VELOCITY SURVEY CLIENT Bass Strait Oil Company WELL MOBY-1 AREA Offshore Australia CONTRACTOR BAKER ATLAS SURVEY DATE 13-10-04 SURVEY UNITS M DATUM ELEVATION 0.00 M ABOVE SEA LEVEL KB ELEVATION 22.00 M ABOVE SEA LEVEL RCVR REF. ELEVATION 22.00 M ABOVE DATUM REF WELL ELEVATION 22.00 M ABOVE DATUM REF DATUM CORRECT. VELOCITY 1500.00 M /SEC SOURCE TYPE SLEEVE GUN GEOPHONE TYPE AWS 1300 GM SAMPLE RATE 1.00 MSEC WELL CASING Bass Strait Oil Company WELL : MOBY-1 SOURCE / RECEIVER GEOMETRY TABLE RECEIVER REFERENCE ELEVATION = 22.00 M ABOVE DATUM REF. SOURCE / RECEIVER COORDINATES ARE REFERENCED TO WELLHEAD SOURCE / RECEIVER (S-R) OFFSET IS PLAN VIEW ---------- RECEIVER ---------- --------- SOURCE -------------- OFFSET MEASURED VERT. X Y ELEV DEPTH X Y (S-R) DEPTH DEPTH COORD. COORD. COORD. COORD. (DGM) (ES) (DS) (M ) (M ) (M ) (M ) (M ) (M ) (M ) (M ) (M ) 90.0 90.0 0.0 0.0 0.0 5.0 -11.0 -45.0 46.3 100.0 100.0 0.0 0.0 0.0 5.0 -11.0 -45.0 46.3 110.0 110.0 0.0 0.0 0.0 5.0 -11.0 -45.0 46.3 120.0 120.0 0.0 0.0 0.0 5.0 -11.0 -45.0 46.3 130.0 130.0 0.0 0.0 0.0 5.0 -11.0 -45.0 46.3 140.0 140.0 0.0 0.0 0.0 5.0 -11.0 -45.0 46.3 150.0 150.0 0.0 0.0 0.0 5.0 -11.0 -45.0 46.3 160.0 160.0 0.0 0.0 0.0 5.0 -11.0 -45.0 46.3 170.0 170.0 0.0 0.0 0.0 5.0 -11.0 -45.0 46.3 180.0 180.0 0.0 0.0 0.0 5.0 -11.0 -45.0 46.3 190.0 190.0 0.0 0.0 0.0 5.0 -11.0 -45.0 46.3 200.0 200.0 0.0 0.0 0.0 5.0 -11.0 -45.0 46.3 210.0 210.0 0.0 0.0 0.0 5.0 -11.0 -45.0 46.3 220.0 220.0 0.0 0.0 0.0 5.0 -11.0 -45.0 46.3 230.0 230.0 0.0 0.0 0.0 5.0 -11.0 -45.0 46.3 240.0 240.0 0.0 0.0 0.0 5.0 -11.0 -45.0 46.3 250.0 250.0 0.0 0.0 0.0 5.0 -11.0 -45.0 46.3 260.0 260.0 0.0 0.0 0.0 5.0 -11.0 -45.0 46.3 270.0 270.0 0.0 0.0 0.0 5.0 -11.0 -45.0 46.3 280.0 280.0 0.0 0.0 0.0 5.0 -11.0 -45.0 46.3 290.0 290.0 0.0 0.0 0.0 5.0 -11.0 -45.0 46.3 300.0 300.0 0.0 0.0 0.0 5.0 -11.0 -45.0 46.3 310.0 310.0 0.0 0.0 0.0 5.0 -11.0 -45.0 46.3 320.0 320.0 0.0 0.0 0.0 5.0 -11.0 -45.0 46.3 330.0 330.0 0.0 0.0 0.0 5.0 -11.0 -45.0 46.3 340.0 340.0 0.0 0.0 0.0 5.0 -11.0 -45.0 46.3 350.0 350.0 0.0 0.0 0.0 5.0 -11.0 -45.0 46.3 360.0 360.0 0.0 0.0 0.0 5.0 -11.0 -45.0 46.3 370.0 370.0 0.0 0.0 0.0 5.0 -11.0 -45.0 46.3 380.0 380.0 0.0 0.0 0.0 5.0 -11.0 -45.0 46.3 390.0 390.0 0.0 0.0 0.0 5.0 -11.0 -45.0 46.3 400.0 400.0 0.0 0.0 0.0 5.0 -11.0 -45.0 46.3 410.0 410.0 0.0 0.0 0.0 5.0 -11.0 -45.0 46.3 420.0 420.0 0.0 0.0 0.0 5.0 -11.0 -45.0 46.3 430.0 430.0 0.0 0.0 0.0 5.0 -11.0 -45.0 46.3 440.0 440.0 0.0 0.0 0.0 5.0 -11.0 -45.0 46.3 450.0 450.0 0.0 0.0 0.0 5.0 -11.0 -45.0 46.3 460.0 460.0 0.0 0.0 0.0 5.0 -11.0 -45.0 46.3 470.0 470.0 0.0 0.0 0.0 5.0 -11.0 -45.0 46.3 480.0 480.0 0.0 0.0 0.0 5.0 -11.0 -45.0 