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TGS | SUNDALAND MARGIN FEBRUARY 2013 TGS | SUNDALAND MARGIN FEBRUARY 2013

SUNDALAND MARGINMULTI-CLIENT 2D SEISMIC LIBRARY

TGS maintains the industry’s largest multi-client data library in Indonesia. TGS’ interest in the Sundaland Margin area originated from the first data of the IDD survey which identified a potential clastic dominated Mesozoic section overlain by Lower Miocene carbonates and a thick Pliocene section in the Meulaboh Basin. Primary reservoir rocks were interpreted to occur in the Early Miocene and Early Pliocene limestones of the basin. The conclusion that all the elements of a potentially successful petroleum system were apparent, with gas discoveries at Meulaboh-1 and Keudepasi-1, in Northern Sumatra.

Since that first investigation in 2008, TGS has acquired approximately 35,000 km of 2D multi-client seismic data along the Sundaland Margin. This follows the southern coast of Sumatra and encompasses the Meulaboh, Nias, Mentawai , Bengkulu and Sunda Basins. In addition to the 2D seismic data which was acquired from 2008 until January 2011, over 50,000 km2 of multibeam data was recorded and 127 piston cores were taken.

AUS Tel: +61 8 9480 0000Email: info@tgs.com

For more information, contact TGS at:

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TGS MC2D Seismic

TGS Multibeam Survey

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Location Diagram

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© 2013 TGS-NOPEC GEOPHYSICAL COMPANY ASA. ALL RIGHTS RESERVED.WWW.TGS.COM

TGS | SUNDALAND MARGIN FEBRUARY 2013

Bengkulu Basin

Northwest Sumatra Multibeam

SUNDALAND MARGIN

NW Sumatra 08 (SF08) 1,464 2,0626 6,323 4 51 111 Northwest Sumatra 2009 (SF09) 5,353 Northwest Sumatra Infill (SNW10) 1,269 North Sumatra ‘Nias” (SNA10) 1,870 South Sumatra (SM09) 6,656 South Sumatra Infill (SMi10) 2,792 Sunda (SU08) 3,083 2,9619 7,792 3 76 198 South Java Recon 2009 (SJR09) 1,901 South Java Recon 2010 (SJR10) 4,016 South Java Infill 2010 (SJi10) 2,722 Sumatra Reprocessing 2010 (SMR10) 3,987

2D Seismic km

Multibeam km2

Grav/Mag

HeatFlow Cores Geochem

Mentawai Basin

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Miocene Reef Development

F F’

Sunda Basin

G G’Meulaboh Basin Miocene Reefs

B B’

Meulaboh Basin Structure and Mesozoic Section

A A’

Nias Basin Structure and Reefs

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TGS MC2D Seismic Seismic Section LinesTGS Multibeam Survey

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Location Diagram

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