摘要
以东营凹陷的梁家楼油田和胜坨油田为例,探讨了油田水化学研究在油源对比和油气运移研究中的作用。研究结果表明:这2个油田的水化学分区和油源分区较为一致,油田水以较低矿化度NaHCO_3型为主的区块,其原油主要源自沙三段下亚段烃源岩;而油田水以较高矿化度CaCl_2型为主的区块,其原油主要源于沙四段上亚段烃源岩。根据构造和断裂发育特征分析认为,油田水带有明确的油源信息,可作为油源分析和油气运移研究的辅助证据。
Liangjialou and Shengtuo Oilfields in Dongying Depression were taken as examples for the application of the chemistry research of oilfield water on the oil source analysis and petroleum migration.It shows that the field water division and oil source division are relatively similar in these two oilfields.In the areas dominated by NaHCO_3 type oilfield water with relatively low salinity,the oils were mainly from the lower part of Es_3 member.While in the areas dominated by CaCl_2 type oilfield water of relatively high salinity,the oils were mainly from the upper part of Es_4 member.According to the tectonic and faulting characteristics, the field water carries specific oil source information,which can be used in oil source analysis and hydrocarbon migration research.
出处
《油气地质与采收率》
CAS
CSCD
北大核心
2009年第3期38-40,共3页
Petroleum Geology and Recovery Efficiency
基金
中国石化重点科技攻关项目"山东探区大中型气田形成条件及勘探目标评价"(P04025)
关键词
水化学类型
总矿化度
油源对比
胜坨油田
东营凹陷
water chemical type
total salinity
oil source correlation
Dongying Depression
Shengtuo Oilfield
