ITERATIVE TECHNIQUE TO DETERMINE RESERVOIR AND FRACTURE PROPERTIES USING BUILDUP DATA FOR HYDRAULICALLY FRACTURED WELLS.

This paper presents a new iterative technique for interpreting early time pressure buildup data for hydraulically fractured wells. The technique uses a modified square-root-of-time analysis with permeability and fracture length correction curves generated from Cinco's solution to flow equations for finite-conductivity fractures. The method is applicable to low permeability reservoirs where conventional methods of analysis are difficult to apply. The authors demonstrate how buildup tests dominated almost totally by bi-linear flow can be rigorously evaluated using their model. The model provides estimates of fracture conductivity, fracture length and formation permeability using data before pseudolinear flow is achieved.

ITERATIVE TECHNIQUE TO DETERMINE RESERVOIR AND FRACTURE PROPERTIES USING BUILDUP DATA FOR HYDRAULICALLY FRACTURED WELLS. Conference Paper