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WELL DATA SUMMARY SHEETS
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WELL: GWEN-2
Contents
Technical and administrative data
| Location
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Offshore
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| Longitude
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04°04'10''.3
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| Latitude
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56°06'51''.6
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| UTM Zone
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31
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| UTM Easting (x)
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566508.8 (m)
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| UTM Northing (y)
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6219458.0 (m)
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| Well block no.
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5604/29-3
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| Reference point
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KB 120 ft above MSL
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| Water depth
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206 ft below MSL
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| TD log
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14451 ft below KB
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| TD drill
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14439 ft below KB
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| The well is
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Vertical
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| Structure:
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Gwen
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| Spudded
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30/09-1986.
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| Completed
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15/12-1986
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| Spud classification
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Appraisal
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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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Mærsk Olie Og Gas As
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| Contractor
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Mærsk Drilling
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| Rig
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Mærsk Endeavour
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Casing
| top depth | shoe depth | diameter |
| ft. | m. | ft. | m. | inch | inch (decim) |
| 330.1
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100.6
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485.9
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148.1
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36"
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36.000
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| 339.9
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103.6
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1354.0
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412.7
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26"
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26.000
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| 341.9
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104.2
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4123.0
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1256.7
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20"
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20.000
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| 341.9
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104.2
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8120.1
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2475.0
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13 3/8"
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13.375
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| 356.0
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108.5
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13357.0
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4071.2
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9 5/8"
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9.625
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Lithostratigraphy (Groups)
| Top | Bottom | Unit |
| ft. below ref. level | |
| 326.0
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10089.8
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Post Chalk Group
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| 10089.8
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13256.7
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Chalk Group
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| 13256.7
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13341.7
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Cromer Knoll Group
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| 14289.7
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14450.7
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Bacton Group
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Chronostratigraphy (Periods)
| Top | Bottom | Unit |
| ft. below ref. level | |
| 326
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2110
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Quaternary
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| 2110
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10347
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Tertiary
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| 10347
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13342
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Cretaceous
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| 13342
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14290
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Jurassic
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| 14290
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14451
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Triassic
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Samples
Cores
| core | top | bottom | recovery |
| no. | ft. below ref. level | |
| 1
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13900.00
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13961.66
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100.0
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| 2
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13961.66
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14023.17
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100.0
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| 3
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14023.17
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14084.50
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100.0
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Cuttings
| from | to | distance |
| ft. below ref. level | bt cuttings |
| 500.00
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1370.00
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30.00
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| 1370.00
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1395.00
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25.00
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| 1395.00
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1430.00
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5.00
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| 1430.00
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4160.00
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30.00
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| 4160.00
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4175.00
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15.00
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| 4175.00
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4200.00
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25.00
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| 4200.00
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9920.00
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20.00
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| 9920.00
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12240.00
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10.00
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| 12240.00
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12258.00
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18.00
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| 12258.00
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12260.00
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2.00
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| 12260.00
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13370.00
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10.00
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| 13370.00
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13379.00
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9.00
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| 13379.00
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13380.00
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1.00
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| 13380.00
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14440.00
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10.00
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Sidewall Cores
36 samples recovered from interval 13250 - 14425 ft. below ref. level
Available well logs
Company: Schlumberger
| File no. | Log type, interval, suite no, run no, scale |
| 1368
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CBL-VDL-GR 9 5/8" Casing, 4006.00-13361.00ft, 2, 1:200
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| 1372
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CST-GR, 13250.00-13370.00ft, 1, 1, 1:200
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| 1373
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CST-GR, 13405.00-14445.00ft, 2, 2, 1:200
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| 1376
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Cyberdip, 13358.00-14448.00ft, 2, 2, 1:200
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| 1377
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Cyberdip, 13358.00-14448.00ft, 2, 2, 1:1000
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| 1356
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DIL-SLS-GR-SP, 8118.00-13386.70ft, 1, 1, 1:200
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| 1357
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DIL-SLS-GR-SP, 8118.00-13386.70ft, 1, 1, 1:1000
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| 1358
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DIL-SLS-GR-SP, 13361.00-14444.70ft, 2, 2, 1:200
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| 1359
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DIL-SLS-GR-SP, 13361.00-14444.70ft, 2, 2, 1:1000
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| 1378
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Gamma Ray Log to 26" casing, 1337.00-8178.00ft, 1, 1:200
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| 1379
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Gamma Ray Log to 26" casing, 1337.00-8178.00ft, 1, 1:1000
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| 1362
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LDL-CNL-GR, 8118.00-13392.00ft, 1, 1, 1:200
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| 1363
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LDL-CNL-GR, 8118.00-13392.00ft, 1, 1, 1:1000
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| 1365
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LDL-CNL-NGS, 13361.00-14448.00ft, 2, 2, 1:200
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| 1366
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LDL-CNL-NGS, 13361.00-14448.00ft, 2, 2, 1:1000
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| 1374
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NGS Ratio, 13361.00-14448.00ft, 2, 2, 1:200
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| 1375
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NGS Ratio, 13361.00-14448.00ft, 2, 2, 1:1000
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| 1369
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RFT-GR, 13874.00-14009.00ft, 2, 1
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| 1370
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SHDT-GR, 8118.00-13390.00ft, 1, 1, 1:200
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| 1371
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SHDT-GR, 13358.00-14448.00ft, 2, 2, 1:200
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Company: Teleco
| File no. | Log type, interval, suite no, run no, scale |
| 1380
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MWD Resistivity Gamma, 1400.00-4160.00ft, 1:500
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| 1381
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MWD Resistivity Gamma, 4150.00-8130.00ft, 1:500
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Available Reports
| File no. | Author, company, title, publication date |
| 849
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CORE LAB : Special Core Analysis, September 1988.
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| 850
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CORE LAB : CMS-200 Study, June 1987.
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| 855
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Dan Olsen, DGU-CORE ANALYSIS LABORATORY : Conventional Core Analysis - Core no. 1,2 and 3, February 1987.
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| 856
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ROBERTSON RESEARCH : Biostratigraphy of the interval 1160'-14440'TD - Report no: 3623/IA, March 1987.
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| 857
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MÆRSK OLIE OG GAS A/S : Final well report, October 1987.
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| 861
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SCHLUMBERGER : Stratigraphic high resolution dipmeter MSD computations - Depth: 8125'-13378', November 1986.
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| 862
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SCHLUMBERGER : Stratigraphic high resolution dipmeter MSD computations - Depth: 13370'-14448', November 1986.
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| 13134
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SEISMOGRAPH SERVICE LTD. : Vertical Seismic Profile - Well Velocity Survey and Calibrated Log (incl. 1 VSP-report), January 1987.
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| 13239
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EXLOG : Final well report (encl.), December 1986.
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| 17191
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Gwen-2, Danish North Sea well. Scanned core photos. CD-Rom and print-outs, September 1999.
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