异常高压应力敏感性气藏开发动态预测研究

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异常高压气藏具有变形介质特征,在衰竭式开采过程中,气藏物性不断变差,表现出应力敏感性特征,从而影响气藏的开发效果。在前人研究成果的基础上,建立了异常高压应力敏感性气藏开发动态预测模型,以此研究应力敏感性气井产能与开发动态变化规律。研究结果表明,应力敏感性气井产能与井底流压下降快,采收率相对较低,因此在异常高压气开采过程中,应充分考虑储层压力敏感对气井产能的影响,确定合理的生产压差,延长气井稳产期。提高开发效益。
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