Geochemical de-risking in Arctic Regions: Identifying Hydrocarbon Phase Before Drilling. Finding Petroleum: Exploring the Arctic 11 th October 2011

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1 Geochemical de-risking in Arctic Regions: Identifying Hydrocarbon Phase Before Drilling Finding Petroleum: Exploring the Arctic 11 th October 2011 GORE Surveys Copyright 2011 W. L. Gore & Associates

2 How do you know if a structure is charged before Drilling? If it is charged, is it charged with gas or oil? Amplified Geochemical Imaging SM technology can define Hydrocarbon Phase in Structures Two examples from arctic regions in West Siberia and Northwest Territories

3 GORE Module Patented, passive, sorbent-based Chemically-inert, waterproof, vapor permeable Direct detection of organic compounds Sample integrity protected Engineered sorbents Consistent sampling medium Minimal water vapor uptake Time-integrated sampling Minimize near-surface variability Maximize sensitivity (up to C20) Avoids variables inherent in instantaneous sampling Duplicate samples

4 GORE Surveys - Collection Module Installation & Retrieval Place insertion rod in module Create installation hole Insert module into hole & cover Secure module, mark field location, record GPS data and field notes Sub-sample core Secure sample & Gore modules in sealed jar Onshore & Offshore

5 AMPLIFIED GEOCHEMICAL IMAGING SM Winter Sample Installation & Retrieval

6 GORE Surveys mosule Analysis Lab & QA/QC TD/GC/MS analysis in controlled laboratory Rich mass data set [85 compounds,c 2 thru C 20 ] LAB ANALYSIS Score Canonical-Variates Scores QA/QC Score2 Class Field Sample Instrument Blank Inventory Blank Method Blank Trip Blank Analytical QA/QC blanks Calibration & tuning standards Industry standard instrumentation Clean facility standards & practices 40% samples analyzed are QA/QC Samples ISO guidelines

7 GORE Surveys - Analysis Analytical Compound List by Compound Class: C2 C20 Typical Petroleum Constituents Hydrocarbon number in ( ) Normal Alkanes Iso-alkanes Cyclic Alkanes Aromatics and PAH* Ethane (2) Propane (3) Butane (4) Pentane (5) Hexane (6) Heptane (7) Octane (8) Nonane (9) Decane (10) Undecane (11) Dodecane (12) Tridecane (13) Tetradecane (14) Pentadecane (15) Hexadecane (16) Heptadecane (17) Octadecane (18) 2-Methylbutane (5) 2-Methylpentane (6) 3-Methylpentane (6) 2,4-Dimethylpentane (7) 2-Methylhexane (7) 3-Methylhexane (7) 2,5-Dimethylhexane (8) 3-Methylheptane (8) 2,6-Dimethylheptane (9) Pristane (19) Phytane (20) Cyclopentane (5) Methylcyclopentane (6) Cyclohexane (6) cis-1,3-dimethylcyclopentane (7) trans-1,3-dimethylcyclopentane (7) trans-1,2-dimethylcyclopentane (7) Methylcyclohexane (7) Cycloheptane (7) cis-1,3/1,4-dimethylcyclohexane (8) cis-1,2-dimethylcyclohexane (8) trans-1,3/1,4-dimethylcyclohexane (8) trans-1,2-dimethylcyclohexane (8) Ethylcyclohexane (8) Cyclooctane (8) Propylcyclohexane (9) Byproduct / Alteration and Other Compounds Benzene (6) Toluene (7) Ethylbenzene (8) m,p-xylenes (8) o-xylene (8) Propylbenzene (9) 1-Ethyl-2/3-methylbenzene (9) 1,3,5-Trimethylbenzene (9) 1-Ethyl-4-methylbenzene (9) 1,2,4-Trimethylbenzene (9) Indane (9) Indene (9) Butylbenzene (10) 1,2,4,5-Tetramethylbenzene (10) Naphthalene (10) 2-Methylnaphthalene (11) Acenaphthylene (12) Alkenes Aldehydes Biogenic NSO* and Other Compounds Ethene (2) Propene (3) 1-Butene (4) 1-Pentene (5) 1-Hexene (6) 1-Heptene (7) 1-Octene (8) 1-Nonene (9) 1-Decene (10) 1-Undecene (11) Octanal (8) Nonanal (9) Decanal (10) Copyright 2007 W. L. Gore & Associates alpha-pinene beta-pinene Camphor Caryophyllene Furan 2-Methylfuran Carbon Disulfide Benzofuran Benzothiazole Carbonyl Sulfide Dimethylsulfide Dimethyldisulfide

8 Example from West Siberia Geologic Setting Location - Yarudey Uplift Shuginskaya Anticline Target - Lower-middle Jurassic formation Depth 2,500 to 3,000 meters

