Sand production is very common in the gas wells of the Adriatic Sea. Accurate field surveys have been conducted before and after sand production has occurred in wells where no sand control methods had been initially introduced. Unlike the numerous other papers dealing with sand production, this one describes the sand production observed in low permeability gas-bearing formations which include a significant amount of clays. The main parameters inducing sand production are identified and an empirical correlation is established which enables its prediction. Moreover, the influence of parameters such as depth, drawdown, depletion, gas rate, water gas ratio etc. on the occurrence of sand production is determined. The paper also reports the results of a sand flow test performed in a gas field situated in the surveyed area. Finally, these results are discussed in terms of geological history of the Northern Adriatic Basin.

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