Shale Oil Sweet Spots
Nine chemofacies are identified in lacustrine shale of the Dongying Depression, with calcite-vein laminated and feldspar-quartz laminated facies characterized by high TOC, porosity, permeability, and brittleness, making them ideal sweet spots for shale oil exploration.
Li, Guiang · Lin, Chengyan · Ma, Pengjie · Dong, Chunmei · Wu, Yuqi · Qianqian, Guan · Liu, Weibin · Du, Xinyu · Zhao, Ziru · Yang, Yiming
Geoenergy Science and Engineering 2024
Identified 9 chemofacies
Chemofacies 5 characterized by calcite vein laminations
Chemofacies 6 enriched with feldspar-quartz mineral laminations
Chemofacies 5 and 6 exhibit elevated TOC, enhanced porosity and permeability, and favorable brittleness