9 OPERATION LOCATION Shuginskaya Survey Area

10 Shuginskaya Structure 14 Approximate areal extent 60 km 2 Geochemical Survey Area

11 Survey Design 1 kilometer Spacing Background Model Gas Condensate Model Located 30 Kilometers South of Survey Area

12 Gas Condensate Well Signature Carbonyl Sulfide Ethane Propene Propane 1-Butene Butane 2-Methylbutane 1-Pentene Pentane Cyclopentane 2-Methylpentane 3-Methylpentane Hexane Methylcyclopentane 2,4-Dimethylpentane Cyclohexane 2-Methylhexane 3-Methylhexane cis-1,3-dimethylcyclopentane trans-1,3-dimethylcyclopentane trans-1,2-dimethylcyclopentane Heptane 2,5-Dimethylhexane 3-Methylheptane cis-1,3/1,4-dimethylcyclohexane 1-Octene Octane 1-Nonene Nonane Decane Indane Indene 1-Undecene Undecane Dodecane Naphthalene Tridecane 2-Methylnaphthalene Tetradecane Pentadecane Hexadecane Heptadecane Pristane Octadecane Phytane Compound Mass (ng)

13 Hierarchical Cluster Analysis Oil Range Compounds Background has no Correlation to Compounds Gas Condensate Range Compounds C 2 C 20

14 Hierarchical Cluster Analysis Oil Range Compounds Background has no Correlation to Compounds Gas or Condensate Range Compounds C2 C20

15 Gas Condensate Signature from HCA Carbonyl Sulfide Ethane Propene Propane 1-Butene Butane 1-Pentene Cyclopentane 2-Methylpentane 3-Methylpentane Hexane Methylcyclopentane 2,4-Dimethylpentane Cyclohexane 2-Methylhexane 3-Methylhexane cis-1,3-dimethylcyclopentane trans-1,3-dimethylcyclopentane trans-1,2-dimethylcyclopentane Heptane 2,5-Dimethylhexane 3-Methylheptane cis-1,3/1,4-dimethylcyclohexane 1-Octene Octane 1-Nonene Nonane Decane Indane Indene 1-Undecene Undecane Dodecane Naphthalene Tridecane 2-Methylnaphthalene Tetradecane Pentadecane Hexadecane Heptadecane Pristane Octadecane Phytane 2-Methylbutane Pentane 700 C 2 -C 7 Compounds Mass (ng) Compound

16 Oil Signature from HCA C 10 -C 20 Compounds Carbonyl Sulfide Ethane Propene Propane 1-Butene Butane 2-Methylbutane 1-Pentene Pentane Cyclopentane 2-Methylpentane 3-Methylpentane Hexane Methylcyclopentane 2,4-Dimethylpentane Cyclohexane 2-Methylhexane 3-Methylhexane cis-1,3-dimethylcyclopentane trans-1,3-dimethylcyclopentane trans-1,2-dimethylcyclopentane Heptane 2,5-Dimethylhexane 3-Methylheptane cis-1,3/1,4-dimethylcyclohexane 1-Octene Octane 1-Nonene Nonane Decane Indane Indene 1-Undecene Undecane Dodecane Naphthalene Tridecane 2-Methylnaphthalene Tetradecane Pentadecane Hexadecane Heptadecane Pristane Octadecane Phytane Compound Mass (ng)

17 Oil Result with Structure 14 outline

18 Oil with Gas Results with Structure 14 outline

19 Hierarchical Cluster Analysis C 2 C 20 Carbonyl Sulfide Ethane Propene Propane 1-Butene Butane 2-Methylbutane 1-Pentene Pentane Cyclopentane 2-Methylpentane 3-Methylpentane Hexane Methylcyclopentane 2,4-Dimethylpentane Cyclohexane 2-Methylhexane 3-Methylhexane cis-1,3-dimethylcyclopentane trans-1,3-dimethylcyclopentane trans-1,2-dimethylcyclopentane Heptane 2,5-Dimethylhexane 3-Methylheptane cis-1,3/1,4-dimethylcyclohexane 1-Octene Octane 1-Nonene Nonane Decane Indane Indene 1-Undecene Undecane Dodecane Naphthalene Tridecane 2-Methylnaphthalene Tetradecane Pentadecane Hexadecane Heptadecane Pristane Octadecane Phytane Compound Mass (ng) Carbonyl Sulfide Ethane Propene Propane 1-Butene Butane 2-Methylbutane 1-Pentene Pentane Cyclopentane 2-Methylpentane 3-Methylpentane Hexane Methylcyclopentane 2,4-Dimethylpentane Cyclohexane 2-Methylhexane 3-Methylhexane cis-1,3-dimethylcyclopentane trans-1,3-dimethylcyclopentane trans-1,2-dimethylcyclopentane Heptane 2,5-Dimethylhexane 3-Methylheptane cis-1,3/1,4-dimethylcyclohexane 1-Octene Octane 1-Nonene Nonane Decane Indane Indene 1-Undecene Undecane Dodecane Naphthalene Tridecane 2-Methylnaphthalene Tetradecane Pentadecane Hexadecane Heptadecane Pristane Octadecane Phytane Compound Mass (ng)

