A comprehensive pore structure study of the Bakken Shale with SANS, N2 adsorption and mercury intrusion

Small angle neutron scattering (SANS) analysis was performed on six Bakken Shale samples with different maturities to reveal the complexities in the pore structure. Pore size distribution (PSD), porosity and specific surface area (SSA) were calculated from SANS data via the Polydisperse Spherical Po...

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Main Authors: Liu, K., Ostadhassan, M., Sun, L., Zou, J., Yuan, Yujie, Gentzis, T., Zhang, Y., Carvajal-Ortiz, H., Rezaee, Reza
Format: Journal Article
Language:English
Published: ELSEVIER SCI LTD 2019
Subjects:
Online Access:http://hdl.handle.net/20.500.11937/89570
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author Liu, K.
Ostadhassan, M.
Sun, L.
Zou, J.
Yuan, Yujie
Gentzis, T.
Zhang, Y.
Carvajal-Ortiz, H.
Rezaee, Reza
author_facet Liu, K.
Ostadhassan, M.
Sun, L.
Zou, J.
Yuan, Yujie
Gentzis, T.
Zhang, Y.
Carvajal-Ortiz, H.
Rezaee, Reza
author_sort Liu, K.
building Curtin Institutional Repository
collection Online Access
description Small angle neutron scattering (SANS) analysis was performed on six Bakken Shale samples with different maturities to reveal the complexities in the pore structure. Pore size distribution (PSD), porosity and specific surface area (SSA) were calculated from SANS data via the Polydisperse Spherical Pore (PDSP) model and compared with the data from N2 adsorption and mercury intrusion. The results showed that the Bakken samples have a very small porosity value (less than 1%) and a very larger specific surface area (larger than 180995 cm−1) in the measuring pore size range (pore diameter: 1–200 nm). SANS and N2 adsorption can detect pores in the similar size range (2–200 nm). The SSA measured by SANS and mercury intrusion was found larger than the one detected by N2 adsorption. Pore structure information that is obtained from SANS, N2 adsorption, and mercury intrusion methods exhibited a fractal and multifractal behavior. Moreover, the pore size distribution that is calculated from SANS data was the most heterogeneous. Finally, the effects of rock composition on pore structures demonstrated that organic matter hosts some isolated pores while clay minerals do not host a large quantity of pores that are either connected or isolated.
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institution Curtin University Malaysia
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spelling curtin-20.500.11937-895702022-11-14T01:21:20Z A comprehensive pore structure study of the Bakken Shale with SANS, N2 adsorption and mercury intrusion Liu, K. Ostadhassan, M. Sun, L. Zou, J. Yuan, Yujie Gentzis, T. Zhang, Y. Carvajal-Ortiz, H. Rezaee, Reza Science & Technology Technology Energy & Fuels Engineering, Chemical Engineering Bakken Shale SANS N-2 adsorption Mercury intrusion Pore structure Rock-Eval pyrolysis ANGLE NEUTRON-SCATTERING GAS-ADSORPTION LONGMAXI SHALE POROSITY PRESSURE COAL RESERVOIRS USANS/SANS MATURATION NANOMETER Small angle neutron scattering (SANS) analysis was performed on six Bakken Shale samples with different maturities to reveal the complexities in the pore structure. Pore size distribution (PSD), porosity and specific surface area (SSA) were calculated from SANS data via the Polydisperse Spherical Pore (PDSP) model and compared with the data from N2 adsorption and mercury intrusion. The results showed that the Bakken samples have a very small porosity value (less than 1%) and a very larger specific surface area (larger than 180995 cm−1) in the measuring pore size range (pore diameter: 1–200 nm). SANS and N2 adsorption can detect pores in the similar size range (2–200 nm). The SSA measured by SANS and mercury intrusion was found larger than the one detected by N2 adsorption. Pore structure information that is obtained from SANS, N2 adsorption, and mercury intrusion methods exhibited a fractal and multifractal behavior. Moreover, the pore size distribution that is calculated from SANS data was the most heterogeneous. Finally, the effects of rock composition on pore structures demonstrated that organic matter hosts some isolated pores while clay minerals do not host a large quantity of pores that are either connected or isolated. 2019 Journal Article http://hdl.handle.net/20.500.11937/89570 10.1016/j.fuel.2019.01.174 English ELSEVIER SCI LTD restricted
spellingShingle Science & Technology
Technology
Energy & Fuels
Engineering, Chemical
Engineering
Bakken Shale
SANS
N-2 adsorption
Mercury intrusion
Pore structure
Rock-Eval pyrolysis
ANGLE NEUTRON-SCATTERING
GAS-ADSORPTION
LONGMAXI SHALE
POROSITY
PRESSURE
COAL
RESERVOIRS
USANS/SANS
MATURATION
NANOMETER
Liu, K.
Ostadhassan, M.
Sun, L.
Zou, J.
Yuan, Yujie
Gentzis, T.
Zhang, Y.
Carvajal-Ortiz, H.
Rezaee, Reza
A comprehensive pore structure study of the Bakken Shale with SANS, N2 adsorption and mercury intrusion
title A comprehensive pore structure study of the Bakken Shale with SANS, N2 adsorption and mercury intrusion
title_full A comprehensive pore structure study of the Bakken Shale with SANS, N2 adsorption and mercury intrusion
title_fullStr A comprehensive pore structure study of the Bakken Shale with SANS, N2 adsorption and mercury intrusion
title_full_unstemmed A comprehensive pore structure study of the Bakken Shale with SANS, N2 adsorption and mercury intrusion
title_short A comprehensive pore structure study of the Bakken Shale with SANS, N2 adsorption and mercury intrusion
title_sort comprehensive pore structure study of the bakken shale with sans, n2 adsorption and mercury intrusion
topic Science & Technology
Technology
Energy & Fuels
Engineering, Chemical
Engineering
Bakken Shale
SANS
N-2 adsorption
Mercury intrusion
Pore structure
Rock-Eval pyrolysis
ANGLE NEUTRON-SCATTERING
GAS-ADSORPTION
LONGMAXI SHALE
POROSITY
PRESSURE
COAL
RESERVOIRS
USANS/SANS
MATURATION
NANOMETER
url http://hdl.handle.net/20.500.11937/89570