• Identification of Fluid Flow Zones in the Reservoir and Behind-Casing Through the Second Derivative of the Flowing Temperature (in Spanish)

    This presentation in Spanish (slides in English) is from the 2020 SPE Latin American and Caribbean Petroleum Engineering Conference. Our archived 2020-21 event content is now available free to SPE members!

    • Paper Number: SPE-199057-MS
    • Published: 20 July 2020
    • Authors: José W González; Alejandro Linares; Eliana Meza; Diana Chaparro; Carlos Monzon

    The objective of paper, associated with this presentation, is to identify zones of fluid movements in the reservoir and behind the casing using the second derivative of the flowing temperature (T) log in producing wells. Generally, the combination of static and flowing temperature is required in order to detect flow behind the casing, which implies shutting down the well and deferred production.

    The results indicated that there is a direct relationship between the movement of fluids with the second temperature derivative in a reservoir-wellbore system. There is a 95% consistency with production logging (PLT´s) results. Coupled with this, the open hole gamma ray (GR) log was compared with the cased hole GR, and a radioactivity increment was observed in the water production intervals which match with the changes of the second derivative of the temperature. Based on those outcomes, it was possible to identify in the reservoir-wellbore system leaks, flow behind the casing, fluid contributions in the perforated intervals and aquifer influx.

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  • Identification of Fluid Flow Zones in the Reservoir and Behind-Casing Through the Second Derivative of the Flowing Temperature (in Spanish)