摘要
根据巴彦塔拉地区27口井所钻遇地层的烃源岩地化分析成果，对该区有机质丰度、有机质类型和有机质成熟度等指标进行了研究与评价，分析认为巴彦塔拉地区主要发育三套烃源岩：铜钵庙组、南一段和大一段，其烃源岩有机质丰度以中等一好为主，有机质类型为I～Ⅱ型为主，其中南一段为优质烃源等。巴彦塔拉地区整体上烃源岩成熟门限大约在1500m左右。
Organic geochemistry data of the drilled strata in 27 wells in Bayantala was analyzed. The indexes of abundance, type and maturity of the organic matter of these wells in Bayantala were researched and evaluated. The result shows that the high--quality hydrocarbon source rocks of Bayantala mainly lo- cated in the Tongbomiao Formation, lower part of Nantun Formation and Da 1 Member. And the main part of the dark mudstone in these strata is medium or good source rocks with organic matter of Type I and K. The source rock is also in stage of maturity. Generally, the maturity threshold of organic matter in Bayantala is about 1500m.
出处
《内蒙古石油化工》
CAS
2010年第4期126-128,共3页
Inner Mongolia Petrochemical Industry
关键词
烃源岩
评价
有机质丰度
有机质类型
巴彦塔拉
Hydrocarbon source rock
Evaluation
Abundance of organic matter
Type of organic mat- ter evolution
Bayantala
