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

Conference · Wed Apr 01 04:00:00 EST 1987 · American Chemical Society, Division of Petroleum Chemistry, Preprints; (USA)

OSTI ID:5236103

Mildner, D F.R.

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.

• OSTI ID: 5236103
• Report Number(s): CONF-8704343--
• Conference Information: Journal Name: American Chemical Society, Division of Petroleum Chemistry, Preprints; (USA) Journal Volume: 32:1
• Country of Publication: United States
• Language: English

Related Subjects

04 OIL SHALES AND TAR SANDS
040500* -- Oil Shales & Tar Sands-- Properties & Composition
BARYONS
BITUMINOUS MATERIALS
CARBONACEOUS MATERIALS
DATA
ELEMENTARY PARTICLES
ENERGY SOURCES
EXPERIMENTAL DATA
FERMIONS
FOSSIL FUELS
FUELS
HADRONS
INFORMATION
MATERIALS
NEUTRONS
NUCLEONS
NUMERICAL DATA
OIL SHALES
POROSITY
SCATTERING
SMALL ANGLE SCATTERING
STRUCTURAL CHEMICAL ANALYSIS