Seabed-based multipoint in-situ long-term observing system

An observation system and seabed-based technology, applied in the direction of measuring devices, geophysical measurements, underground/near-surface gas detection/exploration, etc., can solve the problems of insufficient long-term observation of oil and natural gas hydrate leakage or decomposition process, and achieve Guaranteed intuitiveness and reliability, improved response time, and high-resolution effects

Active Publication Date: 2017-06-13
QINGDAO INST OF MARINE GEOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But obviously, the current level of equipment is not enough to carry out long-term observation of oil and gas hydrate leakage or decomposition process

Method used

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  • Seabed-based multipoint in-situ long-term observing system
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  • Seabed-based multipoint in-situ long-term observing system

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Experimental program
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Effect test

Embodiment 1

[0039] Such as figure 1 The shown multi-point in-situ long-term observation system on the seabed includes platform frame 11, floating body material 6, underwater acoustic communication machine 5, beacon machine 1, monitoring cabin 2, control cabin 7, release control cabin 8, and central turret 10. Counterweight 9 and microelectrode detection system 3. The main body of the platform frame 11 is in the shape of a cylinder and has four layers from top to bottom.

[0040] The first layer installs the floating body material 6, the underwater acoustic communication machine 5, the beacon machine 1 and the suspension ring 4, wherein the floating body material 6 is designed to be divided into six equal parts for ease of installation, and is placed in the frame. The underwater acoustic communication machine 5 and the beacon machine 1 and suspension ring 4 are all arranged on the top of platform frame 11.

[0041] The second layer is equipped with monitoring cabin 2, control cabin 7 and...

Embodiment 2

[0053] Different from Embodiment 1, the microelectrode detection system 3 includes a base 23 and a static penetration probe 25 and eight microelectrodes 24 arranged on the base 23, and the static penetration probe 25 is arranged on the base 23. In the center, eight microelectrodes 24 are evenly arranged around the static penetration probe 25, and the length of the static penetration probe 25 is 5 cm longer than the length of the microelectrode 24, such as Figure 3-4 shown.

[0054] The static penetration probe 25 and the eight microelectrodes 24 are connected to the data acquisition unit respectively, and the data acquisition unit is connected to the general control system, and the general control system completes the data collection of the static penetration probe 25 and the eight microelectrodes 24 .

[0055] Before the microelectrode detection system 3 is assembled, repeated destructive experiments are carried out on each microelectrode mold to obtain the ultimate destruct...

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Abstract

The invention relates to a seabed-based multipoint in-situ long-term observing system which comprises a platform frame, a floating body material, an underwater sound communication apparatus, a beacon receiver, a monitoring cabin, a control cabin, a release control cabin, a central rotary table, a balancing weight and a microelectrode probing system. A main body of the platform frame is of a cylindrical shape and is divided into four layers from top to bottom; the floating body material, the underwater sound communication apparatus and the beacon receiver are mounted in the first layer, the monitoring cabin, the control cabin and the release control cabin are mounted in the second layer, the central rotary table is mounted in the third layer, and the balancing weight is mounted in the fourth layer. The seabed-based multipoint in-situ long-term observing system provided by the invention effectively realizes a multipoint precise positioning function so as to acquire data of a plurality of probing points in a probing region as required. Finally, spatial distribution information of an active diffusion field can be analyzed to provide an important data support for marine environment effect estimation of oil spill and aquo-complex decomposing process, thereby providing support and service for key projects such as submarine oil extraction and pilot production of natural gas hydrates.

Description

technical field [0001] The invention relates to a seabed-based multi-point in-situ long-term observation system, which belongs to the technical field of ocean observation. Background technique [0002] Marine resources are an important part of national marine rights and interests, and competition for resources such as deep-sea oil and gas hydrate has become the focus of international energy. During the exploitation of seabed natural gas hydrate, due to factors such as temperature, pressure, and external disturbances, the hydrate spontaneously decomposes, producing such as CH 4 、H 2 、H 2 S, O 2 And other by-products, which may seriously affect the stability of seabed, marine engineering infrastructure, marine and atmospheric environment. Therefore, effective and comprehensive long-term monitoring of the natural gas hydrate exploitation process plays an important role in promoting the exploration and exploitation of hydrate resources and the investigation and evaluation of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/00
CPCG01N27/00G01V1/3852G01V9/007
Inventor 郭磊孙治雷叶思源王利波曹红耿威刘莉萍
Owner QINGDAO INST OF MARINE GEOLOGY
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