CN216311157U - Compensation method acoustic logging principle presentation device - Google Patents
Compensation method acoustic logging principle presentation device Download PDFInfo
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- CN216311157U CN216311157U CN202122543151.XU CN202122543151U CN216311157U CN 216311157 U CN216311157 U CN 216311157U CN 202122543151 U CN202122543151 U CN 202122543151U CN 216311157 U CN216311157 U CN 216311157U
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Abstract
The utility model relates to a teaching demonstration device, in particular to a compensation method acoustic logging principle demonstration device, which mainly comprises an annular organic glass cylinder, a double-transmitter double-receiver system, a sound insulation protection tube, signal acquisition equipment, a lead and a traction wire; the annular organic glass barrel is divided into annular spaces of an upper portion, a middle portion and a lower portion, water, silt and crude oil are respectively arranged inside the upper portion, the middle portion and the lower portion of the annular organic glass barrel, the central portion of the annular organic glass barrel is a hollow tube, the radius of the lower portion of the hollow tube is minimum, the radius of the middle portion and the radius of the upper portion of the hollow tube are the same, the double-transmitting double-receiving system comprises a first transmitting probe, a second transmitting probe, a first receiving probe and a second receiving probe, the double-transmitting double-receiving system is placed in the sound insulation protection tube, the sound insulation protection tube is placed in the hollow tube, and the signal acquisition equipment is connected with the sound system through a wire. The demonstration device provided by the utility model is simple in structure, economical, practical and convenient to operate, and can realize demonstration simulation of the compensation method acoustic logging principle.
Description
Technical Field
The utility model relates to the technical field of well logging principle demonstration, in particular to a device for demonstrating an acoustic well logging principle by a compensation method.
Background
The acoustic logging is a logging method for identifying and judging various physical characteristics of rock masses by utilizing acoustic feedback time difference characteristics of different rock masses according to an acoustic physical theory. The principle of recording the propagation time of the sliding longitudinal wave in the stratum in situ is adopted, the velocity characteristic of the stratum around the well can be directly reflected, and the longitudinal resolution is far higher than that of seismic data. As one of three well logging methods, acoustic logging plays a very important role in oil and gas exploration and development. In the oil and gas exploration stage, the mechanical properties of the rock and the porosity of the stratum can be calculated by using acoustic logging information; in the oil and gas development stage, the damage condition of the casing can be detected by using acoustic logging information, and the fracturing operation and the like can be guided. In recent years, under the continuous promotion of computers and data processing technologies, the process of microwave analysis of acoustic logging is continuously accelerated, so that more and more accurate stratum acoustic properties can be obtained by an acoustic logging instrument in logging exploration, the application range of acoustic logging in stratum evaluation is greatly expanded, and the development of geological exploration business and the reasonable development and utilization of mineral resources in China are promoted. In the actual teaching activities, a demonstration device for the double-transmitting and double-receiving acoustic logging principle does not exist, and in order to enable students in related professions to understand the principle of the double-transmitting and double-receiving acoustic logging method more deeply, a corresponding demonstration device is needed to demonstrate the principle and the process of the experiment.
Disclosure of Invention
The demonstration device provided by the utility model is simple in structure, economical and practical, convenient to operate and reliable in data, and can realize demonstration simulation of the compensation method acoustic logging principle.
The utility model discloses a compensation method acoustic logging principle demonstration device, which mainly comprises an annular organic glass cylinder, a double-transmitting double-receiving system, a sound insulation protection tube, signal acquisition equipment, a lead and a traction wire, wherein the annular organic glass cylinder is provided with a plurality of through holes; the annular organic glass cylinder body is divided into an upper annular space, a middle annular space and a lower annular space which are mutually separated, the radius of the lower annular space is the largest, the radius of the middle annular space is the same as that of the upper annular space, crude oil is arranged in the lower annular space of the three annular spaces, silt is arranged in the annular space of the middle annular space, water is arranged in the annular space of the upper annular space, the central part of the annular organic glass cylinder body is a hollow pipe, the radius of the lower annular space of the hollow pipe is the smallest, the radius of the middle hollow pipe is the same as that of the upper hollow pipe, hydraulic oil is filled in the hollow pipe, the double-transmitting and double-receiving system comprises a first transmitting probe, a second transmitting probe, a first receiving probe and a second receiving probe, the first transmitting probe, the second transmitting probe, the first receiving probe and the second receiving probe are connected through wires and placed in the protective pipe, and the sound insulation protective pipe is placed in the hollow pipe of the annular organic glass cylinder body, the device is drawn by a drawing wire, a signal acquisition device is arranged outside the annular organic glass cylinder, and the signal acquisition device is connected with a double-transmitting double-receiving sound system through a lead.
