A sonar-laser integrated cavity measurement system and method

Abstract

This invention discloses an integrated sonar-laser cavity measurement system and method. The system includes a ground control device and an underground measurement device. The underground measurement device includes a power unit and a probe section. A first sonar probe is mounted at the bottom of the probe section, and a second sonar probe and a laser probe are mounted on its side. The power unit is used to rotate the probe section under the control of the ground control device. A cable connects the ground control device and the underground measurement device for the deployment and retraction of the underground measurement device and the transmission of electrical signals. This system integrates sonar and laser probes into the probe section, combining laser ranging with acoustic ranging. Depending on the measurement medium and distance, it can select laser, sonar, or a combination of both for measurement, solving the problems of limited accuracy and distance in air cavity measurement, and the complexity of measurement procedures in small spaces such as cavity necks. This achieves low-cost, high-efficiency, and high-precision cavity measurement.

Description

Technical Field

[0001] This invention relates to the field of cavity shape measurement technology in underground mining areas, specifically to a sonar-laser integrated cavity measurement system and method. Background Technology

[0002] Obtaining information on the shape and volume of salt cavern gas storage chambers is fundamental to their construction. Currently, sonar technology is mainly used for chamber measurement in salt cavern gas storage both domestically and internationally. Sonar chamber measurement is primarily applied in three aspects during the construction of salt cavern gas storage: measuring the chamber shape during the creation of new wells to adjust the cavitation process in a timely manner based on the measurement results; measuring the shape of existing chambers to screen and modify chambers based on the measurement results; and measuring the chambers after they are put into injection and production operation to understand changes in the chambers and take timely measures to ensure the safety of the salt cavern gas storage. Summary of the Invention

[0003] During their long-term cavity measurement process, the inventors discovered that existing sonar cavity measurement technology has two main drawbacks. First, because sound waves attenuate much more in gases than in liquids, gas cavity measurements are difficult and inaccurate. Furthermore, the measurement distance cannot meet the requirements of large-sized cavities. For example, the most representative sonar instrument on the domestic market, the German SOCON BSF2, has a maximum range of 80 meters in natural gas at pressures of at least 15 MPa, while many domestic cavities have radii exceeding 100 meters. Moreover, as pressure decreases, both measurement accuracy and range further decrease. Second, because sonar experiences significant reflection interference at close range, it cannot directly detect smaller spaces such as the cavity neck. An additional reflector is needed to artificially extend the sound wave signal reflection distance. Therefore, during construction, the instrument must be retrieved to the surface after cavity measurement, separately re-attached, and then lowered back into the well for further measurement, significantly increasing the on-site workload. Especially during gas cavity measurements, the need for blowout preventers and pressurized operations further increases construction risks and costs with each additional retrieval step.

[0004] To address the limitations in measurement accuracy and distance of gas cavities in salt cavern gas storage facilities, as well as the complexity of measurement procedures in small spaces such as cavity necks, this invention proposes an integrated sonar and laser cavity measurement system and method, achieving low-cost, high-efficiency, and high-precision cavity measurement.

[0005] In a first aspect, embodiments of the present invention provide a sonar-laser integrated cavity measurement system, including a ground control device and an underground measurement device;

[0006] The underground measuring device includes a power unit and a probe section. A first sonar probe is installed at the bottom of the probe section, and a second sonar probe and a laser probe are installed on the side. The power unit is used to realize the rotation of the probe section under the control of the ground control device.

[0007] The ground control device is also used to receive electrical signals detected by the underground measuring device;

[0008] A cable connects the ground control device and the underground measuring device, and the cable is used to enable the underground measuring device to be deployed and retracted and to transmit electrical signals.

[0009] In some embodiments, the power unit includes a motor and a crank arm, the crank arm being fixedly connected to the probe section;

[0010] The ground control device is used to control the rotation of the motor to achieve the rotation of the crank arm and the probe section.

[0011] In some embodiments, the probe section is detachably connected to the curved arm.

[0012] In some embodiments, the laser probe is mounted on the upper part of the side of the probe segment, and the second sonar probe is mounted on the lower part.

[0013] In some embodiments, the underground measuring device further includes an orientation and stabilization unit for stabilizing the underground measuring device and determining the measurement orientation of the probe in the probe section.

[0014] In some embodiments, the underground measuring device further includes an auxiliary measuring unit for measuring at least one of temperature, pressure, magnetic positioning, and natural gamma.

