ANADRILL SCHLUMBERGER Survey report 16-Jun-2001 01:42:11 Client...................: Woodside Energy Limited Field....................: Otway Basin Well.....................: Geographe-1 Spud date................: 30-May-01 API number...............: Last survey date.........: 16-Jun-01 Engineer.................: A.Strahan, L.Muskett Total accepted surveys...: 61 MD of first survey.......: 110.00 m MD of last survey........: 2430.00 m STATE:...................: Victoria ----- Survey calculation methods------------- ----- Geomagnetic data ---------------------- Method for positions.....: Minimum curvature Magnetic model...........: BGGM version 2000 Method for DLS...........: Mason & Taylor Magnetic date............: 07-Jun-2001 Magnetic field strength..: 1223.18 HCNT ----- Depth reference ----------------------- Magnetic dec (+E/W-).....: 11.05 degrees Permanent datum..........: GROUND LEVEL Magnetic dip.............: -70.29 degrees Depth reference..........: GL above permanent.......: -15240.00 m ----- MWD survey Reference Criteria --------- KB above permanent.......: -15240.00 m Reference G..............: 1000.11 mGal DF above permanent.......: -15240.00 m Reference H..............: 1223.18 HCNT Reference Dip............: -70.29 degrees ----- Vertical section origin---------------- Tolerance of G...........: (+/-) 2.50 mGal Latitude (+N/S-).........: 0.00 m Tolerance of H...........: (+/-) 6.00 HCNT Departure (+E/W-)........: 0.00 m Tolerance of Dip.........: (+/-) 0.45 degrees ----- Platform reference point--------------- ----- Corrections --------------------------- Latitude (+N/S-).........: -304.57 m Magnetic dec (+E/W-).....: 11.05 degrees Departure (+E/W-)........: -304.57 m Grid convergence (+E/W-).: 1.20 degrees Total az corr (+E/W-)....: 9.85 degrees Azimuth from rotary table to target: 0.00 degrees (Total az corr = magnetic dec - grid conv) Sag applied (Y/N)........: No degree: 0.00 [(c)2001 Anadrill IDEAL ID6_1C_03] ANADRILL SCHLUMBERGER Survey Report 16-Jun-2001 01:42:11 === ======== ====== ======= ====== ======== ======== ================ =============== ===== ===== ====== Seq Measured Incl Azimuth Course TVD Vertical Displ Displ Total At DLS Srvy Tool # depth angle angle length depth section +N/S- +E/W- displ Azim (deg/ tool qual - (m) (deg) (deg) (m) (m) (m) (m) (m) (m) (deg) 10m) type type === ======== ====== ======= ====== ======== ======== ================ =============== ===== ===== ====== 1 110.00 0.00 0.00 0.00 110.00 -6.20 -6.20 8.70 10.68 125.48 0.00 TIP - 2 189.10 0.50 231.87 79.10 189.10 -6.41 -6.41 8.43 10.59 127.27 0.06 MS - 3 218.10 0.56 238.20 29.00 218.10 -6.57 -6.57 8.21 10.51 128.66 0.03 MS - 4 247.10 0.38 220.69 29.00 247.10 -6.71 -6.71 8.03 10.46 129.91 0.08 MS - 5 276.10 0.35 249.81 29.00 276.10 -6.82 -6.82 7.88 10.42 130.86 0.06 MS - 6 305.10 0.36 245.47 29.00 305.10 -6.89 -6.89 7.71 10.34 131.75 0.01 MS - 7 334.10 0.36 242.38 29.00 334.10 -6.97 -6.97 7.55 10.27 132.69 0.01 MS - 8 363.10 0.21 240.21 29.00 363.09 -7.03 -7.03 7.42 10.23 133.46 0.05 MS - 9 392.10 0.28 233.99 29.00 392.09 -7.10 -7.10 7.32 10.20 134.14 0.03 MS - 10 421.10 0.31 212.96 29.00 421.09 -7.21 -7.21 7.22 10.20 134.96 0.04 MS - 11 450.10 0.24 173.99 29.00 450.09 -7.34 -7.34 7.18 10.27 135.60 0.07 MS - 12 479.10 0.17 337.21 29.00 479.09 -7.36 -7.36 7.17 10.27 135.72 0.14 MS - 13 508.10 0.22 183.67 29.00 508.09 -7.37 -7.37 7.15 10.27 135.87 0.13 MS - 14 537.10 0.18 205.51 29.00 537.09 -7.47 -7.47 7.13 10.33 136.33 0.03 MS - 15 560.10 0.13 125.20 23.00 560.09 -7.52 -7.52 7.14 10.36 136.49 0.09 MS - 