Salt: Nedmag TR-9 workover 2021
Project Description
The objective of the workover operations was to remove the existing damaged completion strings.
The most challenging string was the 7 x 7 5/8″, in which setting and retrieving plugs took more time than expected due to debris in the casing. On the other hand, the string was stuck in the cavern; thus, several attempts to cut the string were required before it was successfully retrieved.
Then the new dual concentric completion was installed that allows simultaneous injection and production operations in the well. This was accomplished by running the 7” injection string; in particular, with a sacrificial drill-in BHA, followed by installing / drilling-in the 5” x 3 ½” production string and finally installing the 2 ⅞” dilution string.
The project was finished with zero HSE-related non-conformities.
Challenges
Retrieve the old 7.5/8″ completion to surface.
Role of WEP
WEP provided project planning, tendering engineering, coordination, management and supervision for the project while other companies provided materials and services.
Overview
Client
Nedmag BVLocation
WHC-2 / TripscompagnieWell
TR-9Date
Start drilling: 01 October 2021
End execution: 24 December 2021Objective
Re-complete wellDepth
Depth (MD): 2451m
Depth (TVD): 1812m