CN110793656A - Method for monitoring temperature and pressure of volcano of seabed mud - Google Patents
Method for monitoring temperature and pressure of volcano of seabed mud Download PDFInfo
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- CN110793656A CN110793656A CN201911014438.4A CN201911014438A CN110793656A CN 110793656 A CN110793656 A CN 110793656A CN 201911014438 A CN201911014438 A CN 201911014438A CN 110793656 A CN110793656 A CN 110793656A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/14—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K3/00—Thermometers giving results other than momentary value of temperature
- G01K3/08—Thermometers giving results other than momentary value of temperature giving differences of values; giving differentiated values
- G01K3/14—Thermometers giving results other than momentary value of temperature giving differences of values; giving differentiated values in respect of space
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L15/00—Devices or apparatus for measuring two or more fluid pressure values simultaneously
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
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Abstract
The invention relates to a method for monitoring temperature and pressure of volcano of seabed mud, which comprises the following steps: step 1: arranging a plurality of columnar bodies which are internally provided with a temperature sensor, a pressure sensor, a positioning device and a wireless transmission device on the submarine mud volcano in a distributed manner, wherein the columnar bodies are arranged in an array manner to form a measurement array; step 2: placing a wireless receiving device in a stable seabed area near a volcano of the seabed mud, wherein the wireless receiving device is in communication connection with a wireless transmission device; and step 3: after the arrangement is finished, the temperature, the pressure and the position are measured for a plurality of time, the wireless receiving device stores the obtained data locally, and after the monitoring is finished, the wireless receiving device and the columnar body are recovered, so that the measured temperature, the measured pressure and the measured position data are obtained, and the monitoring of the temperature and the pressure of the volcanic submarine mud is finished. The method can effectively monitor the temperature and the pressure of the submarine mud volcano and the change of the temperature and the pressure, so that the motion characteristics of mud flow and the growth characteristics of the submarine mud volcano can be obtained.
Description
Technical Field
The invention relates to the technical field of monitoring of activity of submarine mud volcanoes, in particular to a method for monitoring temperature and pressure of submarine mud volcanoes.
Background
The mud volcano is a ground surface structure formed by upward transporting and spraying mud, water, gas and the like in the deep stratum through channels such as faults, fractures and the like to the ground surface, and is distributed in the sea and on the land. Most of the shapes of the seabed mud volcanoes are dome-shaped, flat-topped and the like, and the volcanoes are accompanied by a large amount of mud, water and gas (sometimes oil) during eruption, and a large amount of heat is transferred to the seabed along with the mud, the water and the gas from deep strata.
The activity condition of the mud volcano can be reflected by the earth temperature gradient, the earth temperature gradient refers to the change of temperature of unit depth, the higher the earth temperature gradient is, the larger the heat flux is, the more active the mud volcano is, and the earth temperature gradient of the mud volcano can be gradually reduced from the mud volcano eruption center to the peripheral outer edge of the mud volcano under the common condition. However, the activity of the volcano of the mud on the sea bottom has time uncertainty and periodicity characteristics, so the eruption of the mud is intermittent, the flowing mud usually moves upwards from the deep stratum to the sea bottom, a mud flow is formed on the surface of the sea bottom along with the flow of the terrain, and the newly erupted mud pushes the previously erupted mud to move outwards or covers the previously erupted mud. Although the old and new mud can be identified by different acoustic (such as multi-beam sonar) back reflection intensities, the changes of the overall temperature and pressure field of the mud volcano caused by mud, water and air eruption, the migration situation of the mud and the growth characteristics of the mud volcano are still to be researched. At present, no method and device suitable for monitoring the temperature and pressure of the volcanic sediment and the corresponding dynamic change of the volcanic sediment exist.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a method for monitoring the temperature and the pressure of the volcano of the seabed mud, which can solve the problems of monitoring the temperature and the pressure of the volcano of the seabed mud and dynamic change;
the technical scheme for realizing the purpose of the invention is as follows: a method for monitoring temperature and pressure of volcano of seabed mud comprises the following steps:
step 1: the method comprises the following steps that a plurality of columnar bodies provided with temperature sensors, pressure sensors, positioning devices and wireless transmission devices are distributed on a submarine mud volcano, the columnar bodies are arranged in an array to form a measurement array, the temperature sensors, the pressure sensors and the positioning devices are all electrically connected with the wireless transmission devices, the temperature sensors are used for measuring temperature, the pressure sensors are used for measuring pressure, and the positioning devices are used for measuring position information of the temperature sensors and the pressure sensors;
step 2: placing a wireless receiving device in a stable seabed area near a volcano of the seabed mud, wherein the wireless receiving device is used for receiving temperature, pressure and position data sent by the wireless transmitting device;
and step 3: after the cylindrical body and the wireless receiving device are uniformly arranged, the temperature, the pressure and the position are measured, the measurement lasts for a plurality of times until the monitoring is finished, the wireless receiving device stores the received temperature, pressure and position data in local,
after the monitoring is completed, the wireless receiving device and the columnar body are recovered, so that measured temperature, pressure and position data are obtained, and the monitoring of the temperature and the pressure of the seabed mud volcano is completed.
