发明名称 Recovery of methane from solid carbonaceous subterranean of formations
摘要 A method of recovering methane from a solid carbonaceous subterranean formation includes injecting a gas that desorbs methane through an injection well into a subterranean formation and recovering methane from a first and a second production wells, or from a first and a second layer. Areal and/or vertical sweep efficiency of the injected desorbing gas can be increased by selectively restricting the flow of recovered fluids from the first or the second production well with the highest monitored ratio of injected desorbing gas. The restriction of flow forces the desorbing gas into higher permeability areas of the subterranean formation.
申请公布号 US5085274(A) 申请公布日期 1992.02.04
申请号 US19910653827 申请日期 1991.02.11
申请人 AMOCO CORPORATION 发明人 PURI, RAJEN;YEE, DAN
分类号 E21B43/00;E21B43/16;E21B43/30;E21B43/40 主分类号 E21B43/00
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