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WELL DATA SUMMARY SHEETS
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WELL: OTTO-1
Contents
Technical and administrative data
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Location
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Offshore
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Longitude
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04°11'22,91" E
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Latitude
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56°09'07,09" N
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UTM Zone
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31
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UTM Easting (x)
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573909.0 (m)
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UTM Northing (y)
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6223768.8 (m)
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Well block no.
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5604/25-2
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Reference point
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KB 112.0 ft above MSL
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Water depth
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-205.0 ft below MSL
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TD log
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9132.9 ft below reference point
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TD drill
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9121.1 ft below reference point
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The well is
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Vertical
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Field
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Svend
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Subfield
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Svend
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Structure
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North-Arne
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Spudded
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21/12-1981
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Completed
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20/03-1982
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Spud classification
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Exploration
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Status (completion)
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Plugged and abandoned
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License
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DUC Eneret 1962 A-SV
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Operator
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Chevron
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Contractor
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Dyvi Offshore
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Rig
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Dyvi Beta
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Casing
| top depth |
shoe depth |
diameter |
| ft. |
ft. |
inch |
inch (decim) |
| 310.0 |
420.0 |
42" |
42.000 |
| 310.0 |
1004.9 |
18 5/8" |
18.630 |
| 350.1 |
4003.9 |
13 3/8" |
13.380 |
| 1000.0 |
8503.9 |
9 5/8" |
9.630 |
Lithostratigraphy (Groups)
| Top | Bottom | Unit |
| ft. below ref. level | |
| 317.0
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8120.8
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Post Chalk Group
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| 8120.8
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8933.8
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Chalk Group
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| 8933.8
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8955.8
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Cromer Knoll Group
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| 8955.8
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9119.8
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Zechstein Group
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Chronostratigraphy (Periods)
| Top | Bottom | Unit |
| ft. below ref. level | |
| 205
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1687
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Quaternary
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| 1687
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8121
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Tertiary
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| 8121
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8956
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Cretaceous
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| 8956
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9120
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Permian
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Samples
Cores
| core | top | bottom | recovery |
| no. | ft. below ref. level | |
| 1 |
8115.0 |
8133.0 |
100.0 |
| 2 |
8133.0 |
8179.0 |
69.5 |
| 3 |
8179.0 |
8214.0 |
100.0 |
| 4 |
8214.0 |
8265.0 |
100.0 |
| 5 |
8265.0 |
8325.0 |
100.0 |
| 6 |
8325.0 |
8385.0 |
100.0 |
| 7 |
8385.0 |
8445.0 |
100.0 |
| 8 |
8445.0 |
8505.0 |
100.0 |
Cuttings
| from | to | distance |
| ft. below ref. level | bt cuttings |
| 390.0 |
5070.0 |
30.0 |
| 5070.0 |
5190.0 |
60.0 |
| 5190.0 |
6000.0 |
30.0 |
| 6000.0 |
7500.0 |
20.0 |
| 7500.0 |
8120.0 |
10.0 |
| 8120.0 |
8190.0 |
5.0 |
| 8190.0 |
8200.0 |
10.0 |
| 8200.0 |
8510.0 |
5.0 |
| 8510.0 |
9120.0 |
10.0 |
Sidewall cores
50 samples recovered from interval 4100.0 - 9070.0 ft. below reference level
Available well logs
Company: Chevron Petroleum Company Of Denmark
| File no. | |
| 984 |
Dipmeter - Dip and Azimuth Display (Selective Fitting), 4002.0-9067.0 ft, 1:200 |
| 985 |
Dipmeter - Dip and Azimuth Display (All Picks), 4001.0-9111.0 ft, 1:200 |
| 21136 |
Composite Log, 340.0-9132.0 ft - 1:1000 |
| 21137 |
Composite Log (enlarged section), 8100.0-8500.0 ft, 1:200 |
| 21138 |
Mud Log - Formation Evaluation Log, 317.0-9130.0 ft, 1:10000 |
| 21139 |
Drilling Data Pressure Log, 1000.0-9120.0 ft, 1:1500 |
| 21140 |
Temperature Log, 1000.0-9120.0 ft, 1:1500 |
| 21141 |
Pressure Data Log, 1005.0-9210.0 ft, 1:1500 |
Company: Schlumberger
| File no. | |
| 970 |
DLT-MSFL-GR, 3993.0-9130.0 ft, 1:200 |
| 971 |
DLT-MSFL-GR, 3993.0-9130.0 ft, 1:1000 |
| 972 |
DIL-BHC-GR, 3993.0-9125.0 ft, 1:200 |
| 973 |
DIL-BHC-GR, 3993.0-9125.0 ft, 1:1000 |
| 974 |
CBL-VDL-GR-CCL, 300.0-8324.0 ft, 1:200 |
| 975 |
CBL-VDL-GR-CCL, 1400.0-8478.0 ft, 1:200 |
| 976 |
FDC-CNL-GR, 3993.0-9130.0 ft, 1:200 |
| 977 |
FDC-CNL-GR, 3993.0-9130.0 ft, 1:1000 |
| 978 |
ISF-BHC-GR-SP, 317.0-4030.0 ft, 1:200 |
| 979 |
ISF-BHC-GR-SP, 317.0-4030.0 ft, 1:1000 |
| 981 |
HDT, 3993.0-9130.0 ft, 1:200 |
| 982 |
Cyberdip, 3993.0-9130.0 ft, 1:200 - 1:1000 |
| 983 |
Cyberlook, 8000.0-9000.0 ft, 1:200 |
| 986 |
Fracture Identification Log, 8100.0-8950.0 ft, 1:200 |
| 987 |
Production Log, 8080.0-8315.0 ft, 1:200 |
Company: Seismograph Service Ltd., England
| File no. | |
| 21142 |
Velocity Log , 1026.0-9115.0 ft, 1:1000 |
| 21143 |
Velocity Log , 1026.0-9115.0 ft, 1:500 |
| 21144 |
Velocity Survey and Calibrated Log Data, 600.0-9115.0 ft |
| 21145 |
Sonic Log - Display of Well Geophones Records, null-null ft |
Available well log tapes
GEUS
Tape no. |
| 30412 |
| CNL/FDC/BHC/IES/MSFL/GR/SP, 294.0-4038.0 ft, LIS format, Schlumberger |
| 51480 |
| HDT, 3985.0-9142.0 ft, LIS format, Schlumberger |
| 55275 |
| DLL/MSFL/GR-FDC/CNL/GR-DIL/BHC/GR/SP, 3815.0-9150.0 ft, LIS format, Schlumberger |
| 55276 |
| Well Velocity Survey Data, SEG-Y format |
Available reports
GEUS
File no. | Report |
| 1958 |
Chevron Petroleum Company of Denmark: Otto-1, Completion report, April 1982.
