钻采工艺 ›› 2020, Vol. 43 ›› Issue (4): 43-46.DOI: 10.3969/J. ISSN.1006-768X.2020.04.12

• 开采工艺 • 上一篇    下一篇

青西油田多元复合吞吐研究与应用 ———以柳 5X井为例

高军,闫治东魏本兴陈艳琦,茹琦,任伟杰   

  1.  玉门油田分公司青西采油厂 
  • 出版日期:2020-07-25 发布日期:2020-07-25
  • 作者简介:高军( 1982 - ) , 工程师, 2007 年 6 月毕业于长江大学石油工程学院, 现在玉门油田分公司青西采油厂主要研究高压低渗透率裂缝性油藏长期稳产开发及深抽配套技术和深井清防蜡技术。地址: ( 735000 )甘肃省酒泉市肃州区紫荆园7栋3单元301 ,电话: 18693715011 , E - mail:276784256@ qq. com
  • 基金资助:
     

Research and Application of Multiple Composite Steam Stimulation in Qingxi Oilfield-Taking Well Liu 5X as an Example

GAO Jun,YAN Zhidong, WEI Benxing, CHEN Yanqi, RU Qi, REN Weijie   

  1.  Qingxi Oil Production Plant of Yumen Oilfield Branch, Jiuquan, Gansu 735000, China
  • Online:2020-07-25 Published:2020-07-25
  • Supported by:
     

摘要:  文章针对青西油田埋藏较深,储层发育较薄,地下原油黏度高,且对热敏感,适合热采的特点,提出了 结合水平井、降黏剂、氮气和蒸汽吞吐的多元复合蒸汽吞吐方法,进行了物理及数值模拟。物理模拟结果表明,氮 气的高膨胀性可以补偿地层能量,储层中的氮超覆效应具有绝热作用,并经数值模拟证实。生产测试表明,复合蒸 汽吞吐的组合效应可显著增加蒸汽波及体积、驱油效率和原油流动能力。借助这一技术,柳 5X井已形成万吨级年 产能,累计采出程度达到 63%,标志着深层薄发育储层稠油的高速、高效开发。

 

关键词:  , 稠油热采;蒸汽吞吐;氮气辅助;光刻物理模型

Abstract:

Aiming at the characteristics of deep burial in Qingxi oilfield, thin reservoir development, high viscosity of underground crude oil, heat sensitivity and suitability for thermal recovery, a multiple composite steam stimulation combined with horizontal well, viscosity reducer, nitrogen and steam stimulation is proposed. Methods, physical and numerical simulations were carried out. Physical simulation results show that the high expansion of nitrogen can compensate the formation energy, and the nitrogen overburden effect in the reservoir has adiabatic effect, which is confirmed by numerical simulation. Production tests have shown that the combined effect of composite steam stimulation can significantly increase the steam sweep volume, oil displacement efficiency and crude oil flow capacity. With this technology, Well Liu 5X has formed an annual production capacity of 10, 000 tons, with a cumulative recovery of 63% , marking the high-speed and efficient development of heavy oil in deep and thin reservoirs.

Key words:  , thermal recovery of heavy oil, steam stimulation, nitrogen assist, physical model of lithography 

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