1. University of Georgia Department of Geology GEOL 4320/6320 Petroleum Geology
“Petroleum Systems”
From reductionist approach previously to holist here

2. “Petroleum Systems” “Plate Tectonics” “Seqeunce Stratigraphy”
University of Georgia Department of Geology GEOL 4320/6320 Petroleum Geology
“Petroleum Systems”
“Plate Tectonics”
“Seqeunce Stratigraphy”
“Integrative Petroleumology”

3. “Petroleum Systems” “Plate Tectonics” “Seqeunce Stratigraphy”
University of Georgia Department of Geology GEOL 4320/6320 Petroleum Geology
“Petroleum Systems”
“Plate Tectonics”
“Seqeunce Stratigraphy”
“Integrative Petroleumology”

4. The “Petroleum System” and/or the “Hydrocarbon Machine”
PS insp
University of Georgia Department of Geology GEOL 4320/6320 Petroleum Geology
The “Petroleum System” and/or the “Hydrocarbon Machine”
“Oil is found in the minds of men”
or, more fully,
“Where oil is first found is, in the final analysis, in the minds of men.”
Wallace E. Pratt, Chief Geologist, Humble Oil Company;
later Vice-President of Standard Oil
Wallace E. Pratt

5. The “Petroleum System” and/or the “Hydrocarbon Machine”
PS insp
University of Georgia Department of Geology GEOL 4320/6320 Petroleum Geology
The “Petroleum System” and/or the “Hydrocarbon Machine”
“Oil is found in the minds of men”
or, more fully,
“Where oil is first found is, in the final analysis, in the minds of men.”
Wallace E. Pratt, Chief Geologist, Humble Oil Company;
later Vice-President of Standard Oil
Wallace E. Pratt

6. The “Petroleum System” and/or the “Hydrocarbon Machine”
PS insp
University of Georgia Department of Geology GEOL 4320/6320 Petroleum Geology
The “Petroleum System” and/or the “Hydrocarbon Machine”
“Oil is found in the minds of men”
or, more fully,
“Where oil is first found is, in the final analysis, in the minds of men.”
Wallace E. Pratt, Chief Geologist, Humble Oil Company;
later Vice-President of Standard Oil
Wallace E. Pratt

7. The “Petroleum System” and/or the “Hydrocarbon Machine”
PS insp
University of Georgia Department of Geology GEOL 4320/6320 Petroleum Geology
The “Petroleum System” and/or the “Hydrocarbon Machine”
“Oil is found in the minds of men”
or, more fully,
“Where oil is first found is, in the final analysis, in the minds of men.”
Wallace E. Pratt, Chief Geologist, Humble Oil Company
Frequently cited by Michel T. Halbouty, past AAPG president
and winner of AGI’s Legendary Geoscientist Award
Wallace E. Pratt Michel T. Halbouty

8. The “Petroleum System” and/or the “Hydrocarbon Machine”
PS insp
University of Georgia Department of Geology GEOL 4320/6320 Petroleum Geology
The “Petroleum System” and/or the “Hydrocarbon Machine”
“Oil is found in the minds of men”
or, more fully,
“Where oil is first found is, in the final analysis, in the minds of men.”
UGA B.S. and M.S. Grads Michelle Anderson and Shawn Hall.

9. The “Petroleum System” and/or the “Hydrocarbon Machine”
PS insp
University of Georgia Department of Geology GEOL 4320/6320 Petroleum Geology
The “Petroleum System” and/or the “Hydrocarbon Machine”
“Oil is found in the minds of men”
or, more fully,
“Where oil is first found is, in the final analysis, in the minds of men.”
Wallace E. Pratt, Chief Geologist, Humble Oil Company
Less poetically,
Humans find petroleum most efficiently with a good model
of how petroleum accumulations form.

10. The “Petroleum System” and/or the “Hydrocarbon Machine”
PS defns
University of Georgia Department of Geology GEOL 4320/6320 Petroleum Geology
The “Petroleum System” and/or the “Hydrocarbon Machine”
A petroleum system: The integration in time and space of
source, migration, reservoir, trap, and seal LBR
“. . . a petroleum province can be considered as the final result of an organized set of geologic events (in space and in time) that can be called a petroleum system. In such a system, the sequence of subsidence movements and associated flows is just as decisive as lithologic and geometric factors in the formation of a group of pools.”
Perrodon & Masse 1984
The elements of a petroleum system consist of source rock, migration path, reservoir rock, seal, and trap, and those elements "must be placed in time and space such that a petroleum deposit can occur.”
Magoon 1987
“All of the factors which affect the processes of hydrocarbon
generation, migration, and accumulation constitute elements of
a total system which may be described as a machine.”
Meissner et al. 1984
Bibliography
is on next page.

