REPacker System Prevented Annular Flow Paths ... - Baker Hughes

The REPacker packer is a self-actuating,swelling elastomer that eliminates annularflow in either openhole or cased holeapplications. The packer was manufacturedon a casing joint that matches thespecifications of the liner used in thewell. A special end ring protects the swellrubber, allowing it to be run throughtight holes with rotation or deviated wellconditions, or to support high pumpingrate applications if required.Baker Hughes also recommended usingthe EZReam casing shoe, which allowsreaming longer intervals through the mostchallenging and severely compromisedboreholes. It is the industry’s only casing/liner shoe to offer a secondary bypassport that allows normal circulation orcementing to continue when ports plug.The TORXS system has a high-torsion linerhanger capacity capable of performingliner drilling or heavy working lineroperations through difficult hole sections.The TORXS system has a better bypassarea and has a hydraulically balancedsystem that eliminates presetting whilecirculating in the hole or during cementingplacement. This represented an advantagein the liner installation process in this well.The customer picked up the Baker HughesEZReam casing shoe with the shoe-tracksystem in 7 5 /8-in. casing, made up the7 5 /8-in. x 9 5 /8-in. TORXS liner hanger systemwith the 7 5 /8-in. x 8.3-in. outside diameter(OD) x 20-ft oil-swell REPacker packer, andran the system into the wellbore with 5-in.heavyweight drillpipe at 2 to 3 minutesper stand. The operation was stopped at9,994 ft (3047 m) and parameters werechecked with the following results: pump6 BPM at 700 psi (48.2 bar) and 8 BPMat 1,000 psi (68.9 bar). The operatorattempted to take rotation parameterswith the top drive. At 16,000 lb/ft (2212kg/m) torque, it stalled and increased to20,000 lb/ft (2765 kg/m) torque at 15 RPMwhile it was at 40 RPM picking the stringup. The operators continued going downin the hole, checking weight until reachingthe total depth at 10,878 ft (3315 m)without any problems.The overall results of the operation werethat potential flow paths created bychanneling were sealed, so the integrity ofprimary cement job was enhanced and afuture remedial cement job was avoided.Because no additional running tools wereneeded to activate the openhole packers,operational time and rig time werereduced, saving costs.Afterwards, an element swell test wasthen performed to ensure the compatibilitybetween the REPacker system and the oilwellbore fluid. The test was performed ata Baker Hughes lab in Mexico and also atthe rig during the job.www.bakerhughes.comDisclaimer of Liability: This information is provided for general information purposes only and is believed to be accurate as of the date hereof; however, Baker Hughes Incorporated and its affiliates donot make any warranties or representations of any kind regarding the information and disclaim all express and implied warranties or representations to the fullest extent permissible by law, includingthose of merchantability, fitness for a particular purpose or use, title, non-infringement, accuracy, correctness or completeness of the information provided herein. All information is furnished “as is”and without any license to distribute. The user agrees to assume all liabilities related to the use of or reliance on such information. BAKER HUGHES INCORPORATED AND ITS AFFILIATES SHALL NOT BELIABLE FOR ANY DIRECT, INDIRECT, SPECIAL, PUNITIVE, EXEMPLARY OR CONSEQUENTIAL DAMAGES FROM ANY CAUSE WHATSOEVER INCLUDING BUT NOT LIMITED TO ITS NEGLIGENCE.© 2012 Baker Hughes Incorporated. All rights reserved. 37313 11/2012