Tests expand knowledge of horizontal gravel packing

An extensive test program to evaluate a concentric annular packing system (CAPS) also expanded knowledge of horizontal gravel packing.In particular, new methods are described for dealing with wellbore variations, fluid loss, bypass of problem zones such as shale streaks, friction pressure in the area open to flow above an Alpha wave, optimum Alpha-wave height, sand bridge erosion, sand concentration, velocity and sand height.Horizontal gravel packsSince the early 1990s, long horizontal well completions have become more viable for producing hydrocarbons, especially from reservoirs in deep water, and gravel packing with screens has become a standard method of ensuring sand control in horizo...

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