Intermittent gas lift for liquid loaded horizontal wells in tight shale gas reservoirs
As the near-wellbore pressure of tight gas shale formations, drops sharply within the first two years of production, the gas entering the completion slows down, reducing its capacity to drag liquids to the surface. This causes the accumulation of liquids in the horizontal section (i.e. liquid loading). The stagnant liquids must be produced to allow the continuous flow of new hydrocarbons into the wellbore. Current artificial lift (AL) systems have proven to be inefficient and unsustainable for this purpose, due to the large gas volume fraction; the horizontal and tortuous nature of the wellbores; ...
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Zerpa, Luis E.; Pereyra, Eduardo
Embargo Expires: 06/04/2021