Real-time Measurements for Heated Thickened Oil Wells

摘要

Signals of temperature and pressure, gathered by down-hole instruments, are instantly transmitted to the ground through the measuring and heating cables. The ground control system measures the temperature and pressure of the underground emulsion in the process of oil exploitation. The measurement principle and the specific structure of the real-time measurement system, the designs of heating and measuring cables and the real-time correction of data are discussed in detail. For the measurement of pressure, the mean error is δ =0.003Mpa and the standard deviation is σ =0.019Mpa.