Abstract: Taking the compound flood test area of District Mid-7 in Karamay oilfield as an example, the tracer monitoring is conducted in 10 well groups in this area by selecting 8 low-concentration tracers, and the curves for these tracers are matched and analyzed finely using Eclipse. Based on the characterized parameters such as mean yield, peak breakthrough velocity, permeability multiple, tracer peak characteristic, etc., the interwell water flow channel in the test area is divided into primary predominant channel, secondary channel and normal porosity one. It is suggested that for these three channels, strong, medium and weak profile controls are applied respectively, among which when the permeability multiple is close to 8, the weak profile control is made for the normal porosity channel. In addition, this paper presents the suggestions for profile control intensity and profile control agent requirements for each layer corresponding to each well group, according to the channel types and heterogeneous features in this area.

Key words: Karamay oilfield, trace element tracer, numerical simulation, predominant channel, tracer yield curve, profile control intensity, profile control agent requirement