* DRILLING MUD PROPERTIES RECORD

Transcription

1 WBLL 16/1-4 O STATOIL

2 Anchor Drillb* FM* A/8 * DRILLING MUD PROPERTIES RECORD WELL Anchor Drilling Fluid. A/S

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4 Schlumberger GECO-PRAKLA GEOLAB^NOR GEOCHEMICAL REPORT

5 Schlumberger GECO-PRAKLA GEOLAB8BNOR Chapter 1 INTRODUCTION The geochemical study included investigation of potential source rocks, ranging from Tertiary claystones to Shetland Gp. claystones. Potential reservoir intervals were also analysed, with special emphasis

6 Schlumberger GECO-PRAKLA GEOLABJfiNOR 1.2 Analytical Program The analytical program for well NOGS 16/1-4 was based on the samples selected by Statoil for screening and detailed follow-up analysis. The number of samples for the individual analyses

7 Schlumberger GECO-PRAKLA GEOLABJfiNOR List Abbreviations

8 Schlumberger GECO-PRAKLA GEOLABJfiNOR mrl No Mat. ns = marly = No material left over after washing

9 Schlumberger GECO-PRAKLA GEOLABSBNOR Experimental Headspace

10 Schlumberger GECO-PRAKLA GEOLABJfiNOR Total carbon is also analysed on the same instrument using approximately 200 mg of untreated crushed whole rock. Oxidized (carbonate) carbon

11 Schlumberger GECO-PRAKLA GEOLABJIJNOR data collected

12 Schlumberger GECO-PRAKLA GEOLABJIJNOR Removal of Asphaltenes The EOM is dissolved in tetrahydrofuran in a flask and n-pentane is added to precipitate the asphaltenes.the solution is then stored in the dark and at ambient temperature for at least 8 hours. The solution is then filtered (Baker 10-spe system) and the precipitated asphaltenes returned to the original flask by dissolution in dichloromethane.

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14 Schlumberger GECO-PRAKLA GEOLABJfiNOR Whole Oil/Whole Extract Whole oil chromatograms are determined on a Perkin Elmer Sigma 2000 gas chromatograph fitted with a split injector, 25 m SE54 capillary column and effluent splitter connected to FID and FPD detectors allowing simultaneous determination of hydrocarbons

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16 Schlumberger GECO-PRAKLA GEOLABJHNOR Fluorescence Colour Colour Index Corresp. Vitrinite Reflectance Green Green/yellow Yellow Yellow/orange Light orange Moderate-orange Dark orange Dark orange/red Spore fluorescence extinction 0.2 %

17 Schlumberger GECO-PRAKLA GEOLABJfiNOR mode (MID) at a scan cycle time of approximately 1.1 sec. Calculation

18 Schlumberger GECO-PRAKLA GEOLABJfiNOR Aromatic Fractions Alkyl-substituted Benzenes The M/Z 106 fragment ion is often used to detect the alkyl-substituted benzenes. It is especially useful for the detection of di-substituted benzenes. M/Z 134 can also be used

19 Schlumberger GECO-PRAKLA GEOLAB!BNOR Aromatic Steranes Monoaromatic steranes are detected using the M/Z 253 fragment ion, while the triaromatic steranes are detected using the M/Z 231 fragment ion. 11

20 Schlumberger GECO-PRAKLA GEOLAB^NOR Mass Fragmentograms representing Terpanes (M/Z 163, 177, 191, 205, 370, 384, 398,

21 Schlumberger GECO-PRAKLA GEOLAB5BNOR 21/3 Tricyclic terpane C 21 H 38 (V, R=C 2 H 5 ) 22/3 Tricyclic terpane C^H^

22 Schlumberger GECO-PRAKLA GEOLAB!!!NOR STRUCTURES REPRESENTING TERPANES iv y "sur

23 Schlumberger GECO-PRAKLA GEOLAB!É!NOR Mass Fragmentograms representing Steranes (M/Z 149, 189, 217, 218, 259, 372, 386,

24 M30D Schlumberger GECO-PRAKLA GEOLAB^NOR

25 Schlumberger GECO-PRAKLA GEOLAB!BNOR STRUCTURES REPRESENTING STERANES II 111 IV VI

26 Schlumberger GECO-PRAKLA GEOLAB5IBNOR Mass Fragmentograms representing Monoaromatic Steranes (M/Z 253) Description of C-ring monoaromatic steroid hydrocarbons Substituents Abbreviation Peak R 1 R 2 R 3 R 4 of Compound A1 B1 C 21 M C 22 MA C1 P(H) CH 3 S(CH 3 ) H psc 27 MA p(h) CH 3 R(CH 3 ) H prc 27 MA D1 CH 3 H R(CH 3 ) H RC 27 DMA cc(h) CH 3 S(CH 3 ) H asc 27 MA E1 P(H) CH 3 S(CH 3 ) CH 3 psc 28 MA CH 3 H S(CH 3 ) CH 3 SC 28 DMA F1 a(h) CH 3 R(CH 3 ) H arc 27 MA a(h)

27 Schlumberger GECO-PRAKLA GEOLAB^NOR STRUCTURES REPRESENTING MONOAROMATIC STERANES

28 Schlumberger GECO-PRAKLA GEOLABØfiNOR Mass Fragmentograms representing Triaromatic Steranes (M/Z 231) Description of ABC-ring triaromatic steroid hydrocarbons Peak Substituents Abbreviation

29 SchlufnbcFDcr GECO-PRAKLA GEOLABSIJNOR 11

30 Schlumberger GECO-PRAKLA GEOLAB5BNOR Stable Carbon Isotope Ratio Mass Spectrometry Carbon isotope analysis

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32 Schlumberger GECO-PRAKLA GEOLAB^NOR - 1- Table 1 : Lithology description for well NOCS 16/1-4 Depth unit

33 Schlumberger GECO-PRAKLA GEOLAB5IJNOR - 2- Table 1 : Lithology description for well NOCS 16/1-4 Depth unit of measure: m Depth Type

34 Schlumberger GECO-PRAKLA GEOLAB!É!NOR Table 1 : Lithology description for well NOGS 16/1-4 Depth unit

35 Schlumberger GECO-PRAKLA GEOLABØ!NOR Table 1 : Lithology description for well NOCS 16/1-4 Depth unit of measure: m Depth Type Grp Frm Age Int Cvd TOC% % Lithology description eom Basement(?) 100 Other Trb Sample L

36 Table 2a: Rock-Eval table for well NOGS 16/1-4 Depth unit of measure: ra Depth

37 Table 2a: Rock-Eval table for well NOGS 16/1-4 Depth unit of measure: m Depth Typ Lithology SI S2 S3 S2/S3 TOG HI Ol PP Page: 2 PI Tmax Sample

38 Table 2B: ROCK-EVAL TABLE, STANDARDS

39 Table

40 Table 3B: Results of TLC-FID analysis: Rel. percentages of sep. fractions for well NOGS 16/1-4 Depth Depth unit of measure: m