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Sequence Stratigraphic Analysis – Mr. Robert Wong Hin ... - CCOP

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SEQUENCE STRATIGRAPHIC<br />

ANALYSIS<br />

<strong>Robert</strong> <strong>Wong</strong> <strong>Hin</strong> Fatt, 2010<br />

<strong>CCOP</strong> Workshop<br />

1<br />

Geoscience Year 2004


3 dimensional<br />

MFS<br />

IVF<br />

Slope Fan<br />

Basin Floor Fan<br />

2<br />

Geoscience Year 2004


Third order sequence described as Slug Model - 2 dimensional<br />

3<br />

Geoscience Year 2004


Slug Model illustrated by logs<br />

10s to 100s km<br />

Just look at the<br />

Shape of the logs.<br />

They are so different!<br />

4<br />

Geoscience Year 2004


<strong>Sequence</strong> biostratrigraphy in a third-order sequence<br />

Fossil abundance<br />

And diversity<br />

At condense<br />

section<br />

PRAM/PMU<br />

5<br />

Geoscience Year 2004


Use of biofacies in <strong>Sequence</strong> stratigraphy<br />

FAUNAL ABUNDANCE / DIVERSITY<br />

D<br />

E<br />

P<br />

Condense section/MFS<br />

<strong>Sequence</strong> boundary<br />

T<br />

H<br />

6<br />

Geoscience Year 2004


Correlation of Biostrat. , Well and Seismic Data<br />

CS<br />

Top F<br />

SB<br />

SB<br />

PRAM/PMU<br />

7<br />

Geoscience Year 2004


Part 1<br />

Seismic Facies Interpretation<br />

Within <strong>Sequence</strong> Stratigaphic Framework<br />

8<br />

Geoscience Year 2004<br />

<strong>Robert</strong> <strong>Wong</strong> <strong>Hin</strong> Fatt, 2010


Athird-order sequence model showing systems tracts<br />

•HIGHSTAND<br />

•SYSTEMS TRACT<br />

•sequence boundary<br />

•maximum flooding surface<br />

•TRANSGRESSIVE<br />

•SYSTEMS TRACT<br />

•incised valley<br />

•sequence boundary<br />

•Transgressive Surface<br />

•LOWSTAND<br />

•SYSTEM TRACT<br />

•prograding wedge<br />

•slope fan<br />

•basin floor fan<br />

9<br />

Geoscience Year 2004


Seismic facies relating to systems tracts<br />

10<br />

Geoscience Year 2004


Remember! You must know where you are within<br />

the sequence stratigraphic framework.<br />

11<br />

Geoscience Year 2004


SEISMIC FACIES ANALYSIS<br />

Seismic facies definition<br />

• Seismic reflections terminations<br />

• Seismic reflections characteristics<br />

• Seismic facies configurations<br />

12<br />

Geoscience Year 2004


SEISMIC FACIES ANALYSIS<br />

Definition:<br />

The description and geological<br />

interpretation of an association of seismic<br />

reflection parameters including:<br />

• Amplitude<br />

• Continuity<br />

• Frequency<br />

• Phase<br />

• Geometric Configurations<br />

13<br />

Geoscience Year 2004


English is compulsory<br />

Rounded<br />

Bounded<br />

Mounded<br />

Grounded<br />

Hounded<br />

Pounded<br />

14<br />

Geoscience Year 2004


English is compulsory<br />

Rounded<br />

Bounded<br />

Mounded<br />

Grounded<br />

Hounded<br />

Pounded<br />

15<br />

Geoscience Year 2004


English is compulsory<br />

Consistent<br />

Divergent<br />

Convergent<br />

Concurrent<br />

Concordant<br />

Redundent<br />

16<br />

Geoscience Year 2004


English is compulsory<br />

Consistent<br />

Divergent<br />

Convergent<br />

Concurrent<br />

Concordant<br />

Redundant<br />

17<br />

