Study on the Mechanical Extended-Reach Limit Prediction Model of Horizontal Drilling with Dual-Channel Drillpipes

Extended-reach horizontal wells are critical for the development of unconventional reservoirs. Dual-channel drill pipe drilling has a great advantage in improving the horizontal section length, while the research on its mechanical extended-reach limit prediction model is insufficient. In this paper,...

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Autores principales:	Tianyi Tan, Hui Zhang
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	horizontal well drilling dual-channel drillpipe mechanical extended-reach limit torque and drag Technology T
Acceso en línea:	https://doaj.org/article/bcf74f4c88fe42378991fdc2a6a858b5
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spelling	oai:doaj.org-article:bcf74f4c88fe42378991fdc2a6a858b52021-11-25T17:28:18ZStudy on the Mechanical Extended-Reach Limit Prediction Model of Horizontal Drilling with Dual-Channel Drillpipes10.3390/en142277321996-1073https://doaj.org/article/bcf74f4c88fe42378991fdc2a6a858b52021-11-01T00:00:00Zhttps://www.mdpi.com/1996-1073/14/22/7732https://doaj.org/toc/1996-1073Extended-reach horizontal wells are critical for the development of unconventional reservoirs. Dual-channel drill pipe drilling has a great advantage in improving the horizontal section length, while the research on its mechanical extended-reach limit prediction model is insufficient. In this paper, the torque and drag model is built considering the additional axial force of the sliding piston on the dual-channel drillpipe. Based on the torque and drag model, the mechanical extended-reach limit model for dual-channel drilling is established. A case study including a comparison to the conventional drilling method and sensitivity analysis is conducted. The result shows that under the same conditions, the mechanical extended-reach limit of the dual-channel drilling method is 10,592.2 m, while it is 9030.6 m of the conventional drilling method. The dual-channel drilling method achieves a further mechanical extended-reach limit than the conventional drilling method. To improve the mechanical extended-reach limit of dual-channel drilling, a higher back pressure on the sliding piston, a deeper measured depth of the sliding piston, a higher density of the passive drilling fluid, a smaller outer diameter of the outer pipe, a lower weight on bit and rate of penetration should be adopted. The work in this paper completes the extended-reach limit theory of dual-channel drilling, providing a guide for better use in unconventional reservoir development.Tianyi TanHui ZhangMDPI AGarticlehorizontal well drillingdual-channel drillpipemechanical extended-reach limittorque and dragTechnologyTENEnergies, Vol 14, Iss 7732, p 7732 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	horizontal well drilling dual-channel drillpipe mechanical extended-reach limit torque and drag Technology T
spellingShingle	horizontal well drilling dual-channel drillpipe mechanical extended-reach limit torque and drag Technology T Tianyi Tan Hui Zhang Study on the Mechanical Extended-Reach Limit Prediction Model of Horizontal Drilling with Dual-Channel Drillpipes
description	Extended-reach horizontal wells are critical for the development of unconventional reservoirs. Dual-channel drill pipe drilling has a great advantage in improving the horizontal section length, while the research on its mechanical extended-reach limit prediction model is insufficient. In this paper, the torque and drag model is built considering the additional axial force of the sliding piston on the dual-channel drillpipe. Based on the torque and drag model, the mechanical extended-reach limit model for dual-channel drilling is established. A case study including a comparison to the conventional drilling method and sensitivity analysis is conducted. The result shows that under the same conditions, the mechanical extended-reach limit of the dual-channel drilling method is 10,592.2 m, while it is 9030.6 m of the conventional drilling method. The dual-channel drilling method achieves a further mechanical extended-reach limit than the conventional drilling method. To improve the mechanical extended-reach limit of dual-channel drilling, a higher back pressure on the sliding piston, a deeper measured depth of the sliding piston, a higher density of the passive drilling fluid, a smaller outer diameter of the outer pipe, a lower weight on bit and rate of penetration should be adopted. The work in this paper completes the extended-reach limit theory of dual-channel drilling, providing a guide for better use in unconventional reservoir development.
format	article
author	Tianyi Tan Hui Zhang
author_facet	Tianyi Tan Hui Zhang
author_sort	Tianyi Tan
title	Study on the Mechanical Extended-Reach Limit Prediction Model of Horizontal Drilling with Dual-Channel Drillpipes
title_short	Study on the Mechanical Extended-Reach Limit Prediction Model of Horizontal Drilling with Dual-Channel Drillpipes
title_full	Study on the Mechanical Extended-Reach Limit Prediction Model of Horizontal Drilling with Dual-Channel Drillpipes
title_fullStr	Study on the Mechanical Extended-Reach Limit Prediction Model of Horizontal Drilling with Dual-Channel Drillpipes
title_full_unstemmed	Study on the Mechanical Extended-Reach Limit Prediction Model of Horizontal Drilling with Dual-Channel Drillpipes
title_sort	study on the mechanical extended-reach limit prediction model of horizontal drilling with dual-channel drillpipes
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/bcf74f4c88fe42378991fdc2a6a858b5
work_keys_str_mv	AT tianyitan studyonthemechanicalextendedreachlimitpredictionmodelofhorizontaldrillingwithdualchanneldrillpipes AT huizhang studyonthemechanicalextendedreachlimitpredictionmodelofhorizontaldrillingwithdualchanneldrillpipes
_version_	1718412307907739648

Study on the Mechanical Extended-Reach Limit Prediction Model of Horizontal Drilling with Dual-Channel Drillpipes

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