Evaluation of selective vs. point-source perforating for hydraulic fracturing

"Select-fire" (SF) and "point-source" (PS) perforating completions were use d to fracture the Reef Ridge diatomite formation in the Midway-Sunset field , Kern county, California. Fracturing treatment analysis and production his tory matching were used to evaluate the reservoir and fracturing parameters for both completion types. Single fractures were created with the PS compl etions, and multiple fractures resulted from many of the SF completions. Descriptions of the reservoir, production history, and fracturing technique s used leading up to this study are presented. Fracturing treatment analysi s and production history matching were used to evaluate the reservoir and f racturing parameters for both completion types. The work showed that single fractures were created with the PS completions, and multiple fractures resulted from many of the SF completions. A good co rrelation was developed between productivity and the product of formation p ermeability, net fracture height, bottomhole pressure, and propped fracture length. Results supported the continued development of 10 wells using the PS concept with a more efficient treatment design, resulting in substantial cost savings.