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Case File 403 Chemical
Treatment – Onshore U.S.
F.O.A.M. technology restricts water loading, increases gas
production and reduces corrosion
A 13,000-ft well with 11,000 psi bottomhole pressure and 275º F
bottomhole temperature produces 3.0 MMcfd of gas and 250 BPD of
water and no condensate. Originally, the well was being treated with
a batch corrosion inhibitor. The production, however, became
inconsistent and the well stopped producing gas. The measured iron
counts increased to 275 ppm due to increasing corrosion rate. A
switch was made to a F.O.A.M. product that resulted in a return to
production and iron counts of 1 to 2 ppm. The chemical was dosed at
a rate of 1,650 ppm through capillary tubing to the bottom of the
well. If the chemical dosing is stopped, the well will load with
water and stop producing in less than 12 days.
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