Coiled-tubing drilling technologies target niche markets
Coiled-tubing drilling (CTD) has been successfully used by ARCO, BP Amoco PLC, and Petroleum Development Oman (PDO) to access hard-to-reach, overlooked, and depleted reservoirs from existing wellbores.
Coiled-tubing tools key successful Brunei acid jobs
Brunei Shell Petroleum Co. Sdn Bhd. increased oil producing rates from its acid stimulation program, offshore Brunei, by incorporating permanently installed downhole sliding-sleeve circulation devices (SSCDs), straddle tools, and coiled-tubing stingers for gravel-packed zones.
New design simplifies coiled-tubing operations
Schlumberger Oilfield Services' well-intervention business unit expects a new coiled-tubing unit design, called CT Express, to reduce rig-up time, improve safety, and significantly improve efficiency and reliability of such operations as nitrogen lifts, sand cleanouts, acidizing, and fracturing.
Microhole technology lowers reservoir exploration, characterization costs
Development of technology to drill small-diameter boreholes and the imminent marriage of this technology with micro-instrumentation can result in low-cost, deep wells for both exploration and instrumentation access.