[1]李晓南,程诗胜,王康月,等.中低渗油藏C2断块阜一段中高含水期调驱技术研究[J].复杂油气藏,2014,(03):53.
　Li Xiaonan,Cheng Shisheng,Wang Kangyue,et al.Conformance control flooding for mid-low permeability reservoir in C2 block at mid-high water-cut stage[J].Complex Hydrocarbon Reservoirs,2014,(03):53.
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中低渗油藏C2断块阜一段中高含水期调驱技术研究
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《复杂油气藏》[ISSN:1674-4667/CN:31-2019/TQ]

卷:
期数:
2014年03期
页码:
53
栏目:
油气开发
出版日期:
2014-09-25

文章信息/Info

Title:
Conformance control flooding for mid-low permeability reservoir in C2 block at mid-high water-cut stage
作者:
李晓南; 程诗胜; 王康月; 李娟; 黄菊; 刘华; 刘爱武; 王景欣
中国石化江苏油田分公司地质科学研究院，江苏扬州225009
Author(s):
Li Xiaonan; Cheng Shisheng; Wang Kangyue; Li Juan;  Huang Ju; Liu Hua; Liu Aiwu; Wang Jingxin
Geological Scientific Research Institute of Jiangsu Oilfield Company，SINOPEC，Yangzhou 225009，China
关键词:
中低渗油藏　调驱　聚合物凝胶　提高采收率　江苏油田
Keywords:
mid-low permeability reservoir; conformance-control flooding; polymer gel; enhanced oil recovery; Jiangsu Oilfield
分类号:
TE341
文献标志码:
A
摘要:
C2断块进入开发后期，储层非均质性强，综合含水高，开发效果变差。针对C2断块的开发现状，开展了调驱技术研究。通过大量室内实验研究，优选出合适的调驱体系。实验结果显示：在134×10-3μm2天然岩心中，1200mg/L调驱剂的封堵率为83.35%，驱油效率为15.46%，表明其具有较强封堵能力和较高驱油效率。结合物模和数模的研究，优化调驱参数并制定油藏调驱方案。段塞结构为：前缘段塞1200mg/L凝胶，主体段塞1200mg/L聚合物，抗稀释段塞1500mg/L聚合物。经预测该调驱方案实施后可累计增油6355.8t，吨聚增油186.9t/t。
Abstract:
At the later stage of development，C2 block has strong reservoir heterogeneity，high water-cut，and poor development effect.According to the development situation of C2 block，the conformance control flooding was studied.Through a larger number of lab experiments，the suitable conformance control system was selected.The experimental results showed that under the condition of the conformance control system with a concentration of 1,200 mg/L and natural core with a permeability of 134×10-3 μm2，the plugging rate was 83.35% and the oil displacement efficiency was 15.46% OOIP.This indicated strong plugging ability and high oil displacement efficiency.Based on studies of the physical model and mathematical model，injection parameter and displacement scheme were optimized.The optimal displacement scheme was as follows：pre-slug of gel with a concentration of 1，200 mg/L，main slug of polymer solution with a concentration of 1,200 mg/L，and anti-dilution slug of polymer solution with a concentration of 1,500 mg/L.If the displacement plan is implemented，the project will reach an accumulative increased oil of 6,355.8 tons，with an incremental oil of 186.9 tons per ton of polymer.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期：2014-01-20；改回日期：2014-02-28。
作者简介：李晓南（1980—），女，工程师，硕士，现从事三次采油提高采收率技术研究工作，电话：13665292421，E-mail:lixnan.jsyt@sinopec.com。
攻关项目：中国石化江苏油田分公司(JS12019)。
更新日期/Last Update: 2014-09-25