[0015] Secondly, embodiments of the present invention provide a sonar-laser integrated cavity measurement system, including any of the above-mentioned sonar-laser integrated cavity measurement systems, for measuring underground cavities.

[0016] Thirdly, embodiments of the present invention provide a sonar-laser integrated cavity measurement method for salt cavern gas storage, including measuring the salt cavern gas storage using a sonar-laser integrated cavity measurement system, wherein the sonar-laser integrated cavity measurement system is any of the aforementioned sonar-laser integrated cavity measurement systems.

[0017] In some embodiments, measuring a salt cavern gas storage tank using a sonar-laser integrated cavity measurement system includes performing at least one of the following:

[0018] Using the laser probe of the sonar-laser integrated cavity measurement system, the portion of the salt cavern gas storage cavity with a radius smaller than a first set radius is measured.

[0019] Using the laser probe of the sonar-laser integrated cavity measurement system, the gas-containing portion of the salt cavern gas storage cavity is measured;

[0020] Using the second sonar probe of the sonar-laser integrated cavity measurement system, the brine-containing portion of the salt cavern gas storage cavity with a radius not less than the first set radius is measured.

[0021] The bottom position of the salt cavern gas storage cavity was detected using the first sonar probe of the sonar-laser integrated cavity measurement system.

[0022] The first sonar probe of the sonar-laser integrated cavity measurement system was used to detect the gas-water interface position in the salt cavern gas storage cavity.

[0023] In some embodiments, if the cavity of the salt cavern gas storage is a brine cavity, the measurement of the salt cavern gas storage using a sonar-laser integrated cavity measurement system includes:

[0024] Using the ground control device of the sonar-laser integrated cavity measurement system, the first sonar probe and the laser probe are turned on, and the radius of the salt cavern gas storage cavity is detected by the laser probe until the currently detected radius is not less than the first set radius.

[0025] The ground control device shuts down the laser probe and turns on the second sonar probe to continue the radius detection of the salt cavern gas storage cavity until the bottom of the cavity is detected. The bottom position is determined based on the detection data of the first sonar probe.

[0026] In some embodiments, if the cavity of the salt cavern gas storage is a gas cavity, the measurement of the salt cavern gas storage using a sonar-laser integrated cavity measurement system includes:

[0027] Using the ground control device of the sonar-laser integrated cavity measurement system, the first sonar probe and the laser probe are turned on. The laser probe is used to start the radius detection of the salt cavern gas storage cavity until the bottom position of the cavity is detected. The bottom position is determined based on the detection data of the first sonar probe.

[0028] In some embodiments, if the cavity of the salt cavern gas storage is a gas cavity with brine at the bottom, the measurement of the salt cavern gas storage using a sonar-laser integrated cavity measurement system includes:

[0029] Using the ground control device of the sonar-laser integrated cavity measurement system, the first sonar probe and the laser probe are turned on. The laser probe is used to start the radius detection of the salt cavern gas storage cavity until the gas-water interface position of the cavity is detected. The gas-water interface position is determined based on the detection data of the first sonar probe.

[0030] The ground control device shuts down the laser probe and turns on the second sonar probe to continue the radius detection of the salt cavern gas storage cavity until the bottom of the cavity is detected. The bottom position is determined based on the detection data of the first sonar probe.

[0031] The beneficial effects of the above-described technical solutions provided in the embodiments of the present invention include at least the following:

[0032] (1) The sonar-laser integrated cavity measurement system provided in this embodiment of the invention has a probe section of its underground measuring device, with a first sonar probe installed at the bottom and a second sonar probe and a laser probe installed on the side. This system integrates both sonar and laser probes into the probe section, combining laser ranging with acoustic ranging. Depending on the measurement medium and distance, it can select laser, sonar, or a combination of both for measurement, solving the problems of limited accuracy and distance in air cavity measurement and the complexity of measurement procedures in small spaces such as cavity necks, thus achieving low-cost, high-efficiency, and high-precision cavity measurement.

[0033] (2) The sonar-laser integrated cavity measurement system provided in this embodiment of the invention has a first sonar probe installed at the bottom of the probe section of the underground measurement device, which can be used for the detection of the bottom of the cavity and the gas-water interface.