Furthermore, one temperature sensor and one pressure sensor are combined into one group and are arranged at the same position of the cylindrical body, the temperature sensors and the pressure sensors of different groups are arranged on the cylindrical body at equal intervals, and each group of temperature sensor and pressure sensor is provided with a corresponding positioning device.
Further, the positioning device is arranged at the top of the columnar body.
Further, the position information of the temperature sensor and the pressure sensor measured by the positioning device is the position information measured by taking the wireless receiving device as a reference point.
Further, the wireless transmission device and the wireless receiving device adopt USBL communication.
Further, the columnar body is vertically arranged on the submarine mud volcano.
The invention has the beneficial effects that: the method can effectively monitor the temperature and the pressure of the submarine mud volcano and the change of the temperature and the pressure, so that the motion characteristics of mud flow and the growth characteristics of the submarine mud volcano can be obtained.
Drawings
FIG. 1 is a schematic flow diagram of the present invention;
fig. 2 is a schematic layout diagram of a cylindrical body and a wireless receiving device.
Detailed Description
The invention is further described with reference to the accompanying drawings and the specific embodiments.
As shown in fig. 1 to 2, a method for monitoring temperature and pressure of volcano of sea mud comprises the following steps:
step 1: the method comprises the following steps that cylindrical bodies provided with temperature sensors, pressure sensors, positioning devices and wireless transmission devices are vertically arranged on the seabed mud volcanoes, a plurality of cylindrical bodies are distributed on the seabed mud volcanoes, and the cylindrical bodies are arranged in an array mode to form a measurement array. The columnar body is provided with at least one positioning device, and if only one positioning device is arranged, the positioning device is preferentially arranged at the top of the columnar body.
One temperature sensor and one pressure sensor are combined into one group and are arranged at the same position of the cylindrical body, and the temperature sensors and the pressure sensors of different groups are arranged on the cylindrical body at equal intervals. When a plurality of positioning devices are provided, preferably, one corresponding positioning device is arranged on each group of temperature sensor and pressure sensor, that is, one positioning device is arranged at the same position of each group of temperature sensor and pressure sensor, so that the position information (at least including the height from the sea bottom) of each group of temperature sensor and pressure sensor can be determined, and the position information reflects the temperature and pressure (pressure) of the depth of the measuring point, so that different temperatures and pressures at different depths can be distinguished, and the three-dimensional space temperature, pressure and position information of the bottom sediment volcano can be obtained.
In the step, the columnar bodies and the measurement array formed by the columnar bodies are equivalent to an in-situ observation device, and the temperature, the pressure and the dynamic change of different areas of the submarine mud volcano can be observed for a long time, so that a three-dimensional temperature pressure field and the dynamic change of the mud volcano are obtained. The columnar bodies can be arranged on the submarine mud volcano through submarine operation equipment such as shipborne hoisting cables or submarine mechanical equipment (ROV, AUV) and the like to form a measurement array of the columnar bodies. The spraying of the seabed mud volcano has a periodic characteristic, the mud flow in the spraying process pushes the columnar bodies to move outwards, a large amount of heat is generated and is brought to the surface of the seabed, the columnar bodies are positioned at different positions of the seabed mud volcano along with the movement of the mud flow, and the temperature and the pressure measured by the columnar bodies corresponding to different positions are different due to the different temperatures of the sprayed new mud flow and the sprayed old mud flow, so that the information of the size, the rising speed, the horizontal movement speed and the like of the mud flow can be deduced according to the temperature.
The wireless transmission device is arranged at the top of the columnar body, and the temperature sensor, the pressure sensor and the positioning device of each group are electrically connected with the wireless transmission device and send the measured temperature, pressure and position information to the wireless transmission device.
Step 2: the wireless receiving device is arranged in a stable seabed area near a seabed mud volcano through a submarine operation device such as a shipborne suspension cable or submarine mechanical equipment (ROV, AUV) and the like, and is ensured to be in communication connection with the wireless transmission device on the columnar body so as to receive measurement data sent by the wireless transmission device, wherein the measurement data comprises temperature, pressure and position information, and the wireless receiving device and the wireless transmission device can adopt USBL communication. The eruption of mud volcanoes cannot affect the wireless receiving device, so the position of the wireless receiving device is fixed.
