RML continues to play a key role in restoring oil-producing wells using our proven Surface Casing Patch technology. Every well completed to date has been successfully brought back online and is producing—reinforcing the reliability of our approach and the expertise of our team.
Recently, one project presented a new and complex challenge. Due to the specific design of a particular well, our client required a longer Casing Patch to be set deeper than usual, ensuring coverage not only of the damaged interval but also the lower coupling of the production casing. This was not a standard application and required a tailored solution.
Engineering a Custom Solution
To meet this requirement, RML engineers returned to the drawing board. We performed new calculations, designed and assembled extended Casing Patch sections, and determined the precise running tool length necessary to ensure proper engagement and setting depth.
The challenge didn’t stop there. The increased tool length introduced logistical constraints, particularly with transportation on trailers. To overcome this, our team carefully optimized the final tool length—ensuring it could still be transported safely while reliably engaging during the final centimeters of the stroke downhole.
Flawless Execution in the Field
Despite the added complexity, the field operation proceeded exactly as planned. The extended Casing Patch was installed using standard procedures, with no deviations or complications. Following installation, the patch was pressure-tested to 10 MPa, achieving zero pressure drop—clear confirmation of a fully sealed wellbore.
The well has since been returned to production and is now producing oil. Most importantly, the client is fully satisfied with the outcome.
Supporting Communities and the Canadian Economy
At RML, we take pride not only in solving technical challenges, but also in the broader impact of our work. Each successfully restored well contributes to the prosperity of local communities and supports the Canadian energy sector as a whole.
This project is another example of how engineering adaptability, field experience, and close collaboration with our clients allow us to deliver results—no matter how unique the challenge.