[0034] (3) The sonar-laser integrated cavity measurement method for salt cavern gas storage provided in this embodiment of the invention, if the cavity of the salt cavern gas storage is a brine cavity, uses the ground control device of the sonar-laser integrated cavity measurement system to open the first sonar probe and the laser probe, and uses the laser probe to start the radius detection of the salt cavern gas storage cavity until the currently detected radius is not less than the first set radius; the ground control device closes the laser probe and opens the second sonar probe to continue the radius detection of the salt cavern gas storage cavity until the bottom position of the cavity is detected, and the bottom position is determined according to the detection data of the first sonar probe. Using laser measurement in the neck area of ​​the cavity solves the problem of complex sonar measurement procedures in small spaces; switching from laser measurement to sonar measurement to continue the measurement of other areas makes the measurement accuracy of the brine cavity higher.

[0035] (4) The sonar-laser integrated cavity measurement method for salt cavern gas storage provided in this embodiment of the invention, if the cavity of the salt cavern gas storage is a gas cavity, uses the ground control device of the sonar-laser integrated cavity measurement system to open the first sonar probe and the laser probe, and uses the laser probe to start the radius detection of the cavity of the salt cavern gas storage until the bottom position of the cavity is detected. The bottom position is determined based on the detection data of the first sonar probe. Laser measurement improves the measurement accuracy of the gas cavity and solves the problem of complex sonar measurement procedures in small spaces.

[0036] (5) The sonar-laser integrated cavity measurement method for salt cavern gas storage provided in this embodiment of the invention, if the cavity of the salt cavern gas storage is a gas cavity containing brine at the bottom, the ground control device of the sonar-laser integrated cavity measurement system opens the first sonar probe and the laser probe, and uses the laser probe to start the radius detection of the salt cavern gas storage cavity until the gas-water interface position of the cavity is detected. The gas-water interface position is determined according to the detection data of the first sonar probe; the ground control device closes the laser probe and opens the second sonar probe to continue the radius detection of the salt cavern gas storage cavity until the bottom position of the cavity is detected. The bottom position is determined according to the detection data of the first sonar probe. Using laser measurement in the neck area of ​​the cavity solves the problem of complex sonar measurement procedures in small spaces; continuing laser measurement until the gas-water interface is reached, and then switching the laser measurement to sonar measurement improves the cavity measurement accuracy.

[0037] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the written description, claims, and drawings.

[0038] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0039] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0040] Figure 1 This is a schematic diagram of the underground measuring device structure of the sonar-laser integrated cavity measuring system in Embodiment 1 of the present invention;

[0041] Figure 2 This is a flowchart illustrating the specific implementation of the integrated sonar and laser cavity measurement method for salt cavern gas storage in Embodiment 2 of the present invention.

[0042] Figure 3 This is a schematic diagram of air cavity measurement in Embodiment 3 of the present invention;

[0043] Figure 4 This is a schematic diagram of the measurement of the air cavity containing brine at the bottom in Embodiment 4 of the present invention;

[0044] Figure 5 This is a flowchart illustrating the specific implementation of the integrated sonar and laser cavity measurement method for salt cavern gas storage in Embodiment 4 of the present invention. Detailed Implementation

[0045] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0046] It should be understood that the terminology used in this invention is merely for describing particular embodiments and is not intended to limit the invention. Furthermore, with respect to numerical ranges in this invention, it should be understood that each intermediate value between the upper and lower limits of the range is also specifically disclosed. Every smaller range between any stated value or intermediate value within a stated range, and any other stated value or intermediate value within said range, is also included in this invention. The upper and lower limits of these smaller ranges may be independently included or excluded from the range.

[0047] Unless otherwise stated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. While only preferred methods and materials have been described herein, any methods and materials similar or equivalent to those described herein may be used in the implementation or testing of this invention. All references to this specification are incorporated by way of citation to disclose and describe methods and / or materials associated with those references. In the event of any conflict with any incorporated reference, the content of this specification shall prevail.

[0048] In the description of this invention, it should be noted that the terms "comprising", "including", "having", "containing", etc., are all open-ended terms, meaning that they include but are not limited to.

[0049] Example 1

[0050] Embodiment 1 of the present invention provides a sonar-laser integrated cavity measurement system, including a ground control device and an underground measurement device.

[0051] Reference Figure 1 The diagram shows the structure of the underground measuring device. The device includes a power unit 1 and a probe section 2, with a first sonar probe mounted at the bottom of the probe section. Figure 1 (Not shown in the image), a second sonar probe 21 and a laser probe 22 are mounted on the side.

[0052] The first sonar probe, the second sonar probe, and the laser probe can all be mounted on a single short section; alternatively, the laser probe can be mounted on a separate short section, while the first and second sonar probes are mounted on another short section.

