SLIM-HOLE CASING PROGRAM ADAPTED TO HORIZONTAL WELL

Leigh Foster ARCO British Ltd. Guildford, England A type of slim-hole well design reduced the cost of drilling a horizontal well in the southern North Sea. The basic slim-hole drilling and casing program was similar to that used in conventional directional wells in the field, but with slight modifications for drilling with logging-while-drilling (LWD) tools and running production liners.

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