Challenge: After setting a whipstock, the operator wanted to sidetrack a well with a window milling operation. It was critical to collect the metal debris generated during this milling operation, thereby preventing it from being strung out along the hole. Removing all the debris was essential for the success of future runs to install the re-completion equipment.
Solution: The M-I SWACO SPECIALIZED TOOLS group recommended a specially designed milling assembly made up of the window mill, heavy-weight drill pipe, drill collars, and six M-I SWACO MAGNOSTAR magnets.
Results: The MAGNOSTAR magnets were run in two assemblies of three tools each. The two assemblies collected a combined 156 kg (343 lb) of debris, thus clearing a path for the future assembly of the completion hardware. The company representative on board was very satisfied with the performance of the tools compared to previous equipment used on similar operations.