6710/10-1
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General information
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Wellbore history
GeneralWell 6710/10-1 was the first well in the Nordland VI area, an area with unique nature and environmental qualities. Nordland VI was opened for exploration after a comprehensive environmental impact assessment in 1994. The main objective of well 6710/10-1 was to test the reservoir potential and the hydrocarbon type in Tang Formation sandstones of the Hedda prospect. The Hedda prospect is a domal feature developed on a left lateral wrench fault on the Bivrost Lineament.Operations and resultsWildcat well 6710/10-1 was spudded with the drill ship "West Navion" on 5 October 2000 and drilled to a total depth of 2267 m into rocks of the Late Cretaceous Springar Formation. No shallow gas was observed by the ROV at the wellhead, nor was any shallow gas indicated on MWD logs. Drilling went without major problems. The well was drilled with seawater and bentonite sweeps down to 840 m and with "Glydril" mud (5% glycol) from 840 m to TD. Good reservoir zones were recorded in the Tang Formation sandstones. The sand sequences in the Tang Formation proved to be water bearing; this was verified by the lack of shows, interpretation of logs and MDT pressure measurements. Carbonate cemented sand layers with a low saturation of hydrocarbons, but with poor reservoir potential, were penetrated in the lower part of the Springar Formation. Two cores were cut in the Tang Formation sandstones. No fluid samples were taken. The well was permanently abandoned as a dry well on 26 October 2000.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]843.002267.00 -
Cores at the Norwegian Offshore Directorate
Cores at the Norwegian Offshore Directorate Core sample numberCore sample - top depthCore sample - bottom depthCore sample depth - uom11095.01111.8[m ]21456.01462.0[m ]Cores at the Norwegian Offshore Directorate Total core sample length [m]22.8Cores at the Norwegian Offshore Directorate Cores available for sampling?YES -
Core photos
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Lithostratigraphy
Lithostratigraphy Top depth [mMD RKB]Lithostrat. unit36536582882892692699819711971 -
Composite logs
Composite logs Document nameDocument formatDocument size [MB]pdf0.39 -
Geochemical information
Geochemical information Document nameDocument formatDocument size [MB]pdf1.87 -
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].PDF20.23 -
Logs
Logs Log typeLog top depth [m]Log bottom depth [m]ASI GR7682250CST GR8422254MDT GR11282198MWD - DIR430840MWD - MPR LITE430840MWD - MPR LITE8402267PEX HALS DSI HNGS3652268VSP7682250 -
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 typeCONDUCTOR30428.036428.00.00LOTINTERM.13 3/8834.017 1/2834.01.65LOTOPEN HOLE1095.012 1/41095.00.00LOTOPEN HOLE2267.08 1/22267.00.00LOT -
Drilling mud
Drilling mud Depth MD [m]Mud weight [g/cm3]Visc. [mPa.s]Yield point [Pa]Mud typeDate measured4701.03SEAWATER/BENT.8401.2510.0GLYDRILL9961.2512.0GLYDRILL10551.2510.0GLYDRILL11121.2513.0GLYDRILL14001.2513.0GLYDRILL14561.2512.0GLYDRILL16871.26DUMMY20471.2712.0GLYDRILL22671.2712.0GLYDRILL -
Pressure plots
Pressure plots The pore pressure data is sourced from well logs if no other source is specified. In some wells where pore pressure logs do not exist, information from Drill stem tests and kicks have been used. The data has been reported to the NPD, and further processed and quality controlled by IHS Markit.Pressure plots Document nameDocument formatDocument size [MB]PDF0.35