Productivity of Fractured Gas-Condensate Wells: A Case Study of the Smorbukk Field

Abstract

This paper describes a systematic study of the effect of condensate blockage on the productivity index (PI) of hydraulically fractured wells in a complex, highly heterogeneous reservoir containing rich gas condensate. The study was performed for the Smorbukk field offshore Norway with sophisticated simulation models. The techniques used are general, and the study findings apply as guidelines in general to fractured gas-condensate wells. Proppant fracturing is capable of restoring most of the productivity lost owing to liquid buildup. The effectiveness depends primarily on the reservoir heterogeneity, fracture length and conductivity. The relative benefits of fracturing decrease in highly heterogeneous formations.

The Effect of Hydraulic Fracturing on the Performance of Gas Condensate Systems

“…To evaluate the impact of positive coupling and/or negative inertia on flow performance, the Velocity Dependent Relative Permeability (VDRP) option of ECLIPSE300 was used. Rate dependent core exponent data for matrix system were determined from values existed in the literature (Settari et al, 1996;Henderson et al, 2000;Jamiolahmady et al, 2000;Jamiolahmady et al, 2003). We considered a fracture with a proppant porosity of 30% and permeability of 15 D. The fracture width and length were varied between 1 and 10 mm and between 150 and 500 ft, respectively.…”

Preparation of the modified limestone possessing higher permeability of gas well based on fluorinated silica: Effect of catalyst

“…Among these methods, hydraulic fracturing, gas cycling and solvent injection such as methanol have been suggested by many researchers [3][4][5]. An interesting successful method has been proposed by altering the wettability of the rock from liquidwetting to intermediate gas-wetting.…”

Mobility ratio, relative permeability and sweep efficiency of supercritical CO2 and methane injection to enhance natural gas and condensate recovery: Coreflooding experimentation

“…Several methods have been proposed in the literature to restore gas production rates after condensate dropout. These methods suggest either changing the phase behaviour of the gas condensate fluids or maintaining reservoir pressure above the dewpoint pressure; including gas cycling, waterflooding, methanol treatments, wettability alteration, or hydraulic fracturing (Henderson et al, 1991;Barnum et al, 1995;Fishlock and Probert, 1996;Settari et al, 1996;Luo et al, 2000;Kumar, 2000;Li and Firoozabadi, 2000;Al-Anzi et al, 2004).…”