Dynamic Temperature Analysis Under Variable Rate and Pressure Conditions for Transient and Boundary Dominated Flow

Mao, Yilin; Zeidouni, Mehdi

doi:10.1007/s11242-019-01234-w

Cited by 9 publications

(3 citation statements)

References 49 publications

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“…Many investigations have appeared in the literature on transient-temperature analysis in hydrocarbon and geothermal reservoirs. Some of these studies include those of App and Yoshioka [54], Duru and Horne [55], Mao and Zeidouni [56,57], Onur et al [58], Galvao et al [59], and Al Saedi and Kabir [60][61][62], among others. Besides estimating the initial formation temperature, handling the gauge placement and Joule-Thompson or J-T effect became the focal points of some of these studies.…”

Section: Heat-flow Rate Estimation From Fluid-flow Rate and Related A...mentioning

confidence: 99%

A Review of Practical Applications of Fluid Flow and Associated Heat Transfer Modeling in Wellbores

Kabir¹

2023

J Energ Power Technol

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Investigations on two-phase gas/liquid flow in pipes have been under study for nearly six decades. These studies have significantly assisted in managing fluid flow in the wellbore and surface networks, leading to the separation of phases and transmission of oil and gas into the market. This study summarizes some of the main lessons learned in flow through wellbores. Besides understanding some of the fundamental principles, we focused on the practical items of interest: Conventional production scenarios for oil and gas wells; Liquid loading in gas wells; Production in geothermal wells; Heat flow from fluid flow; Transient non-isothermal wellbore modeling; Well blowout in drilling operation; Estimating static geothermal and flowing-temperature gradients in gas wells; Heat mining with fluid circulation in wellbores. Given the diversity of the methods mentioned above, understanding flows in the wellbore and the reservoir becomes equally important. One critical item is the fluid temperature measurement associated with the fluid flow that enables validation of the fluid flow rate, besides revealing information about the reservoir characteristics.

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Section: Heat-flow Rate Estimation From Fluid-flow Rate and Related A...mentioning

confidence: 99%

A Review of Practical Applications of Fluid Flow and Associated Heat Transfer Modeling in Wellbores

Kabir¹

2023

J Energ Power Technol

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“…They used the exponential integral (Ei) solution for pressure and substituted pressure derivatives with respect to radius and time in the temperature model. Mao and Zeidouni [16,17] presented several analytical models for sandface temperature in a variety of reservoir and wellbore cases, including boundary dominated flow, near wellbore damage zone, variable flowrate, and multilayer reservoirs with crossflow. They also presented workflows for analysis of sandface temperature to characterize reservoir properties in damaged and undamaged zones.…”

Section: Literature Review Of Thermal Flow Modelsmentioning

confidence: 99%

An efficient numerical model for nonisothermal fluid flow through porous media

Dastkhan

Kazemi

2021

Can J Chem Eng

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Temperature transient analysis has gained increasing attention in recent years due to the widespread application of downhole temperature sensors with high resolution and accuracy. With the fast, high resolution, and accurate temperature sensors in oil and gas wells, there is a need for the models and methods for analysis of transient temperature data in order to identify production and well completion problems and calculation of reservoir properties. Although

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“…A vast majority of research is being steered towards use of temperature transient analysis (TTA) methods to infer reservoir and well properties and also to mitigate the non‐uniqueness of pressure transient analysis (PTA) results. Publications by Duru and Horne, [ 6 ] Mao and Zeidouni, [ 7,8 ] Panini et al, [ 9 ] Onur et al, [ 10 ] Onur and Cinar, [ 11 ] and Chevarunotai et al [ 12 ] are just a few examples. In proposed TTA methods, temperature variations are used to estimate permeability, skin factor, skin radius, and porosity.…”

Section: Introductionmentioning

confidence: 99%

The impact of isothermal flow assumption on accuracy of pressure transient analysis results

Dastkhan

Kazemi

2021

Can J Chem Eng

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Adiabatic expansion and viscous dissipation of fluid flow in porous media result in considerable heating or cooling of hydrocarbon fluids when pressure gradients are very large. Traditionally, fluid flow in porous media has been assumed isothermal in hydrocarbon reservoirs. While this assumption helps with simplifying the physics of fluid flow by neglecting the thermal effects, it imposes a dominant impact on fluid properties in situations where flow undergoes fast paced and abrupt changes in flow rate and or pressure. The analytical solutions of fluid flow for pressure transient analysis rely on the isothermal flow assumption. Since the variations of fluid properties are not accounted for in temperature fluctuations, there is an inherent error in standard methods of well test analysis. In this paper, the errors in pressure transient analysis as a consequence of the assumption of isothermal fluid flow are investigated. The magnitude of error is quantified as a function of flow rate and pressure drop. Error analysis shows that at higher flow rates, the thermal impacts are elevated such that the application of isothermal flow models becomes erroneous and invalid. It can be shown that oil well tests are more influenced by thermal effects compared to gas well tests in conventional dry gas reservoirs. This study highlights an important thermal impact that is often neglected and should be considered in the design, execution, and analysis stages of well testing. Also, it suggests that isothermal analytical models should be avoided for well test analysis with large flow rates.

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Dynamic Temperature Analysis Under Variable Rate and Pressure Conditions for Transient and Boundary Dominated Flow

Cited by 9 publications

References 49 publications

A Review of Practical Applications of Fluid Flow and Associated Heat Transfer Modeling in Wellbores

A Review of Practical Applications of Fluid Flow and Associated Heat Transfer Modeling in Wellbores

An efficient numerical model for nonisothermal fluid flow through porous media

The impact of isothermal flow assumption on accuracy of pressure transient analysis results

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