辽宁西部建昌盆地九佛堂组油页岩沉积学特征

The Oil Shale Sedimentary Characteristics in Jiufotang Formation of Jianchang Basin in the Western Liaoning Province

开发利用油页岩,首先要进行资源评价,包括油页岩岩质和油页岩灰的化学组成及特性。在揭露辽宁西部(以下简称"辽西")建昌盆地的油页岩发育地层的基础上,阐述了辽宁西部建昌盆地九佛堂组广泛发育的油页岩的岩石学特征和沉积地球化学特征:有机质质量分数较高,油页岩的有机质类型主要为腐泥质、腐殖质或混合型,有机质成熟度为低成熟-成熟阶段和生烃能力好-最好生油岩,符合我国绝大多数(占样品总数的96.3%)油页岩都是良好生油岩的一般规律,对开发利用辽宁西部建昌盆地九佛堂组油页岩,进行资源评价具有重要意义。

To develop and utilize the oil shale,the first step was to carry out the resource evaluation,including the chemical composition and characteristics of oil shale rock and oil shale ash.Based on the presentation of oil shale developed strata in the Jianchang Basin of west Liaoning Province,the petrologic characteristics and sedimentary geochemical characteristics of oil shale developed widely in the Jiufotang Formation of Jianchang Basin in the western Liaoning Province are expounded,which shows that the content of organic matter is higher;types of the organic matter in oil shale are mainly sapropelic substance humus or mixed substances;the maturity of the organic matter is at low mature-mature stage;hydrocarbon generation capacity is good—it is the best source rock.These features are consistent with regular rules that most of the oil shale(accounts for 96.3% of the total number of samples) in our country is good source rock,which is important for the development and utilization of oil shale and the resource appraisal in Jiufotang Formation of Jianchang Basin in the western Liaoning Province.