辽河盆地海月油田潜山油气藏及其成藏动力学特征  

Buried hill reservoirs and its hydrocarbon accumulation dynamics in Haiyue oilfield of Liaohe Basin

作　　者：王乔[1] 韩亚杰[1] 刘颖[2] WANG Qiao;HAN Ya-jie;LIU Ying(Geological Museum,Jilin University,Changchun 130026,China;Liaoning Provincial College of Vocational Technology in Economics,Shenyang 110122,China)

机构地区：[1]吉林大学地质博物馆,长春130026 [2]辽宁经济职业技术学院,沈阳110122

出　　处：《世界地质》2020年第3期601-609,共9页World Geology

基　　金：中国地质调查局项目(1212011120730)。

摘　　要：针对海月油田潜山油气藏勘探程度、研究程度较低的问题,综合运用钻井、测井及分析化验等资料,从烃源岩、储层、盖层、油气运移通道及成藏配置关系等方面,对潜山的油气成藏条件进行了详尽分析。研究表明,海月潜山紧邻西部凹陷、东部凹陷两大生油洼陷,油源充足;碳酸盐岩储层包括原生孔隙、裂缝及溶蚀孔洞三类主要储集空间类型,为油气聚集提供有利场所;潜山上覆的沙一、二段和东三段厚层泥岩,是良好的区域性盖层;油气运移通道主要由油源断层、不整合面及新生界疏导砂体组成。结合海月油田成藏条件研究,探讨其成藏动力学特征,确定本区潜山油气藏属于他源半封闭型成藏动力学系统。Aiming at the problem of the exploration and research on the buried hill of Haiyue oilfield are insufficient,the hydrocarbon accumulation conditions of Haiyue buried hill reservoirs are analyzed comprehensively from source rock,reservoir,cap rock,oil and gas migration pathway and their assemblage using the data of drilling,logging and test.The result shows that Haiyue buried hill is close to the East and West sags,which are the rich hydrocarbon generating depressions.The primary types of carbonate reservoirs space include primary hole,fissure and corrosive cave,which provide favorable spaces for hydrocarbon accumulation.The thick-bedded E 3 s 1+2 and E 3 d 3 mudstone overlying the buried hill provides regional cap rocks for the buried hill reservoirs.The main migration pathway for oil and gas consist of faults connecting to the sources rocks,unconformity and Cenozoic sandbodies.Combining the hydrocarbon accumulation conditions of Haiyue oilfield and pool-forming dynamics,it is concluded that the Haiyue buried hill reservoirs belongs to exotic-source,half-seal petroleum accumulation dynamic system.

关 键 词：潜山油气藏 成藏条件 成藏动力学 海月油田 

分 类 号：P618.13[天文地球—矿床学]