Services provided

Drill core description / underground mine
  • Geomechanical monitoring, investigation and conservation of evidence
  • Solution mining
  • Consulting & monitoring
  • Prospection of deposits, assessment and ressource estimation
  • Geological & mineralogical characterisation of a site
  • Old mines & securing of shafts, redevelopment of old mines
  • Project assessment
  • Feasibility studies
  • Mine planning & consulting
  • Closure and reclamation concepts

Geomechanical monitoring & investigation

Geomechanical monitoring and investigation, conservation of evidence and documentation.

Geomechanical monitoring and investigation of underground cavities

  • Hydraulic fracturing measurements
  • Measurement of convergence
  • Extensometer measurements
  • 3D displacement measurements
  • Camera sounding

Conservation of evidence, documentation and testing of back fill materials

  • Photo documentation
  • Sampling and examination
  • Dynamic load plate test according to TP BF-StB, B 8.3
  • Dynamic probing according to DIN 4094
  • Measurement of back fill densities

Automated monitoring equipment with long distance data transfer

  • Design and set up of self-sustaining measurement equipment e.g. for monitoring of solution inflows and brine levels,
  • for monitoring of displacement and deformation as well as stress
  • Design and set up of measurement stations with automatic warning mechanisms and long distance data trasfer e.g. via mobile networks
Underground survey
Big bag back fill (conservation of evidence, assessment)
Assessment, underground conservation of evidence
Geomechanical monitoring - proof of back fill stability
Geomechanical monitoring - proof of back fill strength/stability
Geomechanical monitoring - hydro-frac measurement

Solution mining

The application of the solution mining method for the extraction of carnallitite is accepted state of the art; it was designed and developed by the former potash research centre - the predecessor of K-UTEC AG Salt Technologies. The first extraction of carnallitite by solution mining worldwide has been operative at the Kehmstedt deposit in Germany for the last 30 years. This made it possible to collect extensive knowledge about this special mining extraction method.

For the mining of carnallitite in areas with sensible eco-systems, solution mining is the only suitable and appliable method that satisfies the authorities' demands. Solution mining is a safe method when cavern design and layout of the cavern field are based on established standards. The regulation of the solution mining field's development and of the regime with hot and cold dissolution in the caverns make a mining extraction without emmissions possible. This ensures a high recovery rate of the mineral resource in urban or ecologically sensitive areas with a minimal impact on the environment.

Based on more than 60 years of experience in the potash and salt industry K-UTEC AG can offer a full service for solution mining, geological modelling, resource and reserve analysis, geological investigations, geomechanical and chemical analysis as well as basic engineering for solution mining and processing.

We deliver and service the equipment needed for the operation of a solution mining field (blanket control system and seismic monitoring system) during the start up of a facility or a solution mining field. We can additionally offer training for the future operation staff at the respective facilities.

Blanket control systems

Blanket control systems (level control systems) are mainly used for solution mining of carnallitite in areas with sensible eco-systems. Solution mining is the only suitable and appliable method to mine carnallitite that satisfies the authorities' demands. The blanket control system was developed to monitor and regulate the dissolution level in a solution cavern.

Blanket control systems

Blanket control system 6 5/8"

  • in operation for more than 20 years
  • titan electrodes incl. PTFE insulation and steel protectors for long operation and running times
  • fitting common 6 5/8" API piping systems
  • max. measuring range 7.5 m
Measuring and regulation unit for the 6 5/8" system
6 5/8" blanket control system
6 5/8" blanket control system
Titan electrode of the 6 5/8" system

Blanket control system 4 1/2"

  • proven quality and easy handling
  • 10 titan electrodes for high resolution
  • electrode system completely steel coated
  • fitting 4 1/2" API piping systems
  • max. measuring range 5.0 m
Measuring and regulation unit for the 4 1/2" system
4 1/2" blanket control system
Measuring cable 4 1/2" system
Detail of the blanket control system's 4 1/2" piping

Consultation & Monitoring

Consultation

  • Geomechnical monitoring, reports and proof of stability
  • Geotechnical monitoring and assistance
  • Geological investigation and assessment
  • Measures for the conservation of evidence
  • Assessment of back fill material for underground utilisation and underground dumping
  • Hydrofrac measurements
  • Long term safety verifications for underground utilisation and underground dumping
  • Consultation for mine development works

Monitoring

  • Planning, construction, installation and service of geotechnical and hydrological monitoring systems
  • Level of fluids and solids in shaft pipes
  • Measurement of solution levels and densities in flooded mines
  • Inflow monitoring devices
  • Planning, construction, installation and service of seismic monitoring devices, facilities to monitor fluid inflow and control units for cavities
  • Automated monitoring devices with high distance data transmission

Deposit prospection, assessment & resource estimation

Deposit prospection

  • Prospection, planning of prospection concepts
  • Cost estimation and calculation of the prospection expense
  • Monitoring of local prospection works
  • Supervision
  • Geological, mineralogical analysis
  • Control of building works
  • Evaluation, documentation and interpretation of:
    - geological, mineralogical data,
    - hydrogeological and hydraulic results (pumping tests),
    - geophysical results (bore hole measurements)
  • Assistance during bore hole drilling
  • Evaluation / assessment
  • Control and assistance during geophysical measurements
  • Evaluation of pumping tests
  • Preparation of geological models
  • Preparation of deposit models
  • Estimation of resources and reserves
  • Reporting according to international criteria (CIM, JOEC, NI 43-101)
  • Evaluation and modelling with Voxler, Surfer, RockWorks, GeoDin, Tec-Corim, WellCad, etc.
Preparation of geological profiles
Preparation of block models
Preparation of 3D models
Summary of project results
Preparation of 3D drill hole location maps
Preparation of aquifer thickness maps
Summary of project results
 

Prospecting through drilling
Image of drill cores
Geophysical prospecting
Geology

Exploration

Concept studies / concept development

In a deposit exploration project the preliminary stage of a feasibility study is the development of a geologic prospecting concept. It has to describe all necessary operations and methods precisely to receive detailed information about the deposit to be prospected.

