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NREL researchers model innovative reservoir designs to predict operational behaviors analyze experimental and established reservoirs and develop optimal designs for heat recovery. The plots of temperature distribution derived by both the methods match very well with each other implying that this model is suitable for determining the transient temperature distribution in a geothermal reservoir due to cold-water injection.(a)(b) (c) (d)(e)Fig. 2 Fig. 323Temperature distribution in the heterogeneous geothermal reservoir at

Chat Online### Numerical Modeling and Analytical Validation for Transient

The plots of temperature distribution derived by both the methods match very well with each other implying that this model is suitable for determining the transient temperature distribution in a geothermal reservoir due to cold-water injection.(a)(b) (c) (d)(e)Fig. 2 Fig. 323Temperature distribution in the heterogeneous geothermal reservoir at NREL researchers model innovative reservoir designs to predict operational behaviors analyze experimental and established reservoirs and develop optimal designs for heat recovery.

Chat Online### Modeling Reservoir Temperature Transients and Matching to

Modeling Reservoir Temperature Transients and Matching to Permanent Downhole Gauge Data for Reservoir Parameter Estimation. January 2008 DOI 10.2118/MS. The reservoir flow model was solved by a numerical reservoir simulation and the reservoir thermal model was formulated by transient energy balance equation considering viscous dissipation heating and temperature variation caused by fluid

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Jul 16 2015 · This invariably implies that either a Multiple Interacting Continua (MINC) or MINC-like method or other variation of dual-porosity model be used to simulate pressure and temperature transients. Some studies have included explicit representation of dominant fractures 15 16 however most hydrothermal reservoir models employ some type of To accomplish this goal we represented the naturally fractured reservoir using a double porosity model and solved the energy and mass conservation equations to study the pressure and temperature transients as function of the rock properties.

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Simulation and analysis of temperature transients in wells are therefore a promising research area at the initial stage of development. Near wellbore multiphase flow simulation considering heat transfer is not a simple task. There are aspects such as well-reservoir mutual influence where transient analysis needs to be considered. This suggests that the temperature measurements may be a useful source of reservoir information. In this study reservoir temperature-transient models were developed for single- and multiphase-fluid flows as functions of formation parameters fluid properties and changes in flow rate and pressure.

Chat Online### Field Applications of Coupled Temperature-Rate-Pressure

Pressure induced temperature transient analysis has evolved recently with the downhole temperature monitoring techniques to characterize the reservoir. In this work we develop an analytical solution to model the temperature signals associated with variable rate production of slightly compressible fluid and apply it to several field temperature measurements to characterize the reservoir. Aug 01 2018 · Modeling reservoir temperature transients and reservoir-parameter estimation constrained to the model. SPE Reservoir Eval Eng 13 (6) (2010) pp. . View Record in Scopus Google Scholar. O.O. Duru R.N. Horne. Simultaneous interpretation of pressure temperature and flow-rate data using bayesian inversion methods.

Chat Online### Temperature Transient Analysis for Reservoir

8.1 Forward and Inverse Modeling in Conventional Reservoir ..153 8.2 Effect of Fluid Property and Production Rate Variations on Temperature Transient Analysis in Conventional Reservoir ..156 8.3 Application of Temperature Transient Analysis in Unconventional Reservoir 158 transient temperature data has been conducted by Duru and Horne (2010b). In this study inverse solution of permeability and porosity distributions in reservoir were investigated by history matching to temperature data with the method of Ensemble Kalman Filter (EnKF) by using a forward model

Chat Online### Improving Mixing In A Water Storage Reservoir Using CFD

May 14 2018 · The model was run to obtain steady-state velocity distributions for constant inflow into the reservoir and the same outflow from the reservoir. The water surface in the reservoir and temperature were assumed constant in time. The model was set to run for a sufficient number of iterations to obtain a steady-state solution. Sep 01 2011 · The proposed Den Haag Zuidwest district heating system of the city of The Hague consists of a deep doublet in a Jurassic sandstone layer that is designed for a production temperature of 75 °C and a reinjection temperature of 40 °C at a flow rate of 150 m 3 h −1.The prediction of reservoir temperature and production behavior is crucial for success of the proposed geothermal doublet.

Chat Online### Improving Mixing In A Water Storage Reservoir Using CFD

May 14 2018 · The model was run to obtain steady-state velocity distributions for constant inflow into the reservoir and the same outflow from the reservoir. The water surface in the reservoir and temperature were assumed constant in time. The model was set to run for a sufficient number of iterations to obtain a steady-state solution. Nov 14 2017 · Duru OO Horne RN (2010) Modeling reservoir temperature transients and reservoir-parameter estimation constrained to the model. SPE Res Eval Eng 13(6) 873–883. doi 10.2118/PA Google Scholar

Chat Online### Modeling of Reservoir Temperature Transients and Parameter

Then performing energy mass and momentum balances reservoir temperature transient models were developed for flow of single- and multiphase fluids as functions of formation parameters fluid properties and changes in rate and pressure. The pressure fields in oil and gas bearing formations are usually transient. Modeling Reservoir Temperature Transients and Matching to Permanent Downhole Gauge Data for Reservoir Parameter Estimation. January 2008 DOI 10.2118/MS.

