Water-bearing layer stratification characteristics of top and bottom slabs and water-richness analysis based on borehole information
A deep excavation study of geological borehole data was carried out for the fine analysis of aquifers and water-richness of the aquifer group of the coal system strata.A theoretical analysis of the aquifer information contained in various borehole data factors was conducted.The lithological comparison of each sub-layer and the water-rich characteristics of each sub-layer were analyzed,and the target layers and key drilling areas for water release drilling were determined.Based on the information of lithology,thickness,core fracture and solution gap description,whether the mud leakage is large or not,and whether the test section is pumped or not,the amount of water storage and hydraulic conductivity voids in the formation,continuity,and the limitation of the upper and lower water separations were analyzed,and a more detailed understanding of the dynamic and static water storage capacity of the aquifer was obtained,which greatly improved the fineness of the water-rich a-nalysis.It provides practical guidance for the selection of the target layer for water release drilling and the determination of the final hole location.
aquiferwater-richnessdrillstratigraphic divisionslurry leakagepumping test holes
NETL
NSTL
万方数据