[0053] The second installation method mentioned above always involves a laser probe mounted on the upper side of the probe section and a second sonar probe mounted on the lower side. The first installation method can also have the laser probe on top and the second sonar probe on the bottom, which is easier to manufacture and install.

[0054] The entire probe section is designed to be replaceable, and different probe sections can be designed and installed according to measurement requirements.

[0055] The ground control device is used to receive electrical signals detected by the underground measuring device and convert the electrical signals into digital signals.

[0056] In some embodiments, the underground measuring device further includes a communication connection unit 3. The communication connection unit 3 includes a cable head and a cable.

[0057] The cable connects the ground control device and the underground measuring device, and is used to enable the underground measuring device to be deployed and retrieved, as well as to transmit electrical signals.

[0058] The power unit is used to rotate the probe subsection under the control of the ground control device.

[0059] In some embodiments, the power unit includes a motor and a crank arm, the crank arm being fixedly connected to the probe section; a ground control device is used to control the rotation of the motor to achieve the rotation of the crank arm and the probe section.

[0060] The articulated arm module allows the probe to bend from 0° to ±90° to achieve probe tilt measurement.

[0061] The probe section is detachably connected to the curved arm.

[0062] The sonar-laser integrated cavity measurement system provided in Embodiment 1 of this invention has a probe section for its underground measuring device. A first sonar probe is installed at the bottom, and a second sonar probe and a laser probe are installed on the side. This system integrates both sonar and laser probes into the probe section, combining laser ranging with acoustic ranging. Depending on the measurement medium and distance, it can select laser, sonar, or a combination of both for measurement. This solves the problems of limited accuracy and distance in air cavity measurements, and the complexity of measurement procedures in small spaces such as cavity necks, achieving low-cost, high-efficiency, and high-precision cavity measurement.

[0063] The sonar-laser integrated cavity measurement system provided in Embodiment 1 of the present invention has a probe section of its underground measurement device with a first sonar probe installed at the bottom, which can be used for detection at the bottom of the cavity and the gas-water interface.

[0064] In some embodiments, the aforementioned sonar-laser integrated cavity measurement system further includes an auxiliary measurement unit 4 for measuring at least one parameter among temperature, pressure, magnetic positioning, and natural gamma. This unit can be selected based on measurement requirements.

[0065] In some embodiments, the sonar-laser integrated cavity measurement system further includes an orientation and stabilization unit 5 for stabilizing the underground measurement device and determining the measurement orientation of the probe in the probe subsection.

[0066] Based on the inventive concept of the present invention, embodiments of the present invention also provide a sonar-laser integrated cavity measurement method, including measuring underground cavities using any of the above-mentioned sonar-laser integrated cavity measurement systems.

[0067] Based on the inventive concept of the present invention, the embodiments of the present invention also provide a sonar-laser integrated cavity measurement method for salt cavern gas storage, including measuring the salt cavern gas storage using a sonar-laser integrated cavity measurement system, wherein the sonar-laser integrated cavity measurement system is any of the above-mentioned sonar-laser integrated cavity measurement systems.

[0068] Specifically, using a sonar-laser integrated cavity measurement system to measure salt cavern gas storage tanks includes performing at least one of the following:

[0069] Using the laser probe of the sonar-laser integrated cavity measurement system, the portion of the salt cavern gas storage cavity with a radius smaller than a first set radius is measured.

[0070] Using the laser probe of the sonar-laser integrated cavity measurement system, the gas-containing portion of the salt cavern gas storage cavity is measured;

[0071] Using the second sonar probe of the sonar-laser integrated cavity measurement system, the brine-containing portion of the salt cavern gas storage cavity with a radius not less than the first set radius is measured.

[0072] The bottom position of the salt cavern gas storage cavity was detected using the first sonar probe of the sonar-laser integrated cavity measurement system.

[0073] The first sonar probe of the sonar-laser integrated cavity measurement system was used to detect the gas-water interface position in the salt cavern gas storage cavity.

[0074] Example 2

[0075] Embodiment 2 of the present invention provides a specific implementation of an integrated sonar-laser cavity measurement method for salt cavern gas storage. The cavity of the salt cavern gas storage is a brine cavity. See [link to documentation]. Figure 2 As shown, it includes the following steps:

[0076] Step S21: Using the ground control device of the sonar-laser integrated cavity measurement system, turn on the first sonar probe and the laser probe, and use the laser probe to start the radius detection of the salt cavern gas storage cavity until the currently detected radius is not less than the first set radius.

[0077] The initial radius can be 0.5 meters.

