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Vol. 59 No. 4

April 2007

Natural Gas Technology/Monetization

Laboratory and Field-Trial Results of Condensate-Bank Removal in Retrograde-Gas Reservoirs

Gas-condensate reservoirs experience significant productivity losses when the reservoir pressure declines below the dew-point. This productivity loss is caused by liquid condensation near the wellbore and the subsequent decline in gas rate because of the reduced gas relative permeability. Gas-condensate wells often are fracture stimulated to reduce the drawdown and subsequent formation of a condensate bank in the vicinity of the well. The use of filtered diesel to remove the condensate bank from gas wells was investigated.

 

View a Synopsis of SPE 102558 published in JPT.

This article, written by Technology Editor Dennis Denney, contains highlights of paper SPE 102558, "Laboratory and Field-Trial Results of Condensate-Banking Removal in Retrograde-Gas Reservoirs: Case History," by F.O. Garzon, SPE, H.A. Al-Anazi, SPE, J.A. Leal, SPE, and M.G. Al-Faifi, Saudi Aramco, prepared for the 2006 SPE Annual Technical Conference and Exhibition, San Antonio, Texas, 24-27 September.

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