Horizon Geosciences

Survey and geotechnical services

Case Study, KSA

Client: McDermott Arabia Company Ltd
Year: 2014

Our requirement was to investigate 11 platform sites and a number of locations for buried cables and pipeline. With water depths at 5-12m, Horizon utilised the self-propelled jack-up platform (Aqua Jack 1) with a TD500 rig mobilised onto it. Boreholes were drilled to 60m (platform) and 10m (pipeline and cable) using Geobor S wireline rotary techniques to maximise recovery of the samples.

In order to expedite testing and results, a fully equipped containerised geotechnical testing laboratory was mobilised on a support vessel so that key tests could be carried out offshore and around the clock. In-house proprietary methodologies were used to provide timely, relevant pile capacity assessments and liquefaction analysis. Plaxis 3D was used to undertake precise modelling of mudmat settlement.

Grant Woodyard, Engineering Manager for Horizon said;

‘We used in-house proprietary methodologies to provide timely, relevant pile capacity assessments and liquefaction analysis‘

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