ANADRILL SCHLUMBERGER Survey report 30-May-2001 08:20:26 Page 1 of 4 Client...................: Field....................: Well.....................: Spud date................: API number...............: Last survey date.........: 24-May-01 Engineer.................: Total accepted surveys...: 71 MD of first survey.......: 0.00 m COUNTY:..................: MD of last survey........: 2710.00 m STATE:...................: ----- Survey calculation methods------------- ----- Geomagnetic data ---------------------- Method for positions.....: Minimum curvature Magnetic model...........: BGGM version 2000 Method for DLS...........: Mason & Taylor Magnetic date............: 10-May-2001 Magnetic field strength..: 1224.35 HCNT ----- Depth reference ----------------------- Magnetic dec (+E/W-).....: 11.08 degrees Permanent datum..........: GROUND LEVEL Magnetic dip.............: -70.40 degrees Depth reference..........: GL above permanent.......: -15240.00 m ----- MWD survey Reference Criteria --------- KB above permanent.......: -15240.00 m Reference G..............: 1000.12 mGal DF above permanent.......: -15240.00 m Reference H..............: 1224.35 HCNT Reference Dip............: -70.40 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-).....: 11.08 degrees Departure (+E/W-)........: -304.57 m Grid convergence (+E/W-).: 1.20 degrees Total az corr (+E/W-)....: 9.88 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_10] ANADRILL SCHLUMBERGER Survey Report 30-May-2001 08:20:26 Page 2 of 4 === ======== ====== ======= ====== ======== ======== ================ =============== ===== ===== ====== 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 0.00 0.00 0.00 0.00 0.00 -2.50 -2.50 6.30 6.78 111.64 0.00 TIP - 2 44.00 0.50 184.05 44.00 44.00 -2.69 -2.69 6.29 6.84 113.18 0.11 EMS - 3 76.00 0.94 188.10 32.00 76.00 -3.09 -3.09 6.24 6.96 116.35 0.14 EMS - 4 104.00 0.46 145.02 28.00 103.99 -3.41 -3.41 6.27 7.14 118.53 0.24 EMS - 5 132.00 0.87 102.96 28.00 131.99 -3.55 -3.55 6.54 7.44 118.48 0.22 EMS - 6 162.00 0.69 81.11 30.00 161.99 -3.57 -3.57 6.94 7.81 117.23 0.11 EMS - 7 190.00 0.89 169.39 28.00 189.99 -3.76 -3.76 7.15 8.08 117.74 0.40 EMS - 8 217.00 0.71 280.86 27.00 216.99 -3.94 -3.94 7.02 8.05 119.26 0.49 EMS - 9 244.00 0.79 174.59 27.00 243.99 -4.09 -4.09 6.88 8.00 120.73 0.44 EMS - 10 271.00 0.75 177.81 27.00 270.98 -4.45 -4.45 6.90 8.21 122.82 0.02 EMS - 11 298.00 0.92 175.72 27.00 297.98 -4.84 -4.84 6.93 8.45 124.97 0.06 EMS - 12 327.00 0.99 178.06 29.00 326.98 -5.33 -5.33 6.95 8.76 127.46 0.03 EMS - 13 356.00 1.05 177.33 29.00 355.97 -5.84 -5.84 6.97 9.10 129.96 0.02 EMS - 