As oil and gas wells continue to age, casing integrity is becoming an increasingly critical issue for operators. Following a recent LinkedIn post on the Surface Casing Patch (SCP), RML received a high volume of technical questions from industry colleagues. To provide clarity, we have summarized the most common questions and answers below.

Key Facts About the Surface Casing Patch (SCP)

  • Installation depth:
    The SCP is typically installed when casing damage is shallow—generally between 0 and 30 meters. While the tool can be set deeper if required, most casing leaks are found within the first 1–6 meters of the well.

  • Installation time:
    A complete SCP installation takes approximately 5 to 5.5 hours, including a pressure test conducted in the presence of the client.

  • Cost efficiency:
    SCP installation is significantly more cost-effective than traditional casing repair methods such as excavation, welding, or replacement of the upper casing section.

  • Available casing sizes:
    RML currently installs SCPs in 6 5/8″, 7″, and 9 5/8″ casing strings. Additional sizes can be designed and manufactured upon request.

  • Immediate operational readiness:
    Once installed, the well is immediately ready for further operations, including running equipment in hole or performing perforation work.

  • Retrievability:
    If retrieval is required, the SCP can be removed with approximately 7 tonnes of overpull using standard fishing tools.

  • Customization:
    SCP equipment can be modified to meet specific operational conditions.

  • Operating environments:
    RML deploys SCPs in high-temperature wells and can also manufacture sealing elements for conventional environments.

Learn More

For additional information, RML is available to provide a technical presentation or arrange a video meeting.

📧 Contact: vnikitin@revelmgt.com | info@revelmgt.com