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Monitoring and Measuring Hydraulic Fracturing Growth During Preconditioning of a Roof Rock over a Coal Longwall Panel
[chapter]
2013
Effective and Sustainable Hydraulic Fracturing
Preserved Fulltext
Narrabri Coal Operations is longwall mining coal directly below a to m thick conglomerate sequence expected to be capable of producing a windblast upon first caving at longwall startup and producing periodic weighting during regular mining. Site characterisation and field trials were undertaken to evaluate hydraulic fracturing as a method to precondition the conglomerate strata sufficiently to promote normal caving behaviour at longwall startup and reduce the severity of periodic weighting.
doi:10.5772/56325
fatcat:ucpcnsqtgvd3zm7v7c3wkijh3a