The Brief Exploration History and Petroleum Geology of the - - PowerPoint PPT Presentation

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The Brief Exploration History and Petroleum Geology of the Mergui-North Sumatra Basin Thailand Mergui-North Sumatra Basin, Thailand By: Tananchai Mahattanachai DMF, Thailand, EPPM-CCOP, 9-10 October 2008 Contents of Presentation Contents of

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SLIDE 1

The Brief Exploration History and Petroleum Geology

  • f the

Mergui-North Sumatra Basin Thailand Mergui-North Sumatra Basin, Thailand

By: Tananchai Mahattanachai

DMF, Thailand, EPPM-CCOP, 9-10 October 2008

slide-2
SLIDE 2

Contents of Presentation Contents of Presentation

1 Exploration History

  • 1. Exploration History
  • 2. General Geology & Hydrocarbon Potential

gy y

  • 3. Current Activities
  • 4. Challenges
  • 5. Conclusion

DMF, Thailand, EPPM-CCOP, 9-10 October 2008

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SLIDE 3

Location Map of the Study Area Location Map of the Study Area

20

  • Source: DMF, Thailand, 2005
  • ,

,

DMF, Thailand, EPPM-CCOP, 9-10 October 2008

120

  • 100
  • Study Area
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SLIDE 4

Seafloor Geometry

DMF, Thailand, EPPM-CCOP, 9-10 October 2008

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SLIDE 5

Seismic Surveys in the Andaman Sea

Exploration History

Operator Block Duration 2D (km) Amoco W2 1974 452.00 DMR Andaman Sea 28 Apr-23 May 1995 3,298.00 ESSO W9 1974 1975 11 785 00 ESSO W9 1974-1975 11,785.00 Kerr-McGee W7/38 19 Apr - 10 May 1998 3,875.50 9-19 Feb 1999 1,332.30 Oceanic W7 1974 2,097.00 Pan Ocean W3,W4 1970, 1972 1,390.00 Placid Oil W8 1985 834.00 Union Oil W8 1973 7,163.00 29 Nov 1996-11 Feb Seismic Data The seismic data consist of more Unocal W8/38, W9/38 29 Nov 1996 11 Feb 1997 11,737.00 Weeks W1 1973 910.00 Shell T t l 44 873 80 than 1,000 seismic lines, with total length of about 45,000 km. covering the area of Block W7/38, W9/38 and A4/43 (W8/38). Total 44,873.80

Magnetic Survey in the Andaman Sea

Kerr- McGee W7/38 1998 3,820.40 DMF, Thailand, EPPM-CCOP, 9-10 October 2008

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SLIDE 6

WELL NAME BLOCK SPUD DATE RELEASE DATE RESULT

Exploration History

OPERATOR ESSO W9-A-1 W9 15-Dec-75 01-Mar-76 DRY ESSO W9-B-1 W9 04-Mar-76 22-Mar-76 GAS&OIL SHOWS ESSO W9-C-1 W9 01-Jun-76 01-Sep-76 DRY ESSO W9-D-1 W9 03-Aug-76 02-Sep-76 DRY ESSO W9-E-1 W9 05-Sep-76 13-Nov-76 DRY? UNOCAL TRANG-1 W8 11-Mar-76 28-May-76 GAS&OIL SHOWS UNOCAL TRANG 1 W8 11 Mar 76 28 May 76 GAS&OIL SHOWS UNOCAL TAI-1 W8 28-May-76 28-Jun-76 DRY UNOCAL PHANGHA-1 W8 30-Jun-76 13-Jul-76 DRY UNOCAL MERGUI-1 W8 16-Jul-76 02-Sep-76 OIL SHOWS UNOCAL PAYANG-1 W8 04-Sep-76 17-Sep-76 DRY UNOCAL SURIN-1 W8 20-Sep-76 02-Oct-76 DRY UNOCAL THALANG-1 W9/38 11-Oct-97 29-Oct-97 DRY UNOCAL KANTANG-1 W8/38 25-Oct-97 05-Nov-97 DRY / UNOCAL KRA BURI-1 W9/38 06-Nov-97 23-Nov-97 DRY UNOCAL SI KAO-1 W8/38 05-Nov-97 03-Dec-97 DRY UNOCAL KATHU-1 W8/38 06-Dec-97 10-Dec-97 DRY PLACID YA A W8 20 S 76 20 O 76 GAS SHOWS DMF, Thailand, EPPM-CCOP, 9-10 October 2008 PLACID YALA-1 W8 20-Sep-76 20-Oct-76 GAS SHOWS PLACID RANOT-1 W8 28-Jan8-7 18-Feb-87 DRY KERR-McGEE MANORA-1 W7/38 22-Feb-00 13-Mar-00 DRY

