METHOD FOR MEASURING THE VELOCITY OF WATER FLOW THROUGH NESTED CONDUITS

摘要

This disclosure provides a method for measuring the velocities of water volumes flowing co-directionally in separate conduits nested such as in injection or production well-bores. The method allows an oxygen activation measurement of thevelocity of the water flow in the tubing-casing annulus in the presence of waterflowing in the tubing string in the same direction. The method allows continuouslogging at variable or constant cable velocities or stationary logging. Based on the method of velocity gauging, the method isolates the signal from the annular flow and can produce a continuous log of linear and volumetric annular flow rates with depth.