METHOD OF DETERMINING FLUID MOVEMENT PROFILE OF STACKED POOLS IN WELL Russian patent published in 2014 - IPC E21B47/103 

FIELD: physics; geophysics.

SUBSTANCE: invention relates to oil and gas well survey and specifically to determining the movement profile of fluids into a well from producing layers of multilayer reservoirs. When using the method, there is no need for thermal equilibrium time between well cleanout and perforation, and there is no need to measure the rate of change of temperature in the well before perforation thereof. The technical result is achieved by cooling the bottom-hole area before well perforation; performing well perforation and measuring flow temperature in the well over each perforation area; determining the flow rate of each producing layer, taking into account the thickness of the perforation area and using temperature measurement results obtained in the interval between the end of the initial extraction stage, characterised by the strong effect of the volume of the well and rapid change of flow temperature n the well, and the time, at the beginning of which the cooling effect of the bottom-hole area of the well on the temperature measurement becomes negligible.

EFFECT: high accuracy and reliability of determining the flow profile in a multi-pay well at the initial extraction stage, immediately after well perforation.

8 cl, 10 dwg