CN106014377B - Small-diameter pump-out and cable dual-function natural gamma energy spectrum logging instrument - Google Patents
Small-diameter pump-out and cable dual-function natural gamma energy spectrum logging instrument Download PDFInfo
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- CN106014377B CN106014377B CN201610525217.3A CN201610525217A CN106014377B CN 106014377 B CN106014377 B CN 106014377B CN 201610525217 A CN201610525217 A CN 201610525217A CN 106014377 B CN106014377 B CN 106014377B
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- 238000004891 communication Methods 0.000 claims abstract description 35
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- 238000012545 processing Methods 0.000 claims description 21
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- 230000000087 stabilizing effect Effects 0.000 claims description 13
- 229920001971 elastomer Polymers 0.000 claims description 11
- 239000006096 absorbing agent Substances 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 7
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- 229910052695 Americium Inorganic materials 0.000 claims description 6
- LXQXZNRPTYVCNG-UHFFFAOYSA-N americium atom Chemical compound [Am] LXQXZNRPTYVCNG-UHFFFAOYSA-N 0.000 claims description 6
- 210000002445 nipple Anatomy 0.000 claims description 6
- 238000013016 damping Methods 0.000 claims description 4
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- 238000007906 compression Methods 0.000 claims description 3
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- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 3
- 229920002554 vinyl polymer Polymers 0.000 claims description 3
- 238000010521 absorption reaction Methods 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 claims 1
- 239000003208 petroleum Substances 0.000 abstract description 3
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- 230000009467 reduction Effects 0.000 description 6
- 238000001514 detection method Methods 0.000 description 3
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- 229910052770 Uranium Inorganic materials 0.000 description 2
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- JFALSRSLKYAFGM-UHFFFAOYSA-N uranium(0) Chemical compound [U] JFALSRSLKYAFGM-UHFFFAOYSA-N 0.000 description 2
- ZSLUVFAKFWKJRC-IGMARMGPSA-N 232Th Chemical compound [232Th] ZSLUVFAKFWKJRC-IGMARMGPSA-N 0.000 description 1
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- 230000002035 prolonged effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
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- 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
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- 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
- E21B47/01—Devices for supporting measuring instruments on drill bits, pipes, rods or wirelines; Protecting measuring instruments in boreholes against heat, shock, pressure or the like
- E21B47/017—Protecting measuring instruments
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- 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
- E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
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- 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
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geophysics (AREA)
- Remote Sensing (AREA)
- Measurement Of Radiation (AREA)
Abstract
The invention discloses a small-diameter pump-out and cable dual-function natural gamma energy spectrum logging instrument, which belongs to the technical field of radioactive petroleum logging instruments and comprises the following components: the device comprises a protective cap, a socket, a probe, an outer shell, two circuit frames, a plug, a protective plug and two groups of electric control components; the protective cap and the protective plug are respectively positioned at two ends of the outer shell; the probe is sleeved in the outer shell, two circuit frames are respectively arranged at two ends of the probe, two groups of electric control components are respectively arranged on the two circuit frames, one ends of the two groups of electric control components are respectively and electrically connected with the probe, and the other ends of the two groups of electric control components are respectively connected with the socket and the plug; the communication board on the electric control assembly is provided with an Ethernet communication interface and a CAN communication interface which are respectively used for signal transmission in a cable working mode and a pump-out working mode; the tool is capable of logging both in wireline mode and in pump out mode in complex situations.
Description
Technical Field
The invention belongs to the technical field of radioactive petroleum logging instruments, and particularly relates to a small-diameter pump-out and cable dual-function natural gamma energy spectrum logging instrument.
Background
The natural gamma energy spectrum logging instrument provides total gamma counting rate and contents of three natural radioactive elements of uranium, thorium and potassium in stratum, and the instrument records full spectrum data.
With the continuous deep development of oil and gas field exploration, horizontal wells, highly-inclined wells and various complex wells are continuously appeared, and how to improve the construction time of the horizontal wells, the highly-inclined wells and the various complex wells and ensure the construction safety is a great technical problem of logging construction. Conventional cable logging can not meet the logging requirement of complex wells, the logging construction time efficiency and the construction safety are seriously influenced, and the pumped storage type logging can meet the logging construction time efficiency and the construction quality requirements of horizontal wells, high-inclination wells and the like.
