Global provider of energy services Expro has successfully deployed its Octopoda annulus intervention system to restore annulus pressure integrity and return a well to production in Piedemonte region, Colombia
The Octopoda system successfully reached 300 metres in the annulus, a world record depth, and sealed the C annulus of the well. This removed the risk of casing collapse and gas migration to enable the well to produce and significantly extend its production lifespan.
Expro collaborated with its client to design and execute this high value-added intervention operation, which was completed at a cost that was estimated to be approximately 25% less than the cost of a conventional workover rig-enabled repair. Moreover, the Octopoda operation resulted in significantly lower carbon emissions than the conventional alternative.
Octopoda removed the need for a heavy workover rig to allow controlled circulation of annular fluids and the installation of a resin plug at the external casing shoe depth. This successfully sealed the annulus and enabled production to be resumed from the wellbore.
The system offers a safe and efficient method for removing shut-in casing pressure. It can be deployed to replace annulus fluid, to increase hydrostatic pressure, and solve casing shoe leakages by placing sealing material on the bottom of the annulus.
Utilising a unique design, Octopoda is deployed on annulus inlets, removing workover rig requirements, offering an alternative that can be rapidly deployed across all types of installations, onshore and offshore, to maximise operational uptime while reducing overall HSE exposure.
Alistair Geddes, CEO of Expro, commented, “Octopoda is already proving itself as an innovative and cost-effective solution for solving well integrity issues across the industry. It enables our customers to prolong their well lifespan, making it economically viable to regain production from shut-in wells."