油气地质与采收率2025，Vol.32Issue(2)：1-13,13.DOI:10.13673/j.pgre.202311018
济阳坳陷中—古生界潜山形成演化及分布规律
Formation,evolution,and distribution law of Mesozoic-Paleozoic buried hills in Jiyang Depression
摘要
Abstract
Buried hill is an essential field of oil-gas exploration in Jiyang Depression.Deepening the formation mechanisms and es-tablishing a predictable classification scheme of buried hills are the key to the exploration of hidden buried hills.Based on 3D seis-mic data and drilling data,this paper analyzed the structural characteristics of buried hills,fault activity rates and equilibrium cross-section,recovered the superposed evolution processes of buried hills at key stages,established the genesis-structure classification system of buried hills,and clarified the spatial distribution law of buried hill types.The results show that the buried hills in Jiyang Depression have experienced three stages of evolution since the Mesozoic,namely,Indosinian compression and thrust,Yanshanian sinistral transtension,and Himalayan dextral transtension.The former two form the prototype and initial pattern of NW-trending bur-ied hills,respectively,while the latter results in the formation of the NEE-trending buried hills,forming the current"seven-longitude and four-latitude"distribution pattern of buried hills.According to the difference in the structural location and the move-ment of buried hills during the Yanshanian and Himalayan periods,buried hills in Jiyang Depression are divided into four types:Meso-Cenozoic uplift type residual hills,Mesozoic uplift-Cenozoic sink type fault-block hills,Mesozoic sink-Cenozoic uplift type detached hills,and strike-slip reformed type fault-block hills.Their orderly distribution fits the structures of the faulted basin.From the bulge zone,slope zone,and depression zone to the steep slope zone,the Mesozoic-Cenozoic uplift type residual hills,the Me-sozoic sink-Cenozoic uplift type fault-block hills,and the Mesozoic uplift-Cenozoic sink type detached hills are successively devel-oped.关键词
中—古生界潜山/构造格局/成因演化/有序分布/济阳坳陷Key words
Mesozoic-Paleozoic buried hill/structural pattern/genesis evolution/orderly distribution/Jiyang Depression分类
石油、天然气工程引用本文复制引用
王永诗,罗霞,胡阳,石晓光,张波..济阳坳陷中—古生界潜山形成演化及分布规律[J].油气地质与采收率,2025,32(2):1-13,13.基金项目
国家油气重大科技专项"渤海湾盆地精细勘探关键技术"(2016ZX05006-003),中国石化股份公司科技攻关项目"济阳坳陷中—古生界构造演化与潜山形成分布"(P19015-1). （2016ZX05006-003）