46.3 490.0 490.0 0.0 0.0 0.0 5.0 -11.0 -45.0 46.3 500.0 500.0 0.0 0.0 0.0 5.0 -11.0 -45.0 46.3 510.0 510.0 0.0 0.0 0.0 5.0 -11.0 -45.0 46.3 520.0 520.0 0.0 0.0 0.0 5.0 -11.0 -45.0 46.3 530.0 530.0 0.0 0.0 0.0 5.0 -11.0 -45.0 46.3 540.0 540.0 0.0 0.0 0.0 5.0 -11.0 -45.0 46.3 550.0 550.0 0.0 0.0 0.0 5.0 -11.0 -45.0 46.3 560.0 560.0 0.0 0.0 0.0 5.0 -11.0 -45.0 46.3 570.0 570.0 0.0 0.0 0.0 5.0 -11.0 -45.0 46.3 580.0 580.0 0.0 0.0 0.0 5.0 -11.0 -45.0 46.3 590.0 590.0 0.0 0.0 0.0 5.0 -11.0 -45.0 46.3 600.0 600.0 0.0 0.0 0.0 5.0 -11.0 -45.0 46.3 610.0 610.0 0.0 0.0 0.0 5.0 -11.0 -45.0 46.3 620.0 620.0 0.0 0.0 0.0 5.0 -11.0 -45.0 46.3 630.0 630.0 0.0 0.0 0.0 5.0 -11.0 -45.0 46.3 640.0 640.0 0.0 0.0 0.0 5.0 -11.0 -45.0 46.3 650.0 650.0 0.0 0.0 0.0 5.0 -11.0 -45.0 46.3 Bass Strait Oil Company WELL : MOBY-1 TIME / DEPTH INFORMATION TABLE ALL TIMES ARE ONE-WAY TIMES * = NOT USED IN VELOCITY COMPUTATIONS DATUM ELEVATION 0.00 M ABOVE SEA LEVEL DATUM CORRECT. VELOCITY 1500.00 M /SEC MEASURED RAW SRC-REC COS(I) TIME CORRECTION VERTICAL GEOPHONE TIME DIST. TIME DEPTH PICK PLAN-VIEW COS DATUM (DGM) (SRC_REC) (TGD) (M ) (MS) (M ) (MS) (MS) (MS) 90.0 47.9 46.3 0.806 -9.3 3.3 41.9 100.0 53.0 46.3 0.844 -8.2 3.3 48.1 110.0 58.1 46.3 0.873 -7.4 3.3 54.1 120.0 63.2 46.3 0.895 -6.6 3.3 59.9 130.0 67.9 46.3 0.912 -6.0 3.3 65.2 140.0 73.1 46.3 0.925 -5.5 3.3 70.9 150.0 78.1 46.3 0.936 -5.0 3.3 76.5 160.0 83.0 46.3 0.944 -4.6 3.3 81.8 170.0 87.7 46.3 0.951 -4.3 3.3 86.8 180.0 92.7 46.3 0.957 -4.0 3.3 92.0 190.0 97.4 46.3 0.962 -3.7 3.3 97.0 200.0 101.9 46.3 0.966 -3.5 3.3 101.8 210.0 106.7 46.3 0.969 -3.3 3.3 106.8 220.0 111.8 46.3 0.972 -3.1 3.3 112.1 230.0 117.0 46.3 0.975 -2.9 3.3 117.4 240.0 122.0 46.3 0.977 -2.8 3.3 122.6 250.0 127.1 46.3 0.979 -2.7 3.3 127.8 260.0 132.4 46.3 0.981 -2.5 3.3 133.2 270.0 137.3 46.3 0.982 -2.4 3.3 138.2 280.0 142.4 46.3 0.984 -2.3 3.3 143.4 290.0 147.4 46.3 0.985 -2.2 3.3 148.5 300.0 152.5 46.3 0.986 -2.1 3.3 153.7 310.0 157.8 46.3 0.987 -2.1 3.3 159.0 320.0 162.8 46.3 0.988 -2.0 3.3 164.2 330.0 167.8 46.3 0.989 -1.9 3.3 169.2 340.0 172.8 46.3 0.989 -1.9 3.3 174.2 350.0 177.5 46.3 0.990 -1.8 3.3 179.0 360.0 182.3 46.3 0.990 -1.7 3.3 183.9 370.0 187.2 46.3 0.991 -1.7 3.3 188.8 380.0 192.2 46.3 0.992 -1.6 3.3 193.9 390.0 197.1 46.3 0.992 -1.6 3.3 198.8 400.0 201.8 46.3 0.992 -1.5 3.3 203.6 410.0 206.6 46.3 0.993 -1.5 3.3 208.4 420.0 211.2 46.3 0.993 -1.5 3.3 213.0 430.0 215.6 46.3 0.993 -1.4 3.3 217.6 440.0 220.3 46.3 0.994 -1.4 3.3 222.3 450.0 225.2 46.3 0.994 -1.3 3.3 227.2 460.0 230.1 46.3 0.994 -1.3 3.3 232.1 470.0 234.7 46.3 0.995 -1.3 3.3 236.8 480.0 239.4 46.3 0.995 -1.2 3.3 241.5 490.0 244.2 