大港油田超高温深井试油技术研究与应用

Research and Application of Oil Testing Technology for Ultra High Temperature Deep Well in Dagang Oilfield

针对大港油田超高温深井复杂井况特点,研究出射孔、测试、酸压一体化工艺管柱,优选耐温239℃/48 h,耐压140 MPa,每米20孔穿深1.3 m射孔枪弹,创新出前置液降温酸压技术,优选出耐高温井下试油工具以及防硫化氢对策等,通过现场应用达到预期目的。

To complex well conditions characteristics at ultra high temperature deep wells in Dagang oilfield, the integrated process stem for perforating, testing, acid fracturing is developed, perforating bullet of withstand of 239℃ / 48h temperature, 140MPa pressure, and with 20 holes per meter to wear deep 1.3m is preferred, technology of the acid fracturing and preflush to cool is innovated and down hole testing tools for high temperature and anti-hydrogen sulfide countermeasures are preferred, the desired technological result is achieved by on-site applications.