The Memory Logging System is used where wireline conveyed real-time logging may not be realized. The downhole memory tools are deployed by slickline,coiled tubing/tubing or tractor and logged, with the data being temporarily stored in the memory. The data is retrieved for playback and further processing at surface after logging is completed. The Memory Logging System may be used in production logging, casing corrosion evaluation and cement bond evaluation etc.

Logging Process

KW Memory Logging System is composed of the surface equipment ( a PC, a Memory Control Module via a USB port and installed with the MemLog software through which the operator may send commands to the Memory Control Module. The Memory Control Module is connected to the Battery Cartridge, and then to the Memory Tool, Depending on the commands from the PC, the Memory Control Module depassivates the batteries in the Battery Cartridge or downloads data from the Memory Tool. The Time Depth Recorder is used to record in real time and display the logging time, depth, line speed and tension. The Battery Cartridge and the Memory Tool are respectively used for powering the sensing tools and storing the measurements. The Real-time Clock transmits the standard real-time clock to the memory cartridge with internal real-time clock chip for correlating depth with data. The other sensing tools are used to measure and acquiring data.