压裂水平井裂缝布局研究
Journal of Oil and Gas Technology（2013）
Abstract
针对低渗透油藏压裂水平井裂缝参数难确定的问题,为了研究裂缝对于水平井生产效果的影响,在某低渗透油藏概念模型的基础上,运用数值模拟方法对裂缝间距、裂缝长度布局和裂缝与井筒夹角等参数进行研究.结果表明,针对某一特定油藏,存在裂缝间距最优情况,裂缝U型布局是最优的,特别对于低渗透油藏,两端裂缝贡献尤为明显,裂缝与井筒正交时效果最好,夹角大于50°时,对生产效果影响较小.实际油藏应根据不同的油藏参数来考虑优化各裂缝参数.
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Key words
low permeability reservoir,horizontal well,fracture,numerical simulation,included angle
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