16 623.90 0.45 124.14 63.80 623.89 -7.70 -7.70 7.40 10.68 136.13 0.05 MS - 17 652.80 0.42 116.52 28.90 652.79 -7.81 -7.81 7.59 10.89 135.82 0.02 MS - 18 681.70 0.49 120.36 28.90 681.69 -7.92 -7.92 7.79 11.11 135.47 0.03 MS - 19 710.70 0.51 109.34 29.00 710.69 -8.03 -8.03 8.02 11.35 135.02 0.03 MS - 20 739.80 0.62 110.62 29.10 739.79 -8.12 -8.12 8.29 11.61 134.42 0.04 MS - 21 768.70 0.79 99.81 28.90 768.69 -8.21 -8.21 8.63 11.92 133.57 0.07 MS - 22 797.80 0.73 96.47 29.10 797.78 -8.27 -8.27 9.01 12.23 132.52 0.03 MS - 23 826.90 0.71 102.56 29.10 826.88 -8.33 -8.33 9.38 12.54 131.61 0.03 MS - 24 855.80 0.58 113.58 28.90 855.78 -8.43 -8.43 9.68 12.84 131.02 0.06 MS - 25 884.70 0.50 169.10 28.90 884.68 -8.61 -8.61 9.84 13.07 131.17 0.18 MS - 26 913.50 0.39 172.08 28.80 913.48 -8.83 -8.83 9.88 13.25 131.78 0.04 MS - 27 942.60 0.10 201.84 29.10 942.58 -8.95 -8.95 9.88 13.33 132.16 0.11 MS - 28 971.70 0.10 134.56 29.10 971.68 -8.99 -8.99 9.89 13.37 132.27 0.04 MS - 29 1000.80 0.12 143.17 29.10 1000.78 -9.03 -9.03 9.93 13.42 132.30 0.01 MS - 30 1029.90 0.19 237.08 29.10 1029.88 -9.08 -9.08 9.91 13.44 132.52 0.08 MS - 31 1059.00 0.15 220.33 29.10 1058.98 -9.14 -9.14 9.84 13.43 132.88 0.02 MS - 32 1088.00 0.37 305.43 29.00 1087.98 -9.11 -9.11 9.74 13.34 133.10 0.13 MS - 33 1116.50 0.39 285.43 28.50 1116.48 -9.03 -9.03 9.57 13.16 133.35 0.05 MS - 34 1145.50 0.43 350.19 29.00 1145.48 -8.90 -8.90 9.46 12.99 133.26 0.15 MS - 35 1174.00 0.23 282.58 28.50 1173.97 -8.78 -8.78 9.38 12.85 133.11 0.14 MS - 36 1203.20 0.28 267.73 29.20 1203.17 -8.77 -8.77 9.26 12.75 133.47 0.03 MS - 37 1232.50 0.41 270.75 29.30 1232.47 -8.77 -8.77 9.08 12.63 134.02 0.04 MS - 38 1261.70 0.56 273.94 29.20 1261.67 -8.76 -8.76 8.83 12.44 134.78 0.05 MS - 39 1290.60 0.65 250.61 28.90 1290.57 -8.81 -8.81 8.54 12.27 135.90 0.09 MS - 40 1319.60 0.58 232.53 29.00 1319.57 -8.95 -8.95 8.26 12.18 137.29 0.07 MS - 41 1348.80 0.40 236.73 29.20 1348.77 -9.10 -9.10 8.06 12.16 138.45 0.06 MS - 42 1378.00 0.44 196.58 29.20 1377.97 -9.26 -9.26 7.95 12.20 139.37 0.10 MS - 43 1406.60 0.39 315.22 28.60 1406.57 -9.30 -9.30 7.85 12.17 139.84 0.25 MS - 44 1435.70 0.22 329.68 29.10 1435.67 -9.18 -9.18 7.75 12.01 139.84 0.06 MS - 45 1464.50 0.74 239.16 28.80 1464.47 -9.23 -9.23 7.56 11.93 140.67 0.27 MS - 46 1493.00 0.49 244.45 28.50 1492.96 -9.37 -9.37 7.29 11.88 142.12 0.09 MS - 47 1522.30 0.27 290.71 29.30 1522.26 -9.40 -9.40 7.11 11.79 142.89 0.12 MS - 48 1551.30 0.54 354.50 29.00 1551.26 -9.24 -9.24 7.04 11.62 142.72 0.17 MS - 49 1580.60 0.73 23.01 29.30 1580.56 -8.93 -8.93 7.10 11.41 141.54 0.12 MS - 50 1609.70 0.52 2.07 29.10 1609.66 -8.63 -8.63 7.17 11.22 140.27 0.11 MS - 51 1629.00 0.60 320.28 19.30 1628.96 -8.47 -8.47 7.11 11.06 139.97 0.21 MS - 52 1644.90 0.82 304.70 15.90 1644.86 -8.34 -8.34 6.97 10.86 140.12 0.18 MS - 53 1712.56 1.32 331.60 67.66 1712.51 -7.38 -7.38 6.20 9.63 139.96 0.10 MWD 6-axis 54 1771.96 2.31 281.29 59.40 1771.88 -6.54 -6.54 4.70 8.05 144.31 0.30 MWD 6-axis 55 1858.15 2.75 285.30 86.19 1857.98 -5.65 -5.65 1.00 5.74 169.97 0.05 MWD 6-axis 56 1892.08 2.74 285.94 33.93 1891.88 -5.22 -5.22 -0.56 5.25 186.18 0.01 MWD 6-axis 57 1982.51 3.40 279.36 90.43 1982.18 -4.19 -4.19 -5.29 6.75 231.63 0.08 MWD 6-axis 58 2069.37 3.67 272.00 86.86 2068.87 -3.67 -3.67 -10.61 11.23 250.91 0.06 MWD 6-axis 59 2217.19 4.06 267.99 147.82 2216.35 -3.69 -3.69 -20.57 20.89 259.83 0.03 MWD 6-axis 60 2314.68 4.18 272.34 97.49 2313.59 -3.67 -3.67 -27.57 27.81 262.43 0.03 MWD 6-axis 61 2430.00 4.18 272.34 115.32 2428.61 -3.32 -3.32 -35.96 36.12 264.72 0.00 MWD PROJ