哈里伯顿ALD随钻密度测量原理及曲线优选

The Principles of ALD Density Measurement While Drilling from Halliburton and Its Curve Selection

南海东部某油田位于珠江口盆地东沙隆起西北斜坡，随钻测井作业使用哈里伯顿FEWD系统，作业中发现随钴方位密度测井仪(ALD)提供的髙值密度fALCDLC)过层界面时出现响应过激现象。从ALD密度测量原理入手，对比了各密度曲线穿层时的响应特征，明确了不同曲线在测井处理解释工作中的适用条件，并针对不同井眼实际井况提出优选曲线处理原则，在该区测井评价工作中取得了较为良好的效果。

The Oilfield was located at the northwest slope of Dongsha Uplift of Pearl River Mouth Basin in South China Sea.FEWD system from Halliburton was used for logging while drilling operation When drilling new wells in this area,some over-responding density readings(ALCDLC)occurred in logs got from ALD tools of Halliburton Company.Starting from the principles of ALD density measurement,the response characters of each density curve going through the formation are compared,the proper conditions of different curves in logging interpretation are clarified,and based on actual situations in different wells,the principles for curve selection are proposed.It is used for logging evaluation in the area and better effect is obtained in application.