The full-length paper compares the strengths, weaknesses, and limitaions of fracture modeling, porduction-data analysis (PDA), pressure-transient analysis (PTA), and numerical reservoir modeling in estimating effective fracture length and conductivity. The paper also evaluates how the complexities (in the hydraulic fracture) associated with non-Darcy flow, multiphase flow, and complexities (in the hydraulic fracture) associated with non-Darcy flow, multiphase flow, and complex geometries affect the results from the varius techniqes. The paper documents the significant differences in "effective" fracture that, in many fases, can result for each technique.
Author(s): Karen Bybee; JPT, and M.J. Mayerhofer; Pinnacle Technologies, C.L. Cipolla; Pinnacle Technologies, E.P.Lolon; Pinnacle Technologies