Research of Networked Well Logging System Based on Ethernet Technology
Yue Hongtu · Well Logging Technology · 2012
Networked well logging system has been a new direction for well logging research these years.Introduced is a new generation of Ethernet-based well logging system which implements resource sharing,simplifies system configuration and design,enhances system operability,maintainability and reliability,makes assignments such as upper-level management strategy,control and optimization connect with control assignments of on-site equipments and therefore cuts the implementation cost of well logging system.Networked well logging system has been successfully applied to LEAP 800 well logging system developed independently by the Well Logging Technology Center of Great Wall Drilling Company.This system is a comprehensive and open network modeling platform.The upstream and downstream data rate of its telemetry system reaches up to 1 000 kbit/s and 50 kbit/s respectively,which meets the requirements of networked system.LEAP 800 well logging system achieves time synchronization with maximum tolerance of less than 5 ms,ensures favorable accuracy of the well logging system,and solves a real-time high-throughput data processing problem.