FIELD CASES OF COST-EFFICIENT SLICKLINE WELL INTERVENTIONS

The comparison of today's slickline capabilities with its early usage for routine remedial workovers and maintenance best illustrates the si gnificant advances that have occurred within slickline technology. Tod ay, for example, slickline can be used to set and retrieve slickline-r etrievable safety Valves or plugs; open and close downhole circulating devices; retrieve accurate depth/time data for correlation with memor y production surveys for well diagnostics (problem identification), re servoir description, or flow analysis provide accurate correlation of tubing casing collars and pull and run multiple flow controls, set pac kers. and other downhole equipment without explosives, set mono-bore t ools, and perform other well interventions that are dependent on measu rement accuracy. This expansion is overwhelming when considering that less than a decade ago slickline was considered only for mechanical we ll workovers. This paper discusses the newly developed technology that allows slickline to economically provide alternatives economically to services that were traditionally reserved for more costly options. Ca se histories illustrate the enlarged scope of services and how the equ ipment combines to provide the innovative low cost service options tha t the industry has been seeking.