安棚地区特低孔渗油气藏压裂技术优化及应用  

Fracturing Technique and its Application of Ultra-low Porosity and Permeability Reservoirs in Anpeng Area

作　　者：陈祥[1] 邱荣华[1] 陈代林陶良军 孙凤华[1] 郝明慧[1] 

机构地区：[1]河南石油勘探局,河南南阳473132

出　　处：《江汉石油学院学报》2001年第4期38-39,共2页Journal of Jianghan Petroleum Institute

摘　　要：针对安棚地区特低孔特低渗且天然裂缝分布不均一的油藏地质特点 ,进行了岩石物理力学性质及地应力特征研究 ,优化了水力裂缝和压裂液体系 ,优选了支撑剂。优化后的支撑半缝长为 1 1 0～ 1 5 0 m,优选出羟丙基胍胶 +有机硼交联剂 +胶囊破胶剂等低伤害压裂液体系及高密高强或低密中强的陶粒支撑剂。现场实施后 ,泌 2 5 2井日产油提高 2 1倍多、泌 2 5 3井日产气提高近 92倍 ,取得了较好的增产效果。In consideration of the geologic reservoir characteristics of ultra-low porosity, ultra-low permeability and uneven distribution of natural fractures, the mechanical property of petrophysics and the feature of stress are studied, hydraulic fracturing and fracturing fluid systems are optimized and optimal selection of proppants is made. The length of propped half fracture is 110 [similar to] 150 m after optimization, a low damage fracturing fluid system and a high-density and high-strength or low-density and moderate-strength ceramsite proppants are optimized, by which the daily oil production rate is raised as much as 21 times in Well Mi 252 and daily gas production rate is raised nearly as much as 92 times in Well Mi 253, thus a better result of stimulation is achieved.

关 键 词：低渗透油气藏 压裂设计 优化设计 压裂液 压裂支撑剂 裂缝 岩石 河南油田 

分 类 号：TE357.12[石油与天然气工程—油气田开发工程]