Qatargas engineers identified the flexible grouted clamp concept as a way to repair anchor damage such as dents, gouges and displacement, as part of the development of the company’s emergency pipeline repair system. Qatargas is now working with Penspen to develop a simple off-the-shelf modular repair system that can be modified to suit a variety of non-leaking damage scenarios.
The flexible grouted clamp can be readily fitted to pipelines that have been displaced and distorted and can incorporate structural grouts that will support damage and prevent failure of the defect under the clamp, unlike conventional emergency repair clamps.
Penspen has contracted FoundOcean to provide consultancy services related to the grout selection and the design of the clamp grout delivery system as well as the performance of verification tests.
The development of the flexible grouted clamp has included the development of procedures to quickly and reliably assess the severity of anchor damage to large diameter pipelines, including consideration of the presence of any potential denting, displacement, or gouging. In addition, the procedures provide damage limits for the application of a flexible grouted clamp.
Work will continue throughout spring with design due to be delivered in June 2011.
For more information, visit www.penspen.com or www.qatargas.com.qa