HU Shuyong1, LI Yongkai1, MA Chao1,2, YIN Zhaoyun3, CHEN Li4 " /> 低渗、特低渗油藏极限井距计算新方法
新疆石油地质

›› 2015, Vol. 36 ›› Issue (4): 1-1.doi: 10.7657/XJPG20150418

• 论文 •    

低渗、特低渗油藏极限井距计算新方法

胡书勇1，李勇凯1，马 超1,2，尹昭云3，陈 力4   

  1. (1.西南石油大学 油气藏地质及开发工程国家重点实验室,成都 610500;2.中国石油 吉林油田分公司 新民采油厂,吉林 松源 138000;3.中海石油 深圳分公司,广东 深圳 518000;4.中国石油 渤海钻探工程公司,天津 300457)
  • 出版日期:2019-01-01 发布日期:1905-07-14

Identification of Abandoned Channels in Meander River and Impact on Horizontal Well Landing Design in Low Oil Column Reservoir: A Case Study of Lm943Sand of Caofeidian Oilfield in Bohai Bay Area

HU Shuyong1, LI Yongkai1, MA Chao1,2, YIN Zhaoyun3, CHEN Li4   

  1. (1.State Key Laboratory of Petroleum Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, Sichuan610500,China;2.Xinmin Oil Production Plant, Jilin Oilfield Company, PetroChina, Songyuan, Jilin138000, China;3.CNOOC Shenzhen Branch, PetroChina, Shenzhen, Guangdong518000, China;4.Bohai Drilling Engineering Co., Ltd, PetroChina, Tianjin300457, China)
  • Online:2019-01-01 Published:1905-07-14

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摘要： 克服低渗透油层启动压力梯度所需的最小驱替压力梯度所对应的注采井距，是注水井和生产井之间能够建立有效驱动压力系统的极限注采井距。采用一源一汇不等产量注采模型推导了注采井间主流线上驱替压力梯度的新公式。新民油田扶杨油藏属典型的低孔低渗油藏，结合该油藏实际开发特征计算出了注水井和生产井间能够建立有效驱动压力系统的极限井距，与常见的几种极限井距计算方法进行对比表明，该方法能较好地应用于油田实际。

Abstract: The producer?injector spacing corresponding to the minimum displacement pressure gradient overcoming the start?up pressure gradient in low permeability reservoir is the limit well spacing for establishing effective displacement pressure system between producer and injector. According to producer?injector model of aniso?production one?source and one?convergence point, a new formula for displacement pressure gradient in main stream line between producer?injector is deduced and applied to Fuyang reservoir in Xinmin oilfield which belongs to a typical low porosity and low permeability reservoir. This paper takes account of the real status of the reservoir development and determines the limit well spacing for it by this new method. Comparing common calculation methods available, the result shows it can be well applied in practice

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