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:pencil2: SEDIMENTARY ORGANIC MATTER, KEROGEN TYPES & HC POTENTIAL, …
:pencil2:
SEDIMENTARY ORGANIC MATTER
SEDIMENTARY PROCESSES AND THE ACCUMULATION OF ORGANIC MATTER
Marine biogenic sediment production
invertebrates, reefs, plankton
rich, high productive ocean settings
shallow, sunlit, warm water
Nonmarine biogenic sediment production
tropical zones
deltas, lakes
plant rich environments
SEDIMENTARY BASINS
- Burial OM
Increase in
Geothermal heating
lithostatic pressure
heat & pressure
oil & gas produced
- Geological Time
deltas
water saturated
tectonic depressions
O2 deficient
Organic Carbon
derived from
plankton/ bacteria
animal detritus
plant
natural & anthropogenic sources
Inorganic carbon
ORIGIN OM
Authoctonous
Allochtonous
TYPES OF ORGANIC SEDIMENTS
Asphaltenes
Minerals
Kerogen
insoluble
pyrolysis
chemical degradation
IR, UV
- Aliphatic, Aromatic
-
by
BIOPOLYMERS
CLASS
AMORPHOUS
PALYNOMORPHS
PHYTOCLASTS
KEROGEN TYPES & HC POTENTIAL
Algal bodies
very good for oil, gas
Oxidixed woody debris
inert
planktons
good for oil & gas
Higher green plants
good for gas
:red_flag:
MACERAL
VITRINITE
medium transmittance
variety reflectance
no fluorescence
LIPTINITE
low reflectance
high transmittance
intense fluorescence
INERTINITE
high reflectance
no fluorescence
no transmittance