CAJ | 학술논문

运用地球化学研究手段,对文东地区沙二和沙三段原油、油砂和泥岩进行了饱和烃气相色谱-质谱分析,认为沙二和沙三段原油来自沙三段烃源岩;通过对研究区储层流体包裹体的分析,结合原油构造演化资料,对沙二和沙三段油藏的成藏时期进行了分析.沙二段油气藏主要成藏期为东营中后期及抬升剥蚀期,主成藏期为30～17 Ma;沙三段为两期油气充注,第一期为在东营初期(距今33～23 Ma),为主成藏期;第二期发生在明化镇期(距今10～0 Ma)之后.对文东地区成藏模式进行了分析,把文东地区油藏分为近洼原生型、油源断层控制的调整型和浅层次生型3类.
운용지구화학연구수단,대문동지구사이화사삼단원유、유사화니암진행료포화경기상색보-질보분석,인위사이화사삼단원유래자사삼단경원암;통과대연구구저층류체포과체적분석,결합원유구조연화자료,대사이화사삼단유장적성장시기진행료분석.사이단유기장주요성장기위동영중후기급태승박식기,주성장기위30～17 Ma;사삼단위량기유기충주,제일기위재동영초기(거금33～23 Ma),위주성장기;제이기발생재명화진기(거금10～0 Ma)지후.대문동지구성장모식진행료분석,파문동지구유장분위근와원생형、유원단층공제적조정형화천층차생형3류.
By analysis of saturated hydrocarbon GC MS of crude oil,oil sand and shale samples from member 2 and 3 of Xujiahe formation,in Wendong area,it is suggested that in the study area,hydrocarbons are derived from the source rocks of member 3 of Shahejie formation.In order to further determine the oil accumulation phases of member 2 and 3 of Shahejie formation,fluid inclusions in reservoir rock also are studied,combined with information on tectonic evolution,the results show that the main accumulation period of member 2 of Shahejie formation was the late period of Dongying formation deposition and the period of its uplift erosion,which was about 30 Ma～17 Ma,and that there are two phases of oil and gas filling for member 3 of Shahejie formation.The first phase,which is the main accumulation period was in the early Dongying formation deposition (33 Ma～23 Ma ago),the second phase took place after Minghuazhen formation deposition (10 Ma～0 Ma ago).Finally,based on the analysis of accumulation model,the reservoirs in the area are divided into three types,i.e.,sag near primary oil type,source and fault controlled adjusted oil type and shallow second oil type.