CN111197482A - Optical fiber-electronic composite logging sensor - Google Patents
Optical fiber-electronic composite logging sensor Download PDFInfo
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- CN111197482A CN111197482A CN201811272665.2A CN201811272665A CN111197482A CN 111197482 A CN111197482 A CN 111197482A CN 201811272665 A CN201811272665 A CN 201811272665A CN 111197482 A CN111197482 A CN 111197482A
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- temperature
- optical fiber
- logging sensor
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- 239000002131 composite material Substances 0.000 title claims abstract description 19
- 230000003287 optical effect Effects 0.000 title claims abstract description 12
- 239000013307 optical fiber Substances 0.000 claims abstract description 10
- 230000005540 biological transmission Effects 0.000 claims abstract description 7
- 239000000523 sample Substances 0.000 claims description 54
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 5
- 239000010453 quartz Substances 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 230000001681 protective effect Effects 0.000 claims description 4
- 239000000835 fiber Substances 0.000 claims description 2
- 238000005259 measurement Methods 0.000 abstract description 6
- 210000002445 nipple Anatomy 0.000 abstract description 4
- 239000003292 glue Substances 0.000 abstract description 2
- 238000012544 monitoring process Methods 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000004005 microsphere Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000000700 radioactive tracer Substances 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
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- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Geophysics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The optical fiber-electronic composite logging sensor consists of a telemetering short section, a flowmeter, a temperature instrument, a pressure meter, a gamma instrument and a magnetic positioner, wherein the temperature instrument and the pressure instrument are optical fiber type sensors, and monitoring signals of the optical fiber-electronic composite logging sensor are directly transmitted to a well through optical fibers; the flow meter and the gamma instrument are electronic sensors, the magnetic positioner, the flow meter and the gamma instrument transmit measurement data to the telemetering nipple, the telemetering nipple packages and combines the measurement data, and transmits a data packet to a ground system through Manchester coding transmission, and finally, the underground data acquisition is completed. The pressure instrument is isolated from a measured medium and conducts pressure through the spring tube, and the optical fiber of the temperature instrument is connected to the two ends of the base of the temperature instrument in an arched shape through high-temperature glue, so that the measurement precision and accuracy of temperature and pressure are guaranteed.
Description
Technical Field
The invention provides an optical fiber-electronic composite sensor, and relates to the field of well logging.
Background
At present, most of injection media in oil field exploitation are water, steam and polymers, most of injection modes are general injection and layered injection allocation, a common logging technology is an isotope tracing logging technology, namely a three-parameter combination logging technology, three parameters including natural gamma, magnetic positioning and well temperature are mostly adopted for comprehensive analysis and explanation, and the method is generally popularized and applied in oil field development. However, with the increasing development strength and the continuous progress of the oil field, the formation pressure is continuously consumed, so that the geological condition is increasingly complex, the defects of the three-parameter combination logging technology are gradually exposed, such as the contamination and the leakage of the isotope microspheres, the suction capacity of each layer is difficult to determine under the condition of a large pore passage, and the like.
At present, when the five-parameter combination logging technology is carried out in China, the electronic sensor has the characteristics of high measurement precision, visual display method and reliable data acquisition, and is one of the most widely applied underground measuring instruments at present. The electronic sensor is usually assembled by electronic components, a circuit board has relatively large size, short service life, easy damage and easy interference from the outside, the depth of the sensor when the sensor is placed into an oil-gas well is limited, and the sensor can work at a lower temperature for a long time; the electronic sensor is active electrified equipment, and has potential safety hazard of electric ignition in underground flammable and explosive environments.
Disclosure of Invention
Aiming at the problems, the invention provides an optical fiber-electronic composite logging sensor, which adopts the technical scheme that:
an optical fiber-electronic composite logging sensor is formed by connecting an isotope releaser, an ultrasonic flowmeter, a natural gamma instrument, a temperature measuring instrument, a pressure gauge, a magnetic locator and a remote transmission short section, wherein the remote transmission short section is electrically connected with the isotope releaser, the ultrasonic flowmeter, the natural gamma instrument, the temperature measuring instrument, the pressure gauge and the magnetic locator.
