Device for measuring in-situ flow rate change of marine cold seep gas seepage

A measuring device, natural gas technology, applied in fixed measuring chambers, etc., to achieve the effect of measuring fluid velocity in a wide range and high sensitivity

Inactive Publication Date: 2011-04-13
GUANGZHOU INST OF GEOCHEMISTRY - CHINESE ACAD OF SCI
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0002] The in-situ flow rate measurement device for submarine cold seep natural gas seepage is a new technology researched and developed abroad in recent years, and there is no relevant report on the in-situ flow rate measurement technology for submarine cold seep natural gas seepage in China

Method used

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  • Device for measuring in-situ flow rate change of marine cold seep gas seepage
  • Device for measuring in-situ flow rate change of marine cold seep gas seepage
  • Device for measuring in-situ flow rate change of marine cold seep gas seepage

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Embodiment

[0025] see Figure 3 to Figure 5 As shown, a measuring device for measuring the in-situ flow rate change of seabed cold seep natural gas seepage includes a fixed frame 4, a leakage tent cover 3 is placed in the fixed frame 4, and the top of the leakage tent cover 3 and the volumetric emptying method The flow measuring instrument 1 is connected, and there is a seepage grid 5 on the side of the leaking tent cover 3 close to the bottom, and a bubble breaking grid 2 is opened on the side of the leaking tent cover 3 close to the volumetric emptying method flow measuring instrument 1; The volume evacuation method flow measuring instrument 1 includes a gas collection chamber 11 communicated with the leaking tent cover 3. The gas collection chamber 11 is respectively provided with a solenoid valve 12 and a liquid level switch 13. The connecting rod 16 connected to the liquid level switch 13 is provided with an upper liquid level sensor probe 14 on the upper part of the connecting rod ...

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Abstract

The invention discloses a device for measuring in-situ flow rate change of marine cold seep gas seepage, which comprises a fixed support, wherein a leaking tent cover is arranged in the fixed support; the top end of the leaking tent cover is communicated with a volume emptying method flowmeter; the side face of the leaking tent cover close to the bottom is provided with a water seepage grid; the side face of the leaking tent cover close to the volume emptying method flowmeter is provided with a bubble breaking grid; the volume emptying method flowmeter comprises a gas collecting chamber communicated with the leaking tent cover; the gas collecting chamber is respectively provided with an electromagnetic valve and a liquid level switch; a connecting rod connected with the liquid level switch is arranged in the gas collecting chamber longitudinally; the upper part of the connecting rod is provided with an upper part liquid level sensor probe, while the lower part is provided with a lower part liquid level sensor probe; and the electromagnetic valve is connected to a control system. The observation device can better continuously observe the flow rate change of fluid in the marine natural gas hydrate leakage area, and can continuously record and store natural gas flow rate change values.

Description

technical field [0001] The invention relates to the technical field of deep-sea exploration and operation, in particular to a measuring device capable of continuously measuring the in-situ flow rate change of seabed cold seep natural gas seepage. Background technique [0002] The in-situ flow rate measurement device for submarine cold seep natural gas seepage is a new technology researched and developed abroad in recent years. There is no relevant report on the in-situ flow rate measurement technology for submarine cold seep natural gas seepage in China. However, international research in this field is in full swing. The United States regards deep-sea technology as a high-tech project prioritized in its marine field. In 1998, Professor Harry Roberts of the Coastal Research Institute of Louisiana State University designed a submarine cold seep The fluid observation device successfully observed the natural gas seepage system of Bush Hill in the Gulf of Mexico. In 1999, the Gu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F11/28
Inventor 邸鹏飞陈庆华陈多福
Owner GUANGZHOU INST OF GEOCHEMISTRY - CHINESE ACAD OF SCI
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