摘要
六盘水是我国南方重要的煤层气富集区，处于黔西、滇东、川南晚二叠世上扬子聚煤盆地的富煤中心地带。煤与煤层气聚集于各式向斜之中。在对六盘水煤层气地质特征研究的基础上，揭示了六盘水煤层气富集高产控制因素：六盘水聚煤层气的各式向斜或盆地煤层分布广、厚度大；煤岩镜质组含量高；处于区域岩浆热变质区、煤层割理发育，构造裂缝适中，因而含气量高，可解吸率高，有利于煤层气富集高产；盖层条件优良；处于承压水区；煤层压力大。六盘水的盘县盆地、格目底向斜、郎岱向斜、六枝向斜、补郎向斜、青山向斜北西翼具备了形成煤层气富集高产区带的有利地质条件。六盘水各式向斜中煤层气资源量为７５００９１３０亿ｍ３。
LiuPan Shui,one of the most important coalbed methane areas,is located
in the central part of the Upper Yantze coalbearing of the Late Permian in the Western
GuizhouEastern Yunnan and Southern Sichuan regions.Coal and coalbed methane accumulated
in many synclinoria of the region.The geological characteristics study of the Liupan Shui
coalbed methane indicated the wide distribution of coalbeds with large thickness in the
synclinoria or basins,high vitrinite amount in the anthropological composition,moderate
coalification degree,high gas content in coalbed,fractures well developed in coal bed situated in
the regional magneticmetamorphic belt,very good seality of caprock trapped in the confined
ground water area with high pressure of coalbed.Pan Xian Basin and
Gemu,Langdai,Liuzhi,Bulang and Qingshan synclines have good geological conditions for
coalbed methane formation and enrichment.Coalbed methane resource are estimated to be from
7,500 to 9,13010m.
出处
《石油学报》
EI
CAS
CSCD
北大核心
1999年第3期31-37,共7页
Acta Petrolei Sinica
基金
中国石油天然气总公司"九五"煤层气科技工程项目
云南省自然科学研究基金
关键词
六盘水
煤层气
地质特征
富集高产因素
天然气
Liupan Shui
coal bed methane
geological
characteristics
enrichment controlling factor
analysis
