35/10-3
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General information
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Wellbore history
GeneralProduction License 173, block 35/10, is located north-northwest of the Troll, approximately 80 km off-shore Western Norway. Well 35/10-3 is the third well drilled within the PL 173 licence area. The objective of the well was to test the hydrocarbon potential of Paleocene deep marine sandstones (Hermod Formation) of the Sele Formation in the southern part of block 35/10, known as the the Graben Fill prospect. The reservoir was expected to consist of two deep marine fans, stacked on each other.Operations and resultsWildcat well 35/10-3 was spudded 23 June 1999 with the semi-submersible installation "Transocean Arctic". First attempt to spud failed due to boulders at 427 m. The installation was moved 20 m and after a successful second spud it was drilled to a total depth of 2250 m in the Late Cretaceous Jorsalfare Formation. The well was drilled with bentonite/PAC down to 655 m and KCl polymer mud (Ultidrill) from 655 m to TD. No shallow gas was encountered. A class 2 warning (over-pressured shallow gas) was given for a sand layer prognosed at 675 m. The Hermod Formation was penetrated at 1948 m and consisted of 35 m sandstone, as prognosed. The sandstone was water filled. Weak direct fluorescence and a few grams with cut fluorescence and increase in heavy components in the background gas was described. The prognosed lower fan proved to consist of claystone. No conventional cores were cut and no fluid samples were taken.The well was permanently plugged and abandoned as a dry well on 14 July 1999.TestingNo drill stem test was performed -
Cuttings at the Norwegian Offshore Directorate
Cuttings at the Norwegian Offshore Directorate Cuttings available for sampling?YESCuttings at the Norwegian Offshore Directorate Cutting sample, top depth [m]Cutting samples, bottom depth [m]660.002250.00 -
Casing and leak–off tests
Casing and leak–off tests Casing typeCasing diam.
[inch]Casing depth
[m]Hole diam.
[inch]Hole depth
[m]LOT/FIT mud eqv.
[g/cm3]Formation test typeCONDUCTOR30459.036460.00.00LOTINTERM.20645.026645.01.27LOTINTERM.13 3/81807.017 1/21807.01.66LOTOPEN HOLE2250.012 1/42250.00.00LOT -
Logs
Logs Log typeLog top depth [m]Log bottom depth [m]FMT GR19501983HDIL MAC ZDL CND DSL TTRM18072248MWD - MPR18072250MWD - MPR-L4681818VSP GR11952170 -
Lithostratigraphy
Lithostratigraphy Top depth [mMD RKB]Lithostrat. unit3879229371247126918811881194819842030219321992199 -
Composite logs
Composite logs Document nameDocument formatDocument size [MB]pdf0.16 -
Documents – reported by the production licence (period for duty of secrecy expired)
Documents – reported by the production licence (period for duty of secrecy expired) Document nameDocument formatDocument size [MB].pdf1.60.pdf34.35 -
Drilling mud
Drilling mud Depth MD [m]Mud weight [g/cm3]Visc. [mPa.s]Yield point [Pa]Mud typeDate measured6551.03BENTONITE/FW12561.2117.0KCL/GLYCOL/PAC14941.21DUMMY16451.2521.0KCL/GLYCOL/PAC18181.3022.0KCL/GLYCOL/PAC19401.3731.0KCL/GLYCOL/PAC19501.3731.0KCL/GLYCOL/PAC19501.3731.0KCL/GLYCOL/PAC22501.3731.0KCL/GLYCOL/PAC -
Palynological slides at the Norwegian Offshore Directorate
Palynological slides at the Norwegian Offshore Directorate Sample depthDepth unitSample typeLaboratory660.0[m]DCRRI700.0[m]DCRRI720.0[m]DCRRI740.0[m]DCRRI760.0[m]DCRRI820.0[m]DCRRI840.0[m]DCRRI860.0[m]DCRRI880.0[m]DCRRI900.0[m]DCRRI920.0[m]DCRRI940.0[m]DCRRI960.0[m]DCRRI980.0[m]DCRRI1000.0[m]DCRRI1020.0[m]DCRRI1040.0[m]DCRRI1060.0[m]DCRRI1080.0[m]DCRRI1100.0[m]DCRRI1120.0[m]DCRRI1140.0[m]DCRRI1160.0[m]DCRRI1180.0[m]DCRRI1200.0[m]DCRRI1220.0[m]DCRRI1240.0[m]DCRRI1260.0[m]DCRRI1280.0[m]DCRRI1300.0[m]DCRRI1320.0[m]DCRRI1340.0[m]DCRRI1360.0[m]DCRRI1380.0[m]DCRRI1400.0[m]DCRRI1420.0[m]DCRRI1440.0[m]DCRRI1460.0[m]DCRRI1480.0[m]DCRRI1500.0[m]DCRRI1520.0[m]DCRRI1540.0[m]DCRRI1560.0[m]DCRRI1580.0[m]DCRRI1600.0[m]DCRRI1620.0[m]DCRRI1640.0[m]DCRRI1660.0[m]DCRRI1680.0[m]DCRRI1700.0[m]DCRRI1720.0[m]DCRRI1740.0[m]DCRRI1760.0[m]DCRRI1780.0[m]DCRRI1800.0[m]DCRRI1821.0[m]DCRRI1842.0[m]DCRRI1860.0[m]DCRRI1866.0[m]DCRRI1872.0[m]DCRRI1878.0[m]DCRRI1884.0[m]DCRRI1890.0[m]DCRRI1893.0[m]DCRRI1896.0[m]DCRRI1899.0[m]DCRRI1902.0[m]DCRRI1905.0[m]DCRRI1908.0[m]DCRRI1911.0[m]DCRRI1914.0[m]DCRRI1917.0[m]DCRRI1929.0[m]DCRRI1935.0[m]DCRRI1938.0[m]DCRRI1941.0[m]DCRRI1944.0[m]DCRRI1947.0[m]DCRRI1950.0[m]DCRRI1953.0[m]DCRRI1956.0[m]DCRRI1959.0[m]DCRRI1962.0[m]DCRRI1965.0[m]DCRRI1968.0[m]DCRRI1971.0[m]DCRRI1974.0[m]DCRRI1977.0[m]DCRRI1980.0[m]DCRRI1983.0[m]DCRRI1986.0[m]DCRRI1989.0[m]DCRRI1992.0[m]DCRRI1995.0[m]DCRRI1998.0[m]DCRRI2001.0[m]DCRRI2004.0[m]DCRRI2007.0[m]DCRRI2010.0[m]DCRRI2013.0[m]DCRRI2016.0[m]DCRRI2019.0[m]DCRRI2022.0[m]DCRRI2025.0[m]DCRRI2035.0[m]DCRRI2045.0[m]DCRRI2055.0[m]DCRRI2065.0[m]DCRRI2075.0[m]DCRRI2085.0[m]DCRRI2095.0[m]DCRRI2105.0[m]DCRRI2115.0[m]DCRRI2125.0[m]DCRRI2132.0[m]DCRRI2135.0[m]DCRRI2138.0[m]DCRRI2141.0[m]DCRRI2145.0[m]DCRRI2150.0[m]DCRRI2153.0[m]DCRRI2160.0[m]DCRRI2170.0[m]DCRRI2180.0[m]DCRRI2190.0[m]DCRRI2195.0[m]DCRRI2200.0[m]DCRRI2205.0[m]DCRRI2210.0[m]DCRRI2215.0[m]DCRRI2220.0[m]DCRRI2230.0[m]DCRRI2235.0[m]DCRRI2240.0[m]DCRRI2245.0[m]DCRRI2250.0[m]DCRRI