CN112814663A - Multipole array sound wave test and calibration device - Google Patents
Multipole array sound wave test and calibration device Download PDFInfo
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- CN112814663A CN112814663A CN202110020443.7A CN202110020443A CN112814663A CN 112814663 A CN112814663 A CN 112814663A CN 202110020443 A CN202110020443 A CN 202110020443A CN 112814663 A CN112814663 A CN 112814663A
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- 230000005405 multipole Effects 0.000 title claims abstract description 19
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- 229910052802 copper Inorganic materials 0.000 claims description 3
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- 239000011521 glass Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
- E21B47/14—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 using acoustic waves
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
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Abstract
The invention discloses a multi-pole array sound wave testing and scaling device which comprises an instrument operating platform, a stratum simulation testing barrel, a lifting device, a water injection barrel, a hand pump, a sealing adapter, a sealing joint, a sealing plug, a protective cap, a pressure gauge and a pressure-bearing valve, wherein the instrument operating platform is connected with the pressure-bearing valve; the stratum simulation testing barrel is arranged in a V-shaped supporting groove of an instrument operating platform, the sealing joint, the sealing plug, the protective cap, the pressure gauge and the pressure-bearing valve are arranged on the stratum simulation testing barrel, water is filled in the stratum simulation testing barrel, the multi-electrode subarray sound wave instrument is completely covered in the water, and a hand pump is used for injecting water and pressurizing. The device can solve the problems of factory calibration and calibration of the instrument, test and calibration of the transducer assembly, different combination tests, calibration and consistency adjustment of the whole instrument and the single component, realize remote technical support, instrument fault detection and calibration of the acoustic wave instrument, ensure the correctness of acoustic wave logging, and reduce the maintenance and technical support cost of the instrument.
Description
Technical Field
The invention belongs to the field of acoustic logging, and particularly relates to a multi-pole array acoustic testing and scaling device.
Background
At present, an acoustic logging instrument is an important tool for testing underground environment, and the accuracy and reliability of the acoustic logging instrument influence the judgment of people on the underground environment. The acoustic logging instrument works for a long time in a complex and severe environment, the consistency and symmetry of the transducer are poor, the quality of logging data is reduced, technical support personnel cannot timely and accurately judge the state of the instrument due to the lack of a checking means, the instrument can only be held to the site for solving the problem, and the acoustic logging instrument can not realize remote technical service aiming at a calibration device, a standard site checking device and a checking process in a laboratory environment. Firstly, the traditional detection method of the acoustic logging instrument is to carry out actual downhole test, then carry out comparison according to the test data of a standard instrument, and finally judge the performance of the tested acoustic logging instrument. The testing method of the acoustic logging instrument is quite complicated and limited by the environment, and the logging is completed every time, so that the cost is high and the efficiency is low. Secondly, when the logging site has instrument working problems, generally, technical personnel directly go to the site to carry out instrument inspection, measurement and problem solving, the mode has low working efficiency and long period, and the technical personnel need to go to the site to carry out problem solving every time, so that the cost is high, and the problem solving and the market response are slow. Finally, no good calibration and test device for the acoustic logging instrument in the laboratory environment exists at present, the instrument is verified and debugged functionally only by using simple experimental tools such as a water tank, and the tools simulate the approximate working environment of the instrument underground without any accident, so that the instrument successfully debugged in the laboratory can not adapt to the underground environment and can not be effectively calibrated.
At present, an acoustic logging instrument is an important tool for testing the underground environment, and the main purpose of acoustic logging is to estimate formation information by using the wave velocity of longitudinal waves and transverse waves. Because of errors in the interference of additional sources of sound with the receiver, such as instrument tilt, jostling, borehole boundary effects, etc., receiving transducers tend to have different sensitivities, which measure the same wave with the result of a greater error effect, even though the same manufactured receiving transducer tends to exhibit different amplitudes and receive times (i.e., amplitude and phase mismatches). Accordingly, the sonic logging instrument receiving transducer must typically be calibrated to improve the quality and accuracy of the logging data. With the increasing number of receiving transducers used in logging instruments, calibration of the receiving transducers becomes a very time-consuming and expensive task, there is currently no efficient method and apparatus, and many important factors, such as the final installation of the transducers on the logging instrument and the actual operating environment, are ignored, which presents great difficulties for the development of acoustic instruments.
