SCHLUMBERGER Survey report 7-Sep-2009 10:00:34 Page 1 of 2 Client...................: JAMSTEC Field....................: Nankai-Kumano Well.....................: NT1-07 Spud date................: 26-Aug-09 Service Order No.........: 09JAP0004 Last survey date.........: 03-Sep-09 Engineer.................: Ito/Yang Total accepted surveys...: 28 MD of first survey.......: 0.00 m Rig:.....................: Chikyu MD of last survey........: 5030.12 m Country:.................: JAPAN ----- Survey calculation methods------------- ----- Geomagnetic data ---------------------- Method for positions.....: Minimum curvature Magnetic model...........: BGGM version 2008 Method for DLS...........: Lubinski Magnetic date............: 03-Sep-2009 Magnetic field strength..: 911.34 HCNT ----- Depth reference ----------------------- Magnetic dec (+E/W-).....: -6.34 degrees Permanent datum..........: Mean Sea Level Magnetic dip.............: 46.04 degrees Depth reference..........: Driller's Depth GL above permanent.......: -4077.30 m ----- MWD survey Reference Criteria --------- KB above permanent.......: 28.30 m Reference G..............: 999.55 mGal DF above permanent.......: 28.30 m Reference H..............: 911.34 HCNT Reference Dip............: 46.04 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-).........: 676113.70 m Magnetic dec (+E/W-).....: -6.34 degrees Departure (+E/W-)........: 3633875.95 m Grid convergence (+E/W-).: 1.02 degrees Total az corr (+E/W-)....: -7.36 degrees Azimuth from Vsect Origin to target: 0.00 degrees (Total az corr = magnetic dec - grid conv) Survey Correction Type ...: I=Sag Corrected Inclination M=Schlumberger Magnetic Correction S=Shell Magnetic Correction F=Failed Axis Correction R=Magnetic Resonance Tool Correction D=Dmag Magnetic Correction [(c)2009 IDEAL ID14_0C_02] SCHLUMBERGER Survey Report 7-Sep-2009 10:00:34 Page 2 of 2 === ======== ====== ======= ====== ======== ======== ================ =============== ===== ===== ====== 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 Corr - (m) (deg) (deg) (m) (m) (m) (m) (m) (m) (deg) 10m) type (deg) === ======== ====== ======= ====== ======== ======== ================ =============== ===== ===== ====== 1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 TIP None 2 4079.39 0.54 294.42 4079.39 4079.33 7.95 7.95 -17.50 19.22 294.42 0.00 PUP None 3 4102.59 0.51 213.21 23.20 4102.53 7.91 7.91 -17.66 19.35 294.12 0.29 PUP None 4 4137.55 0.26 226.89 34.96 4137.49 7.72 7.72 -17.80 19.41 293.45 0.08 PUP None 5 4175.44 0.39 246.24 37.89 4175.38 7.61 7.61 -17.98 19.53 292.94 0.04 PUP None 6 4212.97 0.62 253.00 37.53 4212.91 7.50 7.50 -18.29 19.77 292.29 0.06 PUP None 7 4251.78 0.78 253.34 38.81 4251.71 7.36 7.36 -18.75 20.14 291.44 0.04 PUP None 8 4290.42 1.01 259.60 38.64 4290.35 7.23 7.23 -19.34 20.64 290.49 0.06 PUP None 9 4340.43 1.11 259.47 50.01 4340.35 7.06 7.06 -20.25 21.44 289.22 0.02 PUP None 10 4367.84 1.00 261.29 27.41 4367.75 6.97 6.97 -20.74 21.88 288.58 0.04 PUP None 11 4405.02 0.98 265.19 37.18 4404.93 6.90 6.90 -21.38 22.47 287.88 0.02 PUP None 12 4443.13 1.14 266.27 38.11 4443.03 6.85 6.85 -22.08 23.12 287.22 0.04 PUP None 13 4481.42 1.14 268.23 38.29 4481.32 6.81 6.81 -22.84 23.84 286.60 0.01 PUP None 14 4519.56 1.01 273.90 38.14 4519.45 6.82 6.82 -23.56 24.53 286.15 0.04 PUP None 15 4557.52 1.03 280.07 37.96 4557.40 6.90 6.90 -24.23 25.19 285.90 0.03 PUP None 16 4594.79 0.91 278.38 37.27 4594.67 7.00 7.00 -24.85 25.82 285.74 0.03 PUP None 17 4631.40 0.75 281.72 36.61 4631.27 7.10 7.10 -25.37 26.35 285.62 0.05 PUP None 18 4672.87 0.58 278.35 41.48 4672.75 7.18 7.18 -25.85 26.83 285.53 0.04 PUP None 19 4710.20 0.57 275.64 37.32 4710.07 7.23 7.23 -26.22 27.20 285.41 0.01 PUP None 20 4748.16 0.42 272.83 37.96 4748.03 7.25 7.25 -26.55 27.52 285.28 0.04 PUP None 21 4786.66 0.33 276.45 38.50 4786.53 7.27 7.27 -26.80 27.77 285.18 0.02 PUP None 22 4825.20 0.29 250.22 38.54 4825.07 7.25 7.25 -27.00 27.96 285.03 0.04 PUP None 23 4863.49 0.35 252.51 38.29 4863.36 7.18 7.18 -27.20 28.13 284.79 0.02 PUP None 24 4901.53 0.49 276.69 38.04 4901.39 7.17 7.17 -27.47 28.39 284.62 0.06 PUP None 25 4939.87 0.46 281.68 38.34 4939.73 7.22 7.22 -27.79 28.71 284.56 0.01 PUP None 26 4977.89 0.50 262.71 38.03 4977.76 7.23 7.23 -28.10 29.02 284.42 0.04 PUP None 27 5021.19 0.51 240.60 43.29 5021.05 7.11 7.11 -28.46 29.33 284.03 0.04 PUP None 28 5030.12 0.51 240.60 8.93 5029.98 7.07 7.07 -28.53 29.39 283.92 0.00 MWD_M None [(c)2009 IDEAL ID14_0C_02]