Transient Temperature Impact on Deep Reservoir Fracturing

Hydraulic fracturing enables the commercial development of unconventional resources in shales and tight formations. The conductivity and complexity of created fractures are critically dependent on the rheology of fracking fluid and the mechanics properties of rocks. Literatures show that both the rh...

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Main Authors: Yu Jiang, John E. Killough, Xingru Wu, Yongzheng Cui
Format: Article
Language:English
Published: Wiley 2021-01-01
Series:Geofluids
Online Access:http://dx.doi.org/10.1155/2021/6653442
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author Yu Jiang
John E. Killough
Xingru Wu
Yongzheng Cui
author_facet Yu Jiang
John E. Killough
Xingru Wu
Yongzheng Cui
author_sort Yu Jiang
collection DOAJ
description Hydraulic fracturing enables the commercial development of unconventional resources in shales and tight formations. The conductivity and complexity of created fractures are critically dependent on the rheology of fracking fluid and the mechanics properties of rocks. Literatures show that both the rheology of fracturing fluid and fracture propagation dynamics are affected by the temperature of fracturing fluid. Neglecting the temperature transient behaviour may defeat the purpose of fracturing optimization during fracture initiation, propagation, and sand packing. The objective of this paper is to investigate the impact of temperature on fracturing design by studying the transient temperature behaviour across a complex wellbore using numerical modelling by coupling a finite difference heat transfer model with a dynamic fracture propagation model. The study results show that with the injection of cold fracturing fluid, hydraulic fracture propagation is decelerated, and production prediction is thus lessened compared with the case ignoring temperature effect. For multistage fractured wells, fracture geometry enlarges along the fluid flow direction in a horizontal segment. This potentially lowers the cost of hydraulic fracturing designs.
format Article
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institution Kabale University
issn 1468-8123
language English
publishDate 2021-01-01
publisher Wiley
record_format Article
series Geofluids
spelling doaj-art-51e5585125944461aa01ddc1f836cb122025-02-03T06:11:19ZengWileyGeofluids1468-81232021-01-01202110.1155/2021/66534426653442Transient Temperature Impact on Deep Reservoir FracturingYu Jiang0John E. Killough1Xingru Wu2Yongzheng Cui3Harold Vance Department of Petroleum EngineeringHarold Vance Department of Petroleum EngineeringDepartment of Petroleum EngineeringDepartment of Petroleum EngineeringHydraulic fracturing enables the commercial development of unconventional resources in shales and tight formations. The conductivity and complexity of created fractures are critically dependent on the rheology of fracking fluid and the mechanics properties of rocks. Literatures show that both the rheology of fracturing fluid and fracture propagation dynamics are affected by the temperature of fracturing fluid. Neglecting the temperature transient behaviour may defeat the purpose of fracturing optimization during fracture initiation, propagation, and sand packing. The objective of this paper is to investigate the impact of temperature on fracturing design by studying the transient temperature behaviour across a complex wellbore using numerical modelling by coupling a finite difference heat transfer model with a dynamic fracture propagation model. The study results show that with the injection of cold fracturing fluid, hydraulic fracture propagation is decelerated, and production prediction is thus lessened compared with the case ignoring temperature effect. For multistage fractured wells, fracture geometry enlarges along the fluid flow direction in a horizontal segment. This potentially lowers the cost of hydraulic fracturing designs.http://dx.doi.org/10.1155/2021/6653442
spellingShingle Yu Jiang
John E. Killough
Xingru Wu
Yongzheng Cui
Transient Temperature Impact on Deep Reservoir Fracturing
Geofluids
title Transient Temperature Impact on Deep Reservoir Fracturing
title_full Transient Temperature Impact on Deep Reservoir Fracturing
title_fullStr Transient Temperature Impact on Deep Reservoir Fracturing
title_full_unstemmed Transient Temperature Impact on Deep Reservoir Fracturing
title_short Transient Temperature Impact on Deep Reservoir Fracturing
title_sort transient temperature impact on deep reservoir fracturing
url http://dx.doi.org/10.1155/2021/6653442
work_keys_str_mv AT yujiang transienttemperatureimpactondeepreservoirfracturing
AT johnekillough transienttemperatureimpactondeepreservoirfracturing
AT xingruwu transienttemperatureimpactondeepreservoirfracturing
AT yongzhengcui transienttemperatureimpactondeepreservoirfracturing