Lessons Learned749

Operator Rig Discipline / Origin Project Phase Well Section Date What Happened
DNO 2209 – DNO Borgland Dolphin External Environment
Own Experience
Planning 2/5-15
Gomez
P&A 06/10/2021 Due to potential WoW it was considered to leave the well and for DNO to join Oceaneering WH cutting . . .
Christina Sæland Rødne / Christina Sæland Rødne
PDF Edit
DNO 2196 – DNO Borgland Dolphin Logistics 2/5-15
Gomez
04/10/2021 Backloaded with lack of information. Sent to wrong vendor/handled wrong. The casing was mistakenly . . .
Martin Vikse / Morten Laget
PDF Edit
DNO 2130 – DNO Borgland Dolphin Drilling
Own Experience
Operational 2/5-15
Gomez
P&A 19/09/2021 1 hr extra rig time was unnecessarily spent to make up x-over to the RT before it could be made up . . .
Drilling Supervisor / Morten Laget
PDF Edit
DNO 2305 – DNO Borgland Dolphin Logistics
Own Experience
Operational 2/5-15
Gomez
P&A 15/09/2021 Missing Protectors for 13-3/8″ Casing
Johan Kjos-Hanssen / Morten Laget
PDF Edit
DNO 2108 – DNO Borgland Dolphin Drilling
Own Experience
Operational 2/5-15
Gomez
Intermediate section 05/09/2021 The PAB system failed before the cement job due to water ingress inside the unit which caused some . . .
Drilling Supervisor / Morten Laget
PDF Edit
DNO 2107 – DNO Borgland Dolphin Drilling
Own Experience
Operational 2/5-15
Gomez
Top hole 03/09/2021 Marker buoys too close to the hole, Fell inn and got drilled to bits. ROV use the marker buoys for . . .
Drilling Engineer / Morten Laget
PDF Edit
DNO 2106 – DNO Borgland Dolphin Drilling
Own Experience
Operational 2/5-15
Gomez
Surface section 31/08/2021 Drilled 12 ¼” hole with Smith XZ616 AxeBlade PDC bit from 1613 m to 2895 m in a vertical hole. . . .
Drilling Supervisor / Morten Laget
PDF Edit
DNO 2099 – DNO Borgland Dolphin Drilling
Own Experience
Operational 2/5-15
Gomez
Production section 29/08/2021 The NORM instrument was found finally found on the drillfloor, however in an unmarked black . . .
Drilling Engineer / Morten Laget
PDF Edit
DNO 2098 – DNO Borgland Dolphin Drilling
Own Experience
Operational 2/5-15
Gomez
Surface section 27/08/2021 Unable to set seal assembly after 13 3/8″ hanger was landed. Attempted several times to pressure up . . .
Drilling Supervisor / Morten Laget
PDF Edit
DNO 2094 – DNO Borgland Dolphin Logistics
Own Experience
Operational 2/5-15
Gomez
Reservoir section 23/08/2021 Prior to mobilization of 8-1/2″ BHA, Coring and Wireline tools we held a aligmnement meeting to . . .
Johan Kjos-Hanssen
PDF Edit
DNO 2096 – DNO Borgland Dolphin Drilling
Own Experience
Operational 2/5-15
Gomez
Surface section 22/08/2021 DrilQuip MPT and BOP test tool was sent out without pup joints.
Drilling Supervisor / Morten Laget
PDF Edit
DNO 2015 – DNO Borgland Dolphin Drilling
Experience Transfer Meeting
Operational 2/5-15
Gomez
Surface section 14/08/2021 All handling subs had 5 1/2″ size. Had to spend rig time and expose rig crew in red zone changing . . .
Contact all vendors that deliver tools with handling subs to Borgland Dolphin
Drilling Supervisor / Morten Laget
PDF Edit
DNO 2014 – DNO Borgland Dolphin Drilling
Experience Transfer Meeting
Operational 2/5-15
Gomez
Surface section 14/08/2021 The Franks split bushing spider (SBS) did not fit inside the EMSCO rotary table on Borgland Dolphin.
Get in contact with Franks coordinator in town?
Drilling Supervisor / Morten Laget
PDF Edit
DNO 2013 – DNO Borgland Dolphin Drilling
Experience Transfer Meeting
Operational 2/5-15
Gomez
Top hole 14/08/2021 From among cementers it was decided to disconnect the dust collector before this job. The surge . . .
What does ETM mean?
Drilling Supervisor / Morten Laget
PDF Edit
DNO 2011 – DNO Borgland Dolphin Drilling
Own Experience
Operational 2/5-15
Gomez
Rig move 12/08/2021 Scope of work was not sent to OIM or DSV before job. Two men from Schlumberger arrived at rig to . . .
Drilling Supervisor / Morten Laget
PDF Edit
DNO 2012 – DNO Borgland Dolphin Drilling
Own Experience
Operational 2/5-15
Gomez
Top hole 12/08/2021 ROV was only equipped with standard jetting tool with low flowrate, unable to remove larger amounts . . .
Drilling Supervisor / Morten Laget
PDF Edit
DNO 2010 – DNO Borgland Dolphin Drilling
Own Experience
Operational 2/5-15
Gomez
Top hole 12/08/2021 We could not store enough Tuned Light cement on two cmt silos on the rig to get the required volume . . .
Drilling Supervisor / Morten Laget
PDF Edit
DNO 1436 – DNO Borgland Dolphin External Environment
NEA Q&A
Planning 2/5-15
Gomez
23/04/2021 Hearing comment from Directorate of Fisheries: The ERACA/AfD lack information about sea mammals that . . .
Christina Sæland Rødne / Christina Sæland Rødne
PDF Edit
DNO 1435 – DNO Borgland Dolphin External Environment
NEA Q&A
Planning 2/5-15
Gomez
23/04/2021 Hearing comment from Directorate of Fishery: The ERACA lacks information about fishing/fishery . . .
Christina Sæland Rødne / Christina Sæland Rødne
PDF Edit
DNO 1434 – DNO Borgland Dolphin External Environment
NEA Q&A
Planning 2/5-15
Gomez
23/04/2021 Subunit C in PL006C not available in Brønnøysundregisteret.
Christina Sæland Rødne / Christina Sæland Rødne
PDF Edit

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