An alphanumeric list of wells I’ve worked on:
UK Continental Shelf:
03/03- 12 Ninian (South)
CNR (Canadian National Resources), Transocean John Shaw, 2003
Deviated appraisal well targeting Tertiary Ninian sands.
03/24c- 6B North Eigg
Serica Energy, Transocean Paul B. Loyd Junior, 2022
First S-shaped HP/HT exploration well targeting North Eigg Jurassic sands (3rd spud due to top-hole instability).
09/02b-C4 (P-01) Kraken (Worcester), Drill Centre 2
09/02b-D4 (I-01)
09/02b-D4Z (I-01)
09/02b-F3 (I-02) Kraken, Drill Centre 3
09/02b-F4 (I-04)
09/02b-G1 (I-04) Kraken, Drill Centre 4
09/02b-G2 (P-04)
09/02b-G3 (P-03)
EnQuest, Transocean Leader 2017 – 2019 and Stena Don, 2020
Horizontal development producer and injector wells targeting Palaeocene Heimdal sands.
09/09- 15 MacLure
Maersk Oil, Operations, 2008
Horizontal appraisal well targeting…
09/13a- 65Z Beryl (Greater Area)
ExxonMobil, Global Arctic III, 2005
Horizontal appraisal sidetrack targeting Mid-Jurassic Beryl sands.
09/13a-A78 Beryl (Alpha)
09/13a-A78Z
ExxonMobil, Beryl Alpha Platform, 2003
Horizontal development well and sidetrack targeting Mid-Jurassic Beryl sands.
09/13a-B59Y Beryl (Bravo)
09/13a-B64
09/13a-B65Z
09/13a-B66Z
ExxonMobil, Beryl Bravo Platform, 2005
Horizontal development wells and sidetracks targeting Mid-Jurassic Beryl sands. Some Beryl field wells had deeper secondary targets in the Triassic.
09/13a-N11 Beryl (Nevis)
09/13a-N12
09/13a-N13
09/13a-N13Z
ExxonMobil Global Arctic III, 2004 (N11, N12) and 2012 (N13, N13Z)
Horizontal development wells (and sidetrack) targeting Mid-Jurassic Beryl sands.
09/14a- 17 Plantain / Agar
09/14a- 17A
09/14a- 17B
Azinor Catalyst UK, Transocean Leader, 2018
Deviated appraisal well (re-spudded twice) targeting Eocene Frigg injectite sands.
09/18a- 36 Gryphon (North)
09/18a- 36Z
09/18a- 36Y
Maersk Oil, Operations, 2008 – 2009
Geosteered extended reach horizontal appraisal / development well and sidetracks targeting the ‘injection wing’ Eocene Balder sands to the North of the main field.
09/18a-N1 Gryphon (North)
Maersk Oil, Operations, 2009
Geosteered horizontal appraisal well targeting Eocene Balder sands.
09/18b-A27 Gryphon (Main Field)
09/18b-A28
09/18b-A28Z
Maersk Oil, Noble Ton Van Langeveld, 2006
Horizontal development wells and a sidetrack targeting Eocene Balder sands.
09/18b-A29 Gryphon (Main Field)
09/18b-A30
09/18b-A30Z
09/18b-A30Y
Maersk Oil, Operations, 2007 – 2009
Horizontal development well and sidetracks targeting Eocene Balder sands.
09/23a-T4 Tullich
Maersk Oil, Operations, 2006
Horizontal development well targeting lower Eocene Balder sands.
11/30a-B13 Beatrice
Talisman Energy, Noble Julie Robertson, 2001
Deviated development well targeting Mid-Jurassic Beatrice sands.
12/21c-J3 Jacky
Ithaca Energy, Energy Enhancer, 2011
S-shaped development well targeting Mid-Jurassic Beatrice ‘A’ sand.
12/22a- 4 Romulus / Remus
Talisman Energy, Rowan Gorilla VII, 2002
Vertical exploration well targeting Late Jurassic Romulus and Remus sands (Remus sand was the primary, deeper target. Romulus sand was the secondary, shallower target).
13/29b- 9 Skate
Talisman Energy, Ocean Vanguard, 2004
Deviated exploration well targeting Lower Cretaceous Captain sands.
14/18b-A1 Athena
Ithaca Energy, Transocean Sedco 704, 2011
Vertical Development (produced water re-injection) well targeting Cretaceous Scapa sands (Valhall).
