液态CO_(2)注入剖面测井工艺探索

Improved Process of Liquid CO_(2) Injection Profile Logging

液态CO_(2)的特殊性导致其注入剖面测井施工困难。针对液态CO_(2)注入剖面测井工艺复杂、施工难度大和危险系数高等难点,提出了技术对策。通过创新高压密闭工艺、隔离液预置工艺、通井工艺和辅助工艺,解决了相关施工工艺问题。改进的液态CO_(2)注入剖面测井工艺流程合理、可靠,施工安全、高效和便捷,应用效果好。

The special physical properties of liquid CO_(2) fluid make it difficult to perform injection profile logging.Aiming at the difficulties of liquid CO_(2) injection profile logging,such as complex processes,difficult operations and high risk factors,corresponding technical countermeasures are proposed.The problems of logging operation are solved through innovative high-pressure well control,isolation fluid preset,well-drifting and auxiliary technology.The test results show that the improved liquid CO_(2) injection profile logging process is reasonable and reliable,logging operation is safe,efficient and convenient,and the application effect is good.