Application of Gas shut-off technic in horizontal wells using semi-intelligent completion

Abstract

Abstract The recovery assisted by gas injection in order to maintain the reservoir pressure of the Hassi Messaoud field to contribute effectively in the productivity improvement of oil producing wells by increasing the flow of oil. But this process of recovery is the major reason of the GOR rise in MDZ627 well and even in the other wells of the zone. by analyses of the various factors that may be the cause of this problem. The PLT production data and the gauging tests showed that 49% of the gas produced comes from the D4 drain and 51% from the D5. The implementation of a semi-intelligent completion has shown remarkable efficiency in eliminating the breakthrough and restoring the initial state of the well. Keywords: Breakthrough, GOR, semi-intelligent completion, throughput, productivity index. III