Preferably, the radius of the lower part of the annular organic glass cylinder hollow tube is the smallest, and the radius of the middle part of the annular organic glass cylinder hollow tube is the same as that of the upper part of the annular organic glass cylinder hollow tube.
The utility model is explained in the operation of use:
(1) the annular organic glass cylinder hollow tube is filled with hydraulic oil.
(2) The three materials of water, silt and crude oil filled in the upper annular space, the middle annular space and the lower annular space can be changed in sequence at will.
(3) The double-transmitting and double-receiving system is arranged in the sound insulation protection pipe in sequence from top to bottom, namely a first transmitting probe, a first receiving probe, a second receiving probe and a second transmitting probe are arranged in the sound insulation protection pipe, and the sound wave logging by the double-transmitting and double-receiving compensation method is completed.
(4) The pull wire is used for bearing and the lead wire is used for transmitting signals.
The method comprises the following operation steps:
(1) the upper, middle and lower annular spaces are filled with water, silt and crude oil respectively.
(2) And connecting the devices according to an experimental principle schematic diagram.
(3) After all the devices are connected, the hollow pipe is filled with hydraulic engine oil.
(4) The pulley is hand-operated, the double-transmitting and double-receiving acoustic system is placed at the interface section of silt and crude oil, namely, the first transmitting probe and the first receiving probe are placed at the silt section, and the second receiving probe and the second transmitting probe are placed at the crude oil section.
(5) And (3) exciting the first transmitting probe to transmit signals by using the signal acquisition equipment, and recording the signals acquired by the first receiving probe and the second receiving probe, namely the voltage value and the signal acquisition time.
(6) And (3) exciting the second transmitting probe to transmit signals by using the signal acquisition equipment, and recording the signals acquired by the first receiving probe and the second receiving probe, namely the voltage value and the signal acquisition time.
(7) The pulley is hand-operated, and the double-transmitting and double-receiving system is arranged at the bottommost part of the hollow pipe, so that the whole double-transmitting and double-receiving system is inclined.
(8) And (3) exciting the first transmitting probe to transmit signals by using the signal acquisition equipment, and recording the signals acquired by the first receiving probe and the second receiving probe, namely the voltage value and the signal acquisition time.
(9) And (3) exciting the second transmitting probe to transmit signals by using the signal acquisition equipment, and recording the signals acquired by the first receiving probe and the second receiving probe, namely the voltage value and the signal acquisition time.
The utility model has the beneficial effects that:
compared with the existing single-transmitting single-receiving and single-transmitting double-receiving technologies, the acoustic logging principle demonstration device has the advantages of simple structure, economy, practicability, convenience in operation and reliable data, can eliminate the influence of borehole change in measurement and the influence of inclination of an instrument in a borehole, can directly simulate the principle of the acoustic logging method by a compensation method, and is a principle demonstration device for demonstrating the acoustic logging principle, which can meet the actual teaching requirements.
Drawings
Fig. 1 is a schematic structural diagram 1 according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram 2 according to an embodiment of the present invention.
Shown in the figure: 1 is annular organic glass barrel, 2 is two sound systems of sending out, 3 is the sound insulation protection tube, 4 is signal acquisition equipment, 5 is the wire, 6 is the pull wire, 7 is the montmorillonite, 8 is silt, 9 is water, 10 is the hollow tube, 11 is hydraulic machine oil, 12 is first transmitting probe, 13 is first receiving probe, 14 is the second receiving probe, 15 is the second transmitting probe, 16 is the pulley.
Detailed Description
Example 1:
referring to fig. 1, which is a schematic structural diagram of an embodiment of the present invention, an experimental apparatus for demonstrating a well logging principle by using a compensation method includes an annular organic glass cylinder 1, a dual-transmitter dual-receiver system 2, a sound insulation protection tube 3, a signal acquisition device 4, a lead 5, and a pull wire 6; the annular organic glass cylinder body 1 is divided into an upper annular space, a middle annular space and a lower annular space which are mutually separated, the radius of the lower annular space is the largest, the radius of the middle annular space is the same as that of the upper annular space, crude oil 7 is arranged in the lower annular space of the three annular spaces, silt 8 is arranged in the middle annular space, water 9 is arranged in the upper annular space, the central part of the annular organic glass cylinder body 1 is a hollow pipe 10, the radius of the lower part of the hollow pipe 10 is the smallest, the radius of the middle hollow pipe is the same as that of the upper hollow pipe, hydraulic oil 11 is filled in the hollow pipe, the double-transmitting and double-receiving system comprises a first transmitting probe 12, a second transmitting probe 15, a first receiving probe 13 and a second receiving probe 14, the first transmitting probe 12, the second transmitting probe 15, the first receiving probe 13 and the second receiving probe 14 are connected and placed in the sound insulation protection pipe 3 through a lead 5, the sound insulation protection tube 3 is placed in the hollow tube 10 of the annular organic glass cylinder and is pulled by a pull wire 6, a signal acquisition device 4 is arranged outside the annular organic glass cylinder 1, and the signal acquisition device 4 is connected with the double-transmitting and double-receiving system 2 through a lead 5.