20 Example from Northwest Territories, Canada Geologic Setting Location Colville Hills Tweed Lake Anticline Target Cambrian Mount Clark Sandstone overlain by 400 meter thick Saline River evaporate sequence Depth 1,500 meters

21 Colville Lake Proposed Survey Area Tweed Lake Northwest Territories, Canada March, 2005 C 12 0 SDL 042 BP Canada Marketable Reserves 500 BCF Survey Outline Area: 394 Km Size: Grid 595 Modules Model (3 Wells) 45 Modules M 47 Lac Belot A 67 TOTAL 640 Modules Grid: 500 / 500 meters SDL 024 PetroCanada metres 330 ms contour on Time Structure Near Top of Salt Cambrian Mount Clark Net Pay (metres) NWT Open Report ; E.P. Janicki

22 Tweed Lake M47 Signature Carbonyl Sulfide Dimethyl Disulfide Ethene/Ethane Ethane Propene Propane 1-Butene Butane 2-Methylbutane 1-Pentene Pentane Carbon disulfide Cyclopentane 2-Methylpentane 3-Methylpentane Methylcyclopentane 2,4-Dimethylpentane Cyclohexane 2-Methylhexane 3-Methylhexane cis-1,3-dimethylcyclopentane trans-1,3-dimethylcyclopentane trans-1,2-dimethylcyclopentane Heptane Methylcyclohexane 2,5-Dimethylhexane 3-Methylheptane cis-1,3/1,4-dimethylcyclohexane 1-Octene Cycloheptane cis-1,2-dimethylcyclohexane Octane trans-1,3/1,4-dimethylcyclohexane 2,6-Dimethylheptane trans-1,2-dimethylcyclohexane Ethylcyclohexane Nonane Cyclooctane Propylcyclohexane Decane Indane Indene 1-Undecene Undecane Dodecane Naphthalene Tridecane 2-Methylnaphthalene Tetradecane Pentadecane Hexadecane Heptadecane Pristane Octadecane Phytane Tweed Lake M47 Gas/Condensate Well Production Test 5.5 mmcf/d & 624 bcpd Gas Phase Liquid Phase Compound Normalized Mass Values

23 Dry Well Signature Dry Well Signature Carbonyl Sulfide Dimethyl Disulfide Ethene/Ethane Ethane Propene Propane 1-Butene Butane 2-Methylbutane 1-Pentene Pentane Carbon disulfide Cyclopentane 2-Methylpentane 3-Methylpentane Methylcyclopentane 2,4-Dimethylpentane Cyclohexane 2-Methylhexane 3-Methylhexane cis-1,3-dimethylcyclopentane trans-1,3-dimethylcyclopentane trans-1,2-dimethylcyclopentane Heptane Methylcyclohexane 2,5-Dimethylhexane 3-Methylheptane cis-1,3/1,4-dimethylcyclohexane 1-Octene Cycloheptane cis-1,2-dimethylcyclohexane Octane trans-1,3/1,4-dimethylcyclohexane 2,6-Dimethylheptane trans-1,2-dimethylcyclohexane Ethylcyclohexane Nonane Cyclooctane Propylcyclohexane Decane Indane Indene 1-Undecene Undecane Dodecane Naphthalene Tridecane 2-Methylnaphthalene Tetradecane Pentadecane Hexadecane Heptadecane Pristane Octadecane Phytane Compound Mass (ng)

24 C12 Tweed Lake Result Geochemical Feature Identified at Tweed Lake Model of M47 (gas) versus C12 Dry Well M47

25 M - 47 Tweed Lake C12 Geochemical Feature Identified at Tweed Lake Model of M47 (gas) versus C12 Dry Well M47

26 Tweed Lake, Northwest Territories Canada Proterozoic Time Structure

27 Survey Area Colville Hills

28 1 17 Hierarchical Cluster Clusters 15 and 17 Appear Unremarkable (Background) 15 Principle Components Correlated to Clusters