In oil field logging, in order to test, calibrate and scale a logging instrument, a standard testing system of the logging instrument needs to be established. With the continuous introduction of logging instruments and the improvement of the localization level of the instruments, the function of instrument scales is more and more important. The main needs in production workshops and laboratories are: the calibration method comprises the steps of instrument delivery calibration and calibration problems, transducer assembly testing and calibration problems, measurement problems of different combinations of the whole instrument and an individual part, and calibration and adjustment problems of calibration and instrument consistency. The main needs to be solved in each division and well logging base: the calibration and instrument calibration problem of the field acoustic logging instrument, how to realize the remote technical support of the acoustic logging instrument and the instrument fault detection, and finding out the problem, provides a solution, and reduces the maintenance and technical support cost of the acoustic logging instrument.
Disclosure of Invention
The invention aims to provide a multi-pole subarray sound wave testing and scaling device, which is used for solving the problems in the prior art and has the advantages of simple structure, convenience in use, stable performance, low cost and convenience in maintenance.
In order to achieve the purpose, the invention adopts the following technical scheme:
a multi-pole array acoustic wave test and calibration device comprises a stratum simulation test barrel, an instrument operating platform, a sealing adapter, a centralizer, an acoustic logging instrument, an acquisition system and a data analysis and processing system;
the utility model discloses a test bucket, including the stratum simulation test bucket, sound wave logging instrument, centralizer and sound wave logging instrument, the stratum simulation test bucket is provided on instrument operation platform, sound wave logging instrument sets up in the stratum simulation test bucket, and sets up a plurality of centralizers between sound wave logging instrument and the stratum simulation test bucket, sealed adapter pass through the screw thread and install on the sound wave logging instrument, it has water to fill in the stratum simulation test bucket, centralizer and sound wave logging instrument cover completely in the aquatic, collection system is connected with sound wave logging instrument electricity for gather the sound wave propagation signal of sound wave logging instrument, data analysis and processing system are connected with collection system for compare sound wave propagation signal and stratum simulation test bucket sound wave characteristic parameter, inspect the measurement index of sound wave logging instrument to amplitude and phase mismatch between the different receivers of correction and compensation sound wave logging instrument.
Further, the stratum simulation test barrel comprises a stratum simulation pipe, a sealing joint, a sealing plug, a protective cap, a pressure gauge, a pressure-bearing valve and a sealing plug;
the sealing joint is welded or the thread and sealing ring structure is arranged at two ends of the stratum simulation pipe and realizes sealing, the pressure gauge, the pressure-bearing valve and the sealing plug are respectively arranged on the sealing joint through the thread and sealing ring structure and realize sealing, the sealing plug is arranged at one end of the stratum simulation test barrel, and the protective cap is arranged on the sealing joint through the thread.
Furthermore, four through holes are symmetrically formed in the two sealing joints, pressure-bearing valves are respectively arranged in the two symmetrical through holes in the sealing joint at one end, the pressure-bearing valve located on the upper side is connected with a pressure gauge, the pressure-bearing valve is arranged in one through hole located on the lower side in the sealing joint at the other end, and sealing plugs are arranged in the rest through holes of the two sealing joints.
Furthermore, the sealing adapter is arranged inside the sealing connector provided with the two pressure-bearing valves, the sealing plug is inserted inside the sealing connector provided with the pressure-bearing valve, and the two protective caps are respectively used for limiting the sealing adapter and the sealing plug.
Further, the stratum simulation pipe is a seamless stainless steel pipe, a seamless glass steel pipe, a seamless aluminum pipe or a seamless copper pipe with known and stable sound velocity.
Further, the instrument operation platform comprises an instrument pushing frame, a lifting device, a water injection barrel and a hand pump;
the lifting device is installed at one end of the instrument pushing frame through bolts and nuts, the water injection barrel is arranged on the instrument pushing frame and is connected with the hand pump through a pipeline, the hand pump is installed on the instrument pushing frame through bolts and nuts, and the free end of the hand pump is connected with the stratum simulation testing barrel to achieve multipolar array acoustic wave testing and water injection pressurization of the calibration device.