46.3 0.995 -1.2 3.3 246.3 500.0 249.0 46.3 0.995 -1.2 3.3 251.2 510.0 254.1 46.3 0.995 -1.2 3.3 256.3 520.0 259.2 46.3 0.996 -1.1 3.3 261.4 530.0 264.3 46.3 0.996 -1.1 3.3 266.5 540.0 269.3 46.3 0.996 -1.1 3.3 271.6 550.0 274.3 46.3 0.996 -1.1 3.3 276.6 560.0 279.4 46.3 0.996 -1.0 3.3 281.7 570.0 284.5 46.3 0.996 -1.0 3.3 286.8 580.0 289.2 46.3 0.997 -1.0 3.3 291.6 590.0 294.0 46.3 0.997 -1.0 3.3 296.3 600.0 298.2 46.3 0.997 -1.0 3.3 300.6 610.0 302.0 46.3 0.997 -0.9 3.3 304.4 620.0 306.0 46.3 0.997 -0.9 3.3 308.4 630.0 310.2 46.3 0.997 -0.9 3.3 312.6 640.0 314.5 46.3 0.997 -0.9 3.3 316.9 650.0 318.8 46.3 0.997 -0.9 3.3 321.3 Bass Strait Oil Company WELL : MOBY-1 VELOCITY TABLE RECEIVER REFERENCE ELEVATION = 22.00 M ABOVE DATUM REF. DATUM ELEVATION 0.00 M ABOVE SEA LEVEL DATUM CORRECT. VELOCITY 1500.00 M /SEC MEASURED DEPTH TIME AVERAGE RMS INTERVAL INTERVAL INTERVAL GEOPHONE CORR. CORR. VELOCITY VELOCITY DEPTH TIME VELOCITY DEPTH TO TO DATUM DATUM (DGM) (DGD) (TGD) (DELDGD) (DELDGT) (M ) (M ) (MS) (M /SEC) (M /SEC) (M ) (MS) (M /SEC) 68.0 41.9 1623.0 90.0 68.0 41.9 1623.0 1623.0 -------------------------- 10.0 6.2 1615.1 100.0 78.0 48.1 1622.0 1622.0 -------------------------- 10.0 6.0 1659.8 110.0 88.0 54.1 1626.2 1626.3 -------------------------- 10.0 5.8 1716.2 120.0 98.0 59.9 1635.0 1635.2 -------------------------- 10.0 5.3 1888.4 130.0 108.0 65.2 1655.5 1657.2 -------------------------- 10.0 5.7 1753.9 140.0 118.0 70.9 1663.4 1665.2 -------------------------- 10.0 5.5 1811.9 150.0 128.0 76.5 1674.2 1676.2 -------------------------- 10.0 5.3 1885.1 160.0 138.0 81.8 1687.8 1690.5 -------------------------- 10.0 5.0 1991.6 170.0 148.0 86.8 1705.4 1709.4 -------------------------- 10.0 5.2 1905.8 180.0 158.0 92.0 1716.8 1721.2 -------------------------- 10.0 5.0 2005.5 190.0 168.0 97.0 1731.7 1737.0 -------------------------- 10.0 4.8 2101.4 200.0 178.0 101.8 1749.0 1755.7 -------------------------- 10.0 5.0 1988.5 210.0 188.0 106.8 1760.2 1767.3 -------------------------- 10.0 5.3 1895.1 220.0 198.0 112.1 1766.6 1773.6 -------------------------- 10.0 5.3 1880.6 230.0 208.0 117.4 1771.8 1778.5 -------------------------- 10.0 5.2 1938.2 240.0 218.0 122.6 1778.8 1785.6 -------------------------- 10.0 5.2 1911.3 250.0 228.0 127.8 1784.2 1790.9 -------------------------- 10.0 5.4 1854.3 260.0 238.0 133.2 1787.0 1793.5 -------------------------- 10.0 5.0 1990.1 270.0 248.0 138.2 1794.4 1801.0 -------------------------- 10.0 5.2 1927.5 280.0 258.0 143.4 1799.2 1805.7 -------------------------- 10.0 5.1 1968.6 290.0 268.0 148.5 1805.0 1811.6 -------------------------- 10.0 5.2 1917.3 300.0 278.0 153.7 1808.8 