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A leading position in the Kazakhstan subsoil market through the provision of professional, high-quality engineering consultancy services and involvement in mining and energy projects at a national level.

Our resources and strengths give us a significant competitive advantage in our main objective of providing effective support to E&P projects, including structuring, organising and managing the project at all stages, and successfully resolving subsoil use issues throughout the life of the project.

Modelling and Resource EstimationinRoll Front Deposits. The Use of Leapfrog to Assess the Quality of Production Unit Development

Dear colleagues, we would like to share with you the presentation by Igor Karchevskiy, Lead Engineer of Two Key LLP, which he gave at the Seequent Users Conference at MINEX Kazakhstan 2022.

The topic of the presentation: Modelling and Resource Estimation in Roll Front Deposits. The Use of Leapfrog to Assess the Quality of Production Unit Development.

The presentation focuseson the analysis of the state of technical and production support of the production level in a selected production unit.

This method is based on the study of the dynamics of changes in the initial parameters of the ore body during the in-situ leaching process. The information is processed using field and technogenic factors to create geofiltration diagrams, which serve as a basis for the construction of conjugate three-dimensional geological and hydrodynamic models of the dynamics of the leaching process.

Based on the models created the formation of residual reserves that are not involved in the mining processfor a number of reasons is recorded. As a result, after identifying the causes of the formation of problem zones of the operating wellfield and determining the location of the remaining reserves, recommendations will be developed to increase the efficiency of block mining and the inclusion of reserves located in stagnant zones.

Geological data and data from process wells are used as the initial database for the modelling.

The results of the hydrodynamic modelling are “freeze-frames” of metrological percentage distribution patterns at specific points in time. The interval between the “frames” can be between one month and one day of operation of the production unit.

As a result of modellingthe leaching process based on the hydrodynamics analysis, the areas of the ore body that are partially or completely not included in the mining contour, i.e.,the stagnation zones, can be identified. The mineralisation located in these areas is, in fact, the company’s internal resourcein terms of production.

Following such a comprehensive analysis at one of the sites studied as part of the research work, a report was prepared which containsconclusions on the operation of the unit and recommendations for optimising the uranium sulphuric acid leaching process.

The conclusions drawn in the report were confirmed by two wells and, based on the recommendations made, additional reserves of 5 tonnes were recovered from the stagnant zones identