SPE Member Price USD 110 Addressing both steady and unsteady-state fluid flow and related heat-transfer problems, the Second Edition of Fluid Flow and Heat Transfer in Wellboresstrikes the perfect balance between theory and practice to aid understanding. Three new chapters on application of theory have been added and include probing pressure traverse in various wellbore multiphase fluid-flow situations, estimating flow rates from temperature data, translating off-bottom transient-pressure data to that at the datum depth, and a detailed discussion around newly discovered wellbore safety and integrity issues. Fundamental aspects of drilling, fluid circulation, and production operations form the foundation of this update of the 2002 original publication.

FREE WITH PURCHASE Selected Papers Supplement* which contains 5 papers written by the author team-Rashid Hasan and Shah Kabir. - A Simplified Model for Oil/Water Flow in Vertical and Deviated Wellbores - A Robust Steady-State Model for Flowing-Fluid Temperature in Complex Wells - Analytic Wellbore Temperature Model for Transient Gas-Well Testing - Sustaining Production by Managing Annular-Pressure Buildup - Interpretation of Cleanup Data in Gas-Well Testing From Derived Rates *This Selected Papers Supplement will be delivered digitally to each purchaser after payment has been processed.

Rashid Hasan is a professor of petroleum engineering at Texas A&M University (TAMU). Before joining TAMU, Hasan headed the Chemical Engineering Departments at the University of Minnesota, Duluth (UMD) and the University of North Dakota (UND), Grand Forks, and directed UND’s doctoral program in Energy Engineering. He has also worked with NASA Glenn on various aspects of multiphase flow and thermohydraulic transients. Hasan is an expert in the areas of production engineering, focusing on modeling complex transport processes in various elements of petroleum production systems. He is one of the pioneers in modeling steady and transient transport of heat and momentum in wellbores. Chertezh schit raspredeliteljnij dwg viewer.

Flow rate, produced fluid specific heat capacity, thermal conductivity and viscosity. An important role in determining the heat transfer across the wellbore.

Hasan holds a PhD degree (1979) from University of Waterloo, Canada. Shah Kabir is the proprietor of CS Kabir Consulting in Houston. With more than 40 years of experience in the oil and gas industry with Dome, Arco, Schlumberger, Chevron, and Hess, he has expertise in pressure- and rate-transient analysis, wellbore fluid- and heat-flow modeling, reservoir engineering, and testing and performance forecasting in unconventional reservoirs.

His experience includes knowledge of major oil provinces, including those in North America, North Sea, Middle East, and the Far East. He holds a master’s degree (1976) in chemical engineering from University of Calgary, Canada.

• • 2k Downloads • Abstract The conventional geothermal power plants use the reinjection wells mostly to avoid the depletion of the geothermal reservoir gathering in the underground of the produced brine. Nevertheless, reinjection operations entail high economic costs and some risks.

An alternative is the extraction of the heat without geothermal fluids production, the wellbore heat exchanger. The goal of the present paper is the analysis of the power production of the wellbore heat exchanger (WBHX) in time and the comparison between two different conversion systems of the thermal energy into electrical: the organic ranking cycle (ORC) plant and the Stirling motor. The selected case study is the oil field of Villafortuna Trecate, a medium enthalpy geothermal resource. The simulation results show a substantial decrease of the wellhead temperature in the first 6 months.

Lineage 1 bot programming tools. After 1 year, the thermal power extracted with the WBHX is greater than 1.3 MW. The design parameters are 20 m 3/h for the flow rate, outlet temperature 100.38 °C and the inlet temperature is 40 °C. The R-C318 has been selected as working fluid in the ORC plant: the net electrical power is 121 kW. The air is the working fluid in the Stirling motor: the evaluated net electrical power is 152 kW. The Stirling engine has an efficiency greater than 41% compared to a system ORC. Fig. 1 WBHX: cross section and schematic Some researchers have studied the operative parameters that influence the feasibility and efficiency of the power plants based on WBHX. Among them are the geothermal gradient, the bottomhole temperature, the depth of the well, the properties and the flow rate of the selected working fluid, the thermal insulation between the two pipes that compose the heat exchanger (Kujawa et al.; Davis and Michaelides; Bu et al.; Cheng et al., ).

Several studies have proposed the use of the borehole exchangers to convert the abandoned oil wells into geothermal ones (Kujawa et al.; Zhang et al.; Wang et al.; Davis and Michaelides; Bu et al.; Cheng et al.; Templeton et al.; Cheng et al. Considering the drilling costs almost 25% of the total costs of the power plant (Hance ), and the high costs of closure of the oil fields, the use of the WBHX could be an economic advantage both for oil companies and for geothermal companies. The main weakness of the deep borehole heat exchanger is a low efficiency in heat recovery compared to a conventional geothermal technology.