Core Lab recently deployed its proprietary SpectraStim™ thru-pipe top-of-cement tracing technology for a major deepwater operator, successfully confirming zonal foamed cement coverage in riserless completions and satisfying offshore regulatory requirements.
Riserless cementing is a cost-effective technique commonly used offshore to set conductor and surface casings in areas where unstable seabed conditions or shallow gas hazards exist. In these environments, lightweight, low-density foamed cement is often required, but verifying that the cement has achieved adequate zonal coverage is critical for regulatory compliance and operational confidence. Traditional cement bond logs are notoriously ineffective for this evaluation due to foamed cement’s low acoustic impedance, leaving operators without a reliable verification method.
SpectraStim™ tracing confirmed zonal coverage and satisfied offshore regulatory requirements in a cost-effective manner. For operators working in riserless environments, this field application demonstrates a proven path to cement evaluation confidence where traditional methods are not viable.
“Ensuring zonal cement coverage is critical when using foamed cement in offshore surface casings, especially in unstable seabed conditions or shallow gas environments. While traditional cement bond logs fall short, SpectraStim® tracing reliably confirms zonal coverage and meets offshore regulatory requirements. It’s a cost-effective solution our clients can trust.”
– Marc Peacher, Account Manager | ProTechnics, Core Lab
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