周铁锁
ZHOU Tiesuo

• 1:中国石油辽河油田公司

摘要(Abstract)：

为探讨中—新元古界油气勘探潜力,基于露头和探井资料,利用有机地球化学分析技术,研究了辽西地区中—新元古界源岩发育特征,确定了油气来源和成藏期次。结果表明:辽西地区中—新元古界发育洪水庄组、铁岭组和下马岭组等3套烃源岩,其中洪水庄组有机质含量较高,为Ⅰ型干酪根,处于成熟阶段,应为主力烃源岩;中—新元古界油气主要来源于洪水庄组烃源岩,H1井的龙山组原油来自洪水庄组,表明油气具有原生性;中—新元古界油气成藏至少有2期,早白垩纪的晚期油气成藏意义重大。
In order to explore the petroleum potentials of Middle-Upper Proterozoic Group,based on the data of outcrops and explorational wells,the characteristics of the source rocks for the group in Liaoxi area are studied by means of the analyzing technique of organic geochemistry,and moreover the hydrocarbon sources and period-times of the reservoir accumulation are determined.The results show that there are three sets of source rocks are developed in the group:Hongshuizhuang,Tieling and Xiamaling Formations.Among these formations,the organic matter content is much higher for the former formation and belongs to Type-I kerogen,so the rocks in the formation are considered as the main hydrocarbon source rocks;the petroleum in the group is generally from the source rocks in the above formation,the crude oil in Longshan Formation for Well H1 is from Hongshuizhuang Formation,this means that the petroleum possesses the property of original generation;there are at least two period-times of hydrocarbon accumulation for the group,and furthermore the significance of the accumulation in the later period of Early Cretaceous is great and important.

关键词(KeyWords)： 辽西地区;中—新元古界;油源;成藏期次;包裹体;埋藏史
Liaoxi area;Middle-Upper Proterozoic Group;oil source;period and time of reservoir accumulation;inclusion;burial history

Abstract:

Keywords:

基金项目(Foundation): 中国石油天然气股份有限公司重大科技攻关项目“辽河探区有利预探区带综合评价和目标优选”(2008D0702-02)

作者(Author): 周铁锁
ZHOU Tiesuo

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