11. The “Petroleum System” and/or the “Hydrocarbon Machine”
PS defns
University of Georgia Department of Geology GEOL 4320/6320 Petroleum Geology
The “Petroleum System” and/or the “Hydrocarbon Machine”
A petroleum system: The integration in time and space of
source, migration, reservoir, trap, and seal LBR
“. . . a petroleum province can be considered as the final result of an organized set of geologic events (in space and in time) that can be called a petroleum system. In such a system, the sequence of subsidence movements and associated flows is just as decisive as lithologic and geometric factors in the formation of a group of pools.”
Perrodon & Masse 1984
The elements of a petroleum system consist of source rock, migration path, reservoir rock, seal, and trap, and those elements "must be placed in time and space such that a petroleum deposit can occur.”
Magoon 1987
“All of the factors which affect the processes of hydrocarbon
generation, migration, and accumulation constitute elements of
a total system which may be described as a machine.”
Meissner et al. 1984
Bibliography
is on next page.

12. The integration in time and
PS5
University of Georgia Department of Geology GEOL 4320/6320 Petroleum Geology
Imagine a monocline. Imagine cementation of the PP beds. Imagine slow deposition of overburden, or none at all.
A petroleum system:
The integration in time and
space of source, migration pathway(s), reservoir(s),
trap(s), and seal(s).

13. The “Petroleum System” and/or the “Hydrocarbon Machine”
PS defns
University of Georgia Department of Geology GEOL 4320/6320 Petroleum Geology
The “Petroleum System” and/or the “Hydrocarbon Machine”
A petroleum system: The integration in time and space of
source, migration, reservoir, trap, and seal LBR
“. . . a petroleum province can be considered as the final result of an organized set of geologic events (in space and in time) that can be called a petroleum system. In such a system, the sequence of subsidence movements and associated flows is just as decisive as lithologic and geometric factors in the formation of a group of pools.”
Perrodon & Masse 1984
The elements of a petroleum system consist of source rock, migration path, reservoir rock, seal, and trap, and those elements "must be placed in time and space such that a petroleum deposit can occur.”
Magoon 1987
“All of the factors which affect the processes of hydrocarbon
generation, migration, and accumulation constitute elements of
a total system which may be described as a machine.”
Meissner et al. 1984
Bibliography
is on next page.

14. The “Petroleum System” and/or the “Hydrocarbon Machine”
PS defns
University of Georgia Department of Geology GEOL 4320/6320 Petroleum Geology
The “Petroleum System” and/or the “Hydrocarbon Machine”
A petroleum system: The integration in time and space of
source, migration, reservoir, trap, and seal LBR
“. . . a petroleum province can be considered as the final result of an organized set of geologic events (in space and in time) that can be called a petroleum system. In such a system, the sequence of subsidence movements and associated flows is just as decisive as lithologic and geometric factors in the formation of a group of pools.”
Perrodon & Masse 1984
The elements of a petroleum system consist of source rock, migration path, reservoir rock, seal, and trap, and those elements "must be placed in time and space such that a petroleum deposit can occur.”
Magoon 1987
“All of the factors which affect the processes of hydrocarbon
generation, migration, and accumulation constitute elements of
a total system which may be described as a machine.”
Meissner et al. 1984
Bibliography
is on next page.

15. The “Petroleum System” and/or the “Hydrocarbon Machine”
PS defns
University of Georgia Department of Geology GEOL 4320/6320 Petroleum Geology
The “Petroleum System” and/or the “Hydrocarbon Machine”
A petroleum system: The integration in time and space of
source, migration, reservoir, trap, and seal LBR
“. . . a petroleum province can be considered as the final result of an organized set of geologic events (in space and in time) that can be called a petroleum system. In such a system, the sequence of subsidence movements and associated flows is just as decisive as lithologic and geometric factors in the formation of a group of pools.”
Perrodon & Masse 1984
The elements of a petroleum system consist of source rock, migration path, reservoir rock, seal, and trap, and those elements "must be placed in time and space such that a petroleum deposit can occur.”
Magoon 1987
“All of the factors which affect the processes of hydrocarbon
generation, migration, and accumulation constitute elements of
a total system which may be described as a machine.”
Meissner et al. 1984
Bibliography
is on next page.

