太行山构造演化对临清坳陷上古生界油气的影响  

INFLUENCES OF THE TECTONIC EVOLUTION IN TAIHANG MOUNTAINS ON UPPER PALEOZOIC HYDROCARBON IN LINQING DEPRESSION

作　　者：刘晨光 周瑶琪 梁钊 周腾飞 胡小成 张灿 

机构地区：[1]中国石油大学地球科学与技术学院,山东青岛266555

出　　处：《大庆石油地质与开发》2015年第5期12-17,共6页Petroleum Geology & Oilfield Development in Daqing

基　　金：国家油气重大专项"华北上古生界油气资源战略选区"(2009GYXQ17)

摘　　要：太行山和临清坳陷的地球动力学背景及构造演化史分析发现,太行山自侏罗纪开始的多次间歇性隆升与临清地区阶段性沉降之间存在隆-坳伴生的耦合关系。研究认为:临清地区的三次大规模差异性生烃均发生在太行山的隆升阶段,太行山的隆升作用使临清西部的上古生界烃源岩埋藏变深,烃源岩成熟度变高;临清东部地区中隆-新坳型和中坳-新坳型的生烃高峰期较晚,油气具有良好的成藏和保存条件,而中隆-新隆型只在早中三叠世发生过生烃作用,后期受燕山及喜山运动的强烈改造,油气的保存条件最为不利。The analyses of the geodynamic setting and tectonic evolution history of Taihang mountain and Linqing Depression show that there is uplift/subsidence coupling relationship between the multi-period intermittent uplifts begun with Taihang Jurassic period and Linqing subsidence ferent hydrocarbon generations happened at the uplift stages The researches show that Linqing three large-scale dif- of Taihang Mountain, and moreover the uplifts made Upper Paleozoic hydrocarbon source rocks in West Linqing deep, and furthermore promotes the hydrocarbon source rocks mature; the middle uplift-new depression and middle depression-new depression types of the hydrocarbon generation peaks happened rather late in East Linqing, thus the hydrocarbon reservoir accumulation and preserving conditions are pretty better, on the contrary, the generations of the middle uplift-new uplift type only occurred in Early and Middle Triassic Epoches, which are mostly unfavorable for the hydrocarbon preservation resulted from the serious reconstruction of Yanshan and Xishan movements.

关 键 词：太行山 临清坳陷 构造演化 隆坳耦合 上古生界 二次生烃 

分 类 号：TE122.1[石油与天然气工程—油气勘探]