特种油气藏2017，Vol.24Issue(5)：37-41,164,6.DOI:10.3969/j.issn.1006-6535.2017.05.007
鄂尔多斯盆地延长组致密油 有效烃源岩评价
Evaluation on Effective Source Rock of Tight Oil in Yanchang Formation,Ordos Basin
摘要
Abstract
For evaluating the effective source rock of tight oil in the Triassic Yanchang Formation of the Ordos Ba-sin,we utilized the overlapping relation between the distribution area of discovered tight oil reserves,and the planar distribution maps of thickness,TOC and hydrocarbon expulsion intensity of the Chang7 member source rock,and obtained the lower limit values of the evaluation indexes of the effective source rock. Furthermore,by analyzing the rock pyrolysis parameters and mud logging data of more than 100 coring wells,we established the plate for evalua-ting the effective source rock in the Chang7 member. According to the continuous evolution relation of three parame-ters,we identified the lower limit scope for evaluating the effective source rock. The study results show that the low-er limit values of all the evaluation parameters for the effective source rock in the Chang7 member have mutual com-pensation relations,not a certain fixed value. This study has great guiding meaning for evaluating the effective source rock of tight oil in the Yanchang Formation.关键词
有效烃源岩/评价标准/有效排烃厚度/排烃门限/延长组/鄂尔多斯盆地Key words
effective source rock/evaluation criterion/effective hydrocarbon expulsion thickness/hydrocarbon ex-pulsion threshold/Yanchang Formation/Ordos Basin分类
能源科技引用本文复制引用
马芳侠,李耀华,葛云锦,刘聃,万成祥..鄂尔多斯盆地延长组致密油 有效烃源岩评价[J].特种油气藏,2017,24(5):37-41,164,6.基金项目
国家自然科学基金"非常规油气富集机制与地球物理甜点识别"(U1562215) （U1562215）