29 Hierarchical Cluster Cluster 15 Signature (Background) Carbonyl Sulfide Dimethyl Disulfide Ethene/Ethane Ethane Propene Propane 1-Butene Butane 2-Methylbutane 1-Pentene Pentane Carbon disulfide Cyclopentane 2-Methylpentane 3-Methylpentane Methylcyclopentane 2,4-Dimethylpentane Cyclohexane 2-Methylhexane 3-Methylhexane cis-1,3-dimethylcyclopentane trans-1,3-dimethylcyclopentane trans-1,2-dimethylcyclopentane Heptane Methylcyclohexane 2,5-Dimethylhexane 3-Methylheptane cis-1,3/1,4-dimethylcyclohexane 1-Octene Cycloheptane cis-1,2-dimethylcyclohexane Octane trans-1,3/1,4-dimethylcyclohexane 2,6-Dimethylheptane trans-1,2-dimethylcyclohexane Ethylcyclohexane Nonane Cyclooctane Propylcyclohexane Decane Indane Indene 1-Undecene Undecane Dodecane Naphthalene Tridecane 2-Methylnaphthalene Tetradecane Pentadecane Hexadecane Heptadecane Pristane Octadecane Phytane Compound Mass (ng) Cluster 17 Signature Carbonyl Sulfide Dimethyl Disulfide Ethene/Ethane Ethane Propene Propane 1-Butene Butane 2-Methylbutane 1-Pentene Pentane Carbon disulfide Cyclopentane 2-Methylpentane 3-Methylpentane Methylcyclopentane 2,4-Dimethylpentane Cyclohexane 2-Methylhexane 3-Methylhexane cis-1,3-dimethylcyclopentane trans-1,3-dimethylcyclopentane trans-1,2-dimethylcyclopentane Heptane Methylcyclohexane 2,5-Dimethylhexane 3-Methylheptane cis-1,3/1,4-dimethylcyclohexane 1-Octene Cycloheptane cis-1,2-dimethylcyclohexane Octane trans-1,3/1,4-dimethylcyclohexane 2,6-Dimethylheptane trans-1,2-dimethylcyclohexane Ethylcyclohexane Nonane Cyclooctane Propylcyclohexane Decane Indane Indene 1-Undecene Undecane Dodecane Naphthalene Tridecane 2-Methylnaphthalene Tetradecane Pentadecane Hexadecane Heptadecane Pristane Octadecane Phytane Compound Mass (ng) Cluster 13 Signature Carbonyl Sulfide Dimethyl Disulfide Ethene/Ethane Ethane Propene Propane 1-Butene Butane 2-Methylbutane 1-Pentene Pentane Carbon disulfide Cyclopentane 2-Methylpentane 3-Methylpentane Methylcyclopentane 2,4-Dimethylpentane Cyclohexane 2-Methylhexane 3-Methylhexane cis-1,3-dimethylcyclopentane trans-1,3-dimethylcyclopentane trans-1,2-dimethylcyclopentane Heptane Methylcyclohexane 2,5-Dimethylhexane 3-Methylheptane cis-1,3/1,4-dimethylcyclohexane 1-Octene Cycloheptane cis-1,2-dimethylcyclohexane Octane trans-1,3/1,4-dimethylcyclohexane 2,6-Dimethylheptane trans-1,2-dimethylcyclohexane Ethylcyclohexane Nonane Cyclooctane Propylcyclohexane Decane Indane Indene 1-Undecene Undecane Dodecane Naphthalene Tridecane 2-Methylnaphthalene Tetradecane Pentadecane Hexadecane Heptadecane Pristane Octadecane Phytane Compound Mass (ng) Cluster 7 Signature Carbonyl Sulfide Dimethyl Disulfide Ethene/Ethane Ethane Propene Propane 1-Butene Butane 2-Methylbutane 1-Pentene Pentane Carbon disulfide Cyclopentane 2-Methylpentane 3-Methylpentane Methylcyclopentane 2,4-Dimethylpentane Cyclohexane 2-Methylhexane 3-Methylhexane cis-1,3-dimethylcyclopentane trans-1,3-dimethylcyclopentane trans-1,2-dimethylcyclopentane Heptane Methylcyclohexane 2,5-Dimethylhexane 3-Methylheptane cis-1,3/1,4-dimethylcyclohexane 1-Octene Cycloheptane cis-1,2-dimethylcyclohexane Octane trans-1,3/1,4-dimethylcyclohexane 2,6-Dimethylheptane trans-1,2-dimethylcyclohexane Ethylcyclohexane Nonane Cyclooctane Propylcyclohexane Decane Indane Indene 1-Undecene Undecane Dodecane Naphthalene Tridecane 2-Methylnaphthalene Tetradecane Pentadecane Hexadecane Heptadecane Pristane Octadecane Phytane Compound Mass (ng)

30 Conclusions These examples show that a surface geochemical technology can determine whether a structure is charged with hydrocarbons before drilling Hydrocarbon phase can be identified prior to drilling thereby lowering your risk in areas where only an oil discovery would be desirable or economical