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SLIDE 7

Exploration History

Manora-1 Payang-1 Surin-1 W9 D 1 Trang-1 Phangha-1 Mergui- 1 Tai-1 W9-B-1 W9-A-1 W9-D-1 Thalang-1 Kantang-1 Yala-1 Kra Buri-1 Kathu-1 W9-C-1 Ranot-1 W9-E-1 Sikao-1

DMF, Thailand, EPPM-CCOP, 9-10 October 2008

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SLIDE 8

Contents of Presentation Contents of Presentation

1 Exploration History

  • 1. Exploration History
  • 2. General Geology & Hydrocarbon Potential

gy y

  • 3. Current Activities
  • 4. Challenges
  • 5. Conclusion

DMF, Thailand, EPPM-CCOP, 9-10 October 2008

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SLIDE 9

Basin Architecture

N

DMF, Thailand, EPPM-CCOP, 9-10 October 2008

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SLIDE 10

Relative Changes of

Stratigraphic Correlation of the Mergui and N-Sumatra Basin

MERGUI

AGE

Relative Changes of sea level

(EXXON 1979)

present sea level

+

  • Pleistocene

Holocene

NORTH SUMATRA BASIN

MERGUI BASIN

MERGUI

BEICIP-FRANLAB 1996

Pliocene

Pleistocene

JULU RAYEU SEURULA

TAKUA PA

E M L

TAKUA PA

e P KEUTAPANG BAONG

THALANG

L

THALANG

Miocene BAONG PEUTU

ARUN BELUMAI

TRANG

TAI

M

YANG

NG

ANG

TRANG

cene BAMPO

KANTANG

TAI

YALA

E M L

PAY U L

TAI PAYAN

KANTA

M DMF, Thailand, EPPM-CCOP, 9-10 October 2008

major unconformity minor unconformity

Oligoc

PARAPAT

E M

L

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SLIDE 11

Plate Motions and Simplified Structural Framework Plate Motions and Simplified Structural Framework

  • f Cenozoic Basins in the Gulf of Thailand and the Andaman Sea
  • f Cenozoic Basins in the Gulf of Thailand and the Andaman Sea

East Andaman FZ East Andaman FZ

South China

90o 95o 100o 105o

Legend Legend

Ranong FZ Ranong FZ Sumatran FS Sumatran FS Sagiang FZ Sagiang FZ

Sea

15o 15o

Bangkok Bangkok

Mergui FZ Mergui FZ Ranong FZ Ranong FZ

Andaman Basin Andaman Basin

Khorat Plateau Khorat Plateau

10o 10o

Gulf Gulf

  • f
  • f

Thailand Thailand

Mergui Mergui -

  • North Sumatra

North Sumatra Basin Basin

Study Area

Indian Oceanic Plate Indian Oceanic Plate 5o 5o

Thrust Spreading N l F l

Thailand Thailand

Study Area

Indian Oceanic Plate Indian Oceanic Plate Sunda Continent Sunda Continent Plate Motion Plate Motion Offshore area Offshore area

100 200km

N

Normal Fault Strik-Slip Fault Lineament

Mergui Basin

DMF, Thailand, EPPM-CCOP, 9-10 October 2008 Plate Motion Plate Motion 90o 95o 100o 105o

(Modified after Polachan, (Modified after Polachan,1988 1988) )

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SLIDE 12

Physiographic Map of the Mergui Basin, Andaman Sea Physiographic Map of the Mergui Basin, Andaman Sea

97° 99°

W7 7/ /38 38 W8 8/ /38 38 W9 9/ /38 38

8° MALACCA SHELF

= High Area = Low Area

DMF, Thailand, EPPM-CCOP, 9-10 October 2008

Source: Unocal Andaman (Thailand), Polachan 1988, and DMR’s Petroleum Concession Map offshore Thailand, 2000

MALACCA SHELF 6° 97° 99°

= Concession Block

  • f Study Area
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SLIDE 13

Seismic Vertical Sections across the Northern, the Central, and the Southern areas.

