Friction calculation and packing effect analysis for gravel packing in deepwater horizontal wells

Abstract Gravel packing is one of the most commonly used well‐completion methods for controlling sand production in deepwater horizontal gas wells. Both the gravel‐packing mechanisms and the technical difficulties of gravel packing in a horizontal well are discussed in this paper. Subsequently, pack...

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Autores principales:	Min Wen, Hui Huang, Shengtian Zhou, Baitao Fan, Hao Qiu
Formato:	article
Lenguaje:	EN
Publicado:	Wiley 2021
Materias:	deepwater friction gas field gravel pack long horizontal well Technology T Science Q
Acceso en línea:	https://doaj.org/article/db0c370b765a436a82e386f8693c0361
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spelling	oai:doaj.org-article:db0c370b765a436a82e386f8693c03612021-12-02T05:24:30ZFriction calculation and packing effect analysis for gravel packing in deepwater horizontal wells2050-050510.1002/ese3.991https://doaj.org/article/db0c370b765a436a82e386f8693c03612021-12-01T00:00:00Zhttps://doi.org/10.1002/ese3.991https://doaj.org/toc/2050-0505Abstract Gravel packing is one of the most commonly used well‐completion methods for controlling sand production in deepwater horizontal gas wells. Both the gravel‐packing mechanisms and the technical difficulties of gravel packing in a horizontal well are discussed in this paper. Subsequently, packing simulations were conducted based on geological data from a well in the LS gas field in the northern South China Sea. The factors influencing the gravel‐packing process were quantitatively analyzed. The influences of the pump rate, carrying fluid leak‐off ratio, and density of gravel on the sand‐dune ratio of the α‐wave, height of the sand dune, packing length of the α‐wave, and packing pressure were analyzed. The results show that the pipe string injection friction is the largest at the slurry injection stage and the α‐wave packing stage. In the β‐wave packing stage, the downhole horizontal flow friction becomes the main pressure loss. The friction increased when the β‐wave packing reached the heel of the horizontal wells. As a result, the packing pressure can easily exceed the formation fracture pressure. Furthermore, the lower the pump rate, the higher the sand‐dune ratio, which would cause premature screen‐out and blockage. Therefore, optimizing the pump rate is essential to ensure that the sand‐dune ratio meets the designed requirements. Under a certain leak‐off rate, the lower the gravel density, the longer the packing length of the α‐wave. For a long horizontal well, the step‐down method can be used to control the packing pressure during the β‐wave packing stage. The results provide technical support for field gravel packing.Min WenHui HuangShengtian ZhouBaitao FanHao QiuWileyarticledeepwaterfrictiongas fieldgravel packlong horizontal wellTechnologyTScienceQENEnergy Science & Engineering, Vol 9, Iss 12, Pp 2380-2387 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	deepwater friction gas field gravel pack long horizontal well Technology T Science Q
spellingShingle	deepwater friction gas field gravel pack long horizontal well Technology T Science Q Min Wen Hui Huang Shengtian Zhou Baitao Fan Hao Qiu Friction calculation and packing effect analysis for gravel packing in deepwater horizontal wells
description	Abstract Gravel packing is one of the most commonly used well‐completion methods for controlling sand production in deepwater horizontal gas wells. Both the gravel‐packing mechanisms and the technical difficulties of gravel packing in a horizontal well are discussed in this paper. Subsequently, packing simulations were conducted based on geological data from a well in the LS gas field in the northern South China Sea. The factors influencing the gravel‐packing process were quantitatively analyzed. The influences of the pump rate, carrying fluid leak‐off ratio, and density of gravel on the sand‐dune ratio of the α‐wave, height of the sand dune, packing length of the α‐wave, and packing pressure were analyzed. The results show that the pipe string injection friction is the largest at the slurry injection stage and the α‐wave packing stage. In the β‐wave packing stage, the downhole horizontal flow friction becomes the main pressure loss. The friction increased when the β‐wave packing reached the heel of the horizontal wells. As a result, the packing pressure can easily exceed the formation fracture pressure. Furthermore, the lower the pump rate, the higher the sand‐dune ratio, which would cause premature screen‐out and blockage. Therefore, optimizing the pump rate is essential to ensure that the sand‐dune ratio meets the designed requirements. Under a certain leak‐off rate, the lower the gravel density, the longer the packing length of the α‐wave. For a long horizontal well, the step‐down method can be used to control the packing pressure during the β‐wave packing stage. The results provide technical support for field gravel packing.
format	article
author	Min Wen Hui Huang Shengtian Zhou Baitao Fan Hao Qiu
author_facet	Min Wen Hui Huang Shengtian Zhou Baitao Fan Hao Qiu
author_sort	Min Wen
title	Friction calculation and packing effect analysis for gravel packing in deepwater horizontal wells
title_short	Friction calculation and packing effect analysis for gravel packing in deepwater horizontal wells
title_full	Friction calculation and packing effect analysis for gravel packing in deepwater horizontal wells
title_fullStr	Friction calculation and packing effect analysis for gravel packing in deepwater horizontal wells
title_full_unstemmed	Friction calculation and packing effect analysis for gravel packing in deepwater horizontal wells
title_sort	friction calculation and packing effect analysis for gravel packing in deepwater horizontal wells
publisher	Wiley
publishDate	2021
url	https://doaj.org/article/db0c370b765a436a82e386f8693c0361
work_keys_str_mv	AT minwen frictioncalculationandpackingeffectanalysisforgravelpackingindeepwaterhorizontalwells AT huihuang frictioncalculationandpackingeffectanalysisforgravelpackingindeepwaterhorizontalwells AT shengtianzhou frictioncalculationandpackingeffectanalysisforgravelpackingindeepwaterhorizontalwells AT baitaofan frictioncalculationandpackingeffectanalysisforgravelpackingindeepwaterhorizontalwells AT haoqiu frictioncalculationandpackingeffectanalysisforgravelpackingindeepwaterhorizontalwells
_version_	1718400443528249344

Friction calculation and packing effect analysis for gravel packing in deepwater horizontal wells

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