Geoscience Year 2004


English is compulsory<br />

Sentimental<br />

Cylindrical<br />

Symbolical<br />

Sigmoidal<br />

Symmetrical<br />

Sinister<br />

18<br />

Geoscience Year 2004


English is compulsory<br />

Sentimental<br />

Cylindrical<br />

Symbolical<br />

Sigmoidal<br />

Symmetrical<br />

Sinister<br />

19<br />

Geoscience Year 2004


English is compulsory<br />

Oblong<br />

Prolong<br />

oo Along<br />

Oblique<br />

Obscure<br />

Obese<br />

Obvious<br />

20<br />

Geoscience Year 2004


English is compulsory<br />

Oblong<br />

Prolong<br />

Along<br />

Oblique<br />

Obscure<br />

Obese<br />

Obvious<br />

21<br />

Geoscience Year 2004


English is compulsory<br />

Curvy<br />

Hummocky<br />

Wavy<br />

Shaky<br />

Funny<br />

Tiny<br />

wormy<br />

22<br />

Geoscience Year 2004


English is compulsory<br />

Curvy<br />

Hummocky<br />

Wavy<br />

Shaky<br />

Funny<br />

Tiny<br />

wormy<br />

23<br />

Geoscience Year 2004


Seismic facies relating to systems tracts<br />

Parallel, continuous<br />

Divergent<br />

Sigmoidal<br />

Mounded<br />

24<br />

Geoscience Year 2004


SEISMIC FACIES ANALYSIS<br />

SEISMIC REFLECTION CHARACTERISTICS<br />

Feature<br />

Geologic Interpretation<br />

Amplitude<br />

Continuity<br />

Frequency<br />

Phase Change<br />

Geometry<br />

Flat Spot, Tilted Surface<br />

Vertical stratal discontinuity, bed<br />

spacing, fluid content<br />

Lateral stratal continuity,<br />

Depositional processes, geologic<br />

time line<br />

Bed thickness, fluid content<br />

Fluid content, facies change<br />

Depositional environment<br />

Fluid Contact (GOC, GWC, OWC)<br />

25<br />

Geoscience Year 2004


Obvious flat spot and tilted surface<br />

Flat spot<br />

Tilted surface<br />

26<br />

Geoscience Year 2004


A-1<br />

Can you point to the oil bearing<br />

channel sand which was<br />

encountered by the well<br />

27<br />

Geoscience Year 2004


A-1<br />

Channel Sand<br />

28<br />

Geoscience Year 2004


A-1<br />

OWC<br />

How do you know<br />

29<br />

Geoscience Year 2004


A-1<br />

OWC<br />

Simple. Change In colours!<br />

30<br />

Geoscience Year 2004


WIRELINE LOG OF A-1 THROUGH THE H<br />

CHANNEL SAND<br />

OWC seen<br />

on seismic<br />

31<br />

Geoscience Year 2004


32<br />

Geoscience Year 2004


How would you describe the seismic facies<br />

33<br />

Geoscience Year 2004


34<br />

Geoscience Year 2004


Can you describe the seismic facies<br />

SW<br />

deltas and fluvial facies<br />

turbidites<br />

deep lake<br />

alluvial fan<br />

shallow lake<br />

Basement<br />

35<br />

Geoscience Year 2004


Seismic facies interpretation-<br />

Can you continue the interpretation<br />

Line 76R504<br />

36<br />

Geoscience Year 2004<br />

1 km


37<br />

Geoscience Year 2004


Seismic facies interpretation<br />

SB 3.2 and/or<br />

SRU<br />

SB 3.3<br />

Saracan Bank scar<br />

SB 3.1<br />

SB2.6.2<br />

Chaotic facies<br />

MFS TB2.5<br />

Regional TST<br />

SB 2.4<br />

Line 76R504<br />

38<br />

Geoscience Year 2004<br />

1 km


Uninterpreted seismic cross-section: East Sabah<br />

SW<br />

NE<br />

39<br />

Geoscience Year 2004


SW<br />

East Sabah Regional Line: Dip Line<br />

NE<br />

Mounded feature-Carbonate<br />

Gently mounded feature-<br />