The pump-out storage type logging has unique advantages, and compared with early drill rod conveying, the pump-out storage type logging is simple in operation. Compared with logging while drilling, the method has lower cost. Compared with the logging through a drill rod, the measuring effect is better; however, the existing pump-out storage type well logging has poor vibration isolation effect and is easy to damage a probe;
in conventional cable logging, the natural gamma-ray spectroscopy tool detector adopts a large crystal with the diameter of 2 inches, and has high detection efficiency. In pump-out storage well logging and wireline well logging of small wellbores, however, large crystals of 2 inches in diameter cannot be used due to wellbore limitations.
Disclosure of Invention
Therefore, the invention aims to provide the small-diameter pump-out and cable dual-function natural gamma energy spectrum logging instrument, which can log well in a cable mode and also log well in a pump-out mode under complex conditions, and solves the problems of conveying the logging instrument of a high-inclination well and a horizontal well and logging of small-diameter deep wells such as petroleum, uranium ores, salt ores and the like.
The invention is realized by the following technical scheme:
a small diameter pump-out and cable dual function natural gamma spectroscopy tool comprising: the device comprises a protective cap, a socket, a probe, an outer shell, two circuit frames, a plug, a protective plug and two groups of electric control components;
the protective cap and the protective plug are respectively positioned at two ends of the outer shell; the probe is sleeved in the outer shell, two circuit frames are respectively arranged at two ends of the probe, two groups of electric control components are respectively arranged on the two circuit frames, one ends of the two groups of electric control components are respectively and electrically connected with the probe, and the other ends of the two groups of electric control components are respectively connected with the socket and the plug;
the communication board on the electric control assembly is provided with an Ethernet communication interface and a CAN communication interface which are respectively used for signal transmission in a cable working mode and a pump-out working mode;
the probe includes: the device comprises a shock absorber, a rubber wheel, an upper half shell, a lower half shell, a shock absorption spring, a spring washer, a connecting sleeve, a spectrum stabilizing source and two groups of detectors; each group of detectors is formed by coaxially connecting an integrally packaged photomultiplier with a NaI crystal;
the photomultiplier ends of the two groups of detectors are sequentially provided with vibration reduction springs and vibration absorbers; naI crystal ends of the two groups of detectors are coaxially connected through a connecting sleeve and then sleeved in the upper half shell and the lower half shell; wherein, a rubber wheel is sleeved between the detector and the upper and lower half shells; a spring washer is arranged at the contact position of the NaI crystal and the connecting sleeve; the two spectrum stabilizing sources are respectively fixed on the side surfaces of the connecting sleeve.
Further, the electrical control assembly further includes: the device comprises a pre-amplification circuit board, a high-voltage circuit board, a data processing board, a power supply filter board and a power supply module;
the high-voltage circuit board is used for providing high voltage for the detector of the probe;
the pre-amplifying circuit board is used for amplifying the amplitude and the power of the received nuclear pulse output by the photomultiplier of the detector and transmitting the amplified nuclear pulse to the data processing circuit board;
the data processing circuit board comprises an analog-to-digital conversion unit, a digital-to-analog conversion unit and a central processing unit, and is used for carrying out pulse amplitude analysis on the received nuclear pulse with amplified amplitude and power, respectively entering 256 addresses according to the amplitude, accumulating, forming a full spectrogram with an accumulation period of 80ms, and transmitting the full spectrogram to the communication board through an SPI bus; meanwhile, the data processing circuit board also controls the high voltage provided by the high-voltage circuit board;
when the communication board pumps out in a working mode, the communication board communicates with an external storage control pup joint through a CAN communication interface and a socket or a plug of the communication board; in the cable working mode, the cable is communicated with an external telemetry sub through an Ethernet communication interface and a socket or a plug of the cable;
the power module is used for providing direct current of +/-12 VDC and +5VDC for the pre-amplifying circuit board, the high-voltage circuit board, the data processing board, the power filter board and the communication board;
the power supply filter plate is used for carrying out filter processing on the power supply module.
Further, the shock absorber is made of metal rubber materials.
Further, the rubber wheel is made of vinyl silicone rubber.
Further, the spring washer adopts a compression type wave spring washer.
Furthermore, the spectrum stabilizing source adopts americium radioactive source spectrum stabilizing.