14/19-C74 Claymore
Talisman Energy, Claymore Platform, 2000
S-shaped development well targeting Late Jurassic Claymore sands.
14/19-C75 Claymore
Talisman Energy, Claymore Platform, 2001 – 2002
Above horizontal (max inclination 118°) development well targeting Late Jurassic Claymore sands (including running the world’s then longest 220ft pipe conveyed wireline logging string).
14/19-C76 Claymore
14/19-C76Z
Talisman Energy, Claymore Platform, 2002
Deviated development well targeting Late Jurassic Claymore sands.
14/19-C79 Claymore
Talisman Energy, Claymore Platform, 2004
S-shaped development well targeting Late Jurassic Claymore sands.
14/20b- 31 Highlander
Talisman Energy, Ocean Princess, 2002
Vertical appraisal well targeting Late Jurassic Claymore sands.
15/16a- 23 Tartan (North Terrace)
Talisman Energy, Ocean Princess, 2003
Vertical exploration well targeting Late Jurassic Piper sands.
15/16a-T20 Tartan
Talisman Energy, Tartan Platform, 2005
Deviated development well targeting Late Jurassic Tartan sands.
15/17-B19Y Piper
15/17-B19X
Talisman Energy, Piper Bravo Platform, 2002
Extended reach horizontal appraisal sidetracks targeting Late Jurassic Piper sands.
15/20a- 17 Pladda (subsequently renamed Lochranza)
Maersk Oil, Noble Ton Van Langeveld, 2006
Vertical exploration well targeting Tertiary (Lista) Lower Balmoral sands.
15/20a-D1 Dumbarton (formerly Donan) Phase 1 development
15/20a-D1Z
15/20a-D2
15/20a-D2Z
15/20a-D3
15/20a-D4
15/20a-D4Z
15/20a-D5
15/20a-D6 (produced water re-injection well)
Maersk Oil, Noble Ton Van Langeveld, 2006
Horizontal (except PWRI) development wells and sidetracks targeting Tertiary (Lista) Lower Balmoral sands.
15/20a-D7 Dumbarton (formerly Donan) Phase 2 development
15/20a-D8
15/20a-D8Z (produced water re-injection well)
15/20a-D9
15/20a-D9Z
15/20a-D10
15/20a-D12
Maersk Oil Operations, 2008 – 2009
Horizontal (except PWRI) development wells and sidetracks targeting Tertiary (Lista) Lower Balmoral sands
15/20a-L1 Lochranza (formerly Pladda)
15/20a-L1A
15/20a-L2
Maersk Oil, Operations, 2009
Deviated development wells targeting Tertiary (Lista) Lower Balmoral sands
15/20b- 16 Dumbarton (North West)
Kerr McGee, Noble Ton Van Langeveld, 2005
Deviated appraisal well targeting Tertiary (Lista) Lower Balmoral sands
15/20b- 16Z Dumbarton (North West)
15/20b- 16Y
Maersk Oil, Operations, 2008
Horizontal development sidetracks targeting Tertiary (Lista) Lower Balmoral sands
15/23a-G7Z Galley
Talisman Energy, Ocean Princess, 2004
Deviated development well targeting Late Jurassic Galley sands
15/27- 10 Roisin
Talisman Energy, Ocean Vanguard, 2004
Vertical HP/HT exploration well targeting Late Jurassic Scapa & Galley sands. Secondary targets were the shallower Tertiary Forties and Andrew sand units.
