Experimental study of temperature effects on wellbore material properties to enhance temperature profile modeling for production wells

Wiktorski, Ekaterina; Cobbah, Catherine; Sui, Dan; Khalifeh, Mahmoud

doi:10.1016/j.petrol.2019.01.102

Cited by 16 publications

(2 citation statements)

References 25 publications

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“…Cai and other distributed temperature sensors (DTS) monitor the horizontal well production layer by real-time measurement of the temperature profile, based on the mass, momentum and energy balance equations, a coupling model of wellbore temperature distribution in the horizontal wells considering the skin factor is established to predict the temperature distribution of the wellbore and analyze the factors affecting the temperature profile of the wellbore [10]. Ekaterina Wiktorski et al used the C-Therm TCiTM Thermal Conductivity Analyzer to measure the thermophysical parameters of a typical wellbore component, particularly thermal conductivity, and applied it to the oil wellbore heat transfer model considering complex wellbore structures [11].…”

Section: Introductionmentioning

confidence: 99%

Influence of Logging Instrument Drag on Temperature Distribution in Horizontal Gas Wells

Zhang¹,

Zhang²,

Liao³

2020

Fluid Dynamics &Amp; Materials Processing

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In order to clarify the influence of the instrument's own drag on the temperature distribution in the horizontal gas wellbore in temperature logging. By constructing an indoor gas-liquid two-phase horizontal tube flow platform, the effects of the drag speed of the instrument on the temperature distribution in the wellbore were studied in the single-phase gas and gas-liquid two phases. In addition, during the process of instrument dragging, the influence of different perforation cluster opening methods and wellbore inclination on temperature distribution was also studied. The results show that the temperature fluctuation is reduced at higher drag speeds; Under a certain flow rate, the smaller the number of openings, the greater the influence of the instrument dragging inside the tube on the temperature distribution inside the tube; When the inclination angle is −5°, the drag of the instrument in the tube interferes greatly with the temperature distribution. When the inclination angle is 5°, the drag of the instrument in the tube has less interference with the temperature distribution. This study provides more reference for the future temperature calculation model of horizontal wellbore and has important research significance.

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Section: Introductionmentioning

confidence: 99%

Influence of Logging Instrument Drag on Temperature Distribution in Horizontal Gas Wells

Zhang¹,

Zhang²,

Liao³

2020

Fluid Dynamics &Amp; Materials Processing

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show abstract

“…In recent years, the research methods related to wellbore and formation temperature have been mainly analytical and numerical methods [1]. Ekaterina Wiktorski [2] derived temperature-dependent thermo-physical correlations, which were applied in a wellbore heat transfer model for oil production scenario by considering a complex well architecture. Javad Abdollahi and Stevan Dubljevic [3] simplified the heat transfer model of wellbore fluid into a set of hyperbolic partial differential equations.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Coupled Wellbore Temperature and Pressure Calculation Model and Influence Factors under Multi-Pressure System in Deep-Water Drilling

Zhang

Liu

et al. 2019

Energies

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The purpose of this paper is to discuss the variation of wellbore temperature and bottom-hole pressure with key factors in the case of coupled temperature and pressure under multi-pressure system during deep-water drilling circulation. According to the law of energy conservation and momentum equation, the coupled temperature and pressure calculation model under multi-pressure system is developed by using the comprehensive convective heat transfer coefficient. The model is discretized and solved by finite difference method and Gauss Seidel iteration respectively. Then the calculation results of this paper are compared and verified with previous research models and field measured data. The results show that when the multi-pressure system is located in the middle formation, the temperature of the annulus corresponding to location of the system is the most affected, and the temperature of the other areas in annulus is hardly affected. However, when the multi-pressure system is located at the bottom hole, the annulus temperature is greatly affected from bottom hole to mudline. In addition, the thermo-physical parameters of the drilling fluid can be changed by overflow and leakage. When only overflow occurs, the annulus temperature increases the most, but the viscosity decreases the most. When only leakage occurs, the annulus temperature decreases the most and the viscosity increases the most. However, when the overflow rate is greater than the leakage rate, the mud density and bottom-hole pressure increase the most, and both increase the least when only leakage occurs. Meanwhile, bottom-hole pressure increases with the increase of pump rate but decreases with the increase of inlet temperature. The research results can provide theoretical guidance for safe drilling in complex formations such as multi-pressure systems.

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Study on the Separation Technology of HGS and Its Effect on the Temperature Field of the Wellbore During the Multi-gradient Drilling in Deep Water

Zhang

Liu

et al. 2020

Computational and Experimental Simulations in Engineering

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Experimental study of temperature effects on wellbore material properties to enhance temperature profile modeling for production wells

Cited by 16 publications

References 25 publications

Influence of Logging Instrument Drag on Temperature Distribution in Horizontal Gas Wells

Influence of Logging Instrument Drag on Temperature Distribution in Horizontal Gas Wells

Analysis of Coupled Wellbore Temperature and Pressure Calculation Model and Influence Factors under Multi-Pressure System in Deep-Water Drilling

Study on the Separation Technology of HGS and Its Effect on the Temperature Field of the Wellbore During the Multi-gradient Drilling in Deep Water

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