Proppant embedding-based optimal design method for fracturing coalbed methane wells in Qingshui basin.

ABSTRACT: Fracturing design needs to consider the effect of proppant embedding as the production decreases rapidly due to proppant embedding after fracturing of coalbed methane wells. Coal fracture conductivity experiments were carried out to analyze the changes in coal fracture conductivity due to proppant embedding. A model of coal fracture conductivity was established considering proppant embedding. A proppant index method, which considers the dynamic change of conductivity over time, was adopted to establish a proppant embedding-based optimal design method for fracturing coal bed methane wells. The optimal design of coalbed methane wells in the southern block of Qinshui Basin was carried out. The results show that the fracture conductivity decreased with the increase of formation closure pressur

SUBMITTER: Chen Z 

PROVIDER: S-EPMC11903771 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature