The gas content of the coal seam is an important indicator for the evaluation of coalbed meth-ane area selection,and is also a crucial parameter for the calculation of coalbed methane reserves.This paper takes the No.4 Coal Seam of Hujiahe Minefield as a case study,utilizes the borehole test data of coalbed methane wells,and identifies the main control factors from many factors affecting gas content through a single fact analysis.By using the multivariate stepwise regression method combined with the main control factors,a prediction model for the coal gas content of the No.4 Coal Seam is established.The results show that the gas content of Hujiagou No.4 Coal Seam is primarily influenced by the coal seam depth and thickness.After calculating,the predicted values are consistent with the measured val-ues,which provides important guidance for the evaluation and development of coalbed methane resources in the study area.
Gas content of coal seamsingle factor analysismultiple stepwise regression analysispre-dictive modelHujiahe field
万方数据
