济阳坳陷沙三下亚段和沙四上亚段页岩油地球化学评价  

Geochemical Evaluation of Shale Oil in Lower Es_3 and Upper Es_4 in Jiyang Depression

作　　者：李政[1,2,3] 王秀红[2] 朱日房[2] 翟正[2] 

机构地区：[1]成都理工大学油气藏地质及开发工程国家重点实验室,成都610059 [2]中国石化胜利油田分公司勘探开发研究院,山东东营257015 [3]中国石化页岩油气勘探开发重点实验室,胜利油田分室,山东东营257015

出　　处：《新疆石油地质》2015年第5期510-514,共5页Xinjiang Petroleum Geology

基　　金：国家自然科学基金(41072096,41372129);国家973项目(2014CB239100);中国石化科技攻关项目(P14068)

摘　　要：以渤海湾盆地济阳坳陷古近系沙河街组沙三下亚段和沙四上亚段2套页岩为研究对象,从生烃条件及含油性研究入手,进行了页岩油地球化学评价,认为这2套页岩具备形成页岩油的物质基础。建立了有机碳含量、氯仿沥青A含量和溶解烃含量的页岩油分级评价标准,结合自然演化剖面的规律剖析,提出了页岩油富集门限值,东营凹陷沙三下亚段和沙四上亚段、沾化凹陷和车镇凹陷沙三下亚段泥页岩是济阳坳陷良好的页岩油勘探目的层系。Taking the shale members of Lower Es3 and Upper Es4 of the Paleogene in Jiyang depression as research subjects and startingfrom the hydrocarbon generation condition and oil-bearing property,the geochemical characteristics of the shale oils are evaluated. The resultsshow that the shale members have favorable conditions for forming shale oil. This paper establishes the grading evaluation criteria of shaleoil in terms of organic carbon content,chloroform bitumen＂A＂content and dissolved hydrocarbon content＂S1＂. Combined with the evolu-tion of profiles,it proposes the shale members＇ oil enrichment thresholds,and suggests that the shale members of Lower Es3 and Upper Es4 in Dongying sag and Lower Es3 in Zhanhua sag and Chezhen sag are favorable target zones for shale oil exploration in Jiyang depression.

关 键 词：渤海湾盆地 济阳坳陷 沙河街组 页岩油 含油性 地球化学特征 

分 类 号：TE125.2[石油与天然气工程—油气勘探]