| In the openhole, as heavy oil production profile logging is deeply influenced by the caliper changing and liquid viscosity. We met with great diffculty to calculate the real flow velocity in the hole. To solve the engineering problem in our logging production, based on reasarching how the downhole flow model is influenced by the caliper-changing and liquid viscosity, this paper established the two-phase flow model and two-phase flow profile velocity correction factor. Also the relationship between each production logging curve and caliper changing and liquid viscosity and lithological changeing and flow density was studied. The fine interpretion method of the heavey oil production logging interval was defined, the heavey oil spanner flowmeter logging technics was studied especially. And the under-used downholetools had been improved. At the same time the high-sensitive water-holdup logging method which is very useful in the high water-holdup well was studied, the under-used tools ware improved also. The response charts of production logging tools to different water-cut flow density and flow state was established. Reliable theory has been supplied to improve the heavy oil production logging technology and interpretation accuracy.
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