A novel cyclical wellbore-fluid circulation strategy for extracting geothermal energy

Saedi, A.Q. Al; Sharma, Pushpesh; Kabir, C.S.

doi:10.1016/j.energy.2021.121385

Cited by 12 publications

(11 citation statements)

References 29 publications

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“…Also, generating thermal energy at a higher temperature (greater than 80°C ) for indirect use is possible for power generation. More recently, Al-Saedi et al [29] proved the efficacy of a cyclic circulation strategy to preserve near-wellbore geothermal gradient for improving energy extraction efficiency.…”

Section: Figure 11mentioning

confidence: 99%

Green Energy Sources Reduce Carbon Footprint of Oil & Gas Industry Processes: A Review

Temizel¹,

Aydın²,

Hosgor³

et al. 2023

J Energ Power Technol

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In recent years, the oil and gas sector has been moving towards green production methods to achieve net-zero emission goals. Governments and corporations have started large-scale initiatives to deploy advanced technologies to reduce carbon footprints and prevent global warming. Herein, we have explored the emerging techniques and methods used in reducing the effects of gas emissions in the oil and gas industry. The transition process from hydrocarbons to renewable energy resources, including solar thermal applications for EOR, thermal energy extraction from hydrocarbon reservoirs, hydrogen generation strategies, and CO<sub>2</sub> EOR and storage applications, has also been discussed. Literature information and publicly available data have paved the way to provide the theoretical background, the rationale of use, screening and selection criteria, challenges, and workarounds for these novel energy sources. Systems to integrate green methods into oil and gas processes appear in detail, from screening to implementation. Then, the technical information for integrating these resources under multiple conditions that affect the system's efficiency, such as weather, seasonal temperature changes, wind, and solar exposure, have been investigated. Moreover, added benefits of such incorporation strategies, such as improved economics with minimal effects on capital intensiveness or other burdens on the overall economy, have also been addressed. The transition from fossil fuels to renewable and greener energy resources provided the underlying motivation for this study.

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Section: Figure 11mentioning

confidence: 99%

Green Energy Sources Reduce Carbon Footprint of Oil & Gas Industry Processes: A Review

Temizel¹,

Aydın²,

Hosgor³

et al. 2023

J Energ Power Technol

View full text Add to dashboard Cite

show abstract

“…The continuous fluid-circulation strategy has been investigated by many authors [2,15] in a closed-loop WBHX system for over a decade. Given the steep decline in the nearwellbore formation temperature with time, we [26] recently proposed a transient cyclical-circulation approach involving a circulation rate increase, followed by a rate decrease. Besides preserving the near-wellbore temperature, this strategy can deliver near-stable fluid temperature and power generation capability at the wellhead without well shut-in periods.…”

Section: Fluid Circulation Modeling Approachmentioning

confidence: 99%

“…As shown in [26], the governing second-order differential equation is given by the following expression:…”

Section: Fluid Circulation Modeling Approachmentioning

confidence: 99%

“…Using the superposition of the sequential flow rates with the exponential-integral or Ei-function, one can obtain the final form of the equation as follows [26]:…”

Section: Fluid Circulation Modeling Approachmentioning

confidence: 99%

“…We used our [26] recently developed transient analytical model to preserve the near-wellbore geothermal gradient. In this modeling approach, a stepwise increase and subsequent decrease of flow rates ensure minimal alteration of the geothermal gradient.…”

Section: Evaluating Well Prospectsmentioning

confidence: 99%

See 2 more Smart Citations

Understanding Thermal-Energy Extraction Prospects in Wellbore Fluid Circulation

Pushpesh¹,

Sharma²,

Saedi³

et al. 2022

Preprint

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The existing numerical and analytical models for fluid circulation in wellbores provide the necessary foundation for exploring geothermal energy prospects for generating power or hot water for various industrial usage. A steady-state fluid circulation rate in a closed-loop system provided insights into power generation's efficacy in previous studies. Lately, the introduction of analytical modeling paved the way for exploring realistic scenarios for the time-variant geothermal gradient at a well's proximity. This article attempts to provide a roadmap for geothermal energy extraction by invoking the cyclical fluid circulation strategy for ensuring a stable surface fluid temperature or power. Both increasing and decreasing stepwise rate sequence provides the desired outcome. This rate-sequencing approach leads to assessing the value proposition of proposed thermal-energy extraction strategy in various North American basins. For a given depth, the overall thermal prospect depends on a well's geographic location. Given the abundance of abandoned wells in oil fields, this study explores retrofitting such wells and drilling designed wells in geothermal-friendly areas to compare their relative economic value propositions.

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Prediction model of drilling wellbore temperature considering bit heat generation and variation of mud thermophysical parameters

Mao,

Wei,

Jia

et al. 2023

Energy

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A novel cyclical wellbore-fluid circulation strategy for extracting geothermal energy

Cited by 12 publications

References 29 publications

Green Energy Sources Reduce Carbon Footprint of Oil & Gas Industry Processes: A Review

Green Energy Sources Reduce Carbon Footprint of Oil & Gas Industry Processes: A Review

Understanding Thermal-Energy Extraction Prospects in Wellbore Fluid Circulation

Prediction model of drilling wellbore temperature considering bit heat generation and variation of mud thermophysical parameters

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