油气地质与采收率2013,Vol.20Issue(2):11-14,4.
东营凹陷牛庄洼陷地层流体演化与油气成藏
Formation fluid evolution and oil accumulation in Niuzhuang sag, Dongying depression
摘要
Abstract
The activation of formation water has important domination to the generation, migration, accumulation and loss of oil and gas. And, the evolution of formation water is closely related to the accumulation process of oil and gas. On the basis of analysis of the formation water distribution characteristics of Niuzhuang sag, and under the guidance of fliud dynamics, three types of enclosure correlating with fluid activation are classified through saline enclosure petrography observation. The three main formation fluid active stages which are end of Ed, deposition period of fig and deposition period of Nm-Quatemary period are classified in respect of homogenization temperature and salinity measurement of salt-water inclusion in sand rock reservoir combined with the study of thermal evolution history of Niuzhuang sag in this paper. The palae-salinity of different formation fluid active stages is recovered by means of fluid inclusions analysis technique, and the palae-pressure of different formation fluid active stages is recovered by fluid inclusions methane content calculation. The palae-salinity of the evening of Ed period increased, and the palae-salinity of Ng period declined. The palae-pressure of the end of Ed period declined, the palae-pressure of Ng period increased. The ancient fluid evolution model and the dynamic model of formation water activation and oil accumulation are accomplished finally.关键词
地层流体/活动期次/古流体矿化度/古流体压力/牛庄洼陷Key words
formation fluid/ active stages/ palae-salinity/ palae-pressure/ Niuzhuang sag分类
能源科技引用本文复制引用
解玉宝..东营凹陷牛庄洼陷地层流体演化与油气成藏[J].油气地质与采收率,2013,20(2):11-14,4.基金项目
国家科技重大专项"渤海湾盆地精细勘探关键技术"(2011ZX05006) (2011ZX05006)