Fracture development and hydrocarbon accumulation in tight sandstone reservoirs of the Paleogene Huagang Formation in the central reversal tectonic belt of the Xihu Sag, East China Sea |
ZHOU Xinhuai,XU Guosheng,CUI Hengyuan,ZHANG Wu |
Fig. 9. Analysis of trace elements in the calcite filling in the fractures of the Huagang Formation. |