16/1-1
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General information
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Wellbore history
GeneralWell 16/1-1 is located roughly midway between the Gudrun Discovery and the Balder Field in the North Sea. This early wildcat well had the general objective to: " -test the hydrocarbon potential and investigate the lithology in this portion of the North Sea basin".The well is Type Well for the Utsira Formation.Operations and resultsWildcat well 16/1-1 was spudded with the semi-submersible installation Ocean Traveler on 26 September 1967 and drilled to TD at 3203 m in the Late Cretaceous Hod Formation. No significant problems were reported from the operations. Initial drilling from the sea floor to 392 m was with seawater and gel without casing. Returns were to the sea floor. Below 392 m to total depth, a seawater slurry with Bentonite, Zeogel, Spersene, XP-20, Caustic Soda, and 0-12% diesel oil was used.Porous sandstone was observed in the Miocene, Oligocene, and Eocene. There were also Paleocene sands in the well. Traces of possible residual oil stain were encountered in cuttings and cores from the Oligocene and Eocene. In addition, questionable shows (non-fluorescent dead oil) were reported on cores from the Paleocene. However, neither the hot wire gas indicator nor chromatograph suggested the presence of hydrocarbons.A total of 18 cores were cut from the different formations within the Hordaland, Rogaland, and Shetland Groups, recovering a total of 171 m core. The depth for core 2 is probably incorrect, possibly be five meter shallow due to malfunction of the bumper subs. FIT wire line fluid samples were taken in potential hydrocarbon-yielding beds at 1878.5 m, 2532.9 m, and at 2592.3 m. Only water and mud were recovered.The well was permanently abandoned on 10 December 1967 as a dry well.TestingNo drill stem test was performed. -
Cores at the Norwegian Offshore Directorate
Cores at the Norwegian Offshore Directorate Core sample numberCore sample - top depthCore sample - bottom depthCore sample depth - uom15100.05130.0[ft ]25643.05673.0[ft ]36315.06349.0[ft ]47060.07103.0[ft ]57353.07407.0[ft ]67609.07639.0[ft ]77639.07692.0[ft ]87692.07701.0[ft ]107932.07959.0[ft ]117962.07992.0[ft ]127992.08022.0[ft ]138305.08332.0[ft ]148619.08646.0[ft ]158680.08690.0[ft ]168699.08760.0[ft ]178934.08975.0[ft ]1810479.010509.0[ft ]Cores at the Norwegian Offshore Directorate Total core sample length [m]172.5Cores at the Norwegian Offshore Directorate Cores available for sampling?NO -
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 typeCONDUCTOR30174.036175.00.00LOTSURF.COND.20387.026390.00.00LOTINTERM.9 5/81400.012 1/41401.00.00LOTOPEN HOLE3203.08 1/23203.00.00LOT -
Logs
Logs Log typeLog top depth [m]Log bottom depth [m]CDM14013205FDC14013207GR BHC1373203IES3883206MLL3883206SNP14012593 -
Lithostratigraphy
Lithostratigraphy Top depth [mMD RKB]Lithostrat. unit14064477590890811271222125418541942220722072259231623552361240226462734273427632926 -
Composite logs
Composite logs Document nameDocument formatDocument size [MB]pdf0.55 -
Geochemical information
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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]pdf5.96pdf1.74 -
Documents – Norwegian Offshore Directorate papers
Documents – Norwegian Offshore Directorate papers Document nameDocument formatDocument size [MB]pdf12.73pdf89.24 -
