The first offshore natural gas hydrate production test in South China Sea

Jin-fa Li; Jian-liang Ye; Xu-wen Qin; Hai-jun Qiu; Neng-you Wu; Hai-long Lu; Wen-wei Xie; Jing-an Lu; Fei Peng; Zhen-qiang Xu; Cheng Lu; Zeng-gui Kuang; Jian-gong Wei; Qian-yong Liang; Hong-feng Lu; Bei-bei Kou

doi:10.31035/cg2018003

2018 Vol. 1, No. 1

Article Contents

Article navigation > China Geology > 2018 > 1(1): 5-16

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Jin-fa Li, Jian-liang Ye, Xu-wen Qin, Hai-jun Qiu, Neng-you Wu, Hai-long Lu, Wen-wei Xie, Jing-an Lu, Fei Peng, Zhen-qiang Xu, Cheng Lu, Zeng-gui Kuang, Jian-gong Wei, Qian-yong Liang, Hong-feng Lu, Bei-bei Kou, 2018. The first offshore natural gas hydrate production test in South China Sea, China Geology, 1, 5-16. doi: 10.31035/cg2018003

Citation:

The first offshore natural gas hydrate production test in South China Sea

a.
China Geological Survey, Beijing 100037, China
b.
Guangzhou Marine Geological Survey, China Geological Survey, Guangzhou 510075, China
c.
Qingdao Institute of Marine Geology, China Geological Survey, Qingdao 266071, China
d.
Peking University, Beijing 100871, China
e.
Institute of Exploration Techniques, China Academy of Geological Sciences, Langfang 065000, China
f.
CNPC Offshore Engineering Company Ltd., Beijing 100102, China
g.
Center of Oil & Natural Gas Resource Exploration, China Geological Survey, Beijing 100083, China

More Information

Corresponding author: chinageology@126.com

Received Date: 02 February 2018

Revised Date: 12 February 2018

Accepted Date: 20 February 2018

Available Online: 10 March 2018

Publish Date: 25 March 2018

Abstract

Abstract

Natural gas hydrates (NGH) is one of key future clean energy resources. Its industrialized development will help remit the huge demand of global natural gas, relieve the increasing pressure of the environment, and play a vital role in the green sustainable growth of human societies. Based on nearly two decades’ studying on the reservoir characteristics in the South China Sea (SCS) and the knowledge of reservoir system, the China Geological Survey (CGS) conducted the first production test on an optimal target selected in Shenhu area SCS in 2017. Guided by the "three-phase control"exploitation theory which focused on formation stabilization, technologies such as formation fluid extraction, well drilling and completing, reservoir stimulating, sand controlling, environmental monitoring, monitoring and preventing of secondary formation of hydrates were applied. The test lasted for 60 days from May 10^th when starting to pump, drop pressure and ignite to well killing on July 9^th, with gas production of 3.09×10⁵ m³ in total, which is a world record with the longest continuous duration of gas production and maximal gas yield. This successful test brings a significant breakthrough on safety control of NGH production.
- Natural gas hydrate (NGH) /
- Production test /
- Shenhu area /
- South China Sea (SCS)

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References

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