西安石油大学学报（自然科学版）2012，Vol.27Issue(2)：58-62,5.
人工裂缝与水平井筒的夹角对开发效果的影响
柳明 1张士诚 1雷鑫1
作者信息
- 1. 中国石油大学石油工程教育部重点实验室,北京102249
- 折叠
摘要
Abstract
A new method for simulating artificial fractures using Pebi grid refinement is proposed when there is any angle between artificial fracture and horizontal well-bore. The effect of the angle ( varying from 0° to 90°, increment is 15° ) on the development result of horizontal well is studied under the conditions of single fracture and multiple fractures separately, and the way to decrease the interference among the artificial fractures is suggested under the condition of multiple fractures. The results indicated that,compared with Cartesian grid refinement method,Pebi grid refinement can more'accurately simulate the fractures with the angle of 0° ~ 90°; the angle which easily leads to early water breakthrough is influenced by many factors,and early water breakthrough could severely decrease the total oil production; the bigger the angle,the more obvious the effect of interference among fractures on development result; between 15° and 90°,the bigger the angle,the greater the interference among the factures.the lower the initial oil recovery rate and the greater the final oil production except easily water breakthrough angle; under the condition of homogeneous formation,the fracture distribution of short fractures in the two ends and long fractures in the middle of horizontal well could delay the time of water breakthrough; the uniform distribution of fractures along horizontal well between two water injection wells could balance the effect among fractures and improve the development result of horizontal well.关键词
水平井/人工裂缝方位/开发效果/数值模拟/网格加密/水驱前缘/缝间干扰Key words
horizontal well/ artificial fracture azimuth/ development result/ numerical simulation/ grid refinement/ water driving front/ interference among fractures分类
能源科技引用本文复制引用
柳明,张士诚,雷鑫..人工裂缝与水平井筒的夹角对开发效果的影响[J].西安石油大学学报（自然科学版）,2012,27(2):58-62,5.