16. PS refs
University of Georgia Department of Geology GEOL 4320/6320 Petroleum Geology
Perrodon, A., and P. Masse, 1984, Subsidence, sedimentation and petroleum systems: Journal of Petroleum Geology, v. 7, n. 1, p
Magoon, L. B., 1987, The petroleum system—a classification scheme for research, resource assessment, and exploration (abs.): AAPG Bulletin, v. 71, n. 5, p. 587.
Magoon, L. B., and W. G. Dow, 1994, The petroleum system, in Magoon, L. B, and W. G. Dow, eds., The petroleum system—from source to trap: AAPG Memoir 60, p
Meissner, F. F., J. Woodward, and J. L. Clayton, 1984, Stratigraphic relationships and distribution of source rocks in the greater Rocky Mountain region, in J. Woodward, F. F. Meissner, and J. L. Clayton, eds., Hydrocarbon source rocks of the greater Rocky Mountain region: Denver, CO, Rocky Mountain Association of Geologists, p

17. The “Petroleum System” and/or the “Hydrocarbon Machine” PS
University of Georgia Department of Geology GEOL 4320/6320 Petroleum Geology
The “Petroleum System” and/or the “Hydrocarbon Machine”
1. Deposition of organic-rich sediment
2. Burial of same to temperature for generation of petroleum
3. Availability at Time 2 of migration pathway for petroleum
4. Availability of reservoir, seal, and trap at or after Time 2.

18. A petroleum system: The integration in time and space of PS
University of Georgia Department of Geology GEOL 4320/6320 Petroleum Geology
A petroleum system: The integration in time and space of
source, migration, reservoir, trap, and seal LBR
“. . . a petroleum province can be considered as the final result of an organized set of geologic events (in space and in time) that can be called a petroleum system. In such a system, the sequence of subsidence movements and associated flows is just as decisive as lithologic and geometric factors in the formation of a group of pools.”
Perrodon & Masse 1984

19. The integration in time and space of source, migration, reservoir,
Gussow
University of Georgia Department of Geology GEOL 4320/6320 Petroleum Geology
A petroleum system:
The integration in time
and space of source,
migration, reservoir,
trap(s), and seal.
Gussow, W. C., 1954, Differential
entrapment of oil and gas; a funda-
mental principle; American Associ-
ation of Petroleum Geologists
Bulletin, v. 39, p , as re-
prised in the Oil and Gas Journal.

20. University of Georgia Department of Geology GEOL 4320/6320 Petroleum Geology
Critical moment:
The critical moment is that point in time selected by the investigator that best depicts the generation-migration-accumulation of most hydrocarbons in a petroleum system. A map or cross section drawn at the critical moment best shows the geographic and stratigraphic extent of the system.
Magoon, L.B., and W. G. Dow, 1994, The petroleum system, in Magoon, L. B, and
W. G. Dow, eds., The Petroleum System—From Source to Trap: AAPG Memoir 60, p

21. The critical moment is the time of source-rock maturation
University of Georgia Department of Geology GEOL 4320/6320 Petroleum Geology
Critical moment:
The critical moment is that point in time selected by the investigator that best depicts the generation-migration-accumulation of most hydrocarbons in a petroleum system. A map or cross section drawn at the critical moment best shows the geographic and stratigraphic extent of the system.
Magoon, L.B., and W. G. Dow, 1994, The petroleum system, in Magoon, L. B, and
W. G. Dow, eds., The Petroleum System—From Source to Trap: AAPG Memoir 60, p
The critical moment is the time of source-rock maturation
and of migration of petroleum into its primary trap.
LBR

