|
|
|
Key exploration & development technologies and engineering practice of continental shale oil: A case study of Member 2 of Paleogene Kongdian Formation in Cangdong Sag, Bohai Bay Basin, East China
|
|
ZHOU Lihong,ZHAO Xianzheng,CHAI Gongquan,JIANG Wenya,PU Xiugang,WANG Xiaodong,HAN Wenzhong,GUAN Quansheng,FENG Jianyuan,LIU Xuewei
|
|
| |
Table 2 Comprehensive evaluation criterion of shale oil in the Kong 2 Member of Cangdong Sag.
|
|
| Sweet spot type | Evaluation parameters | Comprehensive evaluation index | TOC/%
(0.2) | Ro/%
(0.1) | Intersection frequency of acoustic wave and density logs
(0.2) | Porosity/%
(0.1) | OSI/(mg·g-1)
(0.2) | Content of brittle minerals/%
(0.2) | | Class I sweet spot | ≥2.0 | 0.7-1.3 | 0.4-1.0 | ≥6.0 | ≥200.0 | ≥70.0 | ≥1.6 | | Class II sweet spot | 1.0-2.0 | 0.5-0.7 | -0.4-0.4 | 4.0-6.0 | 100.0-200.0 | 50.0-70.0 | 1.2-1.6 | | Class III sweet spot | <1.0 | <0.5 | -1.0--0.4 | <4.0 | <100.0 | <50.0 | <1.2 |
|
|
|