남중국 셰일가스 주요분지 특징 및 개발동향 분석
Geologic Characteristics and Development Trend of South China Shale Gas Basins
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초록
북미를 중심으로 시작된 셰일자원의 상업적 개발은 막대한 셰일자원 부존량과 수요 및 자본력을 지닌중국으로 확대될 가능성이 매우 크다. 특히 중국은 한국과는 지리적으로 인접하고 산업적 측면에서 매우 밀접한관계에 있어 우리가 특별히 관심을 가져야 할 지역으로 손꼽히고 있다. 이에 본 연구에서는 현재 중국에서 셰일자원의 상업적 개발이 가장 활발히 진행되고 있는 쓰촨 분지 등 남중국 주요분지의 지질학적 특성과 개발동향을조사, 분석하고자 하였다. 결과적으로, 쓰촨 분지는 셰일가스 저류층 및 파쇄 품질, 관련 인프라 등의 개발조건이상당히 우수한 것으로 분석되었다. 남중국판에 위치한 또 다른 대표적 셰일분지인 양쯔 플랫폼, 장안 분지, 수베이 분지의 셰일가스 분지의 지질학적 특성은 쓰촨 분지와 상당히 유사하며, 대도시와 인접해 있어 인프라 측면에서도 장점이 있어, 개발 가능성이 있는 분지들로 조사되었다. 그러나 지질구조적 측면의 복잡성이 크고, 지층의심도가 깊은 단점이 두드러지며, 이러한 까닭에 현재 쓰촨 분지만큼 개발이 진행되지 않은 것으로 분석되었다.
Abstract
It is highly promising that the commercial shale resources development can be expanded to China having huge domestic shale resources, demands and capitals. In particular, China is one of interesting regions on which Korea have to focus, because of the geographical vicinity and close industrial relationships. In this study, it was tried to investigate geological characteristics and development status of South China shale basins including Sichuan basin where commercial developments are actively in progress. Concludingly, it has been analysed that Sichuan can be a good candidate in terms of reservoir and, completion quality and development conditions. Another representative shale fields in South China plate such as Yangtze platform, Jianghan and Subei basin show similar geologic characteristics of Sichuan, and have advantages due to the closer distance to major cities, and then can also be considered as potential shale plays in a future. However, owing to some serious disadvantages like the high structural complexities and high degree of formation depth make it harder to develop these fields than sichuan.
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