Hydrocarbon Geology Characteristics and Oil & Gas Resource Potential in the Afghan-Tajik Basin

Abstract:

The Afghan-Tajik Basin is an intermontane depression between the mountain ranges of Gissar and Pamirs, and Jurassic system and Tertiary system are rich in large oil & gas resources. In order to assure sustainable supply of oil & gas from Central Asia, we deeply researched hydrocarbon geology characteristics and resource potentials. The basin belongs to paralic sedimentary environment, and develops 3 sedimentary strata: Jurassic, Cretaceous, and Tertiary. Afghan-Tajik Basin develops 3 main source rocks including clastic rocks of Jurassic, carbonate rocks of Cretaceous and mudstone rocks of Eocene. The basin develops 2 plays: Jurassic-Cretaceous play is gas containing one, and Tertiary play is oil containing one. Plaster stone and salt rock of upper Jurassic are regional cap rocks of Jurassic-Cretaceous gas pool, and creaming mudstone and muddy limestone of Cretaceous and Tertiary are regional or partial cap rocks. Migration and accumulation of hydrocarbon occur in the late Cretaceous and early Pliocene epoch. Afghan-Tajik Basin has larger exploration potentials, and residual resources are 2.4¡Á10⁸t. The potential zones are as follows, south part of basin, oil-gas structures of post-salt, reef limestone of pre-salt, and litho-stratigraphic traps.

• Periodical: Advanced Materials Research (Volumes 734-737)
• Pages: 366-372
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.734-737.366
• Online since: August 2013
• Authors: Wei Yin*
• Keywords: Afghan-Tajik Basin, Hydrocarbon Geology Characteristics, Oil Gas Resource Potential

References

[1] Xiaoguang Tong and Shubao Xu. Atlas of world petroleum exploration and development [M]. Beijing: Oil Industry Press, 2004. In Chinese.

[2] Chinese Academy of Geological Sciences. Geological map of China and its adjacent areas [M]. Beijing: Geology Press, 2006. In Chinese.

[3] Yixiu Zhu, Luofu Liu and Changsong Lin. Petroleum geology of Fergana Basin in Central Asia [J]. Journal of Lanzhou University(Natural Sciences 2005. 42(1): 67-72. In Chinese.

[4] Afghanistan: the oil and gas opportunities of China [J]. Chinese Petroleum and Petrochemical Processing. 2007. In Chinese.

[5] Zuoxiang An and Zhengqin Hu．The Central Asian oil and gas area [M]. Beijing: Oil Industry Press, 1993: 309-326. In Chinese.

[6] Chengzao Jia, Shufeng Yang. Tectonic geology and natural gas of basins in the North Tethys margin [M]. Beijing: Oil Industry Press, 2001: 39-49. In Chinese.

[7] Afghan-Tajik Basin, HIS internal data.

[8] Yixiu Zhu and Luofu Liu. Petroleum Geology of South Tajikistan Basin in Central Asia [J]. Xinjiang petroleum, 2007, 28 (2): 257-261. In Chinese.

[9] Otto S C. Mesozoic-Cenozoic history of deformation and petroleum systems in sedimentary basins of Central Asia: implications of collisions on the Eurasian margin [J]. Petroleum Geoscience. 1997, 3(6): 327-341．

DOI: 10.1144/petgeo.3.4.327

[10] Yongxiang Sun. Oil-bearing quality of intermountain basin of Tianshan Mountain [J]. petroleum exploration and development, 1994, 15(1): 13-14. In Chinese.

[11] G. I. Smith. The quaternary salt deposit in southwestern Afghanistan [J]. Foreign mineral deposits, 1989.