
COREMAGNETICS has provided high quality paleomagnetic services for the oil and related industries since 1991. We operate a modern paleomagnetic laboratory, equipped with state-of-the-art instrumentation and located in an environment that is free from magnetic noise, in the English Yorkshire Dales. We were the first commercial company in the UK to offer paleomagnetic services dedicated specifically to the needs of the oil, mineral exploration, hydrogeology and engineering geology industries. Our staff have a wide range of experience in these fields.
COREMAGNETICS provides a unique range of services focused on the directional flow properties and geometry of hydrocarbon reservoir sandstones. Many important directional properties of reservoir sands are determined from observations on core samples. These include the orientations of sediment fabrics and sedimentary structures, which provide information on sediment input directions and sand fairways. They also include the orientations of fracture planes, which can strongly influence the flow of hydrocarbons through the reservoir.
Since few cores are oriented relative to North at the time of drilling, it is necessary to re-orient the core, so that the true geographic orientation of these features can be determined. COREMAGNETICS has developed and refined the methodology to achieve this core re-orientation by using the remanent magnetism of the formation to define the direction of North within the core. The measurements are fast and accurate and this technique has been applied by COREMAGNETICS on behalf of most major oil companies as part of their exploration and production programs.
COREMAGNETICS has pioneered the use of anisotropy of magnetic susceptibility (AMS) analyses for determining grain fabrics in reservoir formations. The results provide key information on sediment dispersal patterns within the reservoir unit and place important constraints on reservoir geometry and architecture and the lateral extent and connectivity of sand bodies.
Our newly-developed MAGPORE technique determines the three-dimensional pore fabric of the formation, from which the direction of maximum permeability can be reliably predicted. Accurate permeability anisotropy information is vital for the development of refined reservoir models and to improve production through enhanced recovery programs. This information is now readily obtainable by the MAGPORE technique.
COREMAGNETICS provides services also in magnetostratigraphy and high-resolution susceptibility logging for core correlation and reservoir zoning. We also carry out rock magnetic measurements (including magnetic susceptibility, remanent magnetism and Q-ratio determinations) on core plugs, drill cuttings and outcrop samples, for interpreting aeromagnetic survey data. Our state-of-the-art laboratory is supported by unique in-house software, which optimises the acquisition, presentation and interpretation of paleomagnetic information.
