煤田地质与勘探2017，Vol.45Issue(2)：55-61,7.DOI:10.3969/j.issn.1001-1986.2017.02.010
澳大利亚加里里盆地煤层气控气因素及富集区预测
Controlling factors of coalbed methane and accumulation areas in Galilee basin in Australia
谷峰 1李乐忠 1俞益新 1苏展 1葛岩 2郝岩 3刘晓健4
作者信息
- 1. 中海石油气电集团有限责任公司技术研发中心,北京 100028
- 2. 中海石油工程技术公司非常规研究院,天津 300450
- 3. 国家安全生产监督管理总局煤炭信息研究院,北京 100028
- 4. 中海石油(中国)天津分公司勘探开发研究院,天津 300450
- 折叠
摘要
Abstract
Galilee basin is the main coal basin in eastern Australia and also the important area of coalbed methane exploration and development. Through the coal quality, gas source, structure evolution, sealing conditions and hy-drology conditions, main gas control factors and accumulation areas were studied. The researches show that coal quality and the ability of generating gas are not variable, coal began generating gas continuously from Mid-Creta-ceous; the tectonic movement in Late Cretaceous destroyed the gas accumulation; mudstone is more developed in the area between the fluvial fans, forming good cap; water retention area was formed near the center of the basin, the salinity is higher and the formation water is mainly of calcium chloride type, which are benefit for the gas preservation; the nitrogen proportion of the desorbed gas and gas content also show that the gas-bearing property is better. Development of good local cap and water retention environment are the main gas controlling factors of coalbed methane accumulation. The gas accumulation conditions are better in the northeast of Hulton-Road struc-ture, the east of Marathon monoclinic and the north of Berly uplift in the central basin are the coalbed methane accumulation areas.关键词
煤层气/主控气因素/富集区/澳大利亚加里里盆地Key words
coalbed methane/main gas controlling factors/accumulation areas/Galilee basin in Australia分类
天文与地球科学引用本文复制引用
谷峰,李乐忠,俞益新,苏展,葛岩,郝岩,刘晓健..澳大利亚加里里盆地煤层气控气因素及富集区预测[J].煤田地质与勘探,2017,45(2):55-61,7.
