GEOLOGIC AND GEOCHEMICAL CONDITIONS OF FORMATION OF ZHONGBA CONDENSATE GAS FIELDS IN NORTH-WEST SICHUAN

doi:10.3863/j.issn.1000-2634.1990.04.003

西南石油大学学报(自然科学版) ›› 1990, Vol. 12 ›› Issue (4): 18-30.DOI: 10.3863/j.issn.1000-2634.1990.04.003

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GEOLOGIC AND GEOCHEMICAL CONDITIONS OF FORMATION OF ZHONGBA CONDENSATE GAS FIELDS IN NORTH-WEST SICHUAN

Zheng Yong-jian Lin Feng Wang Ting-dong Yan Wan-xun

Dept. of Geological Exploration

Received:1989-11-23 Revised:1900-01-01 Online:1990-11-20 Published:1990-11-20

Abstract

Abstract:

By studying formation conditions of Zhongba gas fields in Xu-2. Lei-3 condensate gas reservoirs, this paper shows that in the matvre period, continental-source-origin Oil and gas, Sapropelic and humic type of oil and gas of dfferent sources, and mixed source type of oil and gas can also form condensate gas reservoirs under given conditions. The geological factors of their formation and accumulation are organic lithofacies zones in favour of forming the condensate oil and gas system, fitting temperature and pressure conditions and fime-space metch of trap，migration and resrvoir conditions for forming condensate gas reservoirs.

Key words: Condensate oil and gas system, Genetic type, Condensate gas reservoir, Formation conditions, Accumulation rule, Zhongba gas fields

Zheng Yong-jian Lin Feng Wang Ting-dong Yan Wan-xun. GEOLOGIC AND GEOCHEMICAL CONDITIONS OF FORMATION OF ZHONGBA CONDENSATE GAS FIELDS IN NORTH-WEST SICHUAN[J]. 西南石油大学学报(自然科学版), 1990, 12(4): 18-30.

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GEOLOGIC AND GEOCHEMICAL CONDITIONS OF FORMATION OF ZHONGBA CONDENSATE GAS FIELDS IN NORTH-WEST SICHUAN

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