/2" hole section (4292 mmd mmd, 3122 mtvd mtvd ) The section was drilled in 13 drilling runs in addition to 3 runs for coring.

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1 WELL 30/37B O STATOIL /2" hole section (4292 mmd 5970 mmd, 3122 mtvd 4217 mtvd ) The section was drilled in 13 drilling runs in addition to 3 runs for coring. The direction turned from 281 to 320 at the end of the section. The inclination was increased from 44 to 67 before dropping to 9 at TD. It was experienced steering problems and difficulties to drop inclination. The section was drilled with 1.53 sg Interdrill, pseudo oilbased mud. Page 3 of 55

2 WELL 30/37B 2.6 Wellbore Schematic O STATOIL HULt Prein stalled 26" conductor to 467,0 m MD. CASINCi 20"csg.! 33 Ibs/fl P110. ATS (Installed in well 7S) TVD 1 m MD E WELLHEAD TOC atwh 26" conductor shoe " casing shoe l3v8"csg.. 72 lbs,'ft. PI10/NTI40. (Installed in well 7S> ETOC 2655 mmd ~~206T ~~278T 13 3/8" csg window Fm,75SGEMW Inclination: 53 deg. 9 5/8" casing ibs/ft.0125 Threads: BDS. Drilled 12 1/4" hole to 4292 mmd. 372 joints incl 2 pup 1 x NWTR3 centr. from TD to 2659m MD ~~3T22~ 4292 TopZXP 9 5/8" casing shoe Inclination: 45 deg. 5" liner 18.0 lbs/ft. BDS Drilled 8 1/2" hole to 5970 m MD. IJCrSO 50 jnts. + hanger 1 x spiraglider centr U U 69/U TD Landing Collar 5" linershoe Inclination: 9 deg. 5" x 9 5/8" HexLock liner hanger Radioactive markers at 5095 m, 5491 m and 5861 m. Page 5 of 55

3 WELL 30/37B O STATOi. FORMATION PRESSURE FORMASJONS MDT BRØNN: 30/37B KJØRING: IB DATO: TST # SONE NAVN mmdbd msvd MSL INIT. MÅLT AVL. PORE ref. BD BRØNN HPafter MÅLERsc hlum. file no. KRFT mdcp TEMP»C KOMMENTARER 1. B2B QD B2B QD B2A QD B2A QD QD QD QD , 2nd pass QD , 2nd pass , 2nd pass no constant build up, 2nd pass QD , 2nd pass Page 8 of 55

4 WELL 30/37B O STATO... FORMASJONSTRVKK MDT BRØNN: 30/37B KJØRING: IB DATO: TST # SONE NAVN mmdbd msvd MSL IN1T. MÅLT AVL. PORE ref. BD BRØNN HP after MÅLERsch lum. file no. KRFT mdcp TEMP C KOMMENTARER cc fluid sample, 2nd pass QD QD120 no seal, no print , 2nd pass QD119 no seal probe 1, no print no seal probe 2, no print , 2nd pass QDl , 2nd pass QD QD QD QD QD QDl QD QDl QDl28 Page 9 of 55

5 WELL 30/37B O STATO. FORMASJONS.IDT BRØNN: 30/37B KJØRING: IB DATO: TST # SONE NAVN mmdbd msvd MSL IN1T. MÅLT AVL. PORE ref. BD BRØNN HPafter MÅLERsch lum. file no. KRFT mdcp TEMPC KOMMENTARER Etive Etive QD132 QD134 QD133 QD135 QD Etive B3 B3 B3 B3 B3 B QDl37 QD138 QD140 QDl39 QD141 QD142 QD no seal still small BU 1 st DD, 2nd leak? 50. B QD B QD Tarbert QD Tarbert QD Tarbert QD Tarbert QD QDl QD151 no seal Page 10 of 55

6 WELL 30/37B O STATOiu FORMASJONS MDT BRØNN: 30/37B KJØRING: IB DATO: T T TST # SONE NAVN mmdbd msvd MSL INIT. MÅLT AVL. PORE ref. BD BRØNN HP after MÅLERscli lum. file no. KRFT milcp TEMPC KOMMENTARER 58. Etive QD152 both probes 59. Etive QD Etive QD still build up, 2nd pass , 2nd pass QD no seal QD QD QD QD , 2nd pass, probe QD nd pass, still BU QD QDl x 450cc fluid samples only # 1 on file, 2nd pass QD Page 11 of 55

7 WELL 30/37B O STATOIL FORMASJONS MDT BRØNN: 30/37B KJØRING: IB DATO: T TST # SONE NAVN mmdbd msvd MSL INIT. MÅLT AVL. PORE ref. BD BRØNN HPafter MÅLERsc hlum. file no. KR FT mdcp TEMP'C KOMMENTARER , 2nd pass almost, 2nd pass , abort fluid sampling due to power black, 2nd pass , 2nd pass QD , abort fluid sampling due to tool compression, 2nd pass , 2nd pass QD QD QD167 QDl Antall tester: 89 nivåer Vellykka tester: 39 nivåer Antall væskeprøver: 2 (4x 450cc in total) Hydrostatisk gradient til overflaten : g/cc Hydrostatisk gradient i loggeintervallet: g/cc Maks. poretrykksgradient i intervallet ref. BD : g/cc Min. poretrykksgradient i ntervallet ref. BD : g/cc Page 12 of 55

