Mathematical modeling of heat transfer in counter-current multiphase flow found in gas-drilling systems with formation fluid influx

Abstract The performance of gas-drilling (drilling oil and gas wells with air, nitrogen, or natural gas) is very unpredictable in many areas due to lack of proper design of drilling parameters because of limited understanding of gas–rock interaction which requires knowledge of heat transfer in the w...

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Autores principales:	Boyun Guo, Jun Li, Jinze Song, Gao Li
Formato:	article
Lenguaje:	EN
Publicado:	KeAi Communications Co., Ltd. 2017
Materias:	Gas-drilling Temperature Prediction Influx Joule–Thomson Cuttings Science Q Petrology QE420-499
Acceso en línea:	https://doaj.org/article/bc9e4fe6265a4be7a7aaea743d2d3371
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spelling	oai:doaj.org-article:bc9e4fe6265a4be7a7aaea743d2d33712021-12-02T02:29:16ZMathematical modeling of heat transfer in counter-current multiphase flow found in gas-drilling systems with formation fluid influx10.1007/s12182-017-0164-31672-51071995-8226https://doaj.org/article/bc9e4fe6265a4be7a7aaea743d2d33712017-06-01T00:00:00Zhttp://link.springer.com/article/10.1007/s12182-017-0164-3https://doaj.org/toc/1672-5107https://doaj.org/toc/1995-8226Abstract The performance of gas-drilling (drilling oil and gas wells with air, nitrogen, or natural gas) is very unpredictable in many areas due to lack of proper design of drilling parameters because of limited understanding of gas–rock interaction which requires knowledge of heat transfer in the well system. Complete analysis of rock failure requires an accurate mathematical model to predict gas temperature at the bottom hole. The currently available mathematical models are unsuitable for use for the purpose because they do not consider the effects of formation fluid influx, Joule–Thomson cooling, and entrained drill cuttings. A new analytical solution for predicting gas temperature profiles inside the drill string and in the annulus was derived in this study for gas-drilling, considering all these three effects. Results of sensitivity analyses show that formation fluid influx can significantly increase the temperature profiles in both the drill string and the annulus. The Joule–Thomson cooling effect lowers the temperature in the annulus only in a short interval near the bottom hole. The drill cuttings entrained at the bottom hole can slightly increase the temperature profile in the annulus.Boyun GuoJun LiJinze SongGao LiKeAi Communications Co., Ltd.articleGas-drillingTemperaturePredictionInfluxJoule–ThomsonCuttingsScienceQPetrologyQE420-499ENPetroleum Science, Vol 14, Iss 4, Pp 711-719 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Gas-drilling Temperature Prediction Influx Joule–Thomson Cuttings Science Q Petrology QE420-499
spellingShingle	Gas-drilling Temperature Prediction Influx Joule–Thomson Cuttings Science Q Petrology QE420-499 Boyun Guo Jun Li Jinze Song Gao Li Mathematical modeling of heat transfer in counter-current multiphase flow found in gas-drilling systems with formation fluid influx
description	Abstract The performance of gas-drilling (drilling oil and gas wells with air, nitrogen, or natural gas) is very unpredictable in many areas due to lack of proper design of drilling parameters because of limited understanding of gas–rock interaction which requires knowledge of heat transfer in the well system. Complete analysis of rock failure requires an accurate mathematical model to predict gas temperature at the bottom hole. The currently available mathematical models are unsuitable for use for the purpose because they do not consider the effects of formation fluid influx, Joule–Thomson cooling, and entrained drill cuttings. A new analytical solution for predicting gas temperature profiles inside the drill string and in the annulus was derived in this study for gas-drilling, considering all these three effects. Results of sensitivity analyses show that formation fluid influx can significantly increase the temperature profiles in both the drill string and the annulus. The Joule–Thomson cooling effect lowers the temperature in the annulus only in a short interval near the bottom hole. The drill cuttings entrained at the bottom hole can slightly increase the temperature profile in the annulus.
format	article
author	Boyun Guo Jun Li Jinze Song Gao Li
author_facet	Boyun Guo Jun Li Jinze Song Gao Li
author_sort	Boyun Guo
title	Mathematical modeling of heat transfer in counter-current multiphase flow found in gas-drilling systems with formation fluid influx
title_short	Mathematical modeling of heat transfer in counter-current multiphase flow found in gas-drilling systems with formation fluid influx
title_full	Mathematical modeling of heat transfer in counter-current multiphase flow found in gas-drilling systems with formation fluid influx
title_fullStr	Mathematical modeling of heat transfer in counter-current multiphase flow found in gas-drilling systems with formation fluid influx
title_full_unstemmed	Mathematical modeling of heat transfer in counter-current multiphase flow found in gas-drilling systems with formation fluid influx
title_sort	mathematical modeling of heat transfer in counter-current multiphase flow found in gas-drilling systems with formation fluid influx
publisher	KeAi Communications Co., Ltd.
publishDate	2017
url	https://doaj.org/article/bc9e4fe6265a4be7a7aaea743d2d3371
work_keys_str_mv	AT boyunguo mathematicalmodelingofheattransferincountercurrentmultiphaseflowfoundingasdrillingsystemswithformationfluidinflux AT junli mathematicalmodelingofheattransferincountercurrentmultiphaseflowfoundingasdrillingsystemswithformationfluidinflux AT jinzesong mathematicalmodelingofheattransferincountercurrentmultiphaseflowfoundingasdrillingsystemswithformationfluidinflux AT gaoli mathematicalmodelingofheattransferincountercurrentmultiphaseflowfoundingasdrillingsystemswithformationfluidinflux
_version_	1718402492031565824

Mathematical modeling of heat transfer in counter-current multiphase flow found in gas-drilling systems with formation fluid influx

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