CST: Compressive Sensing Transmission for Real Time M/LWD Communication

Abstract The Measurement/Logging while Drilling (M/LWD) system is used to collect and transmit the logging data while drilling oil/gas wells, in which logging data is transmitted using Mud Pulse Telemetry. Due to the one-way non-feedback erasure channel property, it is hard to correct transmission errors caused by Mud channel noises in real time. This paper proposes a Compressive Sensing (CS) based Transmission (CST) scheme for logging data delivering in M/LWD systems. The CTS scheme is tolerant to transmission errors without Automatic Request for Repetition mechanism and error correcting code, and also provides an interface for field technicians to adjust the effective coding rate according to various transmission accuracy requirements. To further improve the communication efficiency of CST, we introduce the improved Bernoulli matrix as the measurement matrix in the CS framework. Extensive experiments results with the real logging data are presented to verify the performance of the CST scheme.