China University of Petroleum

Zhizhen Lin

Hao Chen

Wen Liu

Feng Luo

Borui Li

Xiliang Liu

Xinyu Qi

Mingsheng Zuo

Baoxi Yang

Linxi Yang

Weiming Cheng

Pengbo Li

Ruwei Zhang

Yang Li

Lijun Zhang

Qing Chang

Xianhong Tan

Renfeng Yang

Qiuting Li

Xiaofeng Tian

A minimum miscible pressure prediction method for a CO-crude oil system considering reservoir well spacing is provided, including: obtaining characteristic parameters of each component of crude oil; based on the characteristic parameters of each component of the crude oil, obtaining corresponding bubble point or dew point pressures, as well as corresponding oil-gas interfacial tension, oil phase and gas phase densities, and viscosities under different injected gas contents; based on the corresponding bubble point or dew point pressures, as well as the corresponding oil-gas interfacial tension, oil phase and gas phase densities, and viscosities under different injected gas contents, constructing a minimum miscible pressure prediction model for the CO-crude oil system considering the reservoir well spacing; and based on the minimum miscible pressure prediction model for the CO-crude oil system considering the reservoir well spacing, obtaining minimum miscible pressure values for the CO-crude oil system under different reservoir well spacing.

Minimum miscible pressure prediction method for CO-crude oil system considering reservoir well spacing

A method and a system for optimization of development by carbon dioxide injection based on incomplete miscibility characteristics are provided, where the method includes following steps: building a three-dimensional reservoir model based on laboratory experiments and reservoir values, where the three-dimensional reservoir model includes: a fluid model and a reservoir model; based on the three-dimensional reservoir model, obtaining incomplete miscibility characteristics of reservoir development by carbon dioxide injection; and completing whole life cycle optimization development of carbon dioxide injection based on the incomplete miscibility characteristics.

Method and system for optimization of development by carbon dioxide injection based on incomplete miscibility characteristics

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Zhizhen Lin