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Simulation and analysis of temperature transients in wells are therefore a promising research area at the initial stage of development. Near wellbore multiphase flow simulation considering heat transfer is not a simple task. There are aspects such as well-reservoir mutual influence where transient analysis needs to be considered. Modeling Reservoir Temperature Transients and Reservoir-Parameter Estimation Constrained to the Model Obinna O. Duru SPE and Roland N. Horne SPE Stanford University Summary Permanent downhole gauges (PDGs) provide a continuous source of downhole pressure temperature and sometimes flow-rate data.

Chat Online### Simultaneous Interpretation of Pressure Temperature and

As a first step to this problem a physical model was developed for the temperature profile in flowing and shut-in reservoirs as a function of formation parameters fluid properties and flow conditions in Nonetheless Temperature Transient Analysis (TTA) is not a mature technique and its capabilities have not been explored fully yet. In order to investigate the application temperature analysis to

Chat Online### Reservoir Simulationan overview ScienceDirect Topics

Oct 05 2012 · Reservoir Simulation. Reservoir simulations applying salinity-dependent relative permeability and capillary pressure functions (Jerauld et al. 2006) the addition of a dual porosity model (Wu and Bai 2009) and correlations of residual oil saturation contact angle and IFT (Al-adasani and Bai 2012) have improved the accuracy of predictions of potential incremental production achievable Transient ﬂowing-ﬂuid temperature modeling in reservoirs coupled the reservoir temperature model with Izgec et al. s (2007) analytical wellbore temperature model for ﬂuid

Chat Online### Mathematical Modeling for Predicting Steady State and

Mathematical Modeling for Predicting Steady State and Transient Characteristics of Reservoir Embedded Looped Heat Pipe (RELHP) This paper presents the heat transfer characteristics of a Reservoir Embedded Looped Heat Pipe (RELHP) with stainless steel porous wick with pore diameter of 1μm and working fluid of ammonia. Jul 16 2015 · This invariably implies that either a Multiple Interacting Continua (MINC) or MINC-like method or other variation of dual-porosity model be used to simulate pressure and temperature transients. Some studies have included explicit representation of dominant fractures 15 16 however most hydrothermal reservoir models employ some type of

Chat Online### Utilization of Temperature Data to Determine Reservoir

would minimize the di erence between reservoir temperature and model temperature. Eclipse 300 was used to generate temperature pro les. Using temperature data reservoir thickness could be determined in a partially penetrated reservoir. In other reservoir shapes information on the nonuniformity of the reservoir could be extracted Jun 03 2015 · Transient flow is most often modeled with the radial diffusivity equation which allows modeling pressure vs. time and pressure vs. distance from an observation point (typically a well). At a sufficiently large time the pressure disturbance anywhere in the reservoir is proportional to the logarithm of the inverse square of the radius away

Chat Online### The geothermal project Den Haag 3D numerical models for

Sep 01 2011 · The proposed Den Haag Zuidwest district heating system of the city of The Hague consists of a deep doublet in a Jurassic sandstone layer that is designed for a production temperature of 75 °C and a reinjection temperature of 40 °C at a flow rate of 150 m 3 h −1.The prediction of reservoir temperature and production behavior is crucial for success of the proposed geothermal doublet. John R. Fanchi in Shared Earth Modeling 2002 12.1 Pressure Transient Testing. Pressure transient testing uses changes in measurable pressure performance to infer reservoir parameters such as flow capacity average reservoir pressure in the drainage area reservoir size boundary and fault locations wellbore damage and stimulation and well deliverability.

Chat Online### The geothermal project Den Haag 3D numerical models for

Sep 01 2011 · The proposed Den Haag Zuidwest district heating system of the city of The Hague consists of a deep doublet in a Jurassic sandstone layer that is designed for a production temperature of 75 °C and a reinjection temperature of 40 °C at a flow rate of 150 m 3 h −1.The prediction of reservoir temperature and production behavior is crucial for success of the proposed geothermal doublet. Numerical simulators such as TOUGH2 allows both the reservoir and injectate temperature to be specified (McLean and Zarrouk 2015a). A standard model set-up was recently developed (McLean and Zarrouk 2015b) for geothermal PTA using TOUGH2 and PyTOUGH (Croucher 2011) to generate pressure transient data. The model was applied on a deflagration

Chat Online### A Multilayer Reservoir Thermal Stratification Module for

A more detailed description of the model components and setup are provided below. 2.1 Reservoir Geometry. Reservoir geometry affects water level fluctuation and hence stratification caused by reservoir operations (Çalışkan Elçi 2009 Casamitjana et al. 2003 Kerimoglu Rinke 2013).Current representation of reservoir geometry in hydrological and earth system models is a simple coupled the reservoir temperature model with Izge c et al. s ( 2007 ) analytical wellbore temperature model for ﬂuid temperature analysis in the entire production system.

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