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泌阳凹陷页岩油赋存特征及可动性研究 预览

Occurrence characteristics and mobility of shale oil in Biyang sag
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摘要 泌阳凹陷页岩油主要以吸附油和游离油两种方式赋存在较大孔隙及裂缝中,其中游离油主要赋存在层间缝、构造缝以及较大的基质孔隙内,其分布主要受基质孔隙、裂缝影响;吸附油主要赋存在有机质及黏土矿物颗粒表面。通过开展页岩可动油相关实验,建立了页岩可动油评价指标及界限,明确了可动油影响因素,实验表明,游离烃(S1)与有机碳含量比值为60mg/g、氯仿沥青"A"与TOC比值为0.2、埋深为2000m时为页岩可动油门限;可动油富集程度主要与深度、有机碳含量、孔隙度和石英、长石、黏土等矿物含量有关。 Shale oil in Biyang sag is mainly distributed in larger pores and fractures by means of adsorbed oil and free oil.The free oil is mainly distributed in interlayer fractures,structural fractures and larger matrix pores,and its distribution is mainly affected by matrix pores and fractures.While the adsorbed oil mainly occurs on the surface of organic matter and clay mineral particles.By carrying out related experiments on shale movable oil,the evaluation index and limit of shale movable oil were established,and the influencing factors of movable oil were defined.The experiment results showed that the ratio of free hydrocarbon (S1) to organic carbon content was 60 mg/g,the ratio of chloroform asphalt 'A' to TOC was 0.2,and the limit of movable throttle of shale was set when the burial depth was 2 000 m.The degree of movable oil enrichment is mainly related to depth,organic carbon content,porosity and mineral content such as quartz,feldspar and clay.
作者 余志远 章新文 谭静娟 李吉君 刘召 刘洁文 YU Zhiyuan;ZHANG Xinwen;TAN Jingjuan;LI Jijun;LIU Zhao;LIU Jiewen(Exploration & Development Research Institute of Henan Oilfield Company,SINOPEC,Zhengzhou,Henan 45000,China;School of Earth Science,China University of Petroleum (East China),Qingdao,Shandong,266580,China)
出处 《石油地质与工程》 CAS 2019年第1期42-46,共5页 Petroleum Geology and Engineering
关键词 泌阳凹陷 页岩油 赋存方式 可动油 影响因素 Biyang sag shale oil occurrence mode movable oil influencing factors
作者简介 余志远,工程师,1986年生,2008年毕业于长江大学资源勘查工程专业,现从事油气田勘探地质工作。
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