Offshore High Temperature Carbonate Reservoir Acid Fracturing Research and Application

摘要

This paper describe lost control acid and divert acid used for the Bohai Bay Nanpu oilfield Ordovician carbonate reservoir,which is a deep, high temperature profile, natural fractured, solution pore developed,anisotropy. This forma tion used to matrix acidizing with gelled acid yet have pool response, and have a series of developing problems. Those fluid system have retardance under high temperature and can be used to long interval well -distributed acid frac. The fluid system is successfully applied on the well of Nanpu 283. The positive effect as well as the experience for acid frac turing in this type formation are obtained.