鄂尔多斯盆地奥陶系烃源岩有效性判识  

A study on validity identification of source rock by new experimental techniques for Ordovician in Ordos basin

作　　者：谢增业[1] 伍大茂[1] 胡国艺[2] 李剑[2] 蒋助生[2] 严启团[2] 

机构地区：[1]中国地质大学 [2]中国石油勘探开发研究院廊坊分院

出　　处：《石油勘探与开发》2002年第2期29-32,共4页Petroleum Exploration and Development

基　　金："九五"国家科技攻关项目(99-110-01-03)

摘　　要：应用激光-诱导荧光、环境扫描电镜、全岩热模拟实验技术等,对鄂尔多斯盆地奥陶系岩心样品进行了沥青判识及定量、有机质生气过程的可视化模拟以及产气潜力等研究。奥陶系岩石中普遍存在的沥青及有机质生气过程的可视化动态模拟结果证实,烃源岩在地质历史中曾经生排烃;烃源岩产气率大于自身的吸附气量,是有效气源岩。推测在鄂尔多斯盆地奥陶纪海进期沉积的地层中可能发育优质气源岩。图4表2参10（谢增业摘）Laser-fluorescene, environmental scanning electron microscope and rock thermal simulation techniques have been used to identify and quantify bitumen, to evaluate the genetic potential and to imitate the visible gas generation process of organic matter from Ordovician rock in Ordos basin. The conclusions have proved that the source rock had generated and expelled hydrocarbon during the process of geologic history by the existence of bitumen in rock and the visual simulation of organic matter. The source rock is effective only if the amount of gas generated in Ordovician rock is greater than that of the adsorbed by itself. Authors propose that the source rock with high abundant organic matter developed in transgressive sequence of Ordovician in Ordos.

关 键 词：鄂尔多斯盆地 奥陶系 烃源岩 有效性判识 沥青 环境扫描电镜 可视化模拟 长庆气田 

分 类 号：P618.130.2[天文地球—矿床学] TE12[天文地球—地质学]