; the instrument is provided with a thread protecting head 214, a thread protecting cap 213, a rubber protecting cap 215 and a protecting cap 216 in a non-working state, all of which cannot bear pressure, and a pressure-bearing joint needs to be replaced for a pressure-bearing joint in a pressure test.
The structure of the upper mud flow channel conversion head is shown in fig. 2 (the structures of the upper and lower mud flow channel conversion heads are the same except for the difference of the electrical connectors, and therefore are not separately illustrated), 301 is a conversion pup joint, 302 is a conversion drill collar, 303 is a mud flow channel conversion head, 304 is a framework, 305 is a threaded sleeve for connecting 301 and 303,306 is a large nut for fixing the threaded sleeve 305 on the mud flow channel conversion head 303, and 307 is an adjusting ring.
The structure of the conversion short joint 301 is shown in fig. 3a and 3b, 401 is a seven-core slip ring connector assembly, the seven-core slip ring connector assembly is fixed in an inner hole at the end part of a main body 402 through a key 404 and a steel wire retainer ring, a lead wire at the tail part of 401 is connected with a pressure-bearing connector 410, a polytetrafluoroethylene thin pipe is sleeved before a lead wire of 401 is welded to 410, after welding is finished, the polytetrafluoroethylene thin pipe is sleeved to the tail part of 410, then normal-temperature curing epoxy resin 406 is filled in the polytetrafluoroethylene thin pipe, and after the epoxy resin is cured, the polytetrafluoroethylene thin pipe is cut and then; the pressure-bearing connector 410 is fixed on the main body 402 through a special-shaped piece 405 and a screw 407, sealing surfaces are arranged on the upper side and the lower side of the main body 402, and all sealing links are reinforced through PEEK retaining rings 403. The central conducting wire in the wire-passing hole enters a telescopic short joint of the MWD instrument positioned in the middle of the water hole through a cavity in the switching short joint and a seven-core slip ring connector assembly.
Fig. 4a and 4b illustrate the structure of the mud flow channel conversion head 303 in fig. 2 in detail, where 501 is a main part to be processed by nickel-based alloy 925, 505 is a bridge joint for wiring connection between 501 and an instrument framework drill collar, 503 is an adjusting ring for error compensation between 501 and the instrument framework drill collar, 507 is a key for positioning, guiding and rotation prevention, and 501 has three sealing surfaces 502, 504, and 506, and all sealing links are reinforced by PEEK retaining rings.
The slurry flow passage conversion head is internally provided with an inclined special-shaped hole, one end of the special-shaped hole is connected with the slip ring, the other end of the special-shaped hole is communicated with the ultra-deep hole in the drilling arm through a five-core bridge plug, and in addition, two ends of the special-shaped hole are respectively sealed by a large sealing ring. The special-shaped hole is sealed by adopting a five-core bridge plug and two large sealing rings at two ends to form a sealing space, so that slurry is prevented from entering the special-shaped hole and being separated from a circuit.
Claims (6)
1. An easy-to-machine electromagnetic wave resistivity instrument while drilling is characterized in that: the antenna comprises an upper switching drill collar, a framework and a lower switching drill collar, wherein a square groove for placing a circuit board and a ring groove for placing an antenna coil are formed in the outer circle of the framework; the upper part and the lower part of the framework are provided with slurry flow channel conversion heads which introduce the wires in the wiring holes on the framework wall into the MWD system in the right middle of the water hole, the joint of the slurry flow channel conversion heads is provided with a pressure-bearing connector, the upper slurry flow channel conversion head is connected with a seven-core slip ring connector, the seven-core slip ring connector is connected with a telescopic short section of the MWD system, the lower slurry flow channel conversion head is connected with a ten-core aviation plug, the ten-core aviation plug is connected with an azimuth gamma short section at the lower part, the upper slurry flow channel conversion head is fixed with the upper part of the framework through an upper transfer drill collar, and the lower slurry flow channel conversion head is fixed with the lower part of the framework through a lower transfer drill collar; in addition, the pressure sensor is arranged at the lower part, and a check ring for hole is arranged in a corresponding mounting hole of the pressure sensor.
