文档介绍：1
石油勘探与开发
2013 年 2 月 PETROLEUM EXPLORATION AND DEVELOPMENT 79
文章编号:1000-0747(2013)01-0079-11
苏里格大型致密砂岩气田开发井型井网技术
何东博,贾爱林,冀光,位云生,唐海发
(中国石油勘探开发研究院)
基金项目:国家科技重大专项“大型油气田及煤层气开发”(2011ZX05015)
摘要:苏里格气田是中国致密砂岩气田的典型代表,井型井网技术是其提高单井控制储量和采收率、实现气田规模
有效开发的关键技术。针对苏里格气田大面积、低丰度、强非均质性的特征,形成了大型复合砂体分级构型描述与
优化布井技术、井型井网优化技术、水平井优化设计技术和不同类型井产能评价技术,为苏里格气田产能建设ⅠⅠ+
类井比例达到 75%~80%、预期采收率提高到 35%以上以及水平井的规模化应用发挥了重要的技术支撑作用。为进
一步提高苏里格气田单井产量和采收率,应继续开展低效井侧钻、多分支水平井、多井底定向井等不同井型,以及
水平井井网、多井型组合井网的探索和开发试验。图 7 表 3 参 20
石油勘探与开发关键词:苏里格气田;致密砂岩气田;井型;井网;分级构型;水平井;单井控制储量;采收率
中图分类号:TE32 文献标识码:A
Well type and pattern optimization technology for large scale tight sand gas,
Sulige gas field
He Dongbo, Jia Ailin, Ji Guang, Wei Yunsheng, Tang Haifa
(PetroChina Research Institute of Petroleum Exploration & Development, Beijing 100083, China)
Abstract: Sulige gas field is a typical tight sand gas field in China. Well type and pattern optimization is the key technology to improve
single well estimated reserves and recovery factor and to achieve effective field development. In view of the large area, low abundance
and high heterogeneity of Sulige gas field, a series of techniques have been developed including hierarchical description for the reservoir
architecture of posite sand bodies and well spacing optimization, well pattern optimization, design and optimization for
horizontal trajectory and deliverability evaluation for different types of gas wells. These technologies provide most important technical
supports for the increases of class I and II wells proportion to 75%–80% with recovery factor enhanced by more than 35% and for the
industrial application of horizontal drilling. To further improve individual well production and recovery factor, attempts and pilot tests in
various well types including side tracking of deficient wells, multilateral horizontal wells, and directional wells, and horizontal well
pattern bined well pattern of v