[0078] It is recommended to use a 532nm wavelength ranging laser for the laser probe, as it has better penetration in brine.

[0079] Step S22: Turn off the laser probe and turn on the second sonar probe through the ground control device to continue the radius detection of the salt cavern gas storage cavity until the bottom of the cavity is detected. The bottom position is determined based on the detection data of the first sonar probe.

[0080] Using laser measurement in the neck region of the cavity solves the problem of complex sonar measurement procedures in small spaces; switching from laser measurement to sonar measurement to continue measurement in other areas makes the measurement accuracy of the brine cavity higher.

[0081] Example 3

[0082] Embodiment 3 of the present invention provides a specific implementation of an integrated sonar-laser cavity measurement method for salt cavern gas storage. The cavity of the salt cavern gas storage is a gas cavity. See the measurement schematic diagram below. Figure 3 As shown.

[0083] The measurement steps include: using the ground control device of the sonar-laser integrated cavity measurement system, turning on the first sonar probe and the laser probe, and using the laser probe to start the radius detection of the salt cavern gas storage cavity until the bottom position of the cavity is detected. The bottom position is determined based on the detection data of the first sonar probe.

[0084] The laser probe should be a ranging laser that is not within the absorption wavelength range of the stored gas.

[0085] Laser measurement improves the measurement accuracy of air cavities and solves the problem of complex sonar measurement procedures in small spaces.

[0086] Example 4

[0087] Embodiment 4 of this invention provides a specific implementation of a sonar-laser integrated cavity measurement method for salt cavern gas storage. The cavity of the salt cavern gas storage is a gas cavity with brine at the bottom. See the measurement schematic diagram below. Figure 4 As shown. See the measurement steps. Figure 5 As shown, it includes:

[0088] Step S51: Using the ground control device of the sonar-laser integrated cavity measurement system, turn on the first sonar probe and the laser probe, and use the laser probe to start the radius detection of the salt cavern gas storage cavity until the gas-water interface position of the cavity is detected. The gas-water interface position is determined based on the detection data of the first sonar probe.

[0089] Step S52: Turn off the laser probe and turn on the second sonar probe through the ground control device to continue the radius detection of the salt cavern gas storage cavity until the bottom of the cavity is detected. The bottom position is determined based on the detection data of the first sonar probe.

[0090] Laser measurement was used in the neck region of the cavity, which solved the problem of complex sonar measurement procedures in small spaces. Laser measurement continued until the gas-water interface, and then the laser measurement was switched to sonar measurement, which improved the measurement accuracy of the cavity.

[0091] The sonar-laser integrated cavity measurement system in Embodiments 2-4 above is the same as the sonar-laser integrated cavity measurement system introduced in Embodiment 1. It uses sonar mode for measurement, and the probe is placed below the liquid surface during the measurement process. In addition, the radius measurement of the cavity at different depths is achieved by the extension and retraction of the cable. For parts that cannot be measured horizontally, the short section of the probe is rotated by controlling the rotation of the crank arm, thereby achieving tilt measurement.

[0092] It should be understood that the specific order or hierarchy of steps in the disclosed process is an example of an exemplary method. Based on design preferences, it should be understood that the specific order or hierarchy of steps in the process may be rearranged without departing from the scope of this disclosure. The appended method claims provide elements of various steps in an exemplary order and are not intended to limit the scope to the specific order or hierarchy described.

[0093] In the detailed description above, various features are combined together in a single embodiment to simplify this disclosure. This approach to disclosure should not be construed as reflecting an intention that embodiments of the claimed subject matter require more features than are explicitly stated in each claim. Rather, as reflected in the appended claims, the invention is presented with fewer features than all of the features in a single disclosed embodiment. Therefore, the appended claims are hereby explicitly incorporated into the detailed description, with each claim representing a separate preferred embodiment of the invention.

[0094] The foregoing description includes examples of one or more embodiments. It is certainly impossible to describe all possible combinations of components or methods in order to describe the above embodiments, but those skilled in the art will recognize that further combinations and arrangements of the various embodiments are possible. Therefore, the embodiments described herein are intended to cover all such changes, modifications, and variations that fall within the scope of the appended claims. Furthermore, the term “comprising” as used in the specification or claims is interpreted in a manner similar to the term “including,” as it is understood when used as a conjunction in the claims. Additionally, the use of any term “or” in the specification of the claims is intended to mean “non-exclusive or.” The terms “first” and “second” are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

Claims

1. A sonar-laser integrated cavity measurement system, characterized in that, Includes ground control devices and underground measuring devices; The underground measuring device includes a power unit and a probe section. A first sonar probe is installed at the bottom of the probe section, and a second sonar probe and a laser probe are installed on the side. The power unit is used to realize the rotation of the probe section under the control of the ground control device. The ground control device is also used to receive electrical signals detected by the underground measuring device; A cable connects the ground control device and the underground measuring device, and the cable is used to realize the deployment and reception of the underground measuring device and the transmission of electrical signals. The power unit includes a motor and a curved arm, and the curved arm is fixedly connected to the probe section. The ground control device is used to control the rotation of the motor to achieve the rotation of the crank arm and the probe section.

