Oil field production decline
Decline curve analysis (DCA) is a graphical procedure used for analyzing declining production rates and forecasting future performance of oil and gas wells. Oil and gas production rates decline as a function of time; loss of reservoir pressure, or changing relative volumes of the produced fluids, are usually the cause. The EIA forecasts that the Permian will add 296,000 barrels per day (bpd) of new shale oil production in August, while the existing wells in the field will decline by 223,000 bpd. If we add up these top five shale oil fields monthly decline rate for August will be 503,000 bpd.