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Device for testing methane content of marine sediments

A technology for marine sediment and methane content, applied in the field of testing, can solve problems such as inconvenient operation and inaccurate test results, and achieve the effect of accurate and reliable measurement results

Pending Publication Date: 2018-01-19
GUANGZHOU MARINE GEOLOGICAL SURVEY +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] (1) The test results are not accurate enough;
[0005] (2) The operation is not convenient enough

Method used

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  • Device for testing methane content of marine sediments

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Embodiment Construction

[0019] In the following, the present invention will be further described in conjunction with the drawings and specific implementations. It should be noted that, provided that there is no conflict, the following embodiments or technical features can be combined to form new embodiments. .

[0020] Such as figure 1 As shown, the present invention provides a testing device for methane content in marine sediments, including a methane sensor 1, a closed cabin 2 and a pressure sensor 8. The methane sensor 1 is arranged in the closed cabin 2, and the methane sensor 1 is used To transmit the methane content in the closed cabin 2 to the control system.

[0021] The airtight cabin 2 is provided with a filter channel 4 and an air extraction channel 6, the air extraction channel 6 is provided with an on-off valve 7, and the filter channel 4 is provided with a filter device 3 and a solenoid valve 5. The filter device 3 is used to allow methane gas to enter the airtight compartment 2; the filte...

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Abstract

The invention discloses a device for testing methane content of marine sediments. The device comprises a methane sensor and a sealed cabin; the methane sensor is arranged in the sealed cabin; the methane sensor is used for transmitting the measured methane content of the sealed cabin to a control system; a filtering channel is formed in the sealed cabin; a filtering device is arranged on the filtering channel; and the filtering device is used for enabling methane gas to enter the sealed cabin. The device for testing the methane content of the marine sediments is completed in the marine bottomsediments completely, so that the measuring result is accurate and reliable.

Description

Technical field [0001] The invention relates to the technical field of testing, in particular to a testing device for the methane content in marine sediments. Background technique [0002] At present, there are natural gas hydrate, oil and natural gas deposits buried deep in some seabed sediments. These mineral deposits will contain a lot of methane gas. Due to the characteristics of large content and small molecular size, methane will diffuse and migrate in large amounts from deep mineral deposit areas upwards. Under high pressure and low temperature physical conditions, the upper seabed sediments will contain a large amount of methane. Conversely, the abnormal methane content in marine sediments can provide rapid and efficient geochemical evidence for marine gas hydrate surveys and marine oil and gas resource exploration, which is very important for marine survey research. The methane content test in marine sediments generally involves taking the sediments to the ship’s labor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/00
Inventor 程思海孙程刘梓锐吉炽权李燕万芃陈晨刘广虎王金莲
Owner GUANGZHOU MARINE GEOLOGICAL SURVEY