Further, the device also comprises at least one centralizer.
Further, the temperature measuring instrument and the pressure gauge are connected in series through an optical fiber.
Further, the thermometer and the pressure gauge are optical fiber sensors based on quartz materials.
Furthermore, the pressure gauge is formed by connecting a pressure probe base and a pressure inlet cylinder, the pressure inlet cylinder is provided with a pressure inlet, the left end of the pressure probe base is provided with a first small hole, the right end of the pressure probe base is provided with a second hole, the pressure probe is inserted into the second hole, and the first small hole is communicated with the second hole.
Furthermore, the pressure gauge further comprises a spring tube, and one end of the spring tube is inserted into the first small hole.
Further, the thermodetector comprises a temperature probe protection barrel connected with a pressure probe base, and the temperature probe base is connected with the pressure probe; the temperature probe is fixed on the temperature probe base in an arc shape.
Furthermore, a metal seal is arranged between the spring tube and the first small hole.
Furthermore, the temperature probe protection cylinder is also provided with a protection steel pipe, and the protection steel pipe is inserted from one end of the temperature probe protection cylinder.
Furthermore, a double-cone clamping sleeve and a compression screw are arranged between the protection steel pipe and the temperature probe protection cylinder.
The invention has the beneficial effects that:
the optical fiber sensor based on quartz materials is used as a temperature and pressure instrument, has the advantages of long service life, high temperature resistance, corrosion resistance, small size, long transmission distance, no electricity, severe environment resistance, electromagnetic interference resistance and the like, overcomes the defects that an electronic sensor is not high temperature resistant, corrosion resistant and easy to drift, and is very suitable for monitoring and applying to oil and gas wells.
Drawings
FIG. 1 is a schematic diagram of a fiber-optic-electronic composite logging sensor configuration.
Fig. 2 is a schematic structural diagram of the fiber temperature and pressure instrument.
In the figure: 1-pressure inlet cylinder, 2-spring tube, 3-metal edge seal, 4-O-shaped ring seal, 5-pressure probe base, 6-temperature probe base, 7-temperature probe protection cylinder, 8-double-cone clamping sleeve, 9-compression screw, 10-protection steel tube, 11-temperature probe, 12-pressure probe, 13-isotope releaser, 14-flowmeter, 15-gamma instrument, 16-thermodetector, 17-pressure gauge, 18-magnetic locator, 19-telemetry nipple and 20-centralizer.
Detailed Description
In the first embodiment, the optical fiber-electronic composite logging sensor is formed by connecting an isotope releaser 13, an ultrasonic flowmeter 14, a gamma instrument 15, a thermodetector 16, a pressure gauge 17, a magnetic locator 18 and a telemetry short section 19, wherein the telemetry short section 19 is electrically connected with the isotope releaser 13, the flowmeter 14, the natural gamma instrument 15, the thermodetector 16, the pressure gauge 17 and the magnetic locator 18; as shown in fig. 1, the telemetry sub 19 packages and combines the measurement data of the magnetic locator 18, the flowmeter 14 and the gamma instrument 15, and transmits the data package to the surface system through manchester encoding transmission. The magnetic locator 18 carries out external sealing through the thread and O type circle combination sealed mode, and when it worked in the tubular column in the pit, induced electric potential produced the signal of telecommunication, changed into frequency signal, and the singlechip timing counter that gets into telemetering measurement nipple joint 19 counts, fixes a position tubular column collar in the pit and instrument. The gamma instrument 15 and the flow meter 14 are sealed externally through a thread and O-shaped ring combined sealing mode, the gamma instrument 15 measures the intensity of formation gamma rays, and the flow meter 14 calculates the fluid flow rate through the propagation speed difference of ultrasonic waves. The isotope releaser 13 is also externally sealed in a screw thread and O-shaped ring combined sealing mode and used for releasing the underground isotope tracer; the centralizer 20 is connected with other parts through threads, so that the instrument string is ensured to be centered and measured; the flow meter 14 is an ultrasonic flow meter and the gamma meter 15 is a natural gamma meter.
