黄骅坳陷石炭—二叠纪煤成烃演化的构造控制  

Tectonic Control on the Hydrocarbon-generation Evolution of Permo-Carboniferous Coal in Huanghua Depression

作　　者：朱炎铭[1] 秦勇[1] 王猛[1] 崔新瑞[1] 赵洪[1] 张聪[1] 

机构地区：[1]中国矿业大学资源与地球科学学院,江苏徐州221008

出　　处：《中国矿业大学学报》2006年第3期283-287,共5页Journal of China University of Mining & Technology

基　　金：中国石油天然气总公司"九五"科技工程项目(970206)

摘　　要：黄骅坳陷的石炭—二叠纪煤系自沉积以来,遭受了复杂的构造变动,煤系源岩经历了不均一的抬升、变形、埋藏,导致了有机质生烃演化的不连续性和分阶段性.为了合理地评价黄骅坳陷石炭—二叠纪煤系的生烃潜力,本文以构造演化为主线,运用现代油气地质理论和现代的分析测试手段,研究了黄骅坳陷上古生界烃源岩的埋藏史、受热史和成熟-生烃史.研究结果揭示了本区石炭—二叠系煤系源岩构造控制下的煤成烃演化历程,阐明了上古生界生烃作用发生的构造期次,生烃强度和时空分异特征,指出了黄骅坳陷石炭二叠系烃源岩曾发生过3次重要的生烃作用过程,并得出了烃源岩最大埋深主要发生在喜马拉雅期,超过了3 500 m,地机质最高相对生轻量超过50 mg/g.The Permo-Carboniferous source rocks has been meted with many times and complicated tectonic alteration, and come through inhomogeneous uplifted, deformed, buried depth or magma effect in the Huanghua Depression since its sediment. Which brought on the its discontinuity and grading of hydrocarbon generation evolution. Taking the researches on the tectonic evolution as a basic approach. The tectonic-burial history, tectonic-heated history and tectonichydrocarbon-generation history of Permo-Carboniferous source rocks in the Huanghua Depression were studied using modern oil ＆ gas geology theories and modern analysis or measurement technologies. The hydrocarbon-generation evolution process under the tectonic control and the tectonic episodes, strength of hydrocarbon-generation and time-spatial distribution of the Permo-Carboniferous coal series were revealed. The study show that three times of hydrocarbon-generation processes had taken place since the late Paleozoic formation in Huanghua Depression, and the most baried depth of Permo-Carboniferous took place in the Cenozoic, which exceed 3 500 m, and the maximum relative hydrocarbon-generation of organic mcterial was over 50 mg/g.

关 键 词：石炭二叠系 煤系 成烃演化 构造控制 

分 类 号：P618.13[天文地球—矿床学]