Quantitative evaluation of water-flooded zones by using raw resistivity inversion

It provides a new way for water-flooded zone interpretation.

In waterflood-production oilfields, formation water resistivity of water-flooded zone is not only the basic parameter for water-flooded zone evaluation but also the "bottle neck" which restrict water-flooded zone evaluation.

Study on evaluation method of water flooded layer in Chaoyanggou Oilfield;

Wavelet packet energy characteristic identification of water flooded layer;

This paper introduces a new method used to identify the water flooded layers on the basis of the flow unit.

Logging interpretation of watered-out zone in high water cut stage in low permeability reservoir;

Recognizing watered-out zones by using traditional well logs;

Regional linear model of water cut vs. water saturation in watered-out zone and its application;

By using the geochemical log data, the basic principles and its parameter calculation method for water-out reservoir interpretation are described, the standard and interpreting chartboard for geochemical dividing of water-out reservoir in Zaoyuan Oilfield are established from the aspects of reservoir geochemistry.

BNLL is one of the important methods of water-out reservoir interpretation of low porosity, low permeability and low salinity reservoirs in casing wells of Tuha Oilfield, by which the water-out degree and fluid properties are displayed visually, the special action of BNLL logging technique in finding out residual oil is demonstrated through quantitative interpretation and examples.