Drilling mud
Drilling mud Depth MD [m]Mud weight [g/cm3]Visc. [mPa.s]Yield point [Pa]Mud typeDate measured3910.00seawater10000.00bent/Zeo/sp -
Palynological slides at the Norwegian Offshore Directorate
Palynological slides at the Norwegian Offshore Directorate Sample depthDepth unitSample typeLaboratory1.0[ft]C1554.0[m]CBGS1559.0[m]CBGS1563.0[m]CBGS1720.0[m]CBGS1729.0[m]CBGS2152.5[m]CBGS2161.5[m]CBGS2165.0[m]CBGS2329.0[m]CBGS2344.0[m]CSTAT2427.0[m]CBGS2656.0[m]CBGS2727.0[m]CBGS2728.0[m]CBGS2980.0[ft]C3100.0[ft]C3280.0[ft]C3400.0[ft]C3490.0[ft]C3580.0[ft]C3700.0[ft]C3700.0[ft]C3790.0[ft]C3910.0[ft]C4000.0[ft]C4090.0[ft]C4180.0[ft]C4300.0[ft]C4390.0[ft]C4480.0[ft]C4580.0[ft]C4690.0[ft]C4710.0[ft]C4790.0[ft]C4820.0[ft]C4880.0[ft]C4900.0[ft]C4980.0[ft]C5000.0[ft]C5080.0[ft]C5100.0[ft]C5100.0[ft]C5110.0[ft]C5180.0[ft]C5180.0[ft]C5270.0[ft]C5300.0[ft]C5390.0[ft]C5480.0[ft]C5570.0[ft]C5643.0[ft]C5643.0[ft]C5645.0[ft]C5657.0[ft]C5672.0[ft]C5673.0[ft]C5790.0[ft]C5840.0[ft]C5880.0[ft]C5900.0[ft]C5940.0[ft]C5980.0[ft]C6000.0[ft]C6080.0[ft]C6100.0[ft]C6190.0[ft]C6190.0[ft]C6280.0[ft]C6300.0[ft]C6315.0[ft]C6345.0[ft]C6375.0[ft]C6480.0[ft]C6500.0[ft]C6580.0[ft]C6600.0[ft]C6680.0[ft]C6700.0[ft]C6780.0[ft]C6800.0[ft]C6890.0[ft]C6900.0[ft]C6985.0[ft]C7000.0[ft]C7060.0[ft]C7062.0[ft]C7065.0[ft]C7065.0[ft]C7066.0[ft]C7067.0[ft]C7072.0[ft]C7078.0[ft]C7084.0[ft]C7087.0[ft]C7092.0[ft]C7094.0[ft]C7096.0[ft]C7099.0[ft]C7100.0[ft]C7102.0[ft]C7103.0[ft]C7103.0[ft]C7150.0[ft]CEXXON7190.0[ft]C7200.0[ft]C7240.0[ft]CEXXON7290.0[ft]C7300.0[ft]C7353.0[ft]C7353.0[ft]C7382.0[ft]C7387.0[ft]CEXXON7405.0[ft]CEXXON7450.0[ft]C7480.0[ft]C7490.0[ft]C7500.0[ft]C7520.0[ft]DC7550.0[ft]DC7580.0[ft]DC7600.0[ft]DC7609.0[ft]C7609.0[ft]C7615.0[ft]C7617.0[ft]C7620.0[ft]DC7639.0[ft]CEXXON7639.0[ft]DC7644.0[ft]DC7645.0[ft]DC7692.0[ft]CEXXON7696.0[ft]DC7746.0[ft]DCEXXON7790.0[ft]DC7800.0[ft]DC7850.0[ft]DC7880.0[ft]DC7900.0[ft]DC7945.0[ft]DC7963.5[ft]DC7969.5[ft]DC7980.0[ft]DC8011.0[ft]DC8060.0[ft]DCEXXON8100.0[ft]DC8150.0[ft]DCEXXON8200.0[ft]DC8250.0[ft]DCEXXON8290.0[ft]DC8305.0[ft]DC8323.0[ft]CEXXON8340.0[ft]DC8380.0[ft]DCEXXON8380.0[ft]DC8400.0[ft]DC8450.0[ft]DC8500.0[ft]DC8520.0[ft]SWCEXXON8550.0[ft]DCEXXON8558.0[ft]SWCEXXON8560.0[ft]DCEXXON8563.0[ft]SWCEXXON8595.0[ft]SWCEXXON8619.0[ft]DC8620.0[ft]CEXXON8622.0[ft]DC8627.0[ft]DC8630.0[ft]DC8632.0[ft]C8632.0[ft]DC8632.0[ft]SWCEXXON8634.0[ft]DC8641.0[ft]DC8644.0[ft]DC8645.0[ft]SWCEXXON8675.0[ft]SWCEXXON8675.0[ft]SWCEXXON8680.0[ft]CEXXON8680.0[ft]DC8680.0[ft]DC8682.0[ft]DC8685.0[ft]SWCEXXON8700.0[ft]CEXXON8730.0[ft]SWCEXXON8778.0[ft]SWCEXXON8780.0[ft]DCEXXON8820.0[ft]DCEXXON8835.0[ft]SWCEXXON8855.0[ft]SWCEXXON8870.0[ft]DCEXXON8875.0[ft]SWCEXXON8905.0[ft]SWCEXXON8915.0[ft]SWCEXXON8925.0[ft]DC8934.0[ft]C8934.0[ft]DC8940.0[ft]DC8941.0[ft]DC8941.0[ft]C8954.0[ft]C8957.0[ft]C8962.0[ft]SWCEXXON8983.0[ft]SWCEXXON9000.0[ft]DC9005.0[ft]SWCEXXON9035.0[ft]SWCEXXON9050.0[ft]DC9100.0[ft]DCEXXON9100.0[ft]DC9150.0[ft]DCEXXON9200.0[ft]DCEXXON9250.0[ft]DCEXXON9300.0[ft]DCEXXON9810.0[ft]DC10060.0[ft]DC10140.0[ft]DC10175.0[ft]DC10240.0[ft]DC10340.0[ft]DC10396.0[ft]DC10509.0[ft]DC10509.0[ft]DC -
Thin sections at the Norwegian Offshore Directorate
Thin sections at the Norwegian Offshore Directorate DepthUnit2250.00[m ]2250.00[m ]2250.00[m ]2250.00[m ]2251.00[m ]2251.00[m ]2251.00[m ]2251.00[m ]2251.00[m ]2251.00[m ]2251.00[m ]2251.00[m ]2251.00[m ]