15/30-M8 Britannia (Greater Area)
Britannia Operator Ltd., Sedco Drillstar, 2000
S-shaped development well targeting Early Cretaceous Britannia sands
16/21d- 36 Bladon / Crookston
Maersk Oil, Operations, 2008
Deviated appraisal well targeting Tertiary Lower Balmoral and Jurassic Piper sands
16/26-B11 Britannia (Main Field)
16/26-B13Z
16/26-B16
Britannia Operator Ltd., Britannia Platform, 1998 – 2000
Deviated development well targeting Late Cretaceous Britannia sands
21/01a- 19 Buchan (Tweedsmuir)
21/01a- 19Y
21/01a- 20
21/01a- 21
Talisman Energy, Ocean Princess, 2001 – 2004
Vertical exploration and deviated appraisal wells and sidetrack targeting Late Jurassic Burns sands
21/05c-F1 Finlaggan
21/05c-F3
Zennor Petroleum, Transocean Paul B. Loyd Junior, 2018 (F1)
Neo Energy Ltd, Transocean Paul B. Loyd Junior, 2023 (F3)
Development wells targeting Jurassic Britannia sands (F3 geosteered approx. horizontal)
21/20d- 8 Bligh
Centrica Energy, Transocean Galaxy 2, 2012
Vertical HP/HT appraisal well targeting Upper Jurassic Puffin sand and Mid-Jurassic Pentland sand. Secondary targets were Upper Jurassic Christian and Fulmar sands
21/24-E1 Guillemot (West)
Shell, Santa Fe 140, 1999
Deviated development well targeting Tertiary (Eocene) Tay sands
21/24-W7 Guillemot (North West)
21/24-W7Z
Dana Petroleum, COSL Innovator, 2024
Pilot hole and horizontal geosteered development sidetrack targeting Tertiary Tay sands
21/30c-31 Gannet
Serica Energy, COSL Innovator, 2024
Development sidetrack targeting Tertiary Tay Sands.
21/30f-E2 Evelyn
21/30f-E2Z
Serica Energy, COSL Innovator, 2025
Pilot hole and horizontal geosteered development sidetrack targeting Palaeocene Tay sands.
22/14b-H5 Huntington
E-on Ruhrgas, Ensco 100, 2012
Horizontal development well…
22/16- 6 Dalziel
22/16- 6Z
22/16- 6Y
GDF Suez, Operations, 2014 – 2015
Vertical HP/HT exploration well and appraisal sidetracks targeting Late Jurassic Fulmar sands
22/23c- 8 Taggart / Rebus
22/23c- 8Z
22/23c- 8Y
22/23c- 8X
GDF Suez, Operations, 2013
Vertical HP/HT exploration well with deviated mechanical and geological sidetracks targeting Late Jurassic Fulmar sands (Taggart) and Permian (Rotliegendes) Auk sands (Rebus)
22/25a- 9 Culzean
22/25a- 9Z
Maersk Oil, Operations, 2008
Vertical ultra-HP/HT exploration well targeting Late Jurassic Fulmar sands
22/30a-H4 Heron (ETAP)
Shell, Sedco 714, 1998
Deviated development well targeting Late Triassic Skagerrak sands
22/30b-A01 Shearwater
22/30b-A02
22/30b-A03
22/30b-A04
22/30b-A05
22/30b-A06
Shell, Maersk Endurer, 1997 – 1999
S-shaped HP/HT development wells targeting Late Jurassic Fulmar sands (A01 briefly held the world record for the highest-pressure well successfully drilled and completed)
23/16f-C1 Columbus
23/16f-C1Z
Serica Energy, Maersk Resilient, 2021
Extended reach horizontal / geosteered development well and sidetrack targeting Tertiary (Upper Forties) sands.
29/01b-B6 Bittern
Dana Petroleum, COSL Innovator, 2024
Bittern field development well. Extended reach geosteered well targeting attic oil in Upper Bittern Sands
29/08a- 6 Acorn
Venture Production, Noble Ton Van Langeveld, 2009
Deviated appraisal well targeting Late Triassic Skagerrak sands
30/01d- 10 Ockley
Maersk Oil, Operations, 2010
Geosteered above horizontal (over 100° inclination) extended reach exploration well targeting thin high-permeability layers of Cretaceous chalk
30/01f- 13 Marconi
30/01f- 13A
30/01f- 13Z
30/01c- 13Y
GDF Suez, Operations, 2014
Deviated exploration well, re-spud, mechanical 13Z sidetrack and geological appraisal 13Y sidetrack targeting Tertiary Rogaland sands (note the 13Y sidetrack crossed into the adjacent BP block 30/01c)
30/02a- 5 Courageous
30/02a- 5Z
30/02a- 5Y
Kerr McGee, Transocean John Shaw, 2005 – 2006
