An exploration breakthrough in Paleozoic petroleum system of Huanghua Depression in Dagang Oilfield and its significance, North China

ZHAO Xianzheng,PU Xiugang,JIANG Wenya,ZHOU Lihong,JIN Fengming,XIAO Dunqing,FU Lixin,LI Hongjun

Table 4 Lab tests of Paleozoic fluid inclusions from the central and southern Huanghua Depression.

Sample Depth/m Formation Occurrence Inclusion type Size/μm Homogenization temperature/°C Time of formation GG1-1-1 1 782.3 P1x Quartz Hydrocarbons 3-5 93, 110, 117, 128, 138 Oil generation DG1-1 3 390.4 P1s Quartz Crack Hydrocarbons 2-3 102, 104, 129, 134, 140, 152, 154, 158, 170 Oil generation JH1-1 2 477.5 C3t Quartz Crack Hydrocarbons 2-4 85, 117, 118, 127, 128, 129, 130, 135, 137 Oil generation DG1-5 3 619.0 C2b Calcite Hydrocarbons 3-6 108, 110, 125, 128 Oil generation