Gulf of Suez "GOS" in Egypt is a mature oil field where platforms are crowded with wells. Drilling new wells from empty slots or as a slot recovery is a challenging due to collision risk with neighbor wellbores. Deflecting Conductor Sleeve "DCS" is a known tool typically used to control the placement of the conductor away of the old conductor stump. The DCS window length ranges from 70 to 90 ft and usually requires platform modification (cutting of slot guides & members) to accommodate the big diameter of the DCS and conductor pipe protruding from the DCS window.

Modifying the DCS design by reducing the width of the DCS's deflecting surface gives the chance to decrease the window length greatly while keeping the same conductor angle at the seabed, acceptable range of dogleg severity and bending stresses. This approach has been used successfully in one of Gupco wells and resulted in mitigating serious collision risk and eliminating the need for platform modification or slot extension. This paper presents conventional techniques used in GOS to avoid collisions in the conductor phase in addition to a new approach of using Conductor Deflecting Sleeve "DCS" design modification and a case study on the first time usage of 37 ft 30″×15″ DCS window.

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