Gravity Flow Deposit Distribution Characteristics based on Sedimentary Experiment
doi: 10.14027/j.issn.1000-0550.2018.109
- Received Date: 2017-07-20
- Rev Recd Date: 2018-02-03
- Publish Date: 2019-02-10
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Key words:
- Binnan oilfield /
- sedimentary experiment /
- fluid properties conversion /
- sedimentary sequence
Abstract: The distribution law of sand bodies in gravity flow sedimentary systems is very complex. By gravity flow fluid experiments, the cause of formation and the distribution law of different lithofacies have been determined. On this basis, through core observation, logging, and logging data analysis in Binnan oilfield sand, three subsections of gravity flow sand-body distribution rules were identified. The results show that: 1) Plastic fluid dilution and the particle support mechanism show complex changes in the process of movement, leading to a variety of fluid flows in which plastic fluid diluted to a certain extent will be converted into liquid; 2) The vertical evolution and lateral variation of the sequence of gravity flow deposits are the result of fluid property evolution, or in other words, the complex gravity flow sequence observed in geological records is the result of fluid property transformation; 3) The organic combination of gravity flow vertical sequence and a sedimentary model is the key to predicting sand distribution. Under the guidance of the model constructed in this research, the distribution of lithofacies was confirmed in in Binnan oilfield.
Citation: | LI CunLei, ZUO XiaoChun, WANG LingLing, CHEN PanPan, ZHANG JinLiang, LIU JianMei, GAO Peng. Gravity Flow Deposit Distribution Characteristics based on Sedimentary Experiment[J]. Acta Sedimentologica Sinica, 2019, 37(1): 86-93. doi: 10.14027/j.issn.1000-0550.2018.109 |