Improved Method for Predicting and Evaluating Water Yield Property

Under the background that the hydrogeological research of most coal mines lags behind the geological exploration, on the basis of the previous conventional water yield evaluation methods, taking into account the adequacy of data and the rationality of the evaluation, geological exploration logging d...

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Bibliographic Details
Published inMeitan Jishu = Coal Technology Vol. 42; no. 9; p. 152
Main Authors Lyu, Zhenmeng, Meng, Fanzhen, Lyu, Wenmao, Li, Liangning
Format Journal Article
LanguageChinese
Published Haerbin Ha'erbin Coal Mine Machinery Research Institute 01.01.2023
Subjects
Adequacy
Aquifers
Coal mines
Coal mining
Coring
Data logging
Drilling fluids
Geology
Hydrogeology
Limestone
Water yield
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Summary:Under the background that the hydrogeological research of most coal mines lags behind the geological exploration, on the basis of the previous conventional water yield evaluation methods, taking into account the adequacy of data and the rationality of the evaluation, geological exploration logging data are added to the water yield evaluation system, and an improved water yield prediction and evaluation method based on logging data and hydrogeological parameters is established.Taking the Ordovician limestone aquifer in the third, fifth and seventh mining areas of Dongtan coal mine as the research object,combined with limited hydrogeological data and rich geological exploration logging data, five factors including unit water inflow,drilling fluid leakage, core recovery rate, apparent resistivity and natural gamma value are selected as the main control factors, and an improved multi information evaluation model of Ordovician limestone aquifer water yield of Dongtan coal mine is established with logging data, the
ISSN:1008-8725
DOI:10.13301/j.cnki.ct.2023.09.030