These geological informations serve as input data for the creation of a model (deposit model) and the estimation of the available resources and/or reserves.

Prospecting of the deposit

Prospecting of an unknown or a less known deposit starts with the implementation of a prospecting concept on site and the collection of all geologic data and information gained (generation of a data pool).

The prospecting of a deposit can cover for example the following tasks:

Geological prospecting

  • Data research
  • Surface mapping (geological, topographical)
  • Bore hole prospecting with defined goals, trenches
  • Recovery of drill cores and geological drill core description
  • Recovery and analysis of solid samples (drill core material) and fluid samples (f.e. brine)

Hydrological and hydrogeological prospecting

  • Data research
  • Analysis of hydrological data
  • Execution and analysis of pumping tests
  • Piezometer measurements
  • Permeability tests
  • Sample recovery and analytics

Geophysical prospecting

  • Data research
  • Definition of suitable geophysical methods fitting the task (geoelectrical tomography, reflection and/or refraction seismics, etc.)
  • Definition of a prospecting profile
  • Consideration of combining different methods
  • Data collection and analysis

In addition consultation and coordination of the operations are carried out on site and always in reconciliation with the client.


Evaluation / Assessment

Based on the prospecting data gained an assessment and classification of the deposit(s) in question is carried out. The classification of the deposit(s) is realised according to effective national and/or international guide lines (standards and codes).


Estimation of resources and reserves

In mineral economics a resource is the highest available amount (concentration) of an ore or any other mineral in the Earth's crust.

This amount does not give information about the size of the deposit that could be extracted by mining.
This amount is called reserve basis. It is the part of the resource that fulfils the minimal specific physical and chemical criteria for the current state of the art of mining and production including concentration, quality, thickness and depth.
The reserve basis includes mineable reserves at the time as well as reserves that could be mined within a certain time period assuming technical and economical developments, all of which can be extracted economically.

Also the reserve basis does not give information about the actually available amount for mining. This amount is called reserve. The reserve is the amount within the identified reserve basis that can be at the time of determination economically and technically extracted or produced.

 

Our services:

  • Analysis of all relevant geological, mineralogical, hydro geological, chemical and geophysical data
  • Establishment of complete data sets
  • Development of geological 3D models
  • Development of 3D models for mineral and element distribution/concentration
  • Estimation and designation of resources and reserves
  • Modelling with Surfer, Voxler, RockWorks
Geological modelling
2D map illustration of mineral and element contents
3D illustration of mineral and element contents (block model)

Geological & mineralogical characterisation of mining locations

Our services:

  • In situ sampling, geological drilling core analysis
  • Mineral analysis and examination
  • Geological mapping and geological-mineralogical classification
  • Geological modelling
  • Examination and assessment of mine gases, salt brines and mine waters
Cut section
Assistance during drilling
Geological analysis and documentation of drill cores

Old mines & securing of shafts

Old mines

Prospecting and assessment of a location / Securing and redeveloping of mining claims and shafts / Monitoring considering safety and economical aspects

  • Geomechanical and hydrological exploration and assessment
  • Documentation of shafts and bore holes by video and photography
  • Complex exploration and site assessment of potash and rock salt mines
  • Project plans for measures to secure abandoned mines to make them safe
  • Safety measures and redevelopment in case of hazardous situations
  • Examination of geology mineralogy and kinetics of solution
  • Self-containing monitoring stations containing mechanisms for warning signals and alarm

Securing of shafts

Our services:

  • Assistance and control during building works
  • Participation at building consultations
  • Calculation, preparation of invoices
  • Inspection, sampling
  • Geological and geotechnical classification
  • Concept development

Current examples:

  • Securing of shaft Immenrode (2009/2010)
  • Securing of shaft Ludwigshall (2012/2013)
Shaft with bucket (looking towards the surface)
Concept for securing and filling of a shaft

Mine planning & consultancy for mining

Consultancy for mine development work, long term safety verifications for underground dumps and underground utilisation

Consulting and assistance:

  • Dimensioning of the excavation, mining system and optimisation, mine dimensioning
  • Concepts for closure as well as planning of sealing or closure constructions
  • Safety analysis for post production phases of mines
  • Verifications for the operation of underground dumps and underground utilisation
  • Preliminary studies, feasibility studies, economic examinations
Mine planning & consultancy on surface
CAD planning
Mine planning & consultancy underground

Concepts for closure and reclamation

  • Monitoring system at Bischofferode mine in the post-operational phase
  • Control of back fill works and report about back fill facilities e.g. in the mines of Bleicherode-Sollstedt, Sondershausen and Teutschenthal
  • Reclamation of closed and secured mines, mined caverns and solution mining fields
Installation of a monitoring system and control of fluid levels e.g. in Bischofferode mine (post production phase)