Turbidites<br />

40<br />

Geoscience Year 2004


Seismic <strong>Sequence</strong> Stratigraphy<br />

SW<br />

Mounded features<br />

Carbonates<br />

Turbidites<br />

NE<br />

Gently mounded features<br />

41<br />

Geoscience Year 2004


Seismic facies/paleofacies mapping<br />

42<br />

Geoscience Year 2004


Reservoir Characterization - Carbonate Model<br />

SW<br />

43<br />

Geoscience Year 2004


Reservoir Characterization - Turbidite Model<br />

44<br />

Geoscience Year 2004


Part 2<br />

<strong>Sequence</strong> <strong>Analysis</strong> based on Log Character<br />

45<br />

Geoscience Year 2004


Third order sequence described as Slug Model<br />

46<br />

Geoscience Year 2004


Slug Model illustrated by logs-<br />

Indicating Vertical and Horizontal Variability<br />

Just look at the<br />

Shape of the logs.<br />

They are so different!<br />

47<br />

Geoscience Year 2004


An English Lesson On Log Description<br />

What do we call this log shape<br />

Bull<br />

Ball<br />

Bell<br />

Bear<br />

Bird<br />

Blog<br />

48<br />

Geoscience Year 2004


An English Lesson On Log Description<br />

What do we call this log shape<br />

Bull<br />

Ball<br />

Bell<br />

Bear<br />

Bird<br />

Blog<br />

49<br />

Geoscience Year 2004


An English Lesson On Log Description<br />

What do we call this log shape<br />

Flurry<br />

Funny<br />

Funnel<br />

Funky<br />

Fuzzy<br />

Furry<br />

50<br />

Geoscience Year 2004


An English Lesson On Log Description<br />

What do we call this log shape<br />

Flurry<br />

Funny<br />

Funnel<br />

Funky<br />

Fuzzy<br />

Furry<br />

51<br />

Geoscience Year 2004


An English Lesson On Log Description<br />

What do we call this log shape<br />

Bulky<br />

Blocky<br />

Belly<br />

Baloney<br />

Baby<br />

Body<br />

52<br />

Geoscience Year 2004


An English Lesson On Log Description<br />

What do we call this log shape<br />

Bulky<br />

Blocky<br />

Belly<br />

Baloney<br />

Baby<br />

Body<br />

53<br />

Geoscience Year 2004


An English Lesson On Log Description<br />

What do we call this log shape<br />

Ecstatic<br />

Eccentric<br />

Eclectic<br />

Erratic<br />

Eustatic<br />

Electric<br />

54<br />

Geoscience Year 2004


An English Lesson On Log Description<br />

What do we call this log shape<br />

Ecstatic<br />

Eccentric<br />

Eclectic<br />

Erratic<br />

Eustatic<br />

Electric<br />

55<br />

Geoscience Year 2004


Inferred Depositional Environment From Logs<br />

Fluvial/Braided l/ d<br />

Stream<br />

Meandering Channel Sands/Barrier Bars<br />

Overbank/Levee/Crevasse Splay<br />

River Mouth Bar/Beach Sands<br />

Shallow Marine Sands/Deltaic Sands<br />

Deep Marine Sands/Basin Floor Sands<br />

Levee Channel Complex/Slope Fans<br />

56<br />

Geoscience Year 2004


Inferred Depositional Environment From Logs<br />

Fluvial/Braided l/ d<br />

Stream<br />

Meandering Channel Sands/Barrier Bars<br />

Overbank/Levee/Crevasse Splay<br />

River Mouth Bar/Beach Sands<br />

Shallow Marine Sands/Deltaic Sands<br />

Deep Marine Sands/Basin Floor Sands<br />

Levee Channel Complex/Slope Fans<br />

57<br />

Geoscience Year 2004


Depositional Environment From Logs<br />

Fluvial/Braided l/ d<br />

Stream<br />

Meandering Channel Sands/Barrier Bars<br />

