Open AccessFine Characterization of Sand Body in the Front of the Fluvial Delta: Taking the VII Oil Group of N21 Reservoir in Gasikule Oilfield as an Example
Author(s) -
Jun Sheng,
Jincheng Liu,
Qingshan Qi,
Xin Li,
Wulin Tan,
Xiangping Chai,
Guo Bin,
Xiaojing Yang,
Debin Yi,
Sen Lu,
Yanan Li,
Caiyan Zhang
Publication year - 2021
Publication title -
geofluids
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.44
H-Index - 56
eISSN - 1468-8123
pISSN - 1468-8115
DOI - 10.1155/2021/6671855
Subject(s) - sedimentary rock , geology , sedimentary depositional environment , petrology , fluvial , sedimentary structures , geochemistry , geotechnical engineering , geomorphology , structural basin
Taking the VII oil group of N21 reservoir in Gasikule Oilfield as an example, the sedimentary time unit was divided into the barrier layer, interbed, and sand bed by analyzing the sedimentary system and sand body development model in this paper. The single sand body was analyzed for the sand bed time unit. The residual muddy intercalation period division theory was proposed for the first time to divide the sedimentary periods of the sedimentary time unit of the sand bed. Finally, a new “sandwich” layer point coincidence modeling technology was proposed to characterize the sedimentary time units of a barrier layer accurately and interbed and finely describe the sedimentary time unit of the multiperiod sand bed.