Further, the NaI crystals were 1.5 inch diameter crystals.
Further, the power supply module adopts a modularized switching power supply circuit.
The beneficial effects are that: (1) According to the invention, the combination of the cable mode and the pump-out mode of the logging instrument is realized through the Ethernet communication interface and the CAN communication interface on the communication board; the miniaturization characteristic of the logging instrument is realized by adopting the small-diameter detector of the NaI crystal with the diameter of 1.5 inches, and the device can be applied to cable logging of a slim hole; by adopting two groups of detectors, the counting rate is improved, the defect of low detection efficiency of the small-diameter detector is overcome, and the detection efficiency is improved.
(2) The probe adopts a three-layer vibration reduction structure, namely the vibration absorbers and the vibration reduction springs at the two ends, the rubber wheel at the circumferential surface and the spring washer between the two groups of detectors, so that three-dimensional vibration reduction is realized, vibration and impact of the instrument in the use process, particularly in a pump-out mode, are effectively reduced, and the service life is prolonged.
(3) The invention improves the stability and spectrum stabilization precision of high voltage by adopting the americium radioactive source to stabilize the spectrum and utilizing the characteristic peak of the americium to stabilize the spectrum.
Drawings
Fig. 1 is a structural composition diagram of the present invention.
Fig. 2 is a structural view of the probe of the present invention.
The device comprises a 1-protective cap, a 2-socket, a 3-vibration absorber, a 4-probe, a 5-outer shell, a 6-pre-amplifying circuit board, a 7-high-voltage circuit board, an 8-circuit frame, a 9-data processing board, a 10-power filter board, an 11-communication board, a 12-power module, a 13-plug, a 14-protective plug, a 15-rubber wheel, a 16-upper half shell, a 16-lower half shell, a 17-vibration reduction spring, a 18-photomultiplier, a 19-NaI crystal, a 20-spring washer, a 21-connecting sleeve and a 22-stable spectrum source.
Detailed Description
The invention will now be described in detail by way of example with reference to the accompanying drawings.
The invention provides a small-diameter pump-out and cable dual-function natural gamma energy spectrum logging instrument, which is shown in figure 1, and comprises a protective cap 1, a socket 2, a probe 4, an outer shell 5, two circuit frames 8, a plug 13, a protective plug 14 and two groups of electric control components;
the connection relation is as follows: the protective cap 1 and the protective plug 14 are respectively positioned at two ends of the outer shell 5; the probe 4 is sleeved in the outer shell 5, two circuit frames 8 are respectively arranged at two ends of the probe 4, two groups of electric control components are respectively arranged on the two circuit frames 8, one ends of the two groups of electric control components are respectively and electrically connected with the probe 4, and the other ends of the two groups of electric control components are respectively connected with the socket 2 and the plug 13; the socket 2 is positioned at the end of the protective cap 1 of the outer shell 5, the plug 13 is positioned at the end of the protective plug 14 of the outer shell 5, the socket 2 and the plug 13 are respectively 19-core plugs and sockets, and are used for pressure-bearing sealed upper and lower communication connectors of an instrument;
referring to fig. 2, the probe 4 adopts a three-dimensional vibration damping structure, and comprises a vibration damper 3, a rubber wheel 15, an upper half shell 16, a lower half shell 16, a vibration damping spring 17, a spring washer 20, a connecting sleeve 21, a spectrum stabilizing source 22 and two groups of detectors; wherein, the shock absorber 3 is made of metal rubber material; the rubber wheel 15 is made of vinyl silicone rubber, and the spring washer 20 is a compression type wave spring washer; the spectrum stabilizing source 22 adopts americium radioactive source to stabilize the spectrum, and utilizes the characteristic peak spectrum stabilizing of americium to improve the stability and spectrum stabilizing precision of high voltage; each group of detectors is formed by coaxially connecting an integrally packaged anti-vibration photomultiplier 18 with an anti-vibration NaI crystal 19 with the diameter of 1.5 inches; the pulse amplitude output by the detector is proportional to the energy of the absorbed gamma rays;
the ends of photomultiplier 18 of the two groups of detectors are respectively provided with a damping spring 17 and a damper 3 in sequence; the NaI crystal 19 ends of the two groups of detectors are coaxially connected through a connecting sleeve 21 and then sleeved in the upper half shell 16 and the lower half shell 16; wherein, a rubber wheel 15 for vibration reduction is sleeved between the detector and the upper and lower half shells 16; a spring washer 20 is arranged at the contact position of the NaI crystal 19 and the connecting sleeve 21; the two spectrum stabilizing sources 22 are respectively fixed on the side surfaces of the connecting sleeve 21;
each set of said electrical control assemblies comprises: a pre-amplifying circuit board 6, a high-voltage circuit board 7, a data processing board 9, a power supply filter board 10, a communication board 11 and a power supply module 12;
