摘要
在总结三交地区前期工作的基础上,结合当前煤层气勘探开发的最新进展,对三交地区煤层气勘探开发潜力进行了深入分析。研究认为该区煤层气资源丰富,勘探潜力巨大,具有构造稳定简单,埋藏适中,煤层厚度较大,含气量较高,水文条件较好的特点;纵向上,根据沉积环境、煤岩煤质、储层物性和含气性等地质条件,可划分为山西组3/4/5号煤层气藏和太原组8/9号煤层气藏;初步评估该区煤层埋深小于1000m的煤层气资源量在1000×108m3以上,属于中浅埋深、中高丰度、大型煤层气田。煤层气试采情况显示,该区煤层气具有较好的可采性,预示着该区具有良好的煤层气开发前景。
Based on the summary of preliminary researches and in combination with the latest progress of the Coalbed methane(CBM) exploration and development in Sanjiao Area of Ordos Basin,the CBM exploration and development in the region were analyzed.Studies indicated that there were rich CBM resources and high exploration and development potential,it had the features of stable and simple structure,proper burial depth,thicker coal seam,high gas content and better hydrological conditions;according to the geological conditions such as sedimentary environment,coalbed reservoir characteristics and so on,it could be divided into two sets of CBM reservoir vertically: Coal-bed Reservoir 3/4/5 of Shanxi Formation and Coalbed Reservoir 8/9 of Taiyuan Formation.Preliminary assessment of CBM resource at 1000 m shallow coalbed reservoirs is more than 1000×108m3.It belongs to a large CBM field with medium-shallow depth,middle-high abundance.CBM production test shows that CBM in the area has a good recoverability,good prospects for CBM development.It is one of the most potential areas for CBM exploration and development.
出处
《石油天然气学报》
CAS
CSCD
北大核心
2011年第4期39-42,165,共4页
Journal of Oil and Gas Technology
基金
国家科技重大专项(2009ZX05062)
关键词
鄂尔多斯盆地
三交地区
煤层气
成藏条件
Ordos Basin
Sanjiao Area
CBM
hydrocarbon accumulation condition
new understanding