Overbank/Levee/Crevasse Splay<br />

River Mouth Bar/Beach Sands<br />

Shallow Marine Sands/Deltaic Sands<br />

Deep Marine Sands/Basin Floor Sands<br />

Levee Channel Complex/Slope Fans<br />

58<br />

Geoscience Year 2004


Depositional Environment From Logs<br />

Fluvial/Braided l/ d<br />

Stream<br />

Meandering Channel Sands/Barrier Bars<br />

Overbank/Levee/Crevasse Splay<br />

River Mouth Bar/Beach Sands<br />

Shallow Marine Sands/Deltaic Sands<br />

Deep Marine Sands/Basin Floor Sands<br />

Levee Channel Complex/Slope Fans<br />

59<br />

Geoscience Year 2004


Depositional Environment From Logs<br />

Fluvial/Braided l/ d<br />

Stream<br />

Meandering Channel Sands/Barrier Bars<br />

Overbank/Levee/Crevasse Splay<br />

River Mouth Bar/Beach Sands<br />

Shallow Marine Sands/Deltaic Sands<br />

Deep Marine Sands/Basin Floor Sands<br />

Levee Channel Complex/Slope Fans<br />

60<br />

Geoscience Year 2004


Depositional Environment From Logs<br />

Fluvial/Braided l/ d<br />

Stream<br />

Meandering Channel Sands/Barrier Bars<br />

Overbank/Levee/Crevasse Splay<br />

River Mouth Bar/Beach Sands<br />

Shallow Marine Sands/Deltaic Sands<br />

Deep Marine Sands/Basin Floor Sands<br />

Levee Channel Complex/Slope Fans<br />

61<br />

Geoscience Year 2004


Depositional Environment From Logs<br />

Fluvial/Braided l/ d<br />

Stream<br />

Meandering Channel Sands/Barrier Bars<br />

Overbank/Levee/Crevasse Splay<br />

River Mouth Bar/Beach Sands<br />

Shallow Marine Sands/Deltaic Sands<br />

Deep Marine Sands/Basin Floor Sands<br />

Levee Channel Complex/Slope Fans<br />

62<br />

Geoscience Year 2004


Depositional Environment From Logs<br />

Fluvial/Braided l/ d<br />

Stream<br />

Meandering Channel Sands/Barrier Bars<br />

Overbank/Levee/Crevasse Splay<br />

River Mouth Bar/Beach Sands<br />

Shallow Marine Sands/Deltaic Sands<br />

Deep Marine Sands/Basin Floor Sands<br />

Levee Channel Complex/Slope Fans<br />

63<br />

Geoscience Year 2004


The Log Can Tell You A Story From Bottom to Top<br />

Coarsening upward<br />

Fining upward<br />

Shallowing Upward<br />

Deepening Upward<br />

No Or Little Change<br />

64<br />

Geoscience Year 2004


The Log Can Tell You A Story From Bottom to Top<br />

Coarsening upward<br />

Fining upward<br />

Shallowing Upward<br />

Deepening Upward<br />

No Or Little Change<br />

65<br />

Geoscience Year 2004


The Log Can Tell You A Story From Bottom to Top<br />

Coarsening upward<br />

Fining upward<br />

Shallowing Upward<br />

Deepening Upward<br />

No Or Little Change<br />

66<br />

Geoscience Year 2004


The Log Can Tell You A Story From Bottom to Top<br />

Coarsening upward<br />

Fining upward<br />

Shallowing Upward<br />

Deepening Upward<br />

No Or Little Change<br />

67<br />

Geoscience Year 2004


The Log Can Tell You A Story From Bottom to Top<br />

Overall coarsening upward<br />

Overall fining upward<br />

Overall shallowing upward<br />

Overall deepening upward<br />

Overall little or no change<br />

68<br />

Geoscience Year 2004


The Log Can Tell You A Story From Bottom to Top<br />

Overall coarsening upward<br />

Overall fining upward<br />

Overall shallowing upward<br />

Overall deepening upward<br />

Overall little or no change<br />

69<br />

Geoscience Year 2004


The Log Can Tell You A Story From Bottom to Top<br />