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| 1959 |
Exlog: Otto-1, Mudlogging - Final well report, January 1982.
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| 1960 |
Exploration and Production Services (North Sea) Ltd.: Otto-1, Production test no. 1 - Open hole test - Tested interval: 8504'-8805', February 1982.
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| 1961 |
Exploration and Production Services (North Sea) Ltd.: Otto-1, Production test no. 2 - Perforated interval: 8336'-8360', February 1982.
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| 1962 |
Exploration and Production Services (North Sea) Ltd.: Otto-1, Production test no. 3A - Perforated interval: 8260'-8324', February 1982.
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| 1963 |
Exploration and Production Services (North Sea) Ltd.: Otto-1, Production test no. 3B - Perforated intervals: 8160'-8240' and 8260'-8342', March 1982.
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| 1964 |
Exploration and Production Services (North Sea) Ltd.: Otto-1, Production test no. 4 - Perforated interval: 8120'-8144', March 1982.
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| 1965 |
Wright, P.A., Chevron Overseas Petroleum Inc.: Well test analysis report - Preliminary report (with tables and figures), November 1982.
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| 1966 |
Exploration and Production Services (North Sea) Ltd.: Otto-1, PVT study on samples from DST no. 2, November 1982.
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| 1967 |
Exploration and Production Services (North Sea) Ltd.: Otto-1, PVT study on samples from DST no. 3A, November 1982.
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| 1968 |
Exploration and Production Services (North Sea) Ltd.: Otto-1, PVT study on samples from DST no. 3B, November 1982.
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| 1969 |
Chevron Oil Field Research Company: Otto-1, PVT study - Compositional analysis - Final report, DST 3A, 3B, November 1984.
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| 1970 |
Chevron Oil Field Research Company: Otto-1, Fluid analysis and PVT Evaluation, November 1982.
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| 1971 |
Paleoservices Ltd.: Otto-1, Stratigraphical/Paleontological final report - Depth interval: 360'-9120', April 1982.
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| 1976 |
Chevron Oil Field Research Company: Otto-1, Final results for PVT study, DST no. 2, 3A, 3B., December 1984.
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| 1977 |
Core Laboratories UK Ltd.: Water analysis of a sample from test no. 1, February 1982.
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| 1979 |
Petroleum Testing Service, Inc.: Otto-1, Mercury capillary pressure data - Drainage and imbibition, September 1982.
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| 1982 |
Petroleum Testing Service, Inc.: Otto-1, Viscosity and gravity data - Test no. 2, 3A, 3B (with chromatograms), March 1982.
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| 1983 |
Petroleum Testing Service, Inc.: Otto-1, Core properties - Water and gas drive tests - 2880 psi simulated reservoir stress, October 1982.
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| 1986 |
Exlog: Otto-1, Description of core no. 1-8, 8115'-8505'..
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| 1988 |
Geco Norway: Otto-1, Conventional core data - Core no. 1-8, June 1982.
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| 1992 |
Core Laboratories UK Ltd.: Otto-1, Core analysis report, May 1984.
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| 1993 |
Core Laboratories UK Ltd.: Special core analysis study (Otto-1 (=T-2X), T1-X, T-3), February 1985.
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| 1994 |
Core Laboratories UK Ltd.: Special core analysis study (Otto-1, T-1X, T-3X), April 1985.
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| 1995 |
Core Laboratories UK Ltd.: Special core analysis study (Otto-1, T-1X, T-3X), November 1985.
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| 1998 |
Schlumberger: Otto-1, Measured depth versus calculated vertical depth - Tabulated interval: 4003'-9066', April 1982.
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| 1999 |
Schlumberger: Otto-1, Well course plot - Directional survey computed from Dipmeter, March 1982.
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| 2058 |
Seismograph Service (England) Ltd.: Otto-1, VSP report - Well velocity survey, January 1982.
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| 17364 |
GEUS: Otto-1, Danish North Sea well. Scanned core photos
CD-Rom and print-outs, February 2001.
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