Research on Plugging and Fluid Diversion of Emulsion Diesel System for Unconsolidated Sandstone Reservoir

doi:10.3969/j.issn.1006-396X.2017.01.008

›› 2017, Vol. 30 ›› Issue (1): 36-41.DOI: 10.3969/j.issn.1006-396X.2017.01.008

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Research on Plugging and Fluid Diversion of Emulsion Diesel System for Unconsolidated Sandstone Reservoir

Received:2016-11-11 Revised:2016-11-29 Published:2017-02-24 Online:2017-02-28

疏松砂岩油藏乳化柴油体系封堵分流实验研究

高建崇¹,张岭¹,冯浦涌²,王春林²,荣新明²

1.中海石油(中国)有限公司天津分公司,天津300452;2.中海油田服务股份有限公司,天津300459

通讯作者: 荣新明(1984-),男,硕士,工程师,从事海上油水井增产增注技术研究;E-mail:rongxm2006@163.com。
作者简介:高建崇(1980-),男,高级工程师,从事海上油田注水、增产措施技术以及提高采收率等采油工艺研究;E-mail:gaojch@cnooc.com.cn。

Abstract

Abstract:

Research on the technique of emulsified diesel temporary plugging and diversion capacity was carried out in this paper. The new technology attempted to improve acidizing effectin Bohai oilfields, which was unconsolidated sandstone reservoirs with thick oil layers, serious anisotropy and high water-cut after acidification. The physical model lab test indicated that the emulsion diesel system with oil-water ratio 3∶7 had a good capacity of selectively plugging in high permeability layers and little plugging effect on the low permeability layers. This can lead following fluids steering to the lower permeability layer. Integrated with conventional acidizing treatments, the emulsion diesel system can also conduce to uniformly acidizing treatment, water control and stimulation.

Key words: Emulsion diesel, Selectively plugging, Fluid diversion, Unconsolidated sandstone

摘要： 针对渤海油田疏松砂岩油藏油层厚度大、非均质性严重、酸化后含水率上升的问题,开展了乳化柴油封堵分流能力实验研究。物理模拟实验表明,以油水体积比3∶7制备的乳化柴油体系具有选择性封堵高渗透层,对低渗油层的封堵能力较弱。应用该体系后可有效将后续液体分流到低渗层,且对高渗水层的渗透率有较大幅度降
低,而对低渗油相渗透率影响很小。与常规酸化解堵措施相结合,可起到均匀酸化与控水增产的目的。

关键词: 乳化柴油, 选择性封堵性能, 分流性能, 疏松砂岩油藏

GaoJianchong,ZhangLing,FengPuyong,WangChunlin. Research on Plugging and Fluid Diversion of Emulsion Diesel System for Unconsolidated Sandstone Reservoir[J]. , 2017, 30(1): 36-41.

高建崇,张岭,冯浦涌,王春林,荣新明. 疏松砂岩油藏乳化柴油体系封堵分流实验研究[J]. 石油化工高等学校学报, 2017, 30(1): 36-41.

Research on Plugging and Fluid Diversion of Emulsion Diesel System for Unconsolidated Sandstone Reservoir

疏松砂岩油藏乳化柴油体系封堵分流实验研究

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