Technologcial progress and development directions of PetroChina overseas oil and gas exploration

MU Longxin*,JI Zhifeng

Table 2 Statistics on global unconventional oil prospective resources (revised from References [8, 25]).

Region Heavy oil Amount of prospective resources, in 108 t Oil sand Amount of prospective resources, in 108 t Tight oil Amount of prospective resources, in 108 t Oil shale Amount of prospective resources, in 108 t Total/108 t Recoverable Geologic Recoverable Geologic Recoverable Geologic Recoverable Geologic Recoverable Geologic North America 318 3177 395 3947 91 2540 699 3279 1503 12943 Asia 88 449 156 599 77 1555 570 1927 891 4530 Russia 409 4092 0 0 68 1954 150 280 627 6326 Middle East 82 224 18 54 26 700 354 2334 480 3312 Africa 130 502 48 273 79 2050 120 137 377 2962 South America 177 1208 0 0 13 357 102 176 292 1741 Europe 63 186 24 140 42 1191 68 115 197 1632 Oceania 0 0 0 0 18 871 36 97 54 968 Total 1267 9838 641 5013 414 11218 2099 8345 4421 34414