the high-voltage circuit board 7 is used for providing high voltage for the detector of the probe 4;
the pre-amplifying circuit board 6 is used for amplifying the amplitude and the power of the received nuclear pulse output by the photomultiplier 18 of the detector and transmitting the amplified nuclear pulse to the data processing circuit board 9;
the data processing circuit board 9 comprises an analog-to-digital conversion unit, a digital-to-analog conversion unit and a central processing unit, and is used for carrying out pulse amplitude analysis on the received amplitude and power amplified nuclear pulse, respectively entering 256 addresses according to the amplitude, accumulating, forming a full spectrogram with an accumulating period of 80ms, and transmitting the full spectrogram to the communication board 11 through an SPI bus; meanwhile, the data processing circuit board 9 also controls the high voltage provided by the high voltage circuit board 7;
the communication board 11 is provided with an Ethernet communication interface and a CAN communication interface which are respectively used in a cable working mode and a pump-out working mode; when the logging instrument pumps out in a working mode, the logging instrument communicates with an external storage control nipple through a CAN communication interface, and measurement data is automatically stored on an interface board; the measurement and storage instruction is issued downwards by the storage control nipple, and the logging time mark is issued and recorded by the storage control nipple; in a cable working mode, the logging instrument communicates with an external telemetry nipple through an Ethernet communication interface, and measurement data is uploaded to the telemetry nipple and uploaded to a ground system;
the power module 12 can provide direct current of +/-12 VDC and +5VDC for the pre-amplifying circuit board 6, the high-voltage circuit board 7, the data processing board 9, the power filter board 10 and the communication board 11, and the power module 12 adopts a modularized switching power supply circuit, so that the power conversion efficiency is improved to the maximum extent, the circuit volume is reduced, and the power consumption of the power supply is reduced;
the power filter board 10 is used for filtering the power module 12.
In summary, the above embodiments are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. The small-diameter pump-out and cable dual-function natural gamma energy spectrum logging instrument is characterized by comprising a protective cap (1), a socket (2), a probe (4), an outer shell (5), two circuit frames (8), a plug (13), a protective plug (14) and two groups of electric control components;
the protective cap (1) and the protective plug (14) are respectively positioned at two ends of the outer shell (5); the probe (4) is sleeved in the outer shell (5), two circuit frames (8) are respectively arranged at two ends of the probe (4), two groups of electric control components are respectively arranged on the two circuit frames (8), one ends of the two groups of electric control components are respectively electrically connected with the probe (4), and the other ends of the two groups of electric control components are respectively connected with the socket (2) and the plug (13);
the communication board (11) on the electric control assembly is provided with an Ethernet communication interface and a CAN communication interface which are respectively used for signal transmission of a cable working mode and a pump-out working mode; when the communication board (11) is in a pump-out working mode, the communication board communicates with an external storage control short section through a CAN communication interface and a socket (2) or a plug (13); in the cable working mode, the cable is communicated with an external remote transmission nipple through an Ethernet communication interface and a socket (2) or a plug (13);
the probe (4) comprises: the device comprises a shock absorber (3), a rubber wheel (15), an upper half shell (16), a lower half shell (16), a shock absorption spring (17), a spring washer (20), a connecting sleeve (21), a spectrum stabilizing source (22) and two groups of detectors; wherein each group of detectors is formed by coaxially connecting an integrally packaged photomultiplier (18) with a NaI crystal (19);
vibration damping springs (17) and vibration dampers (3) are sequentially arranged at the ends of photomultiplier (18) of the two groups of detectors; naI crystals (19) of the two groups of detectors are coaxially connected through a connecting sleeve (21) and then sleeved in an upper half shell (16) and a lower half shell; wherein, a rubber wheel (15) is sleeved between the detector and the upper and lower half shells (16); a spring washer (20) is arranged at the contact position of the NaI crystal (19) and the connecting sleeve (21); two spectrum stabilizing sources (22) are respectively fixed on the side surfaces of the connecting sleeve (21);
the shock absorber (3) is made of metal rubber materials;
the rubber wheel (15) is made of vinyl silicone rubber;
the spring washer (20) is a compression type wave spring washer;
the NaI crystal (19) is a crystal with the diameter of 1.5 inches;
the spectrum stabilizing source (22) adopts americium radioactive source spectrum stabilizing.
