ROUTINE MAINTENANCE PROLONGS ESP TIME BETWEEN FAILURES
Terry Hurst Chevron U.S.A. Production Co. Snyder, Tex. Robert W. Lannom, David L. Divine E.S.P. Inc. Midland, Tex. Routine maintenance of electric submersible motors (ESPS) significantly lengthened the mean time between motor failures (MTBF), decreased operating costs, and extended motor run life in the Sacroc Unit of the Kelly-Snyder field in West Texas (Fig. 1).