Exploration and evaluation of lignite deposits
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The evaluation of a lignite deposit begins with the systematic collection of geological, geophysical, geotechnical and hydrogeological data. This information forms the basis for the development of detailed three-dimensional subsurface models.
Our experts integrate drilling data, borehole measurements, seismic data and other geophysical information into digital deposit models. This enables seams, faults and other geological structures to be accurately represented and quantified.
We use modern software solutions such as Petrel® to interpret lignite deposits. In doing so, we integrate data from 2D and 3D seismic surveys, boreholes and borehole measurements to create a consistent digital subsurface model.
Within the resulting block models, geological, petrophysical and quality-related parameters can be spatially distributed and statistically analysed. This enables a robust resource estimate as well as a transparent assessment of the deposit in accordance with internationally recognised standards.
Digital modelling increases planning reliability and provides a robust basis for investment decisions and subsequent mining planning.
Precise 3D models enable the targeted planning of exploration and confirmation drilling. Based on the deposit model, we define suitable drilling entry points and optimal drilling paths.
Close collaboration with drilling contractors ensures that the information gained is maximised and that available resources are used efficiently. In this way, we help our clients to reduce uncertainties and develop projects in a cost-effective manner.
Talk to our experts about the exploration and evaluation of your lignite deposit.
The methods employed – geological exploration, geophysical surveys, resource modelling and deposit assessment – can be applied to a variety of geological settings.
Our geologists, geophysicists and engineering teams work together on an interdisciplinary basis, drawing on extensive international project experience. In this way, we lay the foundations for sustainable and commercially successful raw materials and energy projects.
A lignite deposit is a geological occurrence of lignite that is investigated and assessed in terms of its size, quality and economic viability.
The assessment is based on drilling, geophysical surveys, geological analyses and digital 3D deposit models. Resources and economic potential are derived from these.
3D models enable the spatial representation of ore bodies and geological structures. They improve resource estimates, risk assessments and the planning of drilling and mining projects.
Internationally, the JORC Code, NI 43-101 and the USGS Resource Classification Programme, amongst others, are used for the classification of resources.
Typical data sources include boreholes, core samples, geological mapping, seismic surveys, gravimetry, magnetic surveys, geoelectric surveys, and hydrogeological and geotechnical investigations.