Overall coarsening upward<br />

Overall fining upward<br />

Overall shallowing upward<br />

Overall deepening upward<br />

Overall little or no change<br />

70<br />

Geoscience Year 2004


The Log Can Tell You A Story From Bottom to Top<br />

Overall coarsening upward<br />

Overall fining upward<br />

Overall shallowing upward<br />

Overall deepening upward<br />

Overall little or no change<br />

71<br />

Geoscience Year 2004


The Log Can Tell You A Story From Bottom to Top<br />

Overall coarsening upward<br />

Overall fining upward<br />

Overall shallowing upward<br />

Overall deepening upward<br />

Overall little or no change<br />

72<br />

Geoscience Year 2004


The Log Can Tell You A Story From Bottom to Top<br />

Overall coarsening upward<br />

Overall fining upward<br />

Overall shallowing upward<br />

Overall deepening upward<br />

Overall little or no change<br />

73<br />

Geoscience Year 2004


The Log Can Tell You A Story From Bottom to Top<br />

How is Max. Flooding Surface defined<br />

Can you mark the MFS<br />

74<br />

Geoscience Year 2004


The Log Can Tell You A Story From Bottom to Top<br />

Bravo!<br />

You got it right!<br />

75<br />

Geoscience Year 2004


Now You Can Interpret The Systems Tracts<br />

HST<br />

MFS<br />

TST<br />

76<br />

Geoscience Year 2004


Now You Can Interpret The Systems Tracts Properly<br />

Increasing abundance<br />

and ddi diversity i to the right<br />

Trend for HST<br />

HST<br />

MFS/CS<br />

TST<br />

Trend for TST<br />

77<br />

Geoscience Year 2004


Slug Model illustrated by logs-<br />

Indicating Vertical and Horizontal Variability<br />

Blocky<br />

Funnel<br />

Bell<br />

Just look at the<br />

Shape of the logs<br />

One more time<br />

Erratic<br />

Blocky<br />

78<br />

Geoscience Year 2004


Log Pattern For Overall Prograding <strong>Sequence</strong>s<br />

Can You show the TSTs and the LSTs with their boundaries<br />

79<br />

Geoscience Year 2004


Log Pattern For Overall Prograding <strong>Sequence</strong>s<br />

Can You show the TSTs and the LSTs<br />

TST<br />

TST<br />

TST<br />

TST<br />

LST<br />

TST<br />

LST<br />

TST<br />

TST<br />

LST<br />

LST<br />

LST<br />

LST<br />

LST<br />

80<br />

Geoscience Year 2004


The Overall Log Character is Related to the<br />

Rate of Deposition Vs Rate of Accommodation<br />

PARASEQUENCE - STACKING PATTERNS IN PARASEQUENCE SETS<br />

Especially in a Marine Environment<br />

PROGRADATIONAL PARASEQUENCE SET (HST)<br />

SCHEMATIC<br />

WELL - LOG<br />

RESPONSE<br />

RATE OF DEPOSITION<br />

RATE OF ACCOMODATION<br />

> 1<br />

Yonger PSQ:<br />

Thicker<br />

More Porous<br />

RETROGRADATIONAL PARASEQUENCE SET (TST)<br />

RATE OF DEPOSITION<br />

RATE OF ACCOMODATION<br />

< 1<br />

AGRADATIONAL PARASEQUENCE SET (SMST)<br />

RATE OF DEPOSITION<br />

RATE OF ACCOMODATION<br />

= 1<br />

COASTAL - PLAIN SANDSTONES<br />

AND MUDSTONES<br />

SHALLOW MARINE SANDSTONES<br />

SHELF MUDSTONES<br />

81<br />

Geoscience Year 2004


If you mis-correlate the sands in HST, it might still be OK<br />

82<br />

Geoscience Year 2004


But if you mis-correlate the sands in TST, it is not OK!<br />

Comparison of (A) chronostratigraphic correlation and (B) lithostratigrapic correlation styles:<br />

