MULTIZONE PRODUCTION MONITORING SYSTEM

摘要

In a multiple connected well, spaced apart production packers (26a-D) isolate independent zones (15-18) from one another. In each isolated production zone, a side pocket mandrel (30) with a full opening bore (40A) has lengthwise extending side by side pockets (40B, 40C, 40D) for receiving a static pressure measurement instrument or tool (90); for providing an elongated pressure differential flow passageway; and for receiving a differential pressure measuring tool (74). Fluid flow in the production zone is channelled through the flow passageway to the full opening bore (40A) and the fluid is communicated to the static pressure measuring tool (90) and to the differential pressure tool (74). The static pressure and differential pressure of the fluid flow from each production zone is independently measured at the time of production and sequentially and repetitively read out at the earth's surface. From the pressure measurements and flow equations, the production flow is determined.