中国石油大学学报（自然科学版）2018，Vol.42Issue(1)：32-39,8.DOI:10.3969/j.issn.1673-5005.2018.01.004
泥质烃源岩的有效排油门限及页岩油地质意义
Eeffective oil expulsion threshold of argillaceous source rocks and geological significance of shale oil
摘要
Abstract
A method of determining the effective hydrocarbon expulsion threshold was carried out by a series of simulation ex-periments on immature-low mature source rocks of different types and organic carbon content,and the geological significance to shale oil exploration were discussed. The results show that the minimum oil production is 5-8 mg/g(oil/rock) when the effective oil expulsion occurrs. Effective hydrocarbon expulsion threshold is controlled by the match of type, abundance and evolution of organic matter. Source rocks with original organic matter content less than 1.5% of type I,2.0% of typeⅡ1, 2.5% of typeⅡ2,respectively,can not reach the effective oil expulsion threshold in the whole oil generation stage. The re-maining oil in the source rock strata would be as a favorable target for shale oil exploration. The poor exploitation prospect is due to the low degree of evolution and low quality,so the in-situ heating conversion mining technology could be a good way to develop this part of shale oil resources. The exploration and development of shale oil should focus on source rock strata where effective oil expulsion has occurred and evolution degree(Ro) is between 1.0%-1.3%. In these locations,there are more light oil and natural gas in detained hydrocarbon, and the high gas oil ratio and good fluidity imply optimistic mining pros-pect.关键词
烃源岩/生排烃模拟/排烃门限/页岩油Key words
source rocks/simulation of hydrocarbon generation and expulsion/hydrocarbon expulsion threshold/shale oil分类
能源科技引用本文复制引用
马中良,郑伦举,余晓露,赵中熙,李志明..泥质烃源岩的有效排油门限及页岩油地质意义[J].中国石油大学学报（自然科学版）,2018,42(1):32-39,8.基金项目
国家科技重大专项(2017ZX05036002-004,2017ZX05005001-003) （2017ZX05036002-004,2017ZX05005001-003）
国家自然科学基金项目(41690133,U1663202) （41690133,U1663202）
中国石化科技攻关项目(P14040) （P14040）