In the second embodiment, a schematic structural diagram of the optical fiber temperature and pressure instrument is shown in fig. 2, in which a pressure inlet cylinder 1, a spring tube 2, a metal deformation seal 3, an O-ring seal 4, a pressure probe base 5, a temperature probe base 6, a temperature probe protection cylinder 7, a double-cone ferrule 8, a compression screw 9, a protection steel tube 10, a temperature probe 11, a pressure probe 12, and the like are included.
The pressure inlet cylinder 1 is provided with a pressure inlet for the measured medium to enter and exit, is connected with the pressure probe base 5 through threaded connection, and realizes sealing through a metal deformation seal 3 and an O-shaped ring seal 4; the left end of the pressure probe base 5 is provided with a first small hole which is in transition fit with the outer diameter of the spring tube 2, the spring tube 2 is inserted into the first small hole at the left end of the pressure probe base 5, and fixed sealing is realized through argon arc welding or laser welding; a second hole is formed in the right end of the pressure probe base 5, and the pressure probe 12 is inserted into the second hole in the right end of the pressure probe base 5 and sealed through metal deformation; the temperature probe 11 is connected with the two ends of the temperature probe 6 by high-temperature glue to form an arch, and the temperature probe base 6 is connected with the pressure probe 12 by thread connection; the temperature probe protection cylinder 7 is connected with the pressure probe base 5 through threaded connection, sealing is achieved through the O-shaped ring seal 4, and meanwhile the temperature probe is protected.
Protective media with small corrosion to quartz are filled in the spring tube 2 and the hole of the pressure probe base 5, so that the pressure probe 12 is directly contacted with the measured media, and pressure conduction can be carried out; the temperature probe 11 and the pressure probe 12 are optical fiber sensors based on quartz materials, are connected in series, realize signal transmission through optical fibers, and realize protection through a protective steel tube 10; the compression screw 9 is in threaded connection with the temperature probe protection cylinder 7, and the protection steel pipe 10 is rotated through the compression screw 9 to compress the double-cone clamping sleeve 8, so that the double-cone clamping sleeve 8 is subjected to metal deformation, and the protection steel pipe is fixedly sealed.
Claims (10)
1. An optical fiber-electronic composite logging sensor is characterized by being formed by connecting an isotope releaser, an ultrasonic flowmeter, a natural gamma instrument, a temperature measuring instrument, a pressure gauge, a magnetic locator and a remote transmission short section, wherein the remote transmission short section is electrically connected with the isotope releaser, the ultrasonic flowmeter, the natural gamma instrument, the temperature measuring instrument, the pressure gauge and the magnetic locator.
2. The fiber-optic-electronic composite logging sensor of claim 1, further comprising at least one centralizer.
3. The fiber-electronic composite logging sensor of claim 1, wherein the temperature measuring device and the pressure gauge are connected in series by the optical fiber.
4. The fiber-electronic composite logging sensor of claim 1, wherein the thermometer and the pressure gauge are fiber sensors based on quartz material.
5. The optical fiber-electronic composite well logging sensor according to any one of claims 1-4, wherein the pressure gauge is composed of a pressure probe base and a pressure inlet cylinder, the pressure inlet cylinder is provided with a pressure inlet, the left end of the pressure probe base is provided with a first small hole, the right end of the pressure probe base is provided with a second hole, the pressure probe is inserted into the second hole, and the first small hole is communicated with the second hole.
6. The fiber-electronic composite logging sensor of claim 5, wherein the pressure gauge further comprises a spring tube, one end of the spring tube being inserted into the first small hole.