Furthermore, the lifting device comprises a supporting seat, a hydraulic jack, a supporting rod, a semicircular supporting groove and a semicircular protection fixing structure;
the supporting seat is installed through bolt and nut on the instrument pushing frame, hydraulic jack passes through bolt and nut to be installed on the supporting seat, the bracing piece is installed through the welding on the hydraulic jack, semicircle supports the groove and passes through the welding and install on the bracing piece, semicircle protection fixed knot constructs to be installed through bolt and nut on the semicircle supports the groove, semicircle supports groove and semicircle protection fixed knot and constructs and be used for the cooperation to support the stratum simulation test bucket.
Furthermore, the number of the centralizers is at least 3, and the centralizers are uniformly supported at two ends and the middle in the stratum simulation test barrel.
Furthermore, a plurality of grooves or holes capable of passing water are arranged on the outer wall of the centralizer.
Further, the centralizer is made of polytetrafluoroethylene.
Compared with the prior art, the invention has the following beneficial technical effects:
the stratum simulation test barrel is not vertically placed underground, but is horizontally supported on the ground by an instrument operation platform, an instrument is arranged in the stratum simulation test barrel through an instrument support and is injected with water and pressurized, the instrument works in various modes in the stratum simulation test barrel, the amplitude and phase mismatch among different receiving transducers is corrected and compensated through a software program, the sound velocity of a known standard material is measured and compared, the calibration and calibration of a sound wave instrument when leaving a factory, the test and calibration of a transducer and a transducer assembly, and the calibration and instrument consistency calibration of different combinations of the whole instrument and an individual part are realized, the requirements and the requirements of on-site calibration of the sound wave instrument and the instrument are met, the maintenance and technical support cost of the sound wave instrument are reduced, the cost of experimental equipment required for building a sound wave instrument test and calibration well is reduced, and the technical support of the sound wave instrument with low cost and high efficiency is realized, And (5) detecting instrument faults and scaling.
Drawings
Fig. 1 is a testing flow chart of a multi-pole sub-array acoustic wave testing and calibration apparatus according to the present invention.
Fig. 2 is a schematic composition diagram of a multipole array acoustic wave testing and calibration apparatus according to the present invention.
Fig. 3 is a schematic structural diagram of a formation simulation test bucket according to the present invention.
Fig. 4 is a schematic structural diagram of the lifting device of the present invention.
Fig. 5 is a comparison of the waveforms of the test and calibration apparatus test sonic instrument of the present invention.
The device comprises a sealing adapter 1, water 2, a lifting device 3, a hand pump 4, a water injection barrel 5, a centralizer 6, a stratum simulation test barrel 7, an instrument operation platform 8, a sound wave logging instrument 9, a protective cap 7-1, a pressure gauge 7-2, a pressure-bearing valve 7-3, a sealing joint 7-4, a stratum simulation pipe 7-5, a sealing plug 7-6, a sealing plug 7-7, a supporting seat 3-1, a hydraulic jack 3-3, a supporting rod 3-4, a semicircular supporting groove 3-5 and a semicircular protection fixing structure 3-5.
Detailed Description
The following embodiments of the present invention will be further described with reference to the accompanying drawings:
as shown in fig. 2, the device for testing and calibrating the sound wave of the multi-pole sub-array comprises a stratum simulation testing barrel 7, an instrument operating platform 8, a centralizer 6, water 2, a sound wave logging instrument 9, a sealing adapter 1, an acquisition system and a data analysis and processing system;
the bottom of the stratum simulation test barrel 7 is symmetrically provided with 2 instrument operation platforms 8, the stratum simulation test barrel 7 is arranged in a V-shaped support groove on the instrument operation platforms 8, the stratum simulation test barrel 7 is not vertically placed underground but horizontally supported on the ground by the instrument operation platforms 8, the 1 sealing adapter 1 is installed on the acoustic logging instrument 9 through threads, the 8 centralizers 6 are fixed on the acoustic logging instrument 9 through screws, the acoustic logging instrument 9 and the centralizers 6 are installed in the stratum simulation test barrel 7 through instrument supports and are pressurized by water injection, the water 2 is filled in the stratum simulation test barrel 7, and the centralizers 6 and the acoustic logging instrument 9 are completely covered in the water 2.
The centralizer 6 is made of polytetrafluoroethylene, has enough strength, is an arc smaller than a semicircle in shape, has the same radian as that of the inner wall of the stratum simulation testing barrel 7, can slide along the inner wall of the stratum simulation testing barrel 7, has a certain support and centralizes the acoustic logging instrument 9 during use, and reduces the friction force between the acoustic logging instrument 9 and the stratum simulation testing barrel 7. The centralizer 6 should have 3-8 grooves or holes through which the water can pass, preventing the water from flowing and exhausting.
