Repair of a Failed Gas Lift Completion Using a 1500 Ft. Long 3 1/2 in. Coiled Tubing Insert Straddle

Abstract

Thts paper was sebcted for presentation by an SPE Program Commmtee following rewew of mfcfmatlon contained In an abstract Submtfed by Ilw author(s) Contents of tfw paper, as presented, have not bean rewewed by ttw Sc.aety d Petroleum Engineers and are subpd to correctIon by the author(s) The material, as presented does not necas=nfy refled any Posrtronof the SocBtV of Petroleum Emamecus, Its officers, or membws Papers presanted at SPE meetmgs are subjecl to pubhcaton revmw by EdWta! Ccfnmttees of the Souety cd Petroleum Eng!neers Perm!ssrm to cnpy IS restrutd to an abstract of no! more than 300 words Illustrations may not be copied The abstract should c.mtam wnsPIcuous acknowledgment of where and by whom the papar was pfesanled Wnfe Lbranan, SPE, P O Box 833S36 Rlchardscm TX 7S083-3826 U S A, fax 01-214-952-9435 Abstract Due to tubular corrosion of a gas lifted completion on the Arbroath field, the well was unable to flow due to the well shallow gas lifting through holes in the tubing. Since the Arbroath platform is a rigless platform, a full workover was considered a costly operation with prohibitive lead times. For that reason less costly and innovative through tubing repair options were considered to allow the well to be returned to production. After considering several options a coiled tubing straddle insert was chosen as the prefemed repair method to meet the success criteria for the job.The straddle consisted of 3 1/2" coil with hydraulic set packers at either end and was successfully run inside the existing 4 1/2" completion to seal off the corroded section of tubing allowing the well to return to production. This paper describes the repair options considered, the design, planning and installation of the coiled tubing straddle and the subsequent post repair well results.