扩径延缝射孔技术在深层特超稠油油藏开发中的应用  

Compound perforation in deep extra heavy oil reservoir

作　　者：许家新[1] 

机构地区：[1]中国地质大学

出　　处：《特种油气藏》2003年第5期60-62,共3页Special Oil & Gas Reservoirs

摘　　要：冷家油田原油属特超稠油,储层埋藏深,物性差,部分油井热采注汽压力高,干度低,影响了吞吐效果。通过采取扩径延缝,增大射孔孔径,并利用解堵弹分段燃烧形成的脉冲高压对地层的造缝作用,提高油井完善程度,有效降低注汽压力,提高了吞吐效果,在冷家油田实施后见到明显增产效果。Lengjia oilfield produces extra heavy oil. The reservoirs were deeply buried and have poor pelrophysical properties. Some oil wells have high steam injection pressure, low steam quality and poor stimulation effect. Perforation aperture has been increased through compound perforation, steam injection pressure has been decreased, and the effect of stimulation has been improved through fracture - making due to high pulse pressure resulted from sectional combustion of release charge. Notable oil increment has been obtained after application of compound perforation in Lengjia oilfield.

关 键 词：扩径延缝射孔 脉冲加载增压 特超稠油 注汽压力 吞吐效果 应用:冷家油田 

分 类 号：TE257[石油与天然气工程—油气井工程] TE345