油气地质与采收率2024，Vol.31Issue(6)：1-17,17.DOI:10.13673/j.pgre.202405049
济阳坳陷古生界潜山油气成藏新认识与攻关方向
New understanding and research directions of oil and gas accumulation in Paleozoic buried hills,Jiyang Depression
摘要
Abstract
Paleozoic buried hill is one of the high-yield fields of oil and gas enrichment in Jiyang Depression,and it is a critical re-serve expansion position.Oil and gas accumulation in Paleozoic buried hills has unique petroleum geology conditions.The strata are age-old,and lithology includes carbonate rock and clastic rock.In the long geological evolution process,multi-stage structures,faults,and deep fluid activities are strong,making the buried hill have the characteristics of evolutionary superposition,structural diversity,reservoir complexity,multi-sources of oil and gas,and accumulation differences.Based on the progress of oil and gas ex-ploration and further research of Paleozoic buried hills in Jiyang Depression since"The 13th Five-Year Plan",the formation and en-richment of oil and gas in Paleozoic buried hills in faulted basins were revealed from the internal geological process of hill forma-tion,hydrocarbon generation,reservoir formation,and petroleum accumulation.The co-controlled hill formation mechanism of"compression-tension-strike-slip-denudation"was proposed.The Paleozoic buried hills had Carboniferous-Permian and Palaeogene dual-source hydrocarbon supply conditions,ternary control storage mode of"sedimentary-diagenetic environment,structure-pressure coupling,and fluid-rock interaction,"oil and gas accumulation mode controlled by migration and plugging,and orderly distribution of reservoirs.Guided by these understandings,the exploration directions of Paleozoic buried hill reservoirs in Jiyang Depression was changed,and the exploration space of buried hills was expanded,laying a foundation for the evaluation of Paleo-zoic buried hill exploration zones,and the optimization of trap targets and breakthroughs were made in the exploration of hidden buried hills in deep slopes and negative tectonic zones.At the same time,based on the understanding degree and theoretical develop-ment status of different accumulation conditions of Paleozoic buried hills in Jiyang Depression,the next research direction of oil and gas exploration was put forward.关键词
古生界潜山/形成机制/成藏模式/勘探进展/攻关方向/济阳坳陷Key words
Paleozoic buried hill/formation mechanism/accumulation mode/exploration progress/research direction/Jiyang De-pression分类
能源科技引用本文复制引用
王永诗,刘瑞娟,张鹏飞,王学军,马帅,罗霞,张云银,熊伟,王勇,田雯..济阳坳陷古生界潜山油气成藏新认识与攻关方向[J].油气地质与采收率,2024,31(6):1-17,17.基金项目
国家科技重大专项"济阳坳陷油气富集机制与增储领域"(2016ZX05006-003),中国石化科技攻关项目"济阳坳陷中-古生界潜山油气富集规律与目标评价"(P19015). （2016ZX05006-003）
