西南石油大学学报(自然科学版) ›› 2013, Vol. 35 ›› Issue (2): 115-120.

• 石油与天然气工程 • 上一篇    下一篇

特低渗透油藏压裂水平井新型布井方式研究

曾保全1,程林松2,齐梅1,李春兰2   

  1. 1. 中国石油勘探开发研究院国际项目评价研究所,北京海淀1000832. 中国石油大学(北京)石油工程学院,北京昌平102249
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2013-04-01 发布日期:2013-04-01

Novel Well Pattern for Fractured Horizontal Well in Ultra-lowPermeability Reservoir

Zeng Baoquan1, Cheng Linsong2, Qi Mei1, Li Chunlan2   

  1. 1. Department of Overseas New Ventures Assessment,PetroChina Research Institute of Petroleum Exploration & Development,Haidian,Beijing 100083,China2. College of Petroleum Engineering,China University of Petroleum,Changping,Beijing 102249,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2013-04-01 Published:2013-04-01

摘要: 考虑长庆油田特低渗油藏地貌特征和储层各向异性,提出了一种压裂水平井新型布井方式。从钻井和油藏两
个角度论证新型布井的可行性。丛式井技术可确保压裂水平井新型布井的顺利实施。利用油藏数值模拟方法,分别
从单井产能、阶段采出程度、含水率、波及面积等方面评价了压裂水平井新型布井在交错、菱形和矩形井网中的开发效
果。研究表明,新型布井与常规布井在交错井网中具有相同的开发效果;菱形和矩形井网中,新型布井可以提高阶段
采出程度、单井产能和相对波及面积,降低相同采出程度对应的含水率。新型布井在菱形井网(矩形井网)30 a 的相对
波及面积和采出程度分别提高6.00%(10.00%)和0.96%(1.60%),含水率95% 的采出程度提高1.05%(1.50%)

关键词: 特低渗透油藏, 压裂水平井, 布井方式, 波及面积, 油藏数值模拟

Abstract: A novel well pattern was presented for fractured horizontal wells in ultra-low permeability reservoir,considering
geomorphological features and permeability anisotropy of Changqing Oilfield. The feasibility of novel well pattern was demonstrated
on drilling and development. The cluster well technology can guarantee the successful drilling and completionon of the
fractured horizontal wells. Development of novel well pattern in the interlacing well pattern,rectangular pattern and rhombic
inverted nine-spot pattern was evaluated by reservoir numerical simulation about average well production,oil recovery,water
cut and sweep area. The results show that novel well pattern and conventional well pattern has the same development effectency
in the interlacing well pattern;the novel well pattern in the other two patterns can effectively reduce the water cut in the sweep
area of 30 years and the degree of reserve recovery enhance 6.00% and 10.00%,recovery 0.96% and 1.6%. respectively,and
the final recovery 1.05% and 1.50%(when water cut =95%).

Key words: ultra-low permeability reservoir, fractured horizontal well, well pattern, sweep area, reservoir numerical simulation