Stimulation for minimizing the total skin factor in carbonate reservoirs

Carbonate reservoir is characterized by natural fractures and vugs. Reservoir damage can be easily caused by drilling and completion processes that bring high total skin factor and additional pressure drop. To improve the well productivity, it is necessary to decompose the total skin factor and implement mechanism oriented actions to minimize the skin factor. To eliminate the reservoir damage, this work first aims at optimizing drilling and well completion technologies. Then, a fracture network acidizing technique that can remove “non-radial & network-like” damage by making full use of natural fractures and minimizing the skin factor is proposed to maximize the well productivity.