TGS GPS- Basin Temperature Models

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© 2015 TGS-NOPEC Geophysical Company ASA. All rights reserved.

WillistonBasin

DJBasin

MississippiLime Play

MidlandBasin

DelawareBasin

Eagle FordTrend

Marcellus/UticaPlays

HaynesvillePlay

GreatBasin

PowderRiverBasin

IllinoisBasin

LasAnimas

Arch

Anadarko

Tuscaloosa Trend

MichiganBasin

CentralBasin

Platform

AlbertaBritishColumbia Manitoba

Nunavut

Saskatchewan

NewBrunswick

NovaScotia

Newfoundlandand Labrador

PrinceEdwardIsland

Quebec

Ontario

Content may not reflect National Geographic's current map policy. Sources: National Geographic, Esri, DeLorme, HERE, UNEP-WCMC, USGS, NASA, ESA, METI, NRCAN, GEBCO, NOAA, increment P Corp.

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Basin Temperature Models TGS has developed a new methodology for generating accurate Basin Temperature Models to support the exploration for shale gas. The workflow to develop the model consists of:

� Over 10,000 logs are indexed for bottom-hole temperature (BHT) values for a basin

� A lithostratigraphic framework is generated for the basin

� BHT values are spatially distributed within each litho-stratigraphic interval

� A line is drawn tangent to the maximum offset BHT values for each interval

� A function is applied to adjust the slope of the interval geothermal gradient based on depth and lithology

� The temperature volume is constructed by stacking the interval geothermal gradient layers for the basin

Models have been built for the Delaware Basin, the Midland Basins, the Powder River Basin, Eagle Ford area, Utica area, Las Animas Arch area, Mississippi Lime Play and Tuscaloosa Marine Shale. TGS will continue to develop models for several other areas, trends and basins (onshore US and Canada) in the next couple of years.

Deliverables A new temperature model can be built in approximately 12 weeks and includes the following:

� Indexed BHT, mud weight and elevation data for approximately 10,000 logs

� A consistent set of litho-stratigraphic picks for approximately 2,000 wells

� Depth temperature grids for each litho-stratigraphic surface

� Temperature volumes for the basin

� Reports

Models can be licensed under an addendum to clients via the LOG-LINE Plus!® Well Log Data Operating Agreement.

Interpretation Products

US Tel: +1 713 860 2100Email: gps-sales@tgs.com

UK Tel: +44 (0) 208 339 4200Email: gps-sales@tgs.com

For more information, contact TGS at:

TGS-NOPEC has used its best efforts to produce this map free of errors, utilization of same shall be at the sole risk of the user.TGS-NOPEC assumes no liability or responsibility for reliance placed thereon.

U N I T E D S T A T E SP I C K E D F M T O P S

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Miles

N:\Public\GIS\Arc Map Documents\Well Data\_Basemaps\Product_Basemaps\BTM_and_FormationTops\USA_BTM_Tops_Horizons.mxd January 23, 2015

Projection: NAD 1927 StatePlane Louisiana South FIPS 1702

Tops Available

Works in Progress

BTM Areas with BHT Wells Available

TGS 2D Onshore Seismic Surveys

TGS 3D Onshore Seismic Surveys (In Progress)

TGS 3D Onshore Seismic Surveys

Structure Contours from Key Formation Tops