The positioning device on the column measures the position information of the corresponding temperature sensor and pressure sensor, and usually the position information measured by using the wireless receiving device as a reference point (reference point), so that the accurate position information of each temperature sensor and pressure sensor on the column can be accurately measured.
In the case where the columnar bodies and the wireless receiving devices are arranged on the seabed, as shown in fig. 2, the columnar bodies constitute a measurement array, and the wireless receiving devices are arranged in a stable seabed region near the volcano of the seabed mud.
And step 3: when the cylindrical body and the wireless receiving device are uniformly arranged, the temperature, the pressure and the position are measured, monitoring is carried out for a plurality of time, the measured temperature, the measured pressure and the measured position data are sent to the wireless receiving device through the wireless transmission device, and the wireless receiving device receives the data and stores the data locally. After monitoring is completed, the wireless receiving device and the columnar body are recovered, so that measured temperature, pressure and position data are obtained, and monitoring of the temperature, the pressure and the position of the submarine mud volcano is realized.
After the temperature, pressure and position data of the submarine mud volcano are obtained, the mud flow motion characteristics of the submarine mud volcano and the growth mode of the submarine mud volcano can be calculated through experimental processing.
The embodiments disclosed in this description are only an exemplification of the single-sided characteristics of the invention, and the scope of protection of the invention is not limited to these embodiments, and any other functionally equivalent embodiments fall within the scope of protection of the invention. Various other changes and modifications to the above-described embodiments and concepts will become apparent to those skilled in the art from the above description, and all such changes and modifications are intended to be included within the scope of the present invention as defined in the appended claims.
Claims (6)
1. A method for monitoring temperature and pressure of volcano of seabed mud is characterized by comprising the following steps:
step 1: the method comprises the following steps that a plurality of columnar bodies provided with temperature sensors, pressure sensors, positioning devices and wireless transmission devices are distributed on a submarine mud volcano, the columnar bodies are arranged in an array to form a measurement array, the temperature sensors, the pressure sensors and the positioning devices are all electrically connected with the wireless transmission devices, the temperature sensors are used for measuring temperature, the pressure sensors are used for measuring pressure, and the positioning devices are used for measuring position information of the temperature sensors and the pressure sensors;
step 2: placing a wireless receiving device in a stable seabed area near a volcano of the seabed mud, wherein the wireless receiving device is used for receiving temperature, pressure and position data sent by the wireless transmitting device;
and step 3: after the cylindrical body and the wireless receiving device are uniformly arranged, the temperature, the pressure and the position are measured, the measurement lasts for a plurality of times until the monitoring is finished, the wireless receiving device stores the received temperature, pressure and position data in local,
after the monitoring is completed, the wireless receiving device and the columnar body are recovered, so that measured temperature, pressure and position data are obtained, and the monitoring of the temperature and the pressure of the seabed mud volcano is completed.
2. The method for monitoring the temperature and the pressure of the volcano of the seafloor mud as claimed in claim 1, wherein the positioning device is arranged on the top of the columnar body.
3. The method for monitoring the temperature and the pressure of the volcano mud on the sea bottom according to claim 1, wherein one group of the temperature sensors and one group of the pressure sensors are arranged at the same position of the cylindrical body, the temperature sensors and the pressure sensors of different groups are arranged on the cylindrical body at equal intervals, and each group of the temperature sensors and the pressure sensors is provided with one corresponding positioning device.
4. The method for monitoring the temperature and the pressure of the volcano of the seabed mud as claimed in claim 1 or 3, wherein the position information of the temperature sensor and the pressure sensor measured by the positioning device is the position information measured by taking the wireless receiving device as a reference point.
5. The method for monitoring the temperature and the pressure of the volcano of the seafloor mud as claimed in claim 1, wherein the wireless transmission device and the wireless receiving device adopt USBL communication.
6. The method for monitoring the temperature and the pressure of the submarine mud volcano according to claim 1, wherein the columnar body is vertically arranged on the submarine mud volcano.
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| CN201911014438.4A CN110793656B (en) | 2019-10-23 | 2019-10-23 | Method for monitoring temperature and pressure of volcano of seabed mud |
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| CN201911014438.4A CN110793656B (en) | 2019-10-23 | 2019-10-23 | Method for monitoring temperature and pressure of volcano of seabed mud |
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| CN113340459A (en) * | 2021-04-30 | 2021-09-03 | 海南电网有限责任公司五指山供电局 | Passive wireless temperature measurement system for power equipment |
| CN113607216A (en) * | 2021-08-06 | 2021-11-05 | 广州海洋地质调查局 | Deep-sea mud volcano in-situ monitoring system and method |
| CN114708780A (en) * | 2022-05-12 | 2022-07-05 | 青岛海洋地质研究所 | Physical simulation experiment device and method for volcano formation |
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