Tasman are proud partners of Deep Casing Tools, who deliver simple, sustainable innovation across the well life cycle.

Deep Casing Tools’ Rubblizer™ technology achieved its longest interval to date at 1,017 ft when it was deployed to aid our client’s casing recovery operation in Queensland.

Our client was experiencing issues with sustained annulus casing pressure, and the recovery of a section of 9 5/8” casing was required. This casing was cemented in place from a depth of 155m back to the surface.

The annulus pressure was stabilised, before the Rubblizer™ was used to recover the top section of casing. A series of cuts were performed and this was achieved with two passes from 508 ft BRT back up to 39 ft BRT, and a third pass operating the tool across the remaining 12 casing connections to achieve a total length of 1,017 ft. This is the longest interval the tool has been operated across to date!

Following the successful operation, our client’s Senior Drilling Engineer commented, “The Rubblizer™ operation was a success and all indications were that the casing was free. We would not hesitate to use the tool again.”

Read the full case study here.