2. The system as described in claim 1, characterized in that, The probe section is detachably connected to the curved arm.

3. The system as described in claim 1, characterized in that, The laser probe is mounted on the upper side of the probe section, and the second sonar probe is mounted on the lower side.

4. The system as described in claim 1, characterized in that, The underground measuring device also includes an orientation and stabilization unit for stabilizing the underground measuring device and determining the measurement orientation of the probe in the probe section.

5. The system as described in claim 1, characterized in that, The underground measuring device also includes an auxiliary measuring unit for measuring at least one of the following parameters: temperature, pressure, magnetic positioning, and natural gamma.

6. A method for integrating sonar and laser cavity measurement, characterized in that, This includes using the sonar-laser integrated cavity measurement system as described in any one of claims 1 to 5 to measure underground cavities.

7. A method for integrating sonar and laser cavity measurement in a salt cavern gas storage facility, characterized in that, This includes using a sonar-laser integrated cavity measurement system to measure a salt cavern gas storage tank, wherein the sonar-laser integrated cavity measurement system is the sonar-laser integrated cavity measurement system described in any one of claims 1 to 5.

8. The method as described in claim 7, characterized in that, The measurement of a salt cavern gas storage facility using a sonar-laser integrated cavity measurement system includes performing at least one of the following: Using the laser probe of the sonar-laser integrated cavity measurement system, the portion of the salt cavern gas storage cavity with a radius smaller than a first set radius is measured. Using the laser probe of the sonar-laser integrated cavity measurement system, the gas-containing portion of the salt cavern gas storage cavity is measured; Using the second sonar probe of the sonar-laser integrated cavity measurement system, the brine-containing portion of the salt cavern gas storage cavity with a radius not less than the first set radius is measured. The bottom position of the salt cavern gas storage cavity was detected using the first sonar probe of the sonar-laser integrated cavity measurement system. The first sonar probe of the sonar-laser integrated cavity measurement system was used to detect the gas-water interface position in the salt cavern gas storage cavity.

9. The method as described in claim 7, characterized in that, If the cavity of the salt cavern gas storage is a brine cavity, the measurement of the salt cavern gas storage using a sonar-laser integrated cavity measurement system includes: Using the ground control device of the sonar-laser integrated cavity measurement system, the first sonar probe and the laser probe are turned on, and the radius of the salt cavern gas storage cavity is detected by the laser probe until the currently detected radius is not less than the first set radius. The ground control device shuts down the laser probe and turns on the second sonar probe to continue the radius detection of the salt cavern gas storage cavity until the bottom of the cavity is detected. The bottom position is determined based on the detection data of the first sonar probe.

10. The method as described in claim 7, characterized in that, If the cavity of the salt cavern gas storage is a gas cavity, the measurement of the salt cavern gas storage using the integrated sonar-laser cavity measurement system includes: Using the ground control device of the sonar-laser integrated cavity measurement system, the first sonar probe and the laser probe are turned on. The laser probe is used to start the radius detection of the salt cavern gas storage cavity until the bottom position of the cavity is detected. The bottom position is determined based on the detection data of the first sonar probe.

11. The method as described in claim 7, characterized in that, If the cavity of the salt cavern gas storage is a gas cavity with brine at the bottom, the measurement of the salt cavern gas storage using a sonar-laser integrated cavity measurement system includes: Using the ground control device of the sonar-laser integrated cavity measurement system, the first sonar probe and the laser probe are turned on. The laser probe is used to start the radius detection of the salt cavern gas storage cavity until the gas-water interface position of the cavity is detected. The gas-water interface position is determined based on the detection data of the first sonar probe. The ground control device shuts down the laser probe and turns on the second sonar probe to continue the radius detection of the salt cavern gas storage cavity until the bottom of the cavity is detected. The bottom position is determined based on the detection data of the first sonar probe.

Images