A

W E

a)

Mergui FZ Mergui FZ

B

A

Central High Mergui Shelf Mergui Ridge

Isochron Map Top Oligocene-Basement

N

W E

b)

Mergui Shelf Mergui Ridge Central High

Eastern Mergui Sub-basin Western Mergui Sub-basin

Top Oligocene Basement

NW SE

c)

B

Mergui Shelf Ranong Ridge R F l Central High SIMF SIMF1 SIMF SIMF2 2 SIMF SIMF1 1_ _5 5 UMU UMU Seabed Seabed Top Upper Miocene Top Upper Miocene

DMF, Thailand, EPPM-CCOP, 9-10 October 2008

C

Ranong Fault SIMF SIMF1 Seismic Basement Seismic Basement

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SLIDE 14

Petroleum Source Rocks Petroleum Source Rocks

Depth vs. RO

0.5 1 1.5 2 RO 2000

OI vs. HI

450 500

Type I

4000

250 300 350 400 HI Thalang-1 Ranot-1 Manora-1 Kantang-1

Type II

6000 Depth Thalang Kantang Kra Buri

100 150 200 Kantang 1 Kra Buri-1 Yala-1

Type III

8000 10000 DMF, Thailand, EPPM-CCOP, 9-10 October 2008

50 100 200 300 400 500 600 OI

12000

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SLIDE 15

Conceptual Play Types in the Mergui Basin Conceptual Play Types in the Mergui Basin

E W

4 7 7 8 2 3 7 6 8 9

2 ,

5 1 2 ,

, St t l T Stratigraphic Traps No scale Structural Traps 1) Drape over Basement High of Lower Oligocene Deltaic sand 2) Roll-over of Upper Oligocene sand 3) Crest of block of Oligocene sand 4) Drag fold of Lower Miocene sand Stratigraphic Traps 5) Oligocene Basin Floor Fan 6) Pinch-out of Lower Oligocene Deltaic sand 7) Lower Miocene Carbonate Buildups 8) Mid-fan Turbidite of Lower Miocene sand

DMF, Thailand, EPPM-CCOP, 9-10 October 2008

g 9) Miocene Conglomerate reef

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SLIDE 16

Petroleum Play Type Petroleum Play Type

Angular unconformity

DMF, Thailand, EPPM-CCOP, 9-10 October 2008

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SLIDE 17

Tertiary Isochorn Map of the Mergui Basin Tertiary Isochorn Map of the Mergui Basin

DMF, Thailand, EPPM-CCOP, 9-10 October 2008

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SLIDE 18

Contents of Presentation Contents of Presentation

1 Introduction and Exploration History

  • 1. Introduction and Exploration History
  • 2. General Geology & Hydrocarbon Potential

gy y

  • 3. Current Activities
  • 4. Challenges
  • 5. Conclusion

DMF, Thailand, EPPM-CCOP, 9-10 October 2008

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SLIDE 19

Exploration Activities Block A Exploration Activities Block A4 4, A , A5 5 & A & A6 6/ /48 48

Block Block Area (Km2) Area (Km2)

  • Acquiring

Acquiring 2 2D Seismic D Seismic G&G t d i G&G t d i

A 4/48 20,280 A 5/48 25,270 A 6/48 23,270

  • G&G studying

G&G studying

  • Prospect area ranking

Prospect area ranking

/ ,

A 4/48 A 5/48 A 6/48

DMF, Thailand, EPPM-CCOP, 9-10 October 2008

  • Feasibility Studying

Feasibility Studying

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SLIDE 20

Physiographic Map of the Mergui Basin, Andaman Sea Physiographic Map of the Mergui Basin, Andaman Sea

97° 99°

W7 7/ /38 38 W8 8/ /38 38 W9 9/ /38 38

8°

?

MALACCA SHELF

= High Area = Low Area

?

DMF, Thailand, EPPM-CCOP, 9-10 October 2008

Source: Unocal Andaman (Thailand), Polachan 1988, and DMR’s Petroleum Concession Map offshore Thailand, 2000

MALACCA SHELF 6° 97° 99°

= Concession Block

  • f Study Area
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SLIDE 21

Challenges Challenges

  • 1. Quantitative Petroleum potential assessment
  • 1. Quantitative Petroleum potential assessment
  • 2. Additional Resource in the north
  • 3. Strengthen academic connection among geo-scientists
  • 4. New exploration technology in deep water

and New Oil Era and New Oil Era

DMF, Thailand, EPPM-CCOP, 9-10 October 2008

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SLIDE 22

Conclusions Conclusions

  • 1. Reviewing of exploration history indicates

petroleum potential in this area 2 Outstanding petroleum reservoir was noticed by

  • 2. Outstanding petroleum reservoir was noticed by

amount of sedimentary supply 3 P l h i f i d

  • 3. Petroleum charging from source to traps is expected

and needed to be carried on the study

  • 4. Challenging in petroleum field development

DMF, Thailand, EPPM-CCOP, 9-10 October 2008