辽河坳陷雷家致密油烃源岩评价标准探讨

发布时间：2018-06-04 22:25

  本文选题：致密油 + 烃源岩　； 参考：《特种油气藏》2017年01期

【摘要】：为确定雷家地区沙四段致密油烃源岩评价标准及有利勘探区,通过对该区烃源岩岩性、TOC、有机质成熟度、有机质类型、生烃潜力等指标综合分析,认为该区烃源岩TOC高、成熟度适中,有机质类型好,生油潜力大,确定了该区沙四段致密油烃源岩优质源岩岩性主要为碳酸盐质泥页岩、泥质云(灰)岩及黏土型泥页岩,长英质泥页岩次之,并根据烃源岩有机质类型、TOC、Ro、ST等指标确定Ⅰ、Ⅱ、Ⅲ类烃源岩的评价标准。落实该区Ⅰ类烃源岩主要分布于陈家洼陷主体,面积为54.9 km~2;Ⅱ类烃源岩主要分布于陈家洼陷的外缘,面积约为153.0 km~2;Ⅲ类烃源岩主要分布于陈家洼陷的东侧,面积约为51.0 km~2。确定该区致密油Ⅰ类有利勘探区集中在陈家洼陷内,Ⅱ类有利勘探区主要为陈家洼陷的侧缘及北部台安洼陷主体,Ⅲ类有利勘探区为陈家洼陷的东侧。该研究对确定下一步有利勘探目标具有一定的指导意义。
[Abstract]:In order to determine the evaluation standard and favorable exploration area of tight oil source rocks in the fourth member of Shahejia area, through comprehensive analysis of the lithology of source rocks, maturity of organic matter, types of organic matter, hydrocarbon generation potential and so on, it is concluded that the source rocks in this area are of high TOC. The maturity is moderate, the organic matter type is good, and the oil generation potential is great. It is determined that the high quality source rocks of the tight oil source rocks in this area are mainly carbonate shale, shaly cloud (ash) rock and clay shale, and felsic shale are the second. The evaluation criteria of type 鈪，

本文编号：1979084