塔河油田稠油复合井筒降黏技术研究与应用

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

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.
- 稠油 /
- 复合降黏 /
- 塔河油田
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%.
- heavy oil /
- compound viscosity reduction /
- Tahe Oilfield

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