GL-1井抗260 ℃白油基油包水钻井液的应用研究

Application Research on 260℃ High Temperature White Oil Based Water-in-oil Drilling Fluid in Well GL-1

摘要:

GL-1井完钻井深为6300.83 m，预计井底温度高达260 ℃。至完钻使用抗260 ℃高温白油基油包水钻井液施工6个月。应用结果表明：该钻井液具有抗温性（260 ℃ ）、抗污染能力强、有利于井壁稳定、润滑性好和对油气储层损害程度小等优点。该井的成功为大庆油田下一步高温深层顺利勘探开发提供了安全有效的技术保障。

Abstract:

Well GL-1 was completed at the depth of 6300.83m. With the expected bottom temperature up to 260℃, the drilling fluid with 260℃ high temperature tolerance was used in the 6 months construction. The application shows that this drilling fluid has advantages of good temperature tolerance (260℃), strong anti-pollution ability, good lubricity with light damages to oil and gas reservoirs, is conducive to hole wall stability. The successful construction of this well provides safe and effective technical guarantee for the further exploration and development with high temperature in deep layer of Daqing oilfield.