Dual completions provide production alternative in Russian venture

04/11/2005
Dual completion technology allowed a joint venture in Russia to accelerate production, add reserves, reduce costs, and still comply with Russian regulations requiring zones to be produced separately.The dual completions in the two wells, worked over in December 2004, involved the installation of two tubing strings in a single production casing string so that separate artificial lift systems can produce zones individually (Fig. 1).These completions possibly were the first dual-completed onshore wells in Russia, although completing wells with dual tubing strings has been a common practice in the US since at least the 1950s. Well Demkinsky 4614 produces 25 cu m/day of 20° gravity oil on the...
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