Vertical exploration well and appraisal sidetracks targeting Tertiary Forties sands
30/11a- 11 Faraday
GDF Suez, Transocean Galaxy 2, 2011
Vertical ultra-HP/HT exploration well targeting Late Jurassic Fulmar sands
30/13a- 11 Talbot
GDF Suez, Transocean Galaxy 2, 2012 – 2013
Deviated HP/HT exploration well targeting Palaeocene Mey Formation turbidite sands
30/13b- 10 Jacqui
30/13b- 10Z
GDF Suez, Transocean Galaxy 2, 2012
Vertical appraisal well and sidetrack targeting Jurassic Fulmar sands
30/14- 3 Flyndre
30/14- 3Z
Maersk Oil, Operations, 2006 – 2007
Deviated appraisal well and extended reach geosteered horizontal sidetrack targeting Tertiary (Lista) Lower Balmoral sands
30/14- 4 Cawdor
30/14- 4Z
Maersk Oil, Operations, 2008
Vertical exploration well and s-shaped sidetrack targeting Late Cretaceous Tor chalk with Ekofisk chalk as a secondary target and Palaeocene Balmoral sands as a tertiary target
30/16- 14 Janice (Western Terrace)
Kerr McGee, Noble Ton Van Langeveld, 2005
S-shaped appraisal well targeting Late Jurassic Fulmar sands
30/16-F38 Fulmar (Halley Beta)
30/16-F38Z
30/16-F38Y
Talisman Energy, Fulmar Platform, 2002 – 2003
Deviated development well and sidetracks targeting Late Jurassic Fulmar sands
30/17a-J11 Janice
30/17a-J12
30/17a-J13
Kerr McGee, Noble Ton Van Langeveld, 2005
S-shaped development wells targeting Late Jurassic Fulmar sands
30/17a-M2 James
Maersk Oil, Operations, 2007
Horizontal extended reach geosteered development well targeting Late Jurassic Fulmar sands
30/17b- 30 Clyde (Eta)
Talisman Energy, Ocean Princess, 2004
Vertical HP/HT exploration well targeting Late Jurassic Fulmar sands
30/17b-A32 Clyde (North Leven) 2000
30/17b-A33 Clyde (Main Field) 2000
30/17b-A33Z Clyde (Main Field) 2000
30/17b-A34 Clyde (Eta HP/HT) 2000
30/17b-A34Z Clyde (Eta HP/HT) 2002
30/17b-A35 Clyde (Main Field) 2001
30/17b-A37 Clyde (West) 2003
30/17b-A37Z Clyde (West) 2003
30/17b-A38 Clyde (North Leven) 2003
30/17b-A40 Clyde (Main Field) 2004
Talisman Energy, Clyde Platform, 2000-2004
Horizontal extended reach development wells and sidetracks targeting Late Jurassic Fulmar sands, deviated HP/HT exploration well and subsequent sidetrack, and North Leven satellite field development (ERD >90 deg)
30/19a-A1 Affleck
30/19a-A1Z
30/19a-A2
30/19a-A2Z
30/19a-A2Y
Maersk Oil, Operations, 2006 – 2007
Horizontal development wells and sidetracks targeting Late Cretaceous Tor chalk
42/13a-A11 Breagh
42/13a-A12 (A2 sidetrack)
Ineos Energy, Maersk Resolve 2021, Noble Resilient 2023.
Extended reach development wells targeting Carboniferous Yoredale sands
42/27- 4 Earn
42/27- 4Z
Dana Petroleum, Valaris 121, 2023
Vertical exploration well targeting Permian Leman sands with deviated sidetrack
42/28d- 11Z Tolmount
E-on Ruhrgas, Global Santa Fe Labrador, 2010
Deviated exploration sidetrack targeting Permian (Rotliegendes) Lower Leman sands with secondary targets in Silverpit and Carboniferous sands above and below the Leman
43/13b- 6 Pegasus
43/13b- 6Z
Centrica Energy, Noble Julie Robertson, 2010
Vertical exploration well and sidetrack targeting Carboniferous (Kinderscoutian) millstone grit of the Whitehurst Group
44/11a-B1 Cygnus (Bravo)
44/11a-B2
44/11a-B3
44/11a-B4
44/11a-B5
GDF Suez, Operations, 2015 – 2016
Horizontal development wells targeting Permian Lower Leman sands
44/12a- 6 Cepheus
GDF Suez, Operations, 2014
S-shaped appraisal well targeting Permian Lower Leman sands (coring and recovering a record 242ft in one run with a 240ft barrel and 2ft coring head)
44/12a-A1 Cygnus (Alpha)
44/12a-A2
44/12a-A3
44/12a-A3Z
44/12a-A4
44/12a-A4Z
GDF Suez, Operations, 2014 – 2015
Horizontal development wells targeting Permian Lower Leman sands (A1, A4 and A4Z) and Carboniferous Lower Ketch sands (A2, A3 and A3Z).
