Applications of Nuclear Techniques to Production Profile Logging in Daqing Oilfield

The status of applying nuclear techniques to injection profile logging and production profile logging in Daqing Oilfield is introduced briefly. The measurement principles, interpretation methods and applications of through-annulus three-phase-flow logging tool, injection profile five-parameter combined logging tool and impulse oxygen activation logging tool are expounded, and the prospects of nuclear technique in production logging are described.