库车前陆盆地烃源岩和烃类成熟度及其地质意义

李梅;包建平;汪海;张秋茶;郑多明;卢玉红;黄龙藏;

doi:10.11764/j.issn.1672-1926.2004.04.367

天然气地球科学 >

2004 , Vol. 15 >Issue 4: 367 - 378

DOI: https://doi.org/10.11764/j.issn.1672-1926.2004.04.367

天然气地质学

库车前陆盆地烃源岩和烃类成熟度及其地质意义

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[1]中国石油塔里木油田分公司勘探开发研究院; [2]长江大学; 新疆库尔勒; 湖北荆州;

网络出版日期: 2004-08-20

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THE ANALYSIS ON THE MATURITY PARAMETERS OF SOURCE ROCK ANDHYDROCARBONS IN KUCHE FORELAND BASIN OF TARIM BASIN

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1. Exploration and Development Research Institute of Tarim Oilfield Company, CNPC, Kuerle 841000, China;2. Yangtze University, Jingzhou 434102, China

Online published: 2004-08-20

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摘要

通过分析库车前陆盆地的油气成熟度、烃源岩在主生烃期形成的烃类聚集和库车坳陷特殊的挤压地质条件,指出了库车坳陷陆相烃源岩的主要生油和主要生气的阶段,还指出了最主要的成烃期为康村期至库车期(RO为0.6%～2.0%)。对库车前陆盆地进行了原型恢复(原型盆地是现今的1.5倍,现今南北宽20～67km)和对有机质生烃潜力进行了恢复(恢复到好烃源岩程度)。认为该前陆盆地烃源岩性质与中亚一些盆地具有可比性,库车冲断带上的6个古构造圈闭与主生烃期相匹配,所捕获的油气是库车坳陷整体富气和区带富油的主要因素,库车盆地具有形成大中型油气田的地质条件。

关键词： 库车前陆盆地; 成熟度; 主生烃期; 古构造; 生烃潜力; 原型盆地; 恢复系数; 烃源岩评价

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李梅;包建平;汪海;张秋茶;郑多明;卢玉红;黄龙藏; . 库车前陆盆地烃源岩和烃类成熟度及其地质意义[J]. 天然气地球科学, 2004 , 15(4) : 367 -378 . DOI: 10.11764/j.issn.1672-1926.2004.04.367

Abstract

By studying the maturity of the oil, gas and source rock characteristics in Kuche foreland basin, it is concluded that the main generatin hydrocarbons were the period of the early Kancun, then in the scope of petroleum system, through restoreing residual organic potential and prototype basin, it is concluded that Kuche foreland basin has favourable geochemical conditions of forming the giant and great oil-gas trap.The main generating gas period of Kuche foreland matched with the period forming paleo-structumer.

Key words： Kuche foreland basin; Maturity; Main stage of oil generation; Paleotectonic; Hydrocarbon generating potential; Prototype basin; Recovery coeffecient; Evaluation of source rock.

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