尹洪军;杨春城;徐子怡;丛林;薛江堂;王克亮;支继强;

• 1:东北石油大学提高采收率教育部重点实验室

• 2:东北石油大学非常规油气成藏与开发省部共建国家重点实验室培育基地

• 3:中国石油大学(北京)石油工程学院

• 4:大庆榆树林油田开发有限责任公司

摘要(Abstract)：

基于源函数理论及叠加原理,建立并求解具有有限导流能力垂直裂缝的分段压裂水平井渗流数学模型;对于致密储层小间距长裂缝的压裂模式,绘制并分析分段压裂水平井压力动态曲线.结果表明:分段压裂水平井的流动形态可分为井筒储集、裂缝线性流和径向流联合作用流、地层线性流、衰竭流、复合线性流和拟径向流等6个主要阶段;裂缝导流能力主要影响裂缝线性和径向流联合作用流及地层线性流出现时间;按裂缝非均匀导流能力布缝时,地层线性流持续的时间较长;裂缝半长越大,裂缝间距越小,衰竭流开始的时间越早,持续的时间越长;按裂缝非均匀半长和非均匀间距布缝时,衰竭流持续的时间较长.该研究成果可为分段压裂水平井的动态分析及试井解释提供依据.

关键词(KeyWords)：分段压裂水平井;源函数;叠加原理;导流能力;垂直裂缝;渗流力学;压力动态曲线

Abstract:

Keywords:

基金项目(Foundation):黑龙江省教育厅科学技术研究项目(12531070)

作者(Author):尹洪军;杨春城;徐子怡;丛林;薛江堂;王克亮;支继强;

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