Rotary closed-loop drilling improves wellbore fluid flow

New, automated closed-loop steering devices are significantly reducing deviations from ideal wellpath in horizontal wells.These devices immediately counteract deviations from the planned path through a downhole, closed-loop control of the directional drilling process. The reductions are from meters to fractions of meters. As a result, wellbore fluid flow efficiency is significantly enhanced.Producing thin remaining columns of oil sandwiched between rising water and a highly mobile gas cap can be challenging.It is crucial to minimize drawdown along the horizontal section to prevent coning and water cresting as most reservoirs are heterogeneous and kv:kh ratios are not constant.The producti...

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