Acidizing a horizontal openhole completion with coiled tubing

A sandstone acidizing treatment was performed on a 1,550-ft horizontal openhole gravel-packed completion to restore productivity following impairment by fines migration. The treatment was placed by use of coiled tubing (CT) on a floating production platform and pumped from a marine stimulation vessel. Pre- and post-job production logs were run to verify treatment effectiveness. The full-length paper focuses on problem identification, treatment design, and measurement of results.