摘要
长庆油田华庆超低渗透油藏主要采用水平井注水开发技术来提高开发效果,如何进行压裂裂缝优化设计是提高开发效果的关键。文中在对油藏特征分析的基础上,结合注采井网对水平井压裂裂缝长度、改造段数、布缝方式及施工参数进行了优化研究,提出了适合华庆超低渗油藏水平井的改造参数。24口水平井矿场实践表明,该参数组合具有较好的适应性,水平井产量达10.3 t/d,为直井的5倍,对类似油藏水平井压裂参数优化具有借鉴意义。
Huaqing ultra-low permeability reservoirs of Changqing Oilfield mainly use the water injection development technology of horizontal wells to improve development effect. How to optimize fracturing design is the key to improve the development effect. Based on the analysis of reservoir characteristics and combined with injection-production pattern, this paper studied the fracture length, transformed segments, fracture spacing manner and construction parameters. The transformation parameters suitable for Huaqing ultra-low permeability horizontal wells of Changqing Oi]field were proposed. Field practices of 24 horizontal wells show that this parameter combination has a good adaptability. The production of horizontal wells is up to 10.3 t/d, which is five times of vertical well. It has reference significance for the parameter optimization of horizontal wells in similar reservoir.
出处
《断块油气田》
CAS
2014年第5期668-670,共3页
Fault-Block Oil & Gas Field
基金
国家科技重大专项"大型油气田及煤层气开发"课题"超低渗透油藏有效开采技术"(2011ZX05013-004)
关键词
超低渗透油藏
水平井
压裂裂缝
优化设计
ultra-low permeability reservoir
horizontal well
fracturing fracture
optimization design