8 WELL 30/37B O STATOIL KOMMENTARAR: SGI reads approx. 10 bars lower than QD1 (and & SG2) 3 x 450cc samples taken in, porbably gas, 1 x 450cc sample taken in, water (contaminated). All pressure points and fluid samples in 2nd pass were taken with probe #2 (except for pressure point #71) FORMASJONS MDT BRØNN: 30/37B KJØRING: 1C DATO: TST # SONE NAVN mmdbd msvd MSL IN1T. MÅLT AVL. PORE ref. BD BRØNN HP after MÅLER KRFT mdcp TEMPC KOMMENTARER sampling 2 x 1 gal. 2 x 400cc PVT. (no clean up) Supercharged/ Supercharged/ Dårlig, men permeabel Ikke ventet lenge n Supercharged/ Supercharged/ Supercharged/ Antall tester: 9 nivåer Hydrostatisk gradient til overflaten : g/cc Hydrostatisk gradient i loggeintervallet: g/cc Maks. poretrykksgradient i intervallet ref.bd : g/cc Min. poretrykksgradient i intervallet ref. BD : 1.166g/cc Vellykka tester: 3 nivåer Antall væskeprøver: 2x450cc, 2 x 1 gal Page 13 of 55

9 WELL 30/37B KOMMENTARAR: 2 x 450cc sent to lab, 2 x 1 gal dumped on rig, 1 st 1 gal (sn MRSC GA 143) No pressure on bottle, no gas, 1.6 It fluid probably mud / filtrate 2 nd 1 gal bottle (sn MRSC GA48), 245 bar pressure, 230 cu ft gas and 1 It fluid porbably mud/filtrate. Gas breakdown Cl ppm, C ppm, C ppm IC ppm, nc ppm, ic ppm.. Fluid density of sample g/cc and base oil density g/cc. Both fluid samples from 1 gal bottles also sent to Sclumberger labs. Page 14 of 55

10 KJELLER HALDEN Address N2007 Kjeller, Norway N1751 Halden, Norway Telephone Telex isotp n energ n Telefax Availability In Confidence Report type Summary Report number IFE/KR/F98/179 Report title DATAREPORT ON STABLE ISOTOPES, GAS SAMPLES FROM WELL 30/37B (ref. IFE no ) Client Statoil Client reference G9816 Date Date of last revision Revision number Number of pages 6 Number of issues 15 Distribution Two gas samples from well 30/37B; sample TS 11313/ m and TS 9116/ m are analysed for gas and isotopic composition. The work is done in accordance with «The Norwegian Industry Guide to Organic Geochemical Analyses», third edition Statoil (8) Andresen, B. Bjørnstad, T. Johansen, H. Sieglé, S. File (3) Keywords: Prepared by Reviewed by Name Bjørg Andresen Sylviane Sieglé Harald Johansen Date Signature Approved by Tor Bjønstad

11 1 Introduction Two gas samples from well 30/37B; sample TS 11313/ m and TS 9116/ m are analysed for gas and isotopic composition. On the samples Q C5 and CO2 are quantified. The 5 13 C value is measured on methane, ethane, propane, the butanes and CO2. In addition the 5D value is measured on methane. 2 Analytical procedures Aliquots of 0.5 ml are sampled with a syringe for analysis on a Poraplot Q column connected with flame ionisation (FED) and thermal conductivity (TCD) detectors. The detection limit for the hydrocarbon gas components is 0.01 fil/ml, for CO2 0.2 il/ml. For the isotope analysis 510 ml of the gas is sampled with a syringe and then separated into the different gas components by a Carlo Erba 4200 gas chromatograph. The hydrocarbon gas components are oxidised in separate CuOovens in order to prevent cross contamination. The combustion products CO2 and H2O are frozen into collection vessels and separated. The combustion water is reduced with zinc metal in a sealed quarts tubes to prepare hydrogen for isotopic analysis. The isotopic measurements are performed on a Finnigan MAT 251 and a Finnigan Delta mass spectrometer. IFEs value on NBS 22 is ±.06%o PDB. The uncertainty in the 5 13 C value is estimated to be ± 0.3%o PDB and includes all the different analytical steps. The estimate is based on repeated analysis of a laboratory standard gas mixture. The uncertainty in the 8D value is likewise estimated to be ± 10%o. 3 Results The normalised volume composition of the gas samples is shown in Table 1. The stable isotope composition is shown in Table 2. The molecular composition related to the carbon isotope variations in methane from the samples are plotted in Figure 1 (Schoell, 1983), the carbon and hydrogen variations in

12 methane are plotted in Figure 2 (Schoell, 1983) and the carbon isotope variation in ethane related to the carbon isotope variations in methane in Figure 3 (Schoell, 1983). The 8 13 C values of methane, ethane and propane are plotted in James maturity diagram (James, 1983), Figure 4. A source LOM between 10 and 11 is indicated for the gas samples. Table 1 Volume composition of gas samples (normalised values) from well 30I37B Bottle Sample depth IFEno GEO Cl c 2 c 3 ic 4 nc4 ic 5 ncs co 2. Cl C5 Wetness nc 4 TS 11313/ TS 9116/ Table 2 Isotopic composition of gas samples from well 30I37B Bottle Sample depth IFEno GEO Cl 5 13 C %opdb Cl 8D%o SMOW c C %opdb c C %opdb ic 4 S 13 C %epdb nc C %opdb co C % 0 PDB co O %opdb TS 11313/ TS 9116/ Literature James, A.T. (1983). Correlation of natural gas by use of carbon isotopic distribution between hydrocarbon components. The American Association of Petroleum Geologists Bulletin, 67, Robert, P. (1985) methods and means of paleothermal analysis. Organic methamorphism and Geothermal History, ElfAquitaine and D. Reidel Publishing Company. Schoell, M. (1983). Genetic characterisation of natural gases. The American Association of Petroleum Geologists Bulletin, 67,