As shown in fig. 3, the formation simulation testing barrel 7 comprises a formation simulation pipe 7-5, 2 sealing joints 7-4, a sealing plug 7-6, 2 protective caps 7-1, a pressure gauge 7-2, 3 pressure-bearing valves 7-3 and 5 sealing plugs 7-7;
the 2 sealing joints 7-4 are respectively installed at two ends of the stratum simulation pipe 7-5 through welding or a thread plus sealing ring structure to realize sealing, the stratum simulation pipe 7-5 is a seamless stainless steel pipe, a seamless glass steel pipe, a seamless aluminum pipe, a seamless copper pipe and the like, the sound velocity of the stratum simulation pipe 7-5 is known and stable, the sound velocity is basically constant after long-time measurement, the stratum simulation pipe 7-5 is required to be a seamless pipe, and a formed uniform symmetrical standard sound field is used as a basis for measuring and calibrating an instrument.
The 1 pressure gauge 7-2, the 3 pressure-bearing valves 7-3 and the 5 sealing plugs 7-7 are respectively arranged at corresponding positions on the sealing joints 7-4 through thread sealing ring structures, and the functions of bearing pressure and sealing water are realized. The sealing plug 7-6 is arranged in a sealing joint 7-4 at one end of the stratum simulation testing barrel 7, and pressure-bearing sealing is realized by using a sealing ring structure. The protective cap 7-1 is installed on the sealing joints 7-4 at two ends of the stratum simulation testing barrel 7 through rotating a handle on the protective cap by using threads, and the sealing joints 1 and the sealing plugs 7-6 are prevented from withdrawing when the stratum simulation testing barrel 7 is subjected to a pressing test.
As shown in fig. 2, the instrument operation platform 8 comprises an instrument cart frame, a lifting device 3, a water injection bucket 5, a hand pump 4 and a pipeline;
the multipole array acoustic wave testing and scaling device is provided with 2 instrument operating platforms 8, and the lifting device 3 is installed at one end of each instrument operating platform 8 through bolts and nuts, so that the formation simulation testing barrel 7 can be lifted at a certain angle in the horizontal direction. The water injection barrel 5 is installed on the instrument operating platform 8 through screws and nuts and is connected with the hand pump 4 through the pipeline, so that water supply of the hand pump is realized. The hand pump 4 is installed on the instrument pushing frame through bolts and nuts, one end of the pipeline is connected with the water injection barrel 5, the other end of the pipeline is connected with the stratum simulation testing barrel 7, the hand pump 4 is used for injecting water into the stratum simulation testing barrel 7 to pressurize to 1-5 MPa, pressurization testing is achieved, air hidden in gaps and corners of the instrument is extruded out through pressure, the testing barrel is discharged, an even sound wave propagation path is established for instrument measurement, the sound field symmetry is good, and sound wave propagation influence is reduced.
As shown in fig. 4, the lifting device 3 comprises a support base 3-1, a hydraulic jack 3-2, a support rod 3-3, a semicircular support groove 3-4 and a semicircular protection fixing structure 3-5;
the support seat 3-1 is installed on the instrument operating platform 8 through a bolt and a nut, the hydraulic jack 3-2 is installed on the support seat 3-1 through a bolt and a nut, the support rod 3-3 is installed on the hydraulic jack 3-2 through welding, the semicircular support groove 3-4 is installed on the support rod 3-3 through welding, and the semicircular protection fixing structure 3-5 is installed on the semicircular support groove 3-4 through a bolt and a nut. When the device is used, the semicircular supporting grooves 3-4 and the semicircular protective fixing structures 3-5 are connected through screws and nuts to hold the stratum simulation testing barrel 7, so that the stratum simulation testing barrel 7 is prevented from shifting and rolling when rising to a certain angle in the horizontal direction, and the angle is favorable for releasing air in the testing barrel.
The device can effectively solve the problems of factory calibration and calibration of the instrument, establishment of acoustic wave instrument standards, test and calibration of the transducer and the transducer assembly, measurement of different combinations of the whole instrument and single parts, calibration and instrument consistency adjustment, requirements and requirements of site on acoustic wave calibration and instrument calibration, and realization of remote technical support of the acoustic wave instrument, instrument fault detection and instrument calibration.
