Soil Instruments were awarded a contract to supply instrumentation to Geoscan ( a Swiss based Instrumentation contractor), for the monitoring of settlement, pore water pressure and lateral ground movement on Chevron's new Gas to Oil Plant in Escravos on the coast of Nigeria.

The plant was being constructed alongside an existing Chevron Oil refinery plant. The site, a former mangrove swamp, was being prepared by the placing of several hundred thousand tons of hydraulic fill of dredged sand. Settlement due to the fill was expected to be in the region of 5 metres; to hasten this settlement a large number of deep band drains were installed.

As part of Soil Instruments' contract, an engineer was required to be on site to assist and supervise the instrumentation installation. The installation consisted of 11 clusters of instruments; at each cluster 6 Vibrating Wire Piezometers were installed, between 5 and 50 metres deep, in addition to a deep Magnetic Extensometer, normally installed to a depth of 65m. At additional locations around the perimeter of the site Inclinometers were installed to monitor lateral ground movement. These were also installed to depths of 50+ metres.