Increasing Casing Collapse Resistance Against Salt-Induced Loads

Abstract

ABSTRACT Casing collapse opposite Salt formations is a real field problem. Several solutions are proposed for this problem. This paper presents an analysis of three of these solutions, namely thick-walled pipe, high collapse resistance casing and multiple strings packed with cement. The strength of each solution and its effects on the drilling and completion practices are also discussed. The mechanical resistances to uniform and point loads of the multiple strings and thick walled pipe are superior to those of a high collapse solitary string.