In practical application, as shown in fig. 1, a test process is performed, wherein a formation simulation test barrel 7, an instrument operation platform 8 and a lifting device 3 are installed in place according to the embodiment, the sealing adapter 1 is installed on the acoustic logging instrument 9 through threaded connection, a sealing ring is installed, the 8 centralizers 6 are fixed on the acoustic logging instrument 9 through screws, then the acoustic logging instrument 9 and the centralizers 6 are installed in the formation simulation test barrel 7, the acoustic logging instrument 9 is centrally arranged in the formation simulation test barrel 7, a sealing ring on the outer surface of the sealing adapter 1 enables the sealing adapter 1 and the sealing adapter 7-4 to be in sealing pressure bearing, and a sealing ring on the outer surface of the acoustic logging instrument 9 enables the sealing adapter 1 and the acoustic logging instrument 9 to be in sealing pressure bearing. After the device is installed in place, external tap water is used for connecting the pressure-bearing valve 7-3 at one end of the stratum simulation testing barrel 7 for water injection, and the pressure-bearing valve 7-3 at the other end of the stratum simulation testing barrel 7 is opened for air exhaust. In the water injection process, the lifting device 3 is used for lifting the stratum simulation testing barrel 7 by a certain angle in the horizontal direction, so that the whole stratum simulation testing barrel 7 is filled with water as much as possible, after the water injection is finished, the water injection and exhaust pressure-bearing valve 7-3 is closed, and the hand pump 4 is used for injecting water into the stratum simulation testing barrel 7 and pressurizing the water by 1-5 MPa, so that the pressurization test is realized. Then, a transmitting transducer in the acoustic logging instrument 9 is used for transmitting acoustic signals into the stratum simulation test barrel 7, the acoustic signals are transmitted through the fluid and the pipe wall of the stratum simulation pipe 7-5, a receiving transducer in the acoustic logging instrument 9 is used for receiving the acoustic transmission signals in the stratum simulation pipe 7-5 and sending the signals to a data acquisition system, the signals are further transmitted to a data analysis and processing system through the data acquisition system, the data analysis and processing system receives the transmitted acoustic transmission signals, the data are compared with the acoustic characteristic parameters of the stratum simulation pipe 7-5 in the system, the measurement indexes of the acoustic logging instrument 9 are checked, the amplitude and phase mismatch among different receivers of the acoustic logging instrument 9 is corrected and compensated through a software program, the test waveform result is shown in figure 5, and the calibration of the acoustic logging instrument are realized, And verifying and correcting the response of the acoustic wave transducer, and carrying out instrument calibration, adjustment and fault finding and solving so as to ensure the correctness of logging. The problems of factory calibration and calibration of the instrument are solved; the testing and calibration of the transducer and the transducer assembly are realized; the measurement of different combinations of the whole instrument and the single part, and the consistency adjustment of the scales and the instrument are realized; the requirements and the requirements of the site on the calibration of the acoustic wave scale and the instrument are met; the remote technical support, the instrument fault detection and the instrument calibration of the sound wave instrument are realized.
Claims (10)
1. A multi-pole array acoustic wave test and calibration device is characterized by comprising a stratum simulation test barrel (7), an instrument operating platform (8), a sealing adapter (1), a centralizer (6), an acoustic logging instrument (9), an acquisition system and a data analysis and processing system;
the stratum simulation test bucket (7) sets up on instrument operation platform (8), sound wave logging instrument (9) set up in stratum simulation test bucket (7), and set up a plurality of centralizer (6) between sound wave logging instrument (9) and stratum simulation test bucket (7), sealed adapter (1) install through the screw thread on sound wave logging instrument (9), it has water (2) to fill in stratum simulation test bucket (7), centralizer (6) and sound wave logging instrument (9) cover completely in water (2), collection system and sound wave logging instrument (9) electricity are connected for gather the sound wave propagation signal of sound wave logging instrument (9), data analysis and processing system are connected with collection system for compare sound wave propagation signal and stratum simulation test bucket (7) sound wave characteristic parameter, the measurement indices of the sonic logging instrument (9) are examined and amplitude and phase mismatches between different receivers of the sonic logging instrument (9) are corrected and compensated for.