When in use, (1) the devices are connected according to the experimental principle schematic diagram.
(2) After all the devices are connected, the hollow pipe is filled with hydraulic engine oil.
(3) The pulley is hand-operated, the double-transmitting and double-receiving acoustic system is placed at the interface section of silt and crude oil, namely, the first transmitting probe and the first receiving probe are placed at the silt section, and the second receiving probe and the second transmitting probe are placed at the crude oil section.
(4) And (3) exciting the first transmitting probe to transmit signals by using the signal acquisition equipment, and recording the signals acquired by the first receiving probe and the second receiving probe, namely the voltage value and the signal acquisition time.
(5) And (3) exciting the second transmitting probe to transmit signals by using the signal acquisition equipment, and recording the signals acquired by the first receiving probe and the second receiving probe, namely the voltage value and the signal acquisition time.
The results of preliminary experiments were:
the double-transmitting and double-receiving acoustic logging utilizes a compensation method, so that the influence of borehole change can be eliminated, and the data acquired and processed by the signal acquisition equipment is more accurate.
Example 2:
(1) the pulley is hand-operated, and the double-transmitting and double-receiving system is arranged at the bottommost part of the hollow pipe, so that the whole double-transmitting and double-receiving system is inclined.
(2) And (3) exciting the first transmitting probe to transmit signals by using the signal acquisition equipment, and recording the signals acquired by the first receiving probe and the second receiving probe, namely the voltage value and the signal acquisition time.
(3) And (3) exciting the second transmitting probe to transmit signals by using the signal acquisition equipment, and recording the signals acquired by the first receiving probe and the second receiving probe, namely the voltage value and the signal acquisition time.
The results of preliminary experiments were:
the double-transmitting and double-receiving acoustic logging utilizes a compensation method, so that the influence of the instrument on the inclination of a borehole can be eliminated, the signal acquisition work is more convenient, and the processed data is more accurate.
Claims (1)
1. A demonstration device for an acoustic logging principle by a compensation method mainly comprises an annular organic glass cylinder, a double-transmitter double-receiver system, a sound insulation protection tube, signal acquisition equipment, a lead and a traction wire; the annular organic glass cylinder body is divided into an upper annular space, a middle annular space and a lower annular space which are mutually separated, crude oil is arranged in the lower annular space of the three annular spaces, silt is arranged in the annular space of the middle annular space, water is arranged in the upper annular space, the central part of the annular organic glass cylinder body is a hollow tube, the radius of the lower part of the hollow tube is the smallest, the radius of the middle part of the hollow tube is the same as that of the upper part of the hollow tube, the double-transmitting and double-receiving system comprises a first transmitting probe, a second transmitting probe, a first receiving probe and a second receiving probe, the first transmitting probe, the second transmitting probe, the first receiving probe and the second receiving probe are connected and placed in the sound insulation protecting tube through wires, the sound insulation protecting tube is placed in the hollow tube of the annular organic glass cylinder body and is pulled by a pulling wire, and a signal collecting device is arranged outside the annular organic glass cylinder body, the signal acquisition equipment is connected with the compensation sound system through a lead.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122543151.XU CN216311157U (en) | 2021-10-20 | 2021-10-20 | Compensation method acoustic logging principle presentation device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122543151.XU CN216311157U (en) | 2021-10-20 | 2021-10-20 | Compensation method acoustic logging principle presentation device |
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| CN216311157U true CN216311157U (en) | 2022-04-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115288668A (en) * | 2022-07-27 | 2022-11-04 | 重庆大学 | Wellbore leakage simulation displacement loading device |
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2021
- 2021-10-20 CN CN202122543151.XU patent/CN216311157U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115288668A (en) * | 2022-07-27 | 2022-11-04 | 重庆大学 | Wellbore leakage simulation displacement loading device |
| CN115288668B (en) * | 2022-07-27 | 2024-05-31 | 重庆大学 | Shaft leakage simulation displacement loading device |
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