retrogradational parasequence set<br />

83<br />

Geoscience Year 2004


<strong>Sequence</strong> stratigraphic interpretation with seismic and well<br />

basinward<br />

SB<br />

Overall<br />

Coarsening<br />

upward<br />

Shale out<br />

SE<br />

NW


A Field Geologist Looking at Outcrop Scale<br />

How does a geologist<br />

Interpret the outcrop<br />

COARSERNING UPWARD PARASEQUENCES MIRI FM, JLN HOSPITAL OUTCROP<br />

85<br />

Geoscience Year 2004


A Geologist integrates outcrop with log<br />

Parasequence Boundary<br />

COARSERNING UPWARD PARASEQUENCES MIRI FM, JLN HOSPITAL OUTCROP<br />

86<br />

Geoscience Year 2004


A Geologist integrates outcrop with log<br />

How then does<br />

a geophysicist<br />

interpret the<br />

outcrop<br />

Parasequence Boundary<br />

COARSERNING UPWARD PARASEQUENCES MIRI FM, JLN HOSPITAL OUTCROP<br />

87<br />

Geoscience Year 2004


A Geophysicist Integrates Outcrop with Seismic<br />

Bed sets (Parasequence)<br />

front<br />

view<br />

PSB<br />

COARSERNING UPWARD PARASEQUENCES MIRI FM, JLN HOSPITAL OUTCROP<br />

88<br />

Geoscience Year 2004


A <strong>Sequence</strong> Stratigrapher integrates outcrops, well and seismic<br />

Bed sets (Parasequence)<br />

front<br />

view<br />

PSB<br />

Parasequence Boundary<br />

COARSERNING UPWARD PARASEQUENCES MIRI FM, JLN HOSPITAL OUTCROP<br />

89<br />

Geoscience Year 2004


A <strong>Sequence</strong> Stratigrapher integrates outcrops, well and seismic<br />

Bed sets (Parasequence)<br />

HST<br />

front<br />

view<br />

PSB<br />

Parasequence Boundary<br />

COARSERNING UPWARD PARASEQUENCES MIRI FM, JLN HOSPITAL OUTCROP<br />

And relates it to the<br />

3 rd order sequence model<br />

90<br />

Geoscience Year 2004


After you have done the sequence stratigraphic<br />

interpretation, you can just relax<br />

91<br />

Geoscience Year 2004


Geoscience Year 2004


BALINGIAN STRATIGRAPHIC SCHEME<br />

•EUSTATIC SEA LEVEL CURVE<br />

• (from Haq et.al)<br />

•SW<br />

•TB<br />

•CYCLE<br />

•WEST<br />

modified<br />

BALINGIAN<br />

sequences<br />

after Barry<br />

•PRESENT<br />

et.al.<br />

•VI-VIIIVIII<br />

•TB3.7<br />

•TB3.5<br />

-TB3.6<br />

•TB3.2<br />

-TB3.4<br />

•V<br />

•TB3.1<br />

•TB2.6<br />

•IV<br />

•TB2.5<br />

•TB2.4<br />

•III<br />

•TB2.3<br />

•TB1.5<br />

•II<br />

–<br />

TB2.2<br />

•I<br />

•C<br />

•R<br />

•C<br />

•R<br />

•S<br />

•S<br />

•EAST<br />

BALINGIAN<br />

•VI<br />

-VII<br />

•NE<br />

•IV-<br />

•I V<br />

II•I<br />

I<br />

•I<br />

•Sedimentary<br />

History<br />

•Major erosion at<br />

•Top Cycle V<br />

•Ancient<br />

coastline<br />

•change to E-W<br />

•Pinnacle reef in<br />

•Extensive<br />

LCP, • Cycle ancient<br />

III at<br />

coastline N-S,<br />

•NE some<br />

Balingian<br />

carbonate<br />

growth at the<br />

NE Balingian<br />

i<br />

•R •S •C •LCP<br />

•COL<br />

•Carbon<br />

ates<br />

Geoscience Year 2004<br />

•HIN-<br />

HMN<br />

•MFS

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