RK1000B Duplex Cased Hole Logging Surface System consists of a data acquisition panel and a laptop. The system completes all casing well logging operations such as production logging, engineering logging and formation parameter logging by receiving the downhole duplex (or simplex or pulse) tool signals through the data acquisition case and cooperating with wellhead depth, tension and other tools.

• It can complete all cased hole logging operations such as production logging, engineering logging and formation parameter logging.

• It can communicate with the downhole tools in full duplex mode;

• Hardware softening, function generalization and modularization: the system has simple structure, convenient for operation, strong subsequent expansibility, and no additional expansion board is needed when connecting to new tools; it adopts a general signal processing platform. The digital signal processing module is composed of DSP and FPGA, high-speed AD, 14-Bit, 6Msp and other chips. FPGA is responsible for peripheral interface, time-division signal demodulation, downlink command modulation and other tasks. DSP completes the digital filtering and decoding tasks of the upstream signal, and the high-speed AD completes the digitization of the upstream signal

• The logging tool driver loading and signal processing become intellectualized; choose to configure logging service form, and the corresponding DSP firmware program is downloaded to the external program memory of the DSP through USB bus, and loads the DSP dynamically to complete various logging service tasks. All firmware programs are stored in PC, and the specific logging service forms are selected before being loaded into DSP to complete the corresponding logging tasks;

• It has the functions of virtual oscilloscope and basic interpretation: the virtual oscilloscope runs simultaneously with the logging program, and displays the current signal waveform in real time;

• There are 64 data channels, which can connect with various imaging logging tools;

• It can display up to 100 curves.