7. An optical fiber-electronic composite logging sensor as claimed in any one of claims 1 to 4, wherein said temperature measuring device comprises a temperature probe protection cartridge coupled to a pressure probe base, the temperature probe base being coupled to the pressure probe; the temperature probe is fixed on the temperature probe base in an arc shape.
8. The fiber-electronic composite logging sensor of claim 6, wherein a metal seal is disposed between the spring tube and the first aperture.
9. The optical fiber-electronic composite well logging sensor according to claim 7, wherein the temperature probe protection cylinder is further provided with a protection steel pipe, and the protection steel pipe is inserted from one end of the temperature probe protection cylinder.
10. The fiber-electronic composite logging sensor of claim 9, wherein a double-cone ferrule and a compression screw are arranged between the protective steel tube and the temperature probe protective cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811272665.2A CN111197482A (en) | 2018-10-30 | 2018-10-30 | Optical fiber-electronic composite logging sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811272665.2A CN111197482A (en) | 2018-10-30 | 2018-10-30 | Optical fiber-electronic composite logging sensor |
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| CN111197482A true CN111197482A (en) | 2020-05-26 |
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| CN201811272665.2A Pending CN111197482A (en) | 2018-10-30 | 2018-10-30 | Optical fiber-electronic composite logging sensor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115263280A (en) * | 2021-04-29 | 2022-11-01 | 中国石油天然气集团有限公司 | Underground leakage finding system, leakage finding method and leakage finding data acquisition device |
| CN115949389A (en) * | 2023-01-05 | 2023-04-11 | 中海油田服务股份有限公司 | Photoelectric composite test system and test method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115263280A (en) * | 2021-04-29 | 2022-11-01 | 中国石油天然气集团有限公司 | Underground leakage finding system, leakage finding method and leakage finding data acquisition device |
| CN115949389A (en) * | 2023-01-05 | 2023-04-11 | 中海油田服务股份有限公司 | Photoelectric composite test system and test method |
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| PB01 | Publication | ||
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| TA01 | Transfer of patent application right |
Effective date of registration: 20220217 Address after: 100029 Chaoyang District, Beijing Hui Xin Street six, Twelfth level. Applicant after: SINOPEC OILFIELD SERVICE Corp. Applicant after: SINOPEC SHENGLI PETROLEUM ENGINEERING Co.,Ltd. Applicant after: Sinopec Jingwei Co.,Ltd. Applicant after: Shengli logging company of Sinopec Jingwei Co.,Ltd. Address before: 100101 Beichen West Road, Chaoyang District, Beijing 8 Beichen world center, block A 703. Applicant before: SINOPEC OILFIELD SERVICE Corp. Applicant before: SINOPEC SHENGLI PETROLEUM ENGINEERING Co.,Ltd. Applicant before: WELL LOGGING COMPANY, SINOPEC SHENGLI PETROLEUM ENGINEERING Co.,Ltd. |
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Effective date of registration: 20221130 Address after: 100728 No. 22 North Main Street, Chaoyang District, Beijing, Chaoyangmen Applicant after: SINOPEC Group Applicant after: SINOPEC OILFIELD SERVICE Corp. Applicant after: SINOPEC SHENGLI PETROLEUM ENGINEERING Co.,Ltd. Applicant after: Sinopec Jingwei Co.,Ltd. Applicant after: Shengli logging company of Sinopec Jingwei Co.,Ltd. Address before: 100029 Chaoyang District, Beijing Hui Xin Street six, Twelfth level. Applicant before: SINOPEC OILFIELD SERVICE Corp. Applicant before: SINOPEC SHENGLI PETROLEUM ENGINEERING Co.,Ltd. Applicant before: Sinopec Jingwei Co.,Ltd. Applicant before: Shengli logging company of Sinopec Jingwei Co.,Ltd. |
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Application publication date: 20200526 |
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| WD01 | Invention patent application deemed withdrawn after publication |