Operator Saves Rig Time and Cuts Costs with Modular Whipstock Sidetracking System, GOM | Schlumberger
Tech Report
Location
United States, North America
Details

Gulf of Mexico

Environment
Offshore

Distance from original borehole, ft [m]
35 [10.7]

Well inclination, °
86.1

Background
An operator wanted to sidetrack a horizontal well at 86.1° inclination, but the high angle made it difcult to deliver the whipstock assembly to setting depth. A system that allowed for pushing on the whipstock tip was needed; a conventional one-trip system could not be used because a load would have been applied to the shear bolt, risking premature separation. A modular whipstock sidetracking system combined with a hydraulic coupling locator eliminated a dedicated casing collar locator trip. The operator completed the window 80° left of high side, enabling the directional assembly to pass through and reach TD.
Products Used

Operator Saves Rig Time and Cuts Costs with Modular Whipstock Sidetracking System, GOM

TrackMaster Select system set and achieved casing exit at 80° left of high side in near-horizontal well.

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Using the TrackMaster Select system, the operator successfully sidetracked the horizontal well at 86.1 degree of inclination, an angle that makes delivering conventional whipstock assemblies to setting depth difficult.
Products Used

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