A UNIQUE COST EFFECTIVE TECHNIQUE FOR ONE TRIP SELECTIVE GRAVEL PACKING OVER MULTIPLE ZONES: Dacion Field Case Study

摘要

Selective gravel pack completions of multiple zones presentthe oil industry with major challenges and expenses. Currentpractices have two key problems associated with them: (1)they are limited to zones separated by 30 to 50 feet (dependingon the treatment type) due to the length of the assemblies (2)they have proven to have a higher risk of installation failure.This paper describes equipment and procedures for gravelpacking multiple zones in a single completion with total zonalisolation for spacing as small as 5 feet. Zones can beproduced either separately or co-mingled. Risk of executionfailure is significantly lower than with conventional stackedpacks. Production data is presented which verifies completezonal isolation, improved productivity, and reduced costs fromthis technique.