High-Resolution AeroMagnetic (HRAM) data  

Over the last 25 years, advances in areas as diverse as surveying practices, positioning, instrumentation technology, acquisition and recording computers, data processing, and presentation led to a new level of airborne magnetic data – HRAM data. Although definitions are not precise, HRAM surveys for hydrocarbon exploration are typically flown ~100m above the ground and with a flight line spacing of 400-800m. This data reveals a new 'level of resolution', when compared to more traditional surveys that were used to map basement.

HRAM surveys can be used in exploration to outline folds and faults in structurally complex sedimentary strata. It can also be used to map, with a high degree of confidence, faults and lithologies in the crystalline basement underlying sedimentary basins. The examples below show the improvements of HRAM data and the use of the data for exploration purposes.

Example 1 – The effect of increased flight line density on magnetic data quality for interpretation.
Example 2 – The power of HRAM data vs. non-HRAM for mapping in sedimentary rocks.
Example 3 – The causes of magnetic anomalies within the sedimentary section.