Sand Production on Water injectors: How Bad Can It Get?

摘要

In this paper we present a field case based upon a reservoir oper- ated by Statoil in the Norwegian Sea. The case concerns a series of water injectors-i.e., both subsea and platform-that underwent extreme losses of injectivity over short periods of time. When worked over, the wells showed extreme amounts of sand fill that sometimes were several hundreds of meters above the top perfo- ration. The link between well shut-ins and injectivity losses was clear right form the onset of the study.