2. The multipole array acoustic testing and calibration device according to claim 1, wherein the formation simulation testing barrel (7) comprises a formation simulation pipe (7-5), a sealing joint (7-4), a sealing plug (7-6), a protective cap (7-1), a pressure gauge (7-2), a pressure-bearing valve (7-3) and a sealing plug (7-7);
the sealing joint (7-4) is welded or a thread sealing ring structure is arranged at two ends of the stratum simulation pipe (7-5) to realize sealing, the pressure gauge (7-2), the pressure-bearing valve (7-3) and the sealing plug (7-7) are respectively arranged on the sealing joint (7-4) through a thread sealing ring structure to realize sealing, the sealing plug (7-6) is arranged at one end of the stratum simulation testing barrel (7), and the protective cap (7-1) is arranged on the sealing joint (7-4) through a thread.
3. The multipole array acoustic wave test and calibration device according to claim 2, wherein four through holes are symmetrically formed in each of the two sealing joints (7-4), wherein a pressure-bearing valve (7-3) is respectively arranged in each of the two symmetrical through holes in the sealing joint (7-4) at one end, a pressure gauge (7-2) is connected to the pressure-bearing valve (7-3) at the upper side, a pressure-bearing valve (7-3) is arranged in one through hole at the lower side in the sealing joint (7-4) at the other end, and sealing plugs (7-7) are arranged in the other through holes of the two sealing joints (7-4).
4. A multipole array acoustic testing and calibration apparatus according to claim 3, characterised in that a sealing adapter (1) is provided inside the sealing joint (7-4) provided with two pressure-bearing valves (7-3), a sealing plug (7-6) is inserted inside the sealing joint (7-4) provided with one pressure-bearing valve (7-3), and two protective caps (7-1) are respectively used for limiting the sealing adapter (1) and the sealing plug (7-6).
5. The multipole array acoustic wave test and calibration device according to claim 2, wherein the formation simulation pipes (7-5) are seamless stainless steel pipes, seamless glass steel pipes, seamless aluminum pipes or seamless copper pipes with known and stable acoustic velocity.
6. The multipole array acoustic testing and calibration apparatus according to claim 1, wherein the instrument operation platform (8) comprises an instrument cart frame, a lifting device (3), a water injection bucket (5) and a hand pump (4);
elevating gear (3) are installed through bolt and nut instrument shallow frame one end, water injection bucket (5) set up on the instrument shallow frame and pass through the pipeline with hand pump (4) are connected, hand pump (4) are installed through bolt and nut on the instrument shallow frame, the free end of hand pump (4) with formation simulation test bucket (7) are connected the realization multipolar subarray acoustic test and scale device water injection pressurization.
7. The sound wave test and calibration device of the multi-pole sub-array as claimed in claim 6, wherein the lifting device (3) comprises a support base (3-1), a hydraulic jack (3-2), a support rod (3-3), a semicircular support groove (3-4) and a semicircular protection fixing structure (3-5);
the device is characterized in that the supporting seat (3-1) is installed on the instrument pushing frame through a bolt and a nut, the hydraulic jack (3-2) is installed on the supporting seat (3-1) through a bolt and a nut, the supporting rod (3-3) is installed on the hydraulic jack (3-2) through welding, the semicircular supporting groove (3-4) is installed on the supporting rod (3-3) through welding, the semicircular protection fixing structure (3-5) is installed on the semicircular supporting groove (3-4) through a bolt and a nut, and the semicircular supporting groove (3-4) and the semicircular protection fixing structure (3-5) are used for supporting the stratum simulation testing barrel (7) in a matched mode.
8. The sound wave test and calibration device of claim 1, wherein the number of the centralizers (6) is at least 3, and the centralizers are uniformly supported at two ends and in the middle in the formation simulation test barrel (7).
9. A multi-pole sub-array acoustic wave test and calibration device according to claim 8, wherein the centralizer (6) is provided with a plurality of grooves or holes on its outer wall for water to pass through.
10. A multipole array acoustic testing and calibration device according to claim 1 in which the centraliser (6) is made of teflon.
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| CN202110020443.7A CN112814663A (en) | 2021-01-07 | 2021-01-07 | Multipole array sound wave test and calibration device |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101942987A (en) * | 2010-08-13 | 2011-01-12 | 中国海洋石油总公司 | Simple sonic logger detection, calibration and ruling method |
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