Enrichment rules and exploration practices of Paleogene shale oil in Jiyang Depression, Bohai Bay Basin, China

SONG Mingshui,LIU Huimin,WANG Yong,LIU Yali

Table 2 Fracability of main shale oil pays worldwide.

Area Formation Typical well Brittle mineral content/% Young's modulus/ GPa Poisson's ratio Length of horizontal section/m Number of fracturing/ sections Volume of fracturing liquid/m3 Volume of sand/m3 Western Gulf Eagle Ford >80 >52 <0.22 1 800 20-30 18 000 4 032 Permian Wolfcamp >70 <0.20 2 200 37 46 200 4 400 Anadarko Woodford >55 >34 <0.18 1 460 11 30 800 902 Jimsar Lucaogou JHW036 >80 >50 <0.23 1 524 25 70 423 4 550 Ordos Yanchang >80 >19 <0.20 1 618 23 37 214 7 766 Cangdong Sag Ek2 GD1701H >65 >31 <0.25 1 447 16 34 288 1 388 Jiyang Depression Es3 BYP1 >50 >33 <0.26 559 2 2 218 132 Jiyang Depression Es4 BYP2 >50 >33 <0.26 1 064 5 3 227 121