Half Wave
Technology for pipeline inspections
Half Wave

Presentations by Halfwave at PPIM 2018, Houston tomorrow

An event that you do not want to miss!
nrv passing
ART Scan® Non Return Valve passing
Halfwave will be presenting two papers tomorrow at the PPIM 2018 in Houston.  In the presentations, Halfwave will share success stories of recent completed projects alongside with our client. An event not to be missed!

Abstracts about the upcoming presentations are as below.

[47] Minimum bore restriction in offshore liquid pipelines, by Wayne Fleury, Halfwave A/S, Øvre Ervik, Norway and Kelly P. Angelette, Shell Pipeline Company LP

Pipelines are going deeper in depth and reaching even farther in to the lower tertiary fields of the Gulf of Mexico which puts a lot of different challenges in the pipeline systems. These challenges are but not limited to steel catenary risers, flex joints at or near maximum angle of deflection, non-return valves, subsea wyes and high pressure rated topsides infrastructure all contributing to the minimum bore restriction of the asset. In 2016 Halfwave AS was approached by a pipeline operator to inspect a 74 mile 18inch liquids asset originating in deepwater Gulf of Mexico. The system is more than 150 miles in total length and produces up to 130,000BPD. The pipeline consists of two sections approximately 75 miles each. Due to the target depth of the platform and the geographical isolation of the Na Kika platform the export pipeline has a lot of special features, which lead to restrictions in bore. High pressure rated topsides infrastructure combined with requirements to base and filter material have led to a near 20% reduction in bore passing capabilities. In previous integrity programs, it was not possible to capture the restriction due to passage capabilities of existing ILI technologies. Halfwave AS and SPLC established a dialogue and integrity project to capture the pipeline threats while traversing a 20% minimum bore restriction. This paper will address the challenges involved in addressing the integrity of the Na Kika export pipeline, demonstrating the value of ART in minimum bore restrictions.

[49] External subsea pipeline inspection through coating, by Willem Vos, Halfwave A/S, Øvre Ervik, Norway
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Since 1993, Halfwave and its predecessors have been implementing wide spectrum acoustic resonance inspections to determine the integrity of mainly gas pipelines. This paper will present methods to inspect subsea pipelines that are unpiggable. ARTEMIS (Acoustic Resonance Technology External Measurement Inspection System) is an ROV-mountable inspection tool for external inspection of subsea assets including rigid and flexible pipelines, flowlines and risers. It is easy to deploy and can be installed on most lightweight ROVs. The ARTEMIS technology's ability to perform inspection through thick subsea coating will be further explained. Other technologies would require the coating to be removed from the subsea pipeline. This is both, time consuming, expensive and potentially jeopardizes the integrity of the subsea pipeline. Some examples of the inspection results will be shown to give audience an idea of the high resolutions results that can be obtained. A case study for a subsea campaign that has been recently completed will be shared as an example. The application of this technology for the area of flexible risers and flowlines inspection will be explained. Halfwave is developing a unique solution together with clients that could bring a permanent solution to the operators.