Advances in pressure core transfer and testing technology of offshore hydrate-bearing sediments

LIU Lele; LIU Changling; WU Nengyou; RUAN Hailong; ZHANG Yongchao; HAO Xiluo; BU Qingtao

2021 Vol. 40, No. 2-3

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LIU Lele, LIU Changling, WU Nengyou, RUAN Hailong, ZHANG Yongchao, HAO Xiluo, BU Qingtao. Advances in pressure core transfer and testing technology of offshore hydrate-bearing sediments[J]. Geological Bulletin of China, 2021, 40(2-3): 408-422.

Citation:

LIU Lele, LIU Changling, WU Nengyou, RUAN Hailong, ZHANG Yongchao, HAO Xiluo, BU Qingtao. Advances in pressure core transfer and testing technology of offshore hydrate-bearing sediments[J]. Geological Bulletin of China, 2021, 40(2-3): 408-422.

Advances in pressure core transfer and testing technology of offshore hydrate-bearing sediments

1.
Key Laboratory of Gas Hydrate, Ministry of Natural Resources/Qingdao Institute of Marine Geology, Qingdao 266071, Shandong, China
2.
Laboratory for Marine Mineral Resources, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, Shandong, China
3.
Beijing Institute of Exploration Engineering, Beijing 100083, China

Received Date: 31 May 2020

Revised Date: 13 July 2020

Publish Date: 15 March 2021

Abstract

Abstract

It is of great significance to understand the evolution characteristics of basic physical properties of gas hydrate reservoir to promote the exploration and test production of gas hydrate resources. Currently, the simulation experiment and test of physical property of hydrate-bearing sediments is still given priority to artificial preparation of natural gas hydrate core samples, which results a certain gap between the test results and the understanding of the simulation experiment and the requirements of the testing production engineering of natural gas hydrate resources. As physical property testing data highly need to be compared and corrected in situ in the field, pressure coring, pressure core transfer and testing techniques of hydrate-bearing sediments is an effective means for the acquisition and accumulation of physical testing data.Based on the introduction of the pressure coring, pressure transfer and testing methods, its advantages and disadvantages at home and abroad are comprehensively summarized, and the basic understanding of the core transfer and testing of hydrate-bearing sediments is deeply analyzed. According to the research and development status of pressure core transfer and testing system of offshore hydrate-bearing sediments in China, the challenges in this field are summarized.Finally, in view of the challenges, suggestions are put forward for the independent research and development capability of pressure core transfer and testing technology of offshore hydrate-bearing sediments and its related equipment in China.
- natural gas hydrate /
- hydrate-bearing sediment /
- pressure coring /
- pressure core transfer /
- pressure core testing

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References

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