东营凹陷北带砂砾岩扇体相-势控藏定量化研究———以利85区块为例
网络出版日期: 2010-03-15
Quantitative research of facies-potential controlled reservoir of glutenite fan: A case study from Li 85 block in northern slope zone of Dongying Sag
Online published: 2010-03-15
孙勤华 , 刘晓梅 , 刘建新 , 张继娟 . 东营凹陷北带砂砾岩扇体相-势控藏定量化研究———以利85区块为例[J]. 岩性油气藏, 2010 , 22(1) : 53 -58 . DOI: 10.3969/j.issn.1673-8926.2010.01.010
According to the theory of facies-potential controlling on hydrocarbon accumulation in Dongying Sag, in combination with related research, the mechanismof facies-potential controlling on pool formation is analyzed. Based on previous studies, a quantitative research on facies and fluid potential recovery during the hydrocarbon accumulation period is carried out and the recovered palaeopressure in the inclusion is deemed as “residual pressure” which was formed after the filling process completed. In combination with the characteristics of staged filling process during the hydrocarbon accumulation period, interrelations of all kinds of energies are discussed. An analogical method is used to study the reservoir pore structure in the hydrocarbon accumulation period. Taking the linked well section among Li 92, Li 54, and Li 853 in Li 85 block as an example, the equation of oil saturation is formulated, the oil saturation of this section in each hydrocarbon accumulation phase is calculated, and it is concluded that the main filling process was in the third phase for Li-85 block.
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