A mathematical model for describing coalbed gas recovery in heterogeneous anisotropic dual medium of pinnate horizontal multilateral Wells was established.
建立了对非均质各向异性双重介质煤层气进行定向羽状水平井开采的数学模型。
The result of simulation showed that the gas production in low-permeability coal bed could increase greatly by drilling pinnate horizontal multilateral Wells.
计算结果表明，利用定向羽状水平井能够大幅度提高低渗透煤层气的开采效率。
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