石油实验地质2011，Vol.33Issue(5)：447-451,459,6.
烃源岩有限空间油气生排模拟及其意义
Simulation of source rock for hydrocarbon generation and expulsion in finite space and its significance
摘要
Abstract
Simulation of source rock for hydrocarbon generation and expulsion in finite space has been carried out with samples from the Es23 sub-section of the Dongpu sag using the hydrocarbon generation and expulsion simulation experimental instrument of type DK-Ⅱ with porosity, temperature and pressure under geological conditions. It has been concluded that the process of hydrocarbon generation and expulsion of source rock can be divided into 4 stages as follows. 1) Ro≤0. 72%, oil generates slowly and does not expel; 2) 0. 72%<Ro< 0.80%, oil generates rapidly, but still remains in source rock; 3) 0. 80%<Ro<1. 00%, oil generation from kerogen has finished or suppressed, and oil transfers from big molecular to small molecular. Oil migrates to andassemblages in the upper and lower adjacent sandstone as well as source rock surface and fracture, which may guide unconventional hydrocarbon exploration in source rock dominant belt in the Dongpu Sag or the other similar basins or sags; 4) Ro>l. 0%, oil cracks to gas; however, oil does not crack to CH4 completely and mainly remains in oil even though Ro > 2. 0% or 2. 4%. The studies suggest that petroleum exploration can be carried out in deeper formation.关键词
有限空间/油气生排模拟/烃源岩/石油地质意义Key words
finite space/simulation of hydrocarbon generation and expulsion/source rock/petroleum geological significance分类
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李志明,郑伦举,马中良,徐二社,余晓露,靳广兴,慕小水..烃源岩有限空间油气生排模拟及其意义[J].石油实验地质,2011,33(5):447-451,459,6.基金项目
中国石油化工股份有限公司科学技术研究开发项目(P08060)资助. （P08060）
