水平井底水油藏变密度射孔技术优化研究  

Study on Variable Density Perforation Tech for Bottom-Water Reservoir of Horizontal Well

作　　者：李洪山[1] 王树强[1] 

机构地区：[1]大港油田集团钻采工艺研究院,天津300280

出　　处：《油气井测试》2008年第3期42-44,共3页Well Testing

摘　　要：在水平井的开采实践中,底水油藏底水锥进的出现会使产油量显著下降,控制或延缓底水锥进十分重要。从渗流力学出发,针对水平井水平段的摩阻越到底部越大的实际,采用优化射孔技术,在射孔器材上采用变孔密射孔方案,人为控制水平段生产压差,使水平段从远井地带到近井地带,固定生产压差生产。现场应用表明,该方法对减缓注水上升速度有显著的效果,对油田套管完井水平井的开发有一定的借鉴意义。During exploration experience for horizontal well,advance of bottom-water of bottom-water reservoir makes the oil productivity decrease seriously and it is important to control and slow down the advance.From percolation mechanics,and according to the facture of being much bigger of friction when being nearer bottom at horizontal section,optimized perforation tech,variable density for material,manmade control of production pressure for horizontal section,making perforated section to be near well side from far away and fix production pressure difference have been used.Field application proves that this method has a remarkable effect to lessen speed of water injection and provides a reference for developing for cased completion horizontal well.

关 键 词：水平井 底水油藏 变密度射孔 生产压差 

分 类 号：TE257.1[石油与天然气工程—油气井工程] TE341