Design and Implementation of CRO5531 Crossover
Peng Zhenghuan · Well Logging Technology · 2010
A CRO5531 crossover,based on its interface,connects Russian induction tool to gamma telemetry tool and finally makes EILog surface system compatible with Russian induction tool.The sub's DTB and CAN bus core reserved is a FPGA developed by MAX + PLUSⅡ.A dynamic library and a data processing dynamic library are added to the original surface software to achieve Russian induction logging data acquiring and processing.Surface tests haved proved that not only the sub's conversion accuracy error is less 0.1% compared to its original panel,but also the curves' repeatability and consistency haved come to the requirements by logging comparison including original panel,dual induction laterallog 8 and array induction logging data.The downhole tools have been well applied in practice and achieved the logging requirements with higher accuracy and better stability.