Products & Services

Avalon Sciences Ltd (ASL) has been working with the oil industry for over twenty years and specialises in the design and manufacture of advanced borehole seismic recording systems.

Geochain™ has proved the complete VSP digital seismic system, operating with up to 42 satellites for maximum logging and recording efficiency and was the result of over five years of research and development. The system is made up of individual satellites of our tried and tested ASR-1 borehole ASR-1 geophone of which well over one hundred are now in use worldwide. The system incorporates our GSP recorder and the 'industry standard' VSProwess software, allowing up to 42 satellites to be spaced between 1 and 75 metres apart. The array is capable of operating indefinitely in high temperature (180C) wells and, being a modular system, is easily expandable.

With this emphasis on modular components, quality and good customer service, ASL’s systems are designed with compatibility and expansion in mind. For example, customers starting with a simple analogue dual tool ASR-1 system are able to add the necessary ASR digitisers, TAS and VRS sections, plus the Geochain power panel, to make up a basic digital string. Further ASR tools (up to 42 maximum) can be added, together with tension head sections and gamma tools to make up a complete Geochain system.

Our innovative Geochain™ system has been widely used by major players in the North Sea, Gulf of Mexico, Canada and China with outstanding success and, early in 2003, was used by one service company to complete the first ever 25-level survey with conventional wireline in the Gulf of Mexico. Towards the end of 2004, Geochain systems owned and operated by BGP completed a massive 3D VSP job in the Tarim basin, China, comprising 8900 shot points at 32 levels.