1815.3 -------------------------- 10.0 5.3 1874.3 310.0 288.0 159.0 1811.0 1817.3 -------------------------- 10.0 5.1 1943.6 320.0 298.0 164.2 1815.2 1821.4 -------------------------- 10.0 5.0 1982.2 330.0 308.0 169.2 1820.2 1826.4 -------------------------- 10.0 5.0 1995.9 340.0 318.0 174.2 1825.2 1831.5 -------------------------- 10.0 4.8 2081.7 350.0 328.0 179.0 1832.1 1838.6 -------------------------- 10.0 4.9 2055.9 360.0 338.0 183.9 1838.0 1844.7 -------------------------- 10.0 4.9 2032.3 370.0 348.0 188.8 1843.1 1849.8 -------------------------- 10.0 5.1 1972.7 380.0 358.0 193.9 1846.5 1853.1 -------------------------- 10.0 4.9 2025.6 390.0 368.0 198.8 1850.9 1857.6 -------------------------- 10.0 4.8 2076.8 400.0 378.0 203.6 1856.3 1863.1 -------------------------- 10.0 4.8 2088.8 410.0 388.0 208.4 1861.6 1868.6 -------------------------- 10.0 4.6 2161.4 420.0 398.0 213.0 1868.1 1875.4 -------------------------- 10.0 4.5 2214.6 430.0 408.0 217.6 1875.3 1883.1 -------------------------- 10.0 4.7 2116.3 440.0 418.0 222.3 1880.4 1888.3 -------------------------- 10.0 4.9 2023.4 450.0 428.0 227.2 1883.5 1891.4 -------------------------- 10.0 4.9 2050.5 460.0 438.0 232.1 1887.0 1894.9 -------------------------- 10.0 4.7 2141.5 470.0 448.0 236.8 1892.1 1900.0 -------------------------- 10.0 4.8 2101.8 480.0 458.0 241.5 1896.2 1904.2 -------------------------- 10.0 4.7 2106.1 490.0 468.0 246.3 1900.2 1908.3 -------------------------- 10.0 4.9 2045.6 500.0 478.0 251.2 1903.1 1911.1 -------------------------- 10.0 5.1 1966.4 510.0 488.0 256.3 1904.3 1912.2 -------------------------- 10.0 5.1 1951.6 520.0 498.0 261.4 1905.3 1913.0 -------------------------- 10.0 5.1 1963.9 530.0 508.0 266.5 1906.4 1914.0 -------------------------- 10.0 5.1 1966.5 540.0 518.0 271.6 1907.5 1915.0 -------------------------- 10.0 5.0 2003.3 550.0 528.0 276.6 1909.2 1916.6 -------------------------- 10.0 5.1 1960.6 560.0 538.0 281.7 1910.2 1917.4 -------------------------- 10.0 5.1 1957.5 570.0 548.0 286.8 1911.0 1918.1 -------------------------- 10.0 4.8 2078.4 580.0 558.0 291.6 1913.8 1920.9 -------------------------- 10.0 4.8 2102.6 590.0 568.0 296.3 1916.8 1923.9 -------------------------- 10.0 4.2 2355.2 600.0 578.0 300.6 1923.0 1930.7 -------------------------- 10.0 3.9 2595.8 610.0 588.0 304.4 1931.5 1940.5 -------------------------- 10.0 4.0 2513.5 620.0 598.0 308.4 1939.0 1949.0 -------------------------- 10.0 4.2 2376.3 630.0 608.0 312.6 1944.9 1955.4 -------------------------- 10.0 4.3 2308.0 640.0 618.0 316.9 1949.9 1960.6 -------------------------- 10.0 4.3 2307.0 650.0 628.0 321.3 1954.7 1965.7 --------------------------