30/10-7
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General information
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Wellbore history
GeneralThe exploration well 30/10-7 was dedicated to explore the hydrocarbon potential of the Paleocene Hermod Formation.Well 30/10-7 is located in the central-northern part of block 30/10, and the Paleocene structure forms a moundy/domal feature, with minor normal faults to the east and west of the well location. TD was planned at 2613 m in the Late Cretaceous Hardråde Formation.Operations and resultsThe well 30/10-7 was spudded 8 September by the semi-submersible installation Maersk Jutlander and drilled to TD at 2612 m in the Late Cretaceous Hardråde Formation. The well was drilled with seawater and hi-vis pills down to 1270 m and with Gyp / Polymer mud from 1270 m to TD. The well encountered sands with very good reservoir characteristics both in the Hermod Formation and in the Heimdal Formation, but the reservoirs were water bearing. In the entire well bore no shows of any kind was observed. Two cores were cut from 2207 m to 2227 m and recovered sands and mudstone from the Hermod and Sele Formations. No fluid samples were taken.The well was permanently abandoned on 17 October 1992 as a dry hole.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]270.002612.00 -
Cores at the Norwegian Offshore Directorate
Cores at the Norwegian Offshore Directorate Core sample numberCore sample - top depthCore sample - bottom depthCore sample depth - uom12207.02211.0[m ]22211.02225.4[m ]Cores at the Norwegian Offshore Directorate Total core sample length [m]18.4Cores at the Norwegian Offshore Directorate Cores available for sampling?YES -
Core photos
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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 typeCONDUCTOR30201.036202.00.00LOTINTERM.13 3/81254.017 1/21256.01.46LOTINTERM.9 5/82171.712 1/42173.01.58LOTOPEN HOLE2612.08 1/22612.00.00LOT -
Logs
Logs Log typeLog top depth [m]Log bottom depth [m]AMS NGS CNL LDL21702594CBL VDL GR CCL11002171CST21872567CST GR19852135DIL BHC MSFL GR AMS21702595GR AMS SHDT12522136GR SP SFL DIL LDL CAL12522140MWD - RGDM3001270MWD - RGDM12702182MWD - RGDM21822612MWD - RGDM DR GR DIR129300RPQS RFT GR AMS21852572SHDT GR AMS21702594VSP10002580 -
Lithostratigraphy
Lithostratigraphy Top depth [mMD RKB]Lithostrat. unit1293841075212521252127212921662183218621912193220222122218223222362244227523302338236523712374238623922398243024362565257425802580 -
Composite logs
Composite logs Document nameDocument formatDocument size [MB]pdf0.33 -
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]pdf32.15 -
Drilling mud
Drilling mud Depth MD [m]Mud weight [g/cm3]Visc. [mPa.s]Yield point [Pa]Mud typeDate measured1601.02WATER BASED3001.02WATER BASED4331.0522.0WATER BASED5051.02WATER BASED5401.0514.0WATER BASED6581.05WATER BASED8001.02WATER BASED8091.0522.0WATER BASED8801.0714.0WATER BASED11801.0811.0WATER BASED12501.1012.0WATER BASED12701.1011.0WATER BASED15701.2521.0WATER BASED17611.3123.0WATER BASED18681.3217.0WATER BASED19501.3119.0WATER BASED21431.3119.0WATER BASED21821.3217.0WATER BASED21991.1416.0WATER BASED22111.1415.0WATER BASED22351.1416.0WATER BASED26121.1518.0WATER BASED