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)
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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


