Tianjian Liu

Xin Li

Chengcheng Luo

Yonghui Liu

Ning Wu

Jinhong Jiang

Boren Yang

Zhengyang Liu

Xinke Tang

Xuanzhi Zheng

The present disclosure provides a method for experimentally determining a critical sand-carrying gas velocity of a shale gas well. The method includes: collecting well structure and production data, calculating parameter ranges of a gas flow velocity and a liquid flow velocity; carrying out a physical simulation experiment of sand carrying in the shale gas well to obtain the sand holding capacity of the wellbore under different experimental conditions, and calculating a sand holding rate; by observing a change curve of the sand holding rate of the wellbore vs. the gas flow velocity, defining a turning point, and sensitively analyzing the influence of other experimental variables on the turning point, to calculate the critical sand-carrying production of the shale gas well under different conditions. Therefore, this calculation method is simple and applicable, and provides a theoretical basis for the optimization design of water drainage and gas production process.

Method for experimentally determining critical sand-carrying gas velocity of shale gas wells

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Chengdu, China

Tianjian Liu