PRODUCTION LOGGING-1: Friction affects fluid-density logs in high-rate wells

One needs downhole in situ monitoring to diagnose what and, even more importantly, where a problem lies in a producing well.The well's behavior over its life cannot be managed by monitoring surface measurements alone.Management of a well's performance not only includes the diagnosis of problems when the well does not perform to expectations, but also the optimization of flow to maximize the rate of return of the investment in the well.A key element in reservoir modeling, in all but the simplest reservoirs, is the knowledge of the fluids flowing from each reservoir unit. But in wells producing at high flow rates, friction effects can render logs recorded with a differential-pressur...

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