SYSTEM AND METHOD FOR RECOMPLETION OF OLD WELLS

摘要

A system for recompletion of an old well (24) in order to achieve an increased oil recovery from a reservoir (26), said system comprising a pipe (27) inserted into the old well (24), at least two constrictors or swell packers (29) being arranged along the length of the recompleted well (24, 27) and defining a well section between two successive constrictors or swell packers (29), said system further comprising at least one autonomous valve (2) arranged in said well section defined between said two successive swell packers or constrictors (29). Disclosed is also a method for recompletion of an old well (24) in order to achieve an increased oil recovery from a reservoir (26).