skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Small-angle neutron scattering studies of pore structures of oil shales

Abstract

A principal objective of petroleum geology is to characterize the mechanisms of migration of hydrocarbons from source rocks of relatively low porosity and permeability to reservoir rocks. This requires knowledge of the pore shapes, pore distributions and anisotropies, together with the degree of maturation of the kerogen and the nature of its distribution within the pore space. Small-angle scattering of neutrons (SANS) and X-rays (SAXS) have been used to study the shapes and size distributions of pores in thirty shaly rocks from a worldwide variety of geological formations whose mineralogy and porosity are characteristic of hydrocarbon source rocks. SANS is a powerful technique for the study of rocks and other porous media because neutrons penetrate samples easily and can probe the interior of the specimens. The scattered intensity from all the samples is intense and indicates a broad distribution of pore sizes extending up to the maximum observable dimensions ({approximately}500 {angstrom}). The process of sedimentary compaction causes significant stress-induced preferred orientation with platy particles lying predominantly perpendicular to the axis of compaction. We have performed SANS measurements on this sections cut in directions both perpendicular and parallel to the bedding plane.

Authors:
Publication Date:
OSTI Identifier:
5236103
Report Number(s):
CONF-8704343-
Journal ID: ISSN 0569-3799; CODEN: ACPCA
Resource Type:
Conference
Journal Name:
American Chemical Society, Division of Petroleum Chemistry, Preprints; (USA)
Additional Journal Information:
Journal Volume: 32:1; Conference: Symposium on advances in oil shale technology, Denver, CO (USA), 5-10 Apr 1987; Journal ID: ISSN 0569-3799
Country of Publication:
United States
Language:
English
Subject:
04 OIL SHALES AND TAR SANDS; OIL SHALES; STRUCTURAL CHEMICAL ANALYSIS; EXPERIMENTAL DATA; NEUTRONS; POROSITY; SMALL ANGLE SCATTERING; BARYONS; BITUMINOUS MATERIALS; CARBONACEOUS MATERIALS; DATA; ELEMENTARY PARTICLES; ENERGY SOURCES; FERMIONS; FOSSIL FUELS; FUELS; HADRONS; INFORMATION; MATERIALS; NUCLEONS; NUMERICAL DATA; SCATTERING; 040500* - Oil Shales & Tar Sands- Properties & Composition

Citation Formats

Mildner, D F.R.. Small-angle neutron scattering studies of pore structures of oil shales. United States: N. p., 1987. Web.
Mildner, D F.R.. Small-angle neutron scattering studies of pore structures of oil shales. United States.
Mildner, D F.R.. Wed . "Small-angle neutron scattering studies of pore structures of oil shales". United States.
@article{osti_5236103,
title = {Small-angle neutron scattering studies of pore structures of oil shales},
author = {Mildner, D F.R.},
abstractNote = {A principal objective of petroleum geology is to characterize the mechanisms of migration of hydrocarbons from source rocks of relatively low porosity and permeability to reservoir rocks. This requires knowledge of the pore shapes, pore distributions and anisotropies, together with the degree of maturation of the kerogen and the nature of its distribution within the pore space. Small-angle scattering of neutrons (SANS) and X-rays (SAXS) have been used to study the shapes and size distributions of pores in thirty shaly rocks from a worldwide variety of geological formations whose mineralogy and porosity are characteristic of hydrocarbon source rocks. SANS is a powerful technique for the study of rocks and other porous media because neutrons penetrate samples easily and can probe the interior of the specimens. The scattered intensity from all the samples is intense and indicates a broad distribution of pore sizes extending up to the maximum observable dimensions ({approximately}500 {angstrom}). The process of sedimentary compaction causes significant stress-induced preferred orientation with platy particles lying predominantly perpendicular to the axis of compaction. We have performed SANS measurements on this sections cut in directions both perpendicular and parallel to the bedding plane.},
doi = {},
url = {https://www.osti.gov/biblio/5236103}, journal = {American Chemical Society, Division of Petroleum Chemistry, Preprints; (USA)},
issn = {0569-3799},
number = ,
volume = 32:1,
place = {United States},
year = {1987},
month = {4}
}

Conference:
Other availability
Please see Document Availability for additional information on obtaining the full-text document. Library patrons may search WorldCat to identify libraries that hold this conference proceeding.

Save / Share: