Effects of interactions in natural gas/water/rock system on hydrocarbon migration and accumulation

Abstract The study of natural gas accumulation process in tight formation has become the focus of the petroleum industry. One of the priorities is the effects of interactions in natural gas/water/rock system on hydrocarbon migration and accumulation process. On the macroscopic scale, we investigate...

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Autores principales:	Lin Jiang, Wen Zhao, Jianguo Huang, Yang Fan, Jiaqing Hao
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/69b73109c58a467fa55cdf8a1e399299
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spelling	oai:doaj.org-article:69b73109c58a467fa55cdf8a1e3992992021-11-14T12:19:58ZEffects of interactions in natural gas/water/rock system on hydrocarbon migration and accumulation10.1038/s41598-021-01653-02045-2322https://doaj.org/article/69b73109c58a467fa55cdf8a1e3992992021-11-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-01653-0https://doaj.org/toc/2045-2322Abstract The study of natural gas accumulation process in tight formation has become the focus of the petroleum industry. One of the priorities is the effects of interactions in natural gas/water/rock system on hydrocarbon migration and accumulation process. On the macroscopic scale, we investigate the interactions in natural gas/water/rock system by formation fluorescence test and production data analysis. One the microscopic scale, the mechanisms are revealed by mathematical analysis and experimental methods considering the variation of geological temperature and pressure. The effects of interactions in natural gas/water/rock system are also simulated by numerical simulation. The results are visualized and quantified. A novel semi-analytical method based on a physical experiment is proposed to calculate the temperature- and pressure-dependent contact angle and interface tension which reflect the interactions in the natural gas–water–rock system. This semi-analytical is embedded in the numerical simulation during the simulation of the natural gas charging process. The results indicate that with the increase of geological temperature and pressure, the contact angle will increase and the interface tension between natural gas and water will decrease. The capillary resistance in the formation will be reduced. Since the decrease of capillary resistance, the natural gas can be charged into smaller pores, so that the actual charging threshold is lower than the one originally obtained under present reservoir conditions. After considering the temperature and pressure during the accumulation process, some sand bodies that were thought not to be charged may have natural gas accumulate.Lin JiangWen ZhaoJianguo HuangYang FanJiaqing HaoNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-13 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Lin Jiang Wen Zhao Jianguo Huang Yang Fan Jiaqing Hao Effects of interactions in natural gas/water/rock system on hydrocarbon migration and accumulation
description	Abstract The study of natural gas accumulation process in tight formation has become the focus of the petroleum industry. One of the priorities is the effects of interactions in natural gas/water/rock system on hydrocarbon migration and accumulation process. On the macroscopic scale, we investigate the interactions in natural gas/water/rock system by formation fluorescence test and production data analysis. One the microscopic scale, the mechanisms are revealed by mathematical analysis and experimental methods considering the variation of geological temperature and pressure. The effects of interactions in natural gas/water/rock system are also simulated by numerical simulation. The results are visualized and quantified. A novel semi-analytical method based on a physical experiment is proposed to calculate the temperature- and pressure-dependent contact angle and interface tension which reflect the interactions in the natural gas–water–rock system. This semi-analytical is embedded in the numerical simulation during the simulation of the natural gas charging process. The results indicate that with the increase of geological temperature and pressure, the contact angle will increase and the interface tension between natural gas and water will decrease. The capillary resistance in the formation will be reduced. Since the decrease of capillary resistance, the natural gas can be charged into smaller pores, so that the actual charging threshold is lower than the one originally obtained under present reservoir conditions. After considering the temperature and pressure during the accumulation process, some sand bodies that were thought not to be charged may have natural gas accumulate.
format	article
author	Lin Jiang Wen Zhao Jianguo Huang Yang Fan Jiaqing Hao
author_facet	Lin Jiang Wen Zhao Jianguo Huang Yang Fan Jiaqing Hao
author_sort	Lin Jiang
title	Effects of interactions in natural gas/water/rock system on hydrocarbon migration and accumulation
title_short	Effects of interactions in natural gas/water/rock system on hydrocarbon migration and accumulation
title_full	Effects of interactions in natural gas/water/rock system on hydrocarbon migration and accumulation
title_fullStr	Effects of interactions in natural gas/water/rock system on hydrocarbon migration and accumulation
title_full_unstemmed	Effects of interactions in natural gas/water/rock system on hydrocarbon migration and accumulation
title_sort	effects of interactions in natural gas/water/rock system on hydrocarbon migration and accumulation
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/69b73109c58a467fa55cdf8a1e399299
work_keys_str_mv	AT linjiang effectsofinteractionsinnaturalgaswaterrocksystemonhydrocarbonmigrationandaccumulation AT wenzhao effectsofinteractionsinnaturalgaswaterrocksystemonhydrocarbonmigrationandaccumulation AT jianguohuang effectsofinteractionsinnaturalgaswaterrocksystemonhydrocarbonmigrationandaccumulation AT yangfan effectsofinteractionsinnaturalgaswaterrocksystemonhydrocarbonmigrationandaccumulation AT jiaqinghao effectsofinteractionsinnaturalgaswaterrocksystemonhydrocarbonmigrationandaccumulation
_version_	1718429292079087616

Effects of interactions in natural gas/water/rock system on hydrocarbon migration and accumulation

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