2. The electromagnetic wave resistivity while drilling instrument easy to machine and realize of claim 1, wherein: the thread protecting head, the thread protecting cap, the rubber protecting cap and the protecting cap are arranged in a non-working state.
3. The electromagnetic wave resistivity while drilling instrument easy to machine and realize of claim 1, wherein: the upper mud flow channel conversion head comprises a convex conversion nipple, a conversion drill collar is sleeved on the conversion nipple, the conversion nipple is connected with the conversion drill collar through an adjusting ring, the tail of the conversion nipple is connected with the mud flow channel conversion head, the tail of the mud flow channel conversion head is connected with a framework, the conversion nipple is connected with the mud flow channel conversion head through a threaded sleeve, and the threaded sleeve is fixed on the mud flow channel conversion head through a large nut.
4. The electromagnetic wave resistivity while drilling instrument easy to machine and realize of claim 3, wherein: the conversion short section comprises a seven-core slip ring connector assembly, the seven-core slip ring connector assembly is fixed in an inner hole at the end part of the main body through a key and a steel wire retainer ring, a lead at the tail part of the seven-core slip ring connector assembly is connected with a pressure-bearing connector, a polytetrafluoroethylene thin pipe is sleeved before a lead of the seven-core slip ring connector assembly is welded to the pressure-bearing connector, after welding is finished, the polytetrafluoroethylene thin pipe is sleeved to the tail part of the pressure-bearing connector and then filled with normal-temperature curing epoxy resin, and after the epoxy resin is cured, the polytetrafluoroethylene thin pipe is cut and then removed; the pressure-bearing connector is fixed on the main body through a special-shaped piece and a screw, the upper part and the lower part of the main body are sealing surfaces, and all sealing links are reinforced through PEEK check rings.
5. The electromagnetic wave resistivity while drilling instrument easy to machine and realize of claim 3, wherein: the main part of the mud flow channel conversion head is processed by nickel-based alloy 925, the bridge joint is used for wiring connection between the main part and the framework drill collar, the adjusting ring is used for error compensation between the main part and the instrument framework drill collar, the main part is provided with keys, three sealing surfaces are arranged on the main part, and all sealing links are reinforced by PEEK check rings.
6. The electromagnetic wave resistivity while drilling instrument easy to machine and realize of claim 5, wherein: the slurry flow passage conversion head is internally provided with an inclined special-shaped hole, one end of the special-shaped hole is connected with the slip ring, the other end of the special-shaped hole is communicated with the ultra-deep hole in the drilling arm through a bridge plug, and in addition, two ends of the special-shaped hole are respectively sealed by a large sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922327488.XU CN211974960U (en) | 2019-12-22 | 2019-12-22 | Easily-processed and realized electromagnetic wave resistivity instrument while drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922327488.XU CN211974960U (en) | 2019-12-22 | 2019-12-22 | Easily-processed and realized electromagnetic wave resistivity instrument while drilling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211974960U true CN211974960U (en) | 2020-11-20 |
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ID=73379101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922327488.XU Expired - Fee Related CN211974960U (en) | 2019-12-22 | 2019-12-22 | Easily-processed and realized electromagnetic wave resistivity instrument while drilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211974960U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111236929A (en) * | 2019-12-22 | 2020-06-05 | 中国电波传播研究所（中国电子科技集团公司第二十二研究所） | Easily-processed and realized electromagnetic wave resistivity instrument while drilling |
| CN116950577A (en) * | 2023-09-19 | 2023-10-27 | 中海油田服务股份有限公司 | Conversion nipple of logging while drilling instrument |
-
2019
- 2019-12-22 CN CN201922327488.XU patent/CN211974960U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111236929A (en) * | 2019-12-22 | 2020-06-05 | 中国电波传播研究所（中国电子科技集团公司第二十二研究所） | Easily-processed and realized electromagnetic wave resistivity instrument while drilling |
| CN116950577A (en) * | 2023-09-19 | 2023-10-27 | 中海油田服务股份有限公司 | Conversion nipple of logging while drilling instrument |
| CN116950577B (en) * | 2023-09-19 | 2023-11-21 | 中海油田服务股份有限公司 | Conversion nipple of logging while drilling instrument |
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| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201120 |
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| CF01 | Termination of patent right due to non-payment of annual fee |