2. The small diameter pump-out and cable dual function natural gamma spectroscopy tool of claim 1, wherein the electrical control assembly further comprises: a pre-amplifying circuit board (6), a high-voltage circuit board (7), a data processing board (9), a power supply filter board (10) and a power supply module (12);
the high-voltage circuit board (7) is used for providing high voltage for the detector of the probe (4);
the pre-amplifying circuit board (6) is used for amplifying the amplitude and the power of the received nuclear pulse output by the photomultiplier (18) of the detector and then transmitting the amplified nuclear pulse to the data processing board (9);
the data processing board (9) comprises an analog-to-digital conversion unit, a digital-to-analog conversion unit and a central processing unit, and is used for carrying out pulse amplitude analysis on the received amplitude and power amplified nuclear pulse, respectively entering 256 addresses according to the amplitude, accumulating, forming a full spectrogram with an accumulating period of 80ms, and transmitting the full spectrogram to the communication board (11) through an SPI bus; meanwhile, the data processing board (9) also controls the high voltage provided by the high voltage circuit board (7);
the power module (12) is used for providing direct current of +/-12 VDC and +5VDC for the pre-amplifying circuit board (6), the high-voltage circuit board (7), the data processing board (9), the power filter board (10) and the communication board (11);
the power supply filter board (10) is used for carrying out filter processing on the power supply module (12).
3. A small diameter pump out and cable dual function natural gamma spectroscopy tool as in claim 2 wherein the power module (12) employs a modular switching power circuit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610525217.3A CN106014377B (en) | 2016-07-06 | 2016-07-06 | Small-diameter pump-out and cable dual-function natural gamma energy spectrum logging instrument |
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| CN201610525217.3A CN106014377B (en) | 2016-07-06 | 2016-07-06 | Small-diameter pump-out and cable dual-function natural gamma energy spectrum logging instrument |
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| CN106014377B true CN106014377B (en) | 2023-06-27 |
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| CN107269264A (en) * | 2017-08-21 | 2017-10-20 | 西安基米克电子科技有限责任公司 | A kind of pair of water holding spike combination logging tool |
| CN107664033A (en) * | 2017-10-31 | 2018-02-06 | 中国石油集团川庆钻探工程有限公司 | Memory-type SGR double detector structure |
| CN111119845B (en) * | 2019-12-31 | 2023-10-27 | 北京环鼎科技有限责任公司 | 63 gamma-ray spectroscopy three-probe logging instrument and logging method thereof |
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| US7046010B2 (en) * | 2003-12-22 | 2006-05-16 | Halliburton Energy Services, Inc. | Multi-mode microresistivity tool in boreholes drilled with conductive mud |
| CN105604538B (en) * | 2014-11-03 | 2024-02-02 | 中国石油集团长城钻探工程有限公司 | Controllable neutron source compensation neutron logging instrument and control circuit thereof |
| CN104880736B (en) * | 2014-12-29 | 2017-10-03 | 上海新漫传感技术研究发展有限公司 | SGR and its method of work |
| CN105064988A (en) * | 2015-08-04 | 2015-11-18 | 中国科学院声学研究所 | Slim-hole natural gamma spectrometry logging device |
| CN205117327U (en) * | 2015-10-30 | 2016-03-30 | 郑州青林昊晟石油技术开发有限公司 | Double mode relevant flow instrument of storage direct reading |
| CN205206812U (en) * | 2015-11-02 | 2016-05-04 | 中国船舶重工集团公司第七一八研究所 | High accuracy natural gamma -ray logging appearance of popping one's head in more |
| CN205918414U (en) * | 2016-07-06 | 2017-02-01 | 中国船舶重工集团公司第七一八研究所 | Minor diameter pump with difunctional natural gamma ray spectral logging appearance of cable |
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