光纤测井在深岩煤水平井套管漏点检测的应用

Application of Fiber Optic Logging in casing leak detection of deep coal horizontal well

深岩煤水平井产层套管泄漏严重影响完井、压裂等后期生产措施的实施,通过分析套管发生漏失的主要原因,对比国内外各种常用漏点检测方法的原理和优缺点,提出采用光纤测井的方法对深岩煤水平井套管漏点进行检测,应用结果表明:光纤测井在多发性、间歇性、微漏失量套管漏点检测,具有非常明细的优势,比用常规方法检测套管漏点时间更短、精度更高。

Casing leakage in production layer of deep coal horizontal well seriously affects the implementation of late production measures such as completion,fracturing and so on,by comparing the principle,merits and demerits of various common leak detection methods at home and abroad,the method of optical fiber logging is proposed to detect the leak point of casing in deep rock and coal horizontal wells,the application results show that the fiber-optic logging has the advantages of less time and higher precision than conventional methods in detecting casing leaks with multiple,intermittent and micro-leakage.