Robert Montgomery, Anadarko
Bert Leniek and Robert Lannom, Zeitecs, Inc.
James F. Lea, Oil & Gas Consultant
Coiled Tubing has been used in oil and gas operations for many years, and has proven to be a very efficient, reliable, and economic tool. The coiled tubing technology has been utilized for drilling, completions, workover, stimulation, and plugging & abandonment work for decades, with considerable success. Coiled tubing for use in artificial lift operations has been somewhat limited, but in the economic environment existing today, new opportunities have been recognized. This paper is focused on three main segments: CT-Lift in normal, rod-pumped wells where sand and scale may be problematic; CT-Lift in monobore wells or where damaged casing may preclude other options; and CT-Lift in gas
well deliquification, where the coiled tubing essentially provides lift options both as a velocity string and as a reciprocating pump string to lift liquids which accumulate at the bottom of a well.