44/16a- 4 Humphrey
44/16a- 4Z
GDF Suez, Operations, 2015
Vertical exploration well and mechanical sidetrack targeting Carboniferous Lower Ketch sands
44/28a- 6 Fulham
Centrica Energy, Noble Scott Marks, 2010
Vertical exploration well targeting Carboniferous Westphalian sands
44/28b-K8Z Ketch
Tullow Oil, Ensco 70, 2010
Development well sidetrack…
47/14b- 11 Romeo
GDF Suez, Operations, 2014
Vertical exploration well targeting Permian Lower Leman sands
47/14b-G1 Juliet
47/14b-G2
GDF Suez, Noble Ronald Hoope (G1) and GDF Suez Operations (G2), 2013
Horizontal development well targeting Permian Lower Leman sands
48/02a-B4 Babbage
E-on Ruhrgas, Ensco 100, 2012
Horizontal development well targeting Permian Lower Leman sands
48/03a- 5 Morpheus
Centrica Energy, Noble Julie Robertson, 2009 – 2010
Vertical exploration well targeting Permian Lower Leman sands
48/12e- 11 Olympus
Centrica Energy, Noble Julie Robertson, 2010
Vertical exploration well targeting Permian Lower Leman sands
48/14a-G2 Galleon
48/14a-G7
Shell, Santa Fe Britannia, 1999
Underbalanced drilling targeting gas bearing Permian sands (wells PG-02 and PG-07)
48/14a- 7Z Ensign
48/14a- 7Y
Centrica Energy, Noble Julie Robertson, 2011
Horizontal development well targeting Permian Lower Leman sands
48/18b-B3 Anglia
GDF Suez, Noble Julie Robertson, 2004
Horizontal development well targeting Permian Lower Leman sands
48/20a-S2 Skiff
Shell, Maersk Endurer, 2000
Horizontal development well targeting Permian Lower Leman sands. (Drilled under-balanced through depleted reservoir to mitigate against the risk of losses and formation damage)
49/04a-C3 Chiswick
49/04a-C4
Centrica Energy, Noble Scott Marks, 2009
Horizontal development wells targeting Carboniferous Westphalian sands with secondary targets being Permian Silverpit and Leman sands
49/14b- 4 Carrack (North)
Shell, Maersk Endurer, 1999
Deviated appraisal multi-target well aiming to intersect Permian Silverpit and Lower Leman sands and Carboniferous Westphalian sands.
49/21c-A2 Southwark
IOG, Noble Hans Duel, 2022
53/03d- 10 Alcyone
Centrica Energy, Noble Julie Robertson, 2010
Vertical exploration well targeting Permian Lower Leman sands
110/03b- 6 Whitbeck
110/03b- 6A
Senergy (operating on behalf of Venture Production), Ensco 92, 2009
Vertical exploration well targeting Triassic Ormskirk Sands (encountered a Dolerite sill of the ‘Borrowdale Volcanics’ just below sea bed)
110/15a- 13Z Lennox
BHP Billiton, Ensco 85, 2009
Horizontal development well targeting…. (with circa. 50,000ppm H2S)
211/12a-M62Z Magnus
211/12a-M63
211/12a-M66 (North West Magnus Producer)
211/12a-M67 (North West Magnus Injector)
211/12a-M68 (Operations Geology support)
211/12a-M69 (Operations Geology support)
EnQuest, Magnus Platform, 2018 to 2023 (and ongoing)
Extended reach horizontal development / infill wells targeting Late Jurassic Magnus sands in the main Magnus reservoir, and a producer / injector pair into the Jurassic Brent Group, Tarbert and Rannoch sands in the NW terrace.
211/21a- 17 Tern (East) / Kestrel
Shell, Sedco 712, 1997
Deviated exploration well targeting Mid-Jurassic Brent Group sands with a secondary target being Triassic Cormorant sands (units 1 & 2)
West Africa – Mauritania
Cormoran 1
Dana Petroleum, Maersk Deliverer, 2010.
Exploration well targeting the northern extent of known offshore hydrocarbon traps.
Central Africa – Chad
Wells 1-6 (Kanem West, Talha, Haraze, Ghazal, Kitir, Tamarisk)
Delonex Energy Ltd. Operations, 2019
Six exploration wells (5 of which were true wildcat exploration) drilled in Chad’s Termit Basin, Block H. Well details not released by operator.