Summary A field test was conducted to investigate the effectiveness of methanol as a solvent for removing condensate blockage. On the basis of laboratory results and a single-well numerical simulation, a field test was conducted on a gas well that suffered from gradual productivity decline caused by condensate banking in the Hatter's Pond field in Alabama. The well chosen for treatment was producing 250 MMscf/D of gas with 87 BOPD of condensate. After methanol treatment, both gas- and condensate-production rates increased by a factor of two over the first 4 months and by 50% thereafter.
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Al-Anazi et al. (2005) studied this question.
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