二项式物质平衡方程预测异常高压气藏储量

Journal of Southwest Petroleum University(Science & Technology Edition)(2010)

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Abstract
针对异常高压气藏开发过程中预测地质储量难的问题,利用异常高压气藏pD-GpD曲线与无因次IPR曲线形状的相似性,提出了预测异常高压气藏储量的二项式物质平衡方程新模型。以美国Louisiana North Ossun"NS2B"、Louisiana Offshore Cajun、Gulf Coast Anderson"L"和South Louisiana Miocene异常高压气藏为例,新模型计算出的地质储量相对误差分别为-2.88%,0.26%,1.57%和-2.81%。对比文献预测结果发现,新模型的预测精度优于其他方法,且能较准确地预测水侵量,从而论证了该方法的有效性、准确性和可靠性,为异常高压气藏动态分析提供了一种有效方法。
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Key words
gas reservoir,quadratic equation,water influx,geological reserves,material balance,abnormally high-pressure
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