By: Drilling Engineer
|
Report No.
|
6978 |
|
Discipline/Origin
|
Drilling |
|
Well
|
Falstaff |
|
Date created
|
2024/11/21 |
|
Project Phase
|
Operational |
|
LL Type/Classification
|
Operational |
Negative Operational LL with DNO
Falstaff (2/6-7 S) – P&A
What happened:
Sat the EZSV and tagged with 6t and and overpull of 27t. Performed two pressure tests, but both failed leaking off at around 19 bar. Tried to tag the EZSV again with 15t. and redid the pressure test. Test was successful.
What was planned:
Setting of 20” EZSV.
RIH with EZSV (hydraulig) and EZSV running tool. Set EZSV at 430m, tag, overpull and pressure test
What was learned:
Tag with 15t and not 6t. It is even stated in Halliburtons procedure that the EZSV should be tagged with 15t.
Nobel Invincible
Setting of 20” EZSV.
RIH with EZSV (hydraulig) and EZSV running tool. Set EZSV at 430m, tag, overpull and pressure test
Tag with 15t and not 6t. It is even stated in Halliburtons procedure that the EZSV should be tagged with 15t.
EDITOR
CLOSE LL (testing)
Deepsea Yantai
Balcom
![](\"\/storage\/icons\/noun_rig_2570764.svg\")
Deepsea Yantai<\/a><\/li>\n\t\t\t\t\t\t\t\t
![](\"\/storage\/icons\/noun_oil_well_2946698.svg\")
Balcom<\/a><\/li>\n\t\t\t\t\t\t\t\t
![](\"https:\/\/wellexpertise.com\/track-record-new\/logo_dno.png\"){kind=logo}
<\/a>\n\t\t\t\t\t