Progress of Injection Profiling Technologies in Daqing

Progresses of injection profile logging technologies in 2001~2006 in Daqing oilfield are summarized: a new radioisotope carrier for tracer logging, five-parameter combo logging tools with integrated interpretation method, reliable impulse oxygen-activation logging tools, and a tracer logging technology with correlation arithmetic had been developed and applied to solve the problems that traditional injection profile logging technologies had, like radioisotope carriers’ sinking in water, adhering to injection mandrel and missing at some ultrahigh-porosity formations, or failing to work in viscous fluid in polymer injectors; these technologies basically meet the need of profiling separate-zone water injectors and polymer injectors in Daqing oilfield. Suitability of current technologies for injection profile logging and new problem they are confronted with are analyzed, and the difficulty of profiling a separate-zone polymer injector what has perforations mainly at type II and type III formations is indicated. Multi-parameter combo logging with integrated interpretation is considered as an orientation.