第39参第5期 2017年9月
石油钻采工艺
OILDRILLING&PRODUCTION TECHNOLOGY
文章编号：1000-7393(2017)05054705
DOI:10.13639/j.odpt.2017.05.003
Vol. 39 No. 5 Sep.2017
特高含水期油膜变形机理及微观物模实验验证
孟小海陈琳’刘浩瀚”李奋
1.中国石化胜利油田分公司勘探开发研究院；2.西南石油大学理学院；3.四川建筑职业技术学院信息工程平
引用格式：小海，陈琳，刘浩葡，季奋，特高含水期油联变形机理及微观物模实验验证（J」-石油钻采工艺，2017，395) 547-551.
摘要：
为了研究特高含水期微观则余油膜的变形情况，假设油膜是被逐层驱替的条件下，采用微元法对油膜变形进行了研
究，确定了影响油膜变形的主要图素，分析了剧余油膜由静止到临界破裂的变化过程，在理论上推导出油膜变形启动水驱速度及油膜变形达到临累状态时油膜的表面积与体积的比值，并用微观物理模拟实验验证了假设的合理性。研究表明，油膜是被透层驱替的，随着水驱进行上层油膜逐渐脱离主体使油膜逐渐变薄；可以通过改变水的黏度和油膜的界面张力来达到油膜变形乃至破裂的目的进而增加采收率。
关键词：特高含水期；剩余油；亲水毛细管；剩余油膜；变形机理
中图分类号：TE312
文献标识码：A
Oilfilmdeformationmechanism inthe stage of ultra-high water cut and itsmicroscopic
physical experiment verification MENG Xiaohai', CHEN Lin', LIU Haohan', LI Fen
1. Explonation and Development Research Iastitarte, SINOPEC Shengli Oijield Company, Dongving 257017, Shandong, China,
2. School of Sciences, Southwest Petrolem University, Chengdir 610500, Sichan, China:
3. Information Engineering Deparmenr, Sichuan College of Architectwral Technology, Deyng 618000, Sichaan, China
Citation: MENG Xiaohai, CHEN Lin, LIU Haohan, LI Fen. Oil film deformation mechanism in the stage of ultra-high water cut and its microscopic physical experiment verification [ J ] - Oil Drilling & Production Technology, 2017, 39(5): 547-551.
Abstract: To research the deformation situations of remaining oil film in the stage of ultra-high water cut, the deformation of oil film was investigated by means of the infinitesimal method based on the assumption that the oil film is displaced layer by layer. Accord-ingly, the main factors affecting the deformation of oil film were determined. Then, the change process of remaining oil film from the quiescent state to the critical fracturing was analyzed. Finally, the startup waterflood velocity of oil film deformation and the surface area/ volume ratio of oil film while its deformation reaches the critical state were theoretically derived, and the rationality of the assumption was verified by means of microscopic physical simulation experiment. It is indicated that the oil film is displaced layer by layer. As thc waterflood goes, the upper oil film is separated gradually from the main body, so the oil film gets thinner gradually. It is demonstrated that the oil film can be deformed and even fractured by altering the viscosity of water and the interfacial tension of oil film, so as to improve the recovery factor.
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基金项目：国家科技重大专项重点项目“胜利油田特高含水期提高采收率技术"（二期）（端号：2016ZX05011)；中国石化股份胜利油
田分公司项目“特高含求期观制余油动用机制研究"（端号：YKY1501)；四川省教育厅一般项目（编号：15ZB0447）
第一作者：孟小海（1974-),1996年毕业于中国石沟大学（华东)采沟工程专业，长期从事油气藏渗流机理、油气层保护实验研究工作和
E-mail:; 13001563260@163.com
通讯作者：陈联（1989-),博士，从事石沟工程模数理论与方法研究。通试地址：(610500)四川省成都市新都区西南石沟大学明理楼
A513。 E-mail; chenlin8976@163.com
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