Nanopore structure comparison between shale oil and shale gas: examples from the Bakken and Longmaxi Formations

Abstract In order to analyze and compare the differences in pore structures between shale gas and shale oil formations, a few samples from the Longmaxi and Bakken Formations were collected and studied using X-ray diffraction, LECO TOC measurement, gas adsorption and field-emission scanning electron...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Kouqi Liu, Liang Wang, Mehdi Ostadhassan, Jie Zou, Bailey Bubach, Reza Rezaee
Formato:	article
Lenguaje:	EN
Publicado:	KeAi Communications Co., Ltd. 2018
Materias:	Shale gas Shale oil Pore structure Gas adsorption Pore family Multifractal analysis Science Q Petrology QE420-499
Acceso en línea:	https://doaj.org/article/385cb30cd3cf45c1aa3c1d42cf07521c
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:385cb30cd3cf45c1aa3c1d42cf07521c
record_format	dspace
spelling	oai:doaj.org-article:385cb30cd3cf45c1aa3c1d42cf07521c2021-12-02T10:01:11ZNanopore structure comparison between shale oil and shale gas: examples from the Bakken and Longmaxi Formations10.1007/s12182-018-0277-31672-51071995-8226https://doaj.org/article/385cb30cd3cf45c1aa3c1d42cf07521c2018-11-01T00:00:00Zhttp://link.springer.com/article/10.1007/s12182-018-0277-3https://doaj.org/toc/1672-5107https://doaj.org/toc/1995-8226Abstract In order to analyze and compare the differences in pore structures between shale gas and shale oil formations, a few samples from the Longmaxi and Bakken Formations were collected and studied using X-ray diffraction, LECO TOC measurement, gas adsorption and field-emission scanning electron microscope. The results show that samples from the Bakken Formation have a higher TOC than those from the Longmaxi Formation. The Longmaxi Formation has higher micropore volume and larger micropore surface area and exhibited a smaller average distribution of microsize pores compared to the Bakken Formation. Both formations have similar meso-macropore volume. The Longmaxi Formation has a much larger meso-macropore surface area, which is corresponding to a smaller average meso-macropore size. CO2 adsorption data processing shows that the pore size of the majority of the micropores in the samples from the Longmaxi Formation is less than 1 nm, while the pore size of the most of the micropores in the samples from the Bakken Formation is larger than 1 nm. Both formations have the same number of pore clusters in the 2–20 nm range, but the Bakken Formation has two additional pore size groups with mean pore size diameters larger than 20 nm. Multifractal analysis of pore size distribution curves that was derived from gas adsorption indicates that the samples from the Longmaxi Formation have more significant micropore heterogeneity and less meso-macropore heterogeneity. Abundant micropores as well as meso-macropores exist in the organic matter in the Longmaxi Formation, while the organic matter of the Bakken Formation hosts mainly micropores.Kouqi LiuLiang WangMehdi OstadhassanJie ZouBailey BubachReza RezaeeKeAi Communications Co., Ltd.articleShale gasShale oilPore structureGas adsorptionPore familyMultifractal analysisScienceQPetrologyQE420-499ENPetroleum Science, Vol 16, Iss 1, Pp 77-93 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Shale gas Shale oil Pore structure Gas adsorption Pore family Multifractal analysis Science Q Petrology QE420-499
spellingShingle	Shale gas Shale oil Pore structure Gas adsorption Pore family Multifractal analysis Science Q Petrology QE420-499 Kouqi Liu Liang Wang Mehdi Ostadhassan Jie Zou Bailey Bubach Reza Rezaee Nanopore structure comparison between shale oil and shale gas: examples from the Bakken and Longmaxi Formations
description	Abstract In order to analyze and compare the differences in pore structures between shale gas and shale oil formations, a few samples from the Longmaxi and Bakken Formations were collected and studied using X-ray diffraction, LECO TOC measurement, gas adsorption and field-emission scanning electron microscope. The results show that samples from the Bakken Formation have a higher TOC than those from the Longmaxi Formation. The Longmaxi Formation has higher micropore volume and larger micropore surface area and exhibited a smaller average distribution of microsize pores compared to the Bakken Formation. Both formations have similar meso-macropore volume. The Longmaxi Formation has a much larger meso-macropore surface area, which is corresponding to a smaller average meso-macropore size. CO2 adsorption data processing shows that the pore size of the majority of the micropores in the samples from the Longmaxi Formation is less than 1 nm, while the pore size of the most of the micropores in the samples from the Bakken Formation is larger than 1 nm. Both formations have the same number of pore clusters in the 2–20 nm range, but the Bakken Formation has two additional pore size groups with mean pore size diameters larger than 20 nm. Multifractal analysis of pore size distribution curves that was derived from gas adsorption indicates that the samples from the Longmaxi Formation have more significant micropore heterogeneity and less meso-macropore heterogeneity. Abundant micropores as well as meso-macropores exist in the organic matter in the Longmaxi Formation, while the organic matter of the Bakken Formation hosts mainly micropores.
format	article
author	Kouqi Liu Liang Wang Mehdi Ostadhassan Jie Zou Bailey Bubach Reza Rezaee
author_facet	Kouqi Liu Liang Wang Mehdi Ostadhassan Jie Zou Bailey Bubach Reza Rezaee
author_sort	Kouqi Liu
title	Nanopore structure comparison between shale oil and shale gas: examples from the Bakken and Longmaxi Formations
title_short	Nanopore structure comparison between shale oil and shale gas: examples from the Bakken and Longmaxi Formations
title_full	Nanopore structure comparison between shale oil and shale gas: examples from the Bakken and Longmaxi Formations
title_fullStr	Nanopore structure comparison between shale oil and shale gas: examples from the Bakken and Longmaxi Formations
title_full_unstemmed	Nanopore structure comparison between shale oil and shale gas: examples from the Bakken and Longmaxi Formations
title_sort	nanopore structure comparison between shale oil and shale gas: examples from the bakken and longmaxi formations
publisher	KeAi Communications Co., Ltd.
publishDate	2018
url	https://doaj.org/article/385cb30cd3cf45c1aa3c1d42cf07521c
work_keys_str_mv	AT kouqiliu nanoporestructurecomparisonbetweenshaleoilandshalegasexamplesfromthebakkenandlongmaxiformations AT liangwang nanoporestructurecomparisonbetweenshaleoilandshalegasexamplesfromthebakkenandlongmaxiformations AT mehdiostadhassan nanoporestructurecomparisonbetweenshaleoilandshalegasexamplesfromthebakkenandlongmaxiformations AT jiezou nanoporestructurecomparisonbetweenshaleoilandshalegasexamplesfromthebakkenandlongmaxiformations AT baileybubach nanoporestructurecomparisonbetweenshaleoilandshalegasexamplesfromthebakkenandlongmaxiformations AT rezarezaee nanoporestructurecomparisonbetweenshaleoilandshalegasexamplesfromthebakkenandlongmaxiformations
_version_	1718397751475044352

Nanopore structure comparison between shale oil and shale gas: examples from the Bakken and Longmaxi Formations

Ejemplares similares