22. University of Georgia Department of Geology GEOL 4320/6320 Petroleum Geology
Mag & Dow Ex

23. University of Georgia Department of Geology GEOL 4320/6320 Petroleum Geology

24. University of Georgia Department of Geology GEOL 4320/6320 Petroleum Geology

25. University of Georgia Department of Geology GEOL 4320/6320 Petroleum Geology

26. University of Georgia Department of Geology GEOL 4320/6320 Petroleum Geology
PGSG PS

27. University of Georgia Department of Geology GEOL 4320/6320 Petroleum Geology

28. Arthur & Schlanger

29. University of Georgia Department of Geology GEOL 4320/6320 Petroleum Geology

30. University of Georgia Department of Geology GEOL 4320/6320 Petroleum Geology

31. University of Georgia Department of Geology GEOL 4320/6320 Petroleum Geology

32. University of Georgia Department of Geology GEOL 4320/6320 Petroleum Geology

33. University of Georgia Department of Geology GEOL 4320/6320 Petroleum Geology

34. University of Georgia Department of Geology GEOL 4320/6320 Petroleum Geology

35. University of Georgia Department of Geology GEOL 4320/6320 Petroleum Geology

36. University of Georgia Department of Geology GEOL 4320/6320 Petroleum Geology

37. University of Georgia Department of Geology GEOL 4320/6320 Petroleum Geology

38. University of Georgia Department of Geology GEOL 4320/6320 Petroleum Geology

39. University of Georgia Department of Geology GEOL 4320/6320 Petroleum Geology
Gluyas & Swarbrick 2004

40. University of Georgia Department of Geology GEOL 4320/6320 Petroleum Geology

41. University of Georgia Department of Geology GEOL 4320/6320 Petroleum Geology

42. University of Georgia Department of Geology GEOL 4320/6320 Petroleum Geology

43. University of Georgia Department of Geology GEOL 4320/6320 Petroleum Geology

44. University of Georgia Department of Geology GEOL 4320/6320 Petroleum Geology

45. University of Georgia Department of Geology GEOL 4320/6320 Petroleum Geology

46. University of Georgia Department of Geology GEOL 4320/6320 Petroleum Geology

47. University of Georgia Department of Geology GEOL 4320/6320 Petroleum Geology

48. Selley p. 207 (uniform geothermal gradient) G&S page 75 & 77
University of Georgia Department of Geology GEOL 4320/6320 Petroleum Geology
Selley p. 207 (uniform geothermal gradient)
G&S page 75 & 77
Selley 1998

49. University of Georgia Department of Geology GEOL 4320/6320 Petroleum Geology

50. University of Georgia Department of Geology GEOL 4320/6320 Petroleum Geology
Gluyas &
Swarbrick 2004

51. University of Georgia Department of Geology GEOL 4320/6320 Petroleum Geology

52. University of Georgia Department of Geology GEOL 4320/6320 Petroleum Geology
Thermal Cond

53. University of Georgia Department of Geology GEOL 4320/6320 Petroleum Geology
Thermal Cond

54. University of Georgia Department of Geology GEOL 4320/6320 Petroleum Geology

55. PGSG PS con

57. PS ex
University of Georgia Department of Geology GEOL 4320/6320 Petroleum Geology
Reef & talus present vs. not present updip from source rocks;
res & migrn path present or not (could be opposite side of mirror-image basin)
one side with no subsidence and thus no maturation
one side with no source rock.
Thrusting moves reservoir over younger source rock in foot wall;
potential source in hanging wall never matures.
Simple source-migrn-res-seal system deposited but leaks updip to seap; fault and/or salt dome (that forms downdip from growth fault) provide traps.
Deposition of source over half of sloping deposurface; folding, erosion, and deposition make unconformity trap, but only one side has source beneath.
In sequential normal fault block system where source rock covered only half of basin, some blocks have no source rock, and some blocks have no fault seal.
Non-vertical strike-slip fault moves anticlinal traps past lacustrine source rocks - earliest gets no charge, later oil, and even later gas.
Meandering channel sand is in stratum that is tilted and then faulted; fault provides migration path to meanders updip from fault but not down.

58. University of Georgia Department of Geology GEOL 4320/6320 Petroleum Geology
Sources
refs
North 1980
Asquith and Krygowski 2004
Rigzone
Assaad 2008
Schlumberger Log Interpretation P&I
AAPG Basic Well Log Analysis course notes
Schlumberger Oilfielld Glossary
Baker-Hughes Atlas of Log Responses
Selley 1978, Porosity gradients in North Sea oil-bearing sandstones: Jo. Geol. Soc. London v. 135,
Bjørlykke 2010
Conaway 1999
Selley 1998
Crain’s Petrophysical Handbook
Glover’s Petrophysique
Shell Petroleum Handbook (1983)
Gluyas & Swarbrick 2004
Shepherd 2009
Jonathan B. Martin UF class notes
Tissot & Welte (1984)
Wikipedia

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