[1]郝宏达,侯吉瑞,郭文敏,等.强水窜油藏凝胶/CO2复合吞吐三维物理模拟[J].常州大学学报(自然科学版),2023,35(05):67-75.[doi:10.3969/j.issn.2095-0411.2023.05.009]
　HAO Hongda,HOU Jirui,GUO Wenmin,et al.3D physical simulation of gel combined CO2 huff-n-puff in a channeling oil reservoir[J].Journal of Changzhou University(Natural Science Edition),2023,35(05):67-75.[doi:10.3969/j.issn.2095-0411.2023.05.009]
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强水窜油藏凝胶/CO2复合吞吐三维物理模拟()
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常州大学学报(自然科学版)[ISSN:2095-0411/CN:32-1822/N]

卷:
第35卷
期数:
2023年05期
页码:
67-75
栏目:
石油与天然气工程
出版日期:
2023-09-28

文章信息/Info

Title:
3D physical simulation of gel combined CO2 huff-n-puff in a channeling oil reservoir
文章编号:
2095-0411(2023)05-0067-09
作者:
郝宏达1; 侯吉瑞2; 郭文敏1; 刘怀珠3
(1.常州大学 石油与天然气工程学院, 江苏 常州 213164; 2.中国石油大学(北京)非常规油气科学技术研究院, 北京 102249; 3.中国石油冀东油田公司 钻采工艺研究院, 河北 唐山 063000)
Author(s):
HAO Hongda1;  HOU Jirui2;  GUO Wenmin1;  LIU Huaizhu3
(1.School of Petroleum and Natural Gas Engineering, Changzhou University, Changzhou 213164, China; 2.Unconventional Petroleum Research Institute, China University of Petroleum(Beijing), Beijing 102249,China; 3.Drilling & Production Technology Research Institute, PetroChina Jidong Oilfield Company, Tangshan 063000,China)
关键词:
CO2吞吐;  淀粉凝胶;  稠油;  采收率;  三维物理模拟
Keywords:
CO2 huff-n-puff;  starch gel;  heavy oil;  oil recovery;  3D physical simulation
分类号:
TE 39
DOI:
10.3969/j.issn.2095-0411.2023.05.009
文献标志码:
A
摘要:
针对华北油藏,选取淀粉凝胶在室内开展配方优选及性能评价,随后采用三维水窜模型开展凝胶/CO2复合吞吐室内物理模拟实验,并提出了通过凝胶/CO2复合吞吐提高采收率的方法。结果表明,优选的凝胶体系具有良好的注入性能,小剂量凝胶体系即可在水窜通道中形成I级刚性凝胶,其阻力系数仅为4.36,残余阻力系数高达604.70。三维物理模拟实验结果表明,凝胶/CO2复合吞吐可提高采收率11.36%,降低含水量至4%～18%。在淀粉凝胶封堵强窜通道后,CO2可有效置换近井地带剩余油,同时边水可动用基质内部剩余油,在CO2和边水的双重作用下,大幅度提高强水窜油藏采收率。
Abstract:
For Huabei Oilfield, starch gel is selected to carry out formulate optimization and performance evaluation in laboratory, and then 3D water channeling model was used to carry out indoor physical model experiment of gel/CO2 composite huff and puff, and the method of improving oil recovery through gel/CO2 composite huff and puff is proposed. The results show that the optimized starch gel has an excellent injectivity, and a rigid gel classified as I can formed within the strong channels using a small dose of gel. The resistance factor is only 4.36, and the residual resistance factor can reach 604.70. 3D experimental results show that the oil recovery of gel combined CO2 huff-n-puff can be enhanced by 11.36%, and the water cut can be dropped to 4%—18%. After the plugging of strong channels by starch gel, the oil remained at near-wellbore area can be extracted by CO2, and the oil remained at deep formation can be displaced by edge water. With the combined of CO2 extraction and edge-water driving, the oil recovery can be significantly enhanced in the strong channeling oil reservoir.

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备注/Memo

备注/Memo:
收稿日期: 2023-03-23。
基金项目: 国家自然科学基金资助项目(5274046)。
作者简介: 郝宏达(1990—), 男, 黑龙江尚志人, 博士, 讲师。E-mail: haohongda90@126.com
更新日期/Last Update: 1900-01-01