New fields, new types and resource potentials of hydrocarbon exploration in Sichuan Basin
摘要:The natural gas resources in Sichuan Basin rank first in China, with the proven rate of only 18. 8%, indicating enormous potentials for exploration and development. In recent years, significant breakthroughs have been made in oil and gas exploration in new fields, new strata, and new types of marine carbonate rocks, unconventional marine gas. continental tight gas. and continental shale oil in deep to ultra-deep layers of Sichuan Basin, demonstrating tremendous resource prospects. Despite of the low degree of exploration, the marine carbonate gas reservoirs in deep to ultra-deep layers in the western and central Sichuan Basin display a 3D accumulation pattern in multiple series of strata with hydrocarbons supplied from excellent source rocks, vertically stacked and horizontally connected high-energy mound-beach reservoirs in many series of strata, good source reservoir configuration and developed fault conduit systems, which are expected to form a new trillion cubic meter scale reserve zone. The foreland subbasin-slope is a favorable area for the enrichment of continental tight gas in central-western Sichuan Basin, and two sets of petroleum accumulation systems are formed, l. e., Xujiahe Formation and the Jurassic Shaximiao Formation, in which Xujiahe Formation is the major source rock. A giant gas field of 100 billion cubic meters has been discovered with the cumulative produced geological reserves exceeding 1012m3, and has become a new growth pole for natural gas production in Sichuan Basin. Unconventional hydrocarbon-bearing strata series such as Permian and Jurassic shale, mudstone, and coal are continuously and stably distributed. Oil and gas are widely enriched and accumulated. and most abundant in central and eastern Sichuan Basin, and moreover exploration breakthroughs have been achieved. In the fa-vorable exploration area for unconventional natural gas. the resources in the Permian reservoirs amount to nearly 8X 1012m3; in the fa-vorable exploration area for Jurassic shale oil, the resources are estimated to be 16. 96 脳 1012m3. The marine carbonate gas and continental tight gas in deep to ultra-deep layers in the western and central Sichuan Basin have been the main area for increasing reserves on a large scale in Sichuan Basin. Unconventional natural gas and continental shale oil are important resource replacement areas. 漏 2023 Science Press. All rights reserved.
ISSN号:0253-2697
卷、期、页:卷44期12:2045-2069
发表日期:2023-12-01
期刊分区(SCI为中科院分区):无
收录情况:EI(工程索引)
发表期刊名称:Shiyou Xuebao/Acta Petrolei Sinica
参与作者:杨雨,文龙,周刚,战薇芸,李海涛,陶佳丽
通讯作者:张晶,田兴旺,苑九涛,金世贵,史国梁
第一作者:宋泽章
论文类型:期刊论文
论文概要:杨雨,文龙,周刚,战薇芸,李海涛,宋泽章,张晶,陶佳丽,田兴旺,苑九涛,金世贵,史国梁,New fields, new types and resource potentials of hydrocarbon exploration in Sichuan Basin,Shiyou Xuebao/Acta Petrolei Sinica,2023,卷44期12:2045-2069
论文题目:New fields, new types and resource potentials of hydrocarbon exploration in Sichuan Basin