NDLS-3000网络双测井系统解决声感并测干扰的方法

Approaches of solving the interference caused by sonic and induction combination measurement in NDLS-3000 system.

声感并测时,特别是测高阻地层或遇到测井电缆性能不好时,声波同步对中感应、八侧向曲线存在严重的干扰。NDLS-3000网络双测井系统为了解决声感并测干扰,通过应用可控定时采样和间隔可控声波同步技术,改变了直流板采样方式和声波板声波同步产生方式,在满足采样精度要求的情况下,获得了最佳的并测效果。

Firstly presented is the sonic synchronization′s interfere upon the RILM and RFOC when sonic and induction combine to measure,especially in the high resistivity stratum or the performance of logging cable is not good.Secondly introduced is NDLS-3000 network double logging system,by using sampling time controlling and sonic synchronization partition controlling technology,direct current board sampling mode and sonic board sonic synchronization producing mode can be changed in order to resolve the interference by sonic and induction combination measuring.