Seabed deposit temperature-pressure in situ measuring instrument and data acquisition method thereof

Abstract

The invention discloses a seabed sediment temperature and pressure in-situ measuring instrument and a data acquisition method thereof. The seabed sediment temperature and pressure in-situ measuring instrument includes a shroud, a variable weight weight, a sealed electronic compartment, a variable length extension rod and a needle-point temperature and pressure probe, a shroud, a weight, and a sealed electronic chamber. The bin, the extension rod, and the temperature and pressure probe are connected sequentially from top to bottom; the shroud is used to connect with a load-bearing head of a winch located on the sea surface; the sealed electronic bin is equipped with an inclinometer, an accelerometer, a communication module, A data acquisition module and a power supply, the data acquisition module is used to transmit the data output by the inclinometer, the accelerometer and the temperature and pressure probe to the data processing equipment on the winch through the communication module; in the seafloor sediments. The invention can solve the problems of poor real-time performance, inability to monitor temperature and pressure continuously for a long time.

Description

technical field [0001] The invention relates to seabed sediment measurement technology. Background technique [0002] The temperature and pressure conditions of seabed sediments are the key factors for hydrate accumulation. Extracting hydrate temperature and pressure field information, whether it is for the study of hydrate stable zones or the prediction of hydrate prospects, has a broad and far-reaching theory and reality. significance. Therefore, it is very important to acquire accurate temperature and pressure data of seabed sediments, which is critical to the research on the in-situ measurement technology of seabed sediment temperature and pressure. [0003] Current temperature and pressure measurement techniques for seabed sediments include: [0004] 1) Routine sampling + laboratory testing method, to carry out relevant geothermal temperature and mechanical measurements; [0005] 2) The geothermal gradient probe is installed on a conventional columnar sampler or stee...

AI Technical Summary

Problems solved by technology

[0014] In order to overcome the deficiencies of the prior art, one of the objectives of the present invention is to provide an in-situ temperature and pressure measuring instrument for seabed sediments, which can solve the problems of poor real-time performance and inability to continuously monitor temperature and pressure for a long time

[0015] The second object of the present invention is to provide a data acquisition method of seabed sediments, which can solve the problem of poor real-time performance

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