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. Click here to enlarge imageFig. 1 illustrates a typical dual-zone well in which both tubing strings are fitted with SSCDs as permanent completion components. The SSCDs are designed to last for the production life of the well.SSCDs are necessary for receiving straddle tools and coiled-tubing stingers that are used for isolating perforations and controlling or directing acid pumped through coiled tubing.These tools, ...

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