石油与天然气地质 ›› 2001, Vol. 22 ›› Issue (4): 378-381.doi: 10.11743/ogg20010420

• 油气空间 • 上一篇    下一篇

稠油出砂冷采技术的适用条件

孙来喜1, 伏卫东2, 董文龙1, 赵宇2, 周辉2, 陈晓喜2   

  1. 1. 河南油田研究院, 河南南阳, 473132;
    2. 河南油田设计院, 河南南阳, 473132
  • 收稿日期:2001-08-02 出版日期:2001-12-25 发布日期:2012-01-16

CONDITIONS OF COLD PRODUCTION TECHNOLOGY FOR HEAVY OIL

Sun Laixi1, Fu Weidong2, Dong Wenlong1, Zhao Yu2, Zhou Hui2, Chen Xiaoxi2   

  1. 1. Research Institute of Henan Oilfield, Nanyang, Henan;
    2. Institute of Designing, Henan Oilfield, Nanyang, Henan
  • Received:2001-08-02 Online:2001-12-25 Published:2012-01-16

PDF (PC)

944

被引次数

29

摘要：

稠油油藏能否适宜出砂冷采,主要取决于油藏能否形成蚯蚓洞网和泡沫油,这与储层、原油及开采条件密切相关.国外研究成果和河南新庄油田的开采实践表明:泥质含量小于10%,少或无钙质胶结的疏松储层及粒径小于2 mm的半胶结砂岩储层可进行出砂冷采;压力在2.0～6.0 MPa,粘度为500～50 000 mPa·s,厚度大于5 m,溶解气含气在10 m3/t左右的油层也可考虑用此方法开采;另外,出砂冷采宜从油藏中心展开,尽量远离边水和气顶(>200 m).

关键词: 稠油, 出砂冷采, 蚯蚓洞, 泡沫油

Abstract:

Based on field information,the reservoirs,which are suitable to cold recovery,are those whose formation are loose,gravel content is low,dead oil viscosity is 500～50 000 mPa.s,solution gas concentration in crude oil is about 10 m3/t,reservoir pressure is higher than 2 MPa,formation depth is 200～1 000 m.The effects of edge water and gas cap distribution on cold recovery of heavy oil are great,which are important factors to deploy oil wells and determine perforation interval and discharge capacity.This techique has extensive adaptability in such reservoirs as loose sandstone with solution gas.It is very important for the deployment of this technique to make clear the effects of geologic factors on cold recovery and establish relevant technical tactics.

Key words: heavy oil, cold recovery, wormhole, foamy oil

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