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塔河油田稠油复合井筒降黏技术研究与应用

石油实验地质

2014年 36卷第s1期

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Title

Research and application of composite wellbore viscosity-reduction technology about heavy oil in Tahe Oilfield

作者

丁保东李淑杰杨祖国何龙邢钰

Authors

Ding Baodong Li Shujie Yang Zuguo He Long Xing Yu

单位

中国石化西北油田分公司工程技术研究院, 乌鲁木齐 830011

Organization

Research Institute of Engineering Technology, SINOPEC Northwest Company, Urumqi, Xinjiang 830011, China

摘要

塔河油田单项降黏工艺效果趋于极限,采用复合思路,开展了复合降黏技术研究.室内实验表明,水溶—油溶复合降黏剂能够乳化更大黏度(100×104 mPa·s以上)的稠油;加热+油溶性降黏剂复合使用降黏效果进一步提高.矿场试验显示,化学复合降黏平均节约稀油率69.8%,电加热+油溶工艺复合降黏平均节约稀油率51.27%,单项降黏技术极限得到突破.

Abstract

Since the effects of individual viscosity reduction were limited in the Tahe Oilfield, composite viscosity reduction technologies were discussed. Laboratory experiments showed that water-oil soluble viscosity-reducing agents could emulsify heavy oils with viscosity higher than 100×104 mPa·s. The compound of heated and oil-soluble viscosity-reducing agents had better effects. Field works indicated that the chemical compound viscosity reduction could save light oils by 69.8%, and the heated and oil-soluble viscosity reduction could save light oils by 51.27%.

关键词：

稠油; 复合降黏; 塔河油田;

Keywords:

heavy oil; compound viscosity reduction; Tahe Oilfield;

基金项目

DOI

https://doi.org/10.11781/sysydz2014S1095