J.C. Burtner, Baker Oil Tools
The term "dual completion" refers to a method of producing two zones through the same well bore without co-mingling of fluids. A dual completion is one that promises greater economy. During recent years the percentage of such completions has been greatly accelerated, due to mounting development costs. Because of the success of dual completions, and the favorable economic aspect, there is no reason to predict a downward trend. Equipment manufacturers are constantly redesigning and improving their equipment to meet the demands of equipment applications. The purpose of this paper is to discuss various types of dual completion installations, beginning with the very basic type and progressing to the later types, which are becoming more commonly used.