Defined area and depth range
Coverage is matched to the area of operation and the vertical range required for the drilling program.
IFR1
Local crustal refinement for directional drilling.
Monarch IFR1 products add regional 3D vector corrections and depth-dependent uncertainty estimates to global reference models such as HDGM2027, for defined areas and depth ranges.
Why IFR1
Local magnetic detail beyond the global reference.
Global reference models provide the large-scale magnetic field. IFR1 incorporates regional magnetic survey data to resolve additional crustal structure across the area and depth range of operation.
Figure details and sources
30 × 30 km region on a shared color scale. Data include U.S. Geological Survey (USGS) magnetic observations and broader international geomagnetic datasets.
Regional product
Regional magnetic corrections for your operations.
Monarch develops IFR1 products for areas with suitable magnetic survey data. Coverage and delivery can be tailored to operational requirements, including regional 3D cubes for multiple wells.
3D vector corrections
Corrections are provided relative to the agreed reference model throughout the modeled volume.
Depth-dependent estimates
Model-uncertainty estimates accompany the correction and account for changes with depth within the modeled volume.
Magnetic survey sources
Products may use suitable public, licensed, or customer-provided magnetic survey data.
Validation
Independent checks are built into IFR1 production.
Monarch uses two independent modeling approaches. Agreement between the results provides a strong internal check on the product, while differences help inform modeling uncertainty. Where suitable independent observations are available, they provide an additional external validation.
Magnetic survey data
Independent result comparison
Independent observations, where available
Validated IFR1 product
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Getting started
Start with the area of operation.
Monarch can evaluate the data availability, production requirements, and appropriate coverage before defining the final IFR1 product.
Geographic coverage
Provide the area of operation as a boundary, coordinates, or other suitable geographic definition.
Vertical range and intended use
Define the depth range and operational requirements the IFR1 product needs to support.
Available magnetic data
Share relevant survey data and metadata if available. Monarch can also evaluate appropriate public or licensed data sources.
IFR1 coverage
Need local crustal refinement for an area of operation?
Contact Monarch with the area and depth range you need to cover. We can evaluate available data and discuss the appropriate IFR1 product.