14 385.00 1.09 179.22 29.00 384.97 -6.38 -6.38 6.99 9.46 132.41 0.02 EMS - 15 415.00 0.98 167.44 30.00 414.96 -6.92 -6.92 7.05 9.88 134.47 0.08 EMS - 16 444.00 0.87 182.37 29.00 443.96 -7.38 -7.38 7.09 10.24 136.14 0.09 EMS - 17 473.00 0.99 184.78 29.00 472.95 -7.85 -7.85 7.06 10.56 138.03 0.04 EMS - 18 502.00 0.99 134.86 29.00 501.95 -8.28 -8.28 7.22 10.98 138.91 0.29 EMS - 19 531.00 0.84 250.56 29.00 530.95 -8.52 -8.52 7.20 11.16 139.83 0.53 EMS - 20 560.00 0.67 325.84 29.00 559.95 -8.46 -8.46 6.90 10.91 140.78 0.32 EMS - 21 589.00 0.80 318.39 29.00 588.94 -8.16 -8.16 6.67 10.54 140.74 0.06 EMS - 22 617.00 0.91 323.74 28.00 616.94 -7.84 -7.84 6.41 10.13 140.72 0.05 EMS - 23 646.00 1.00 319.58 29.00 645.94 -7.46 -7.46 6.11 9.64 140.68 0.04 EMS - 24 675.00 1.07 323.51 29.00 674.93 -7.05 -7.05 5.78 9.12 140.63 0.03 EMS - 25 704.00 0.98 313.42 29.00 703.93 -6.66 -6.66 5.44 8.60 140.75 0.07 EMS - 26 733.00 0.93 313.01 29.00 732.92 -6.33 -6.33 5.09 8.12 141.19 0.02 EMS - 27 752.00 0.89 310.74 19.00 751.92 -6.13 -6.13 4.87 7.83 141.55 0.03 EMS - 28 781.00 0.82 277.05 29.00 780.92 -5.96 -5.96 4.49 7.46 142.99 0.17 EMS - 29 812.00 0.62 256.03 31.00 811.92 -5.97 -5.97 4.11 7.25 145.47 0.11 EMS - 30 843.00 0.82 261.69 31.00 842.91 -6.04 -6.04 3.72 7.10 148.35 0.07 EMS - [(c)2001 Anadrill IDEAL ID6_1C_10] ANADRILL SCHLUMBERGER Survey Report 30-May-2001 08:20:26 Page 3 of 4 === ======== ====== ======= ====== ======== ======== ================ =============== ===== ===== ====== 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 === ======== ====== ======= ====== ======== ======== ================ =============== ===== ===== ====== 31 874.00 0.63 227.91 31.00 873.91 -6.19 -6.19 3.38 7.05 151.37 0.15 EMS - 32 905.00 0.49 276.90 31.00 904.91 -6.29 -6.29 3.12 7.02 153.60 0.16 EMS - 33 936.00 0.55 254.16 31.00 935.91 -6.31 -6.31 2.85 6.92 155.73 0.07 EMS - 34 967.00 0.59 253.41 31.00 966.91 -6.40 -6.40 2.55 6.89 158.27 0.01 EMS - 35 998.00 0.53 260.69 31.00 997.91 -6.47 -6.47 2.26 6.85 160.77 0.03 EMS - 36 1029.00 0.66 224.81 31.00 1028.90 -6.62 -6.62 1.99 6.91 163.28 0.12 EMS - 37 1060.00 0.63 259.62 31.00 1059.90 -6.77 -6.77 1.69 6.98 165.95 0.12 EMS - 38 1091.00 1.16 280.21 31.00 1090.90 -6.75 -6.75 1.22 6.86 169.77 0.20 EMS - 39 1122.00 1.43 291.05 31.00 1121.89 -6.55 -6.55 0.55 6.58 175.22 0.12 EMS - 40 1153.00 1.71 172.79 31.00 1152.88 -6.87 -6.87 0.25 6.88 177.96 0.87 EMS - 41 1184.00 0.81 292.56 31.00 1183.88 -7.25 -7.25 0.10 7.25 179.20 0.72 EMS - 42 1215.00 0.85 272.56 31.00 1214.88 -7.15 -7.15 -0.33 7.16 182.65 0.09 EMS - 43 1246.00 0.88 281.83 31.00 1245.87 -7.10 -7.10 -0.79 7.14 186.38 0.05 EMS - 44 1277.00 0.91 283.50 31.00 1276.87 -6.99 -6.99 -1.27 7.10 190.27 0.01 EMS - 45 1308.00 0.78 289.48 31.00 1307.87 -6.86 -6.86 -1.70 7.07 193.95 0.05 EMS - 46 1339.00 0.84 303.25 31.00 1338.86 -6.67 -6.67 -2.09 6.99 197.43 0.07 EMS - 47 1370.00 0.89 301.40 31.00 1369.86 -6.42 -6.42 -2.49 6.88 201.20 0.02 EMS - 48 1401.00 0.84 303.67 31.00 1400.86 -6.16 -6.16 -2.88 6.81 205.07 0.02 EMS - 49 1432.00 0.93 306.14 31.00 1431.85 -5.89 -5.89 -3.28 6.74 209.08 0.03 EMS - 50 1463.00 0.94 323.43 31.00 1462.85 -5.54 -5.54 -3.63 6.62 213.25 0.09 EMS - 51 1494.00 1.13 303.89 31.00 1493.84 -5.16 -5.16 -4.04 6.55 218.01 0.13 EMS - 52 1525.00 1.18 302.57 31.00 1524.84 -4.82 -4.82 -4.56 6.64 223.40 0.02 EMS - 53 1556.00 0.72 334.98 31.00 1555.83 -4.47 -4.47 -4.91 6.64 227.67 0.22 EMS - 54 1587.00 0.73 346.84 31.00 1586.83 -4.10 -4.10 -5.04 6.50 230.83 0.05 EMS - 55 1618.00 1.07 326.99 31.00 1617.83 -3.67 -3.67 -5.24 6.40 235.00 0.15 EMS - 56 1649.00 0.80 349.84 31.00 1648.82 -3.21 -3.21 -5.44 6.31 239.41 0.15 EMS - 57 1680.00 0.91 349.60 31.00 1679.82 -2.76 -2.76 -5.52 6.17 243.44 0.04 EMS - 58 1711.00 1.03 355.10 31.00 1710.81 -2.24 -2.24 -5.59 6.02 248.17 0.05 EMS - 59 1742.00 0.90 3.57 31.00 1741.81 -1.72 -1.72 -5.60 5.85 252.93 0.06 EMS - 60 1773.00 1.17 5.03 31.00 1772.80 -1.16 -1.16 -5.55 5.67 258.21 0.09 EMS - [(c)2001 Anadrill IDEAL ID6_1C_10] ANADRILL SCHLUMBERGER Survey Report 30-May-2001 08:20:26 Page 4 of 4 === ======== ====== ======= ====== ======== ======== ================ =============== ===== ===== ====== 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 === ======== ====== ======= ====== ======== ======== ================ =============== ===== ===== ====== 61 1804.00 1.63 12.01 31.00 1803.80 -0.41 -0.41 -5.43 5.45 265.65 0.16 EMS - 62 1835.00 1.88 11.25 31.00 1834.78 0.52 0.52 -5.24 5.27 275.63 0.08 EMS - 63 1888.38 2.09 27.56 53.38 1888.13 2.24 2.24 -4.62 5.13 295.85 0.11 MWD 6-axis 64 1973.18 2.40 17.34 84.80 1972.86 5.30 5.30 -3.38 6.29 327.52 0.06 MWD 6-axis 65 2059.60 2.97 20.52 86.42 2059.19 9.13 9.13 -2.05 9.36 347.33 0.07 MWD 6-axis 66 2145.69 2.46 21.36 86.09 2145.18 12.94 12.94 -0.60 12.95 357.36 0.06 MWD 6-axis 67 2233.45 2.18 23.26 87.76 2232.87 16.23 16.23 0.75 16.24 2.64 0.03 MWD 6-axis 68 2318.15 1.83 30.40 84.70 2317.52 18.87 18.87 2.07 18.99 6.25 0.05 MWD 6-axis 69 2390.75 1.50 32.45 72.60 2390.09 20.67 20.67 3.16 20.91 8.70 0.05 MWD 6-axis 70 2447.71 1.48 41.38 56.96 2447.03 21.85 21.85 4.05 22.23 10.50 0.04 MWD 6-axis 71 2710.00 1.48 41.38 262.29 2709.23 26.94 26.94 8.53 28.26 17.57 0.00 MWD PROJ [(c)2001 Anadrill IDEAL ID6_1C_10]