WE Report

Lessons Learned

Lessons Learned865


Operator Rig Discipline / Origin Project Phase Well Section Date What Happened

PGNiG
4951 – PGNiG

Deepsea Yantai Drilling Operational 6608/1-1
Copernicus
N/A 26/09/2022 The Electrician was called and he found a loose wire (norwegian: fase) inside one of the . . .

Steinar Aarnes



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PGNiG
4913 – PGNiG

Deepsea Yantai Drilling Operational 6608/1-1 S
Copernicus
P&A 23/09/2022 When pulling the conductor there was no cement stuck to it due to use of protane wrapping on the . . .

Drilling Engineer / Morten Laget


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PGNiG
4911 – PGNiG

Deepsea Yantai Drilling Operational 6608/1-1 S
Copernicus
Surface section 20/09/2022
10-15 ton OP while pulling out of open hole.
Bit and stabs balled up / clay

Drilling Engineer / Morten Laget


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PGNiG
4912 – PGNiG

Deepsea Yantai Drilling Operational 6608/1-1 S
Copernicus
Production section 20/09/2022 Time was spend circulating hole clean and even MW in/out.

Drilling Engineer / Morten Laget


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PGNiG
4921 – PGNiG

Deepsea Yantai Logistics
Own Experience
Operational 6608/1-1 S
Copernicus
Other 20/09/2022 Due to late busy vessel schedule of PSV and MI Swaco vessel MS Norbar, mud for 8-1/2″ Section was . . .

Johan Kjos-Hanssen / Morten Laget



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PGNiG
4908 – PGNiG

Deepsea Yantai Drilling Operational 6608/1-1 S
Copernicus
19/09/2022 Spent 3 hours to release RT after landed 18 3/4″ WH

Drilling Engineer / Morten Laget


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PGNiG
4909 – PGNiG

Deepsea Yantai Drilling Operational 6608/1-1 S
Copernicus
Top hole 19/09/2022 The SMO level sensor did not function in auto operation. Was operated manually. Enhanced made a . . .

Drilling Engineer / Morten Laget


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PGNiG
4910 – PGNiG

Deepsea Yantai Drilling Operational 6608/1-1 S
Copernicus
P&A 19/09/2022 After setting 8 1/2″ OH P&A Cement Plug the plan was to circulate clean at 100 m over TOC and . . .

Drilling Engineer / Morten Laget


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PGNiG
4907 – PGNiG

Deepsea Yantai Drilling Operational 6608/1-1 S
Copernicus
17/09/2022 During bulking the boat was alongside and was covered in dust

Drilling Engineer / Morten Laget


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PGNiG
4905 – PGNiG

Deepsea Yantai Drilling Operational 6608/1-1 S
Copernicus
P&A 16/09/2022 To balanced the cement plug by pumping more spacer behind the cement plug.

Drilling Engineer / Morten Laget


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PGNiG
4906 – PGNiG

Deepsea Yantai Drilling Operational 6608/1-1 S
Copernicus
Top hole 16/09/2022 30″ conductor was run as a “pre spud” activity. Hung off in landing string and acme sub in trip . . .

Drilling Engineer / Morten Laget


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PGNiG
4902 – PGNiG

Deepsea Yantai Logistics Operational 6608/1-1 S
Copernicus
Top hole 15/09/2022 It was sent out personell who had not been on the rig before and was not experienced with the . . .

Drilling Engineer / Morten Laget


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PGNiG
4903 – PGNiG

Deepsea Yantai Drilling Operational 6608/1-1 S
Copernicus
Top hole 15/09/2022 Enhanced and ROV had to be on same channel as drillfloor when doing offline activity due to repeater . . .

Drilling Engineer / Morten Laget


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PGNiG
4904 – PGNiG

Deepsea Yantai Drilling Operational 6608/1-1 S
Copernicus
Surface section 15/09/2022 The cement swivel was delivered with the wrong threads. Delivered with NC50, should been XT57.

Drilling Engineer / Morten Laget


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PGNiG
4949 – PGNiG

Deepsea Yantai Drilling Operational 6608/1-1 S
Copernicus
Surface section 15/09/2022
After landing the 18 3/4″ LPWHH, the RT would not release from the WH. Several times they attempted . . .

Richard Mollison


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PGNiG
4950 – PGNiG

Deepsea Yantai Drilling Operational 6608/1-1 S
Copernicus
Surface section 15/09/2022 The box end of the 13 3/8″ no cross coupling is too long to allow the use of the casing running tool . . .

Richard Mollison


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PGNiG
4901 – PGNiG

Deepsea Yantai Drilling Operational 6608/1-1 S
Copernicus
P&A 14/09/2022 The heating cabinet in the logging unit does not work as required, not able to change the . . .

Drilling Engineer / Morten Laget


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PGNiG
4846 – PGNiG

Deepsea Yantai Logistics Operational 6608/1-1 S
Copernicus
Reservoir section 12/09/2022 The BU GVR MWD tool for 8 1/2″ section not at site when drilling the section. The near bit . . .

Drilling Engineer / Morten Laget


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PGNiG
4922 – PGNiG

Deepsea Yantai Logistics
Own Experience
Operational 6608/1-1 S N/A 12/09/2022 Captain of the vessel suggested to use the Brine tank for the Premix as Premix does not contain . . .

Johan Kjos-Hanssen / Morten Laget



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PGNiG
4845 – PGNiG

Deepsea Yantai Drilling Operational 6608/1-1 S
Copernicus
Production section 11/09/2022 Ran casing hanger through rotary and installed master bushing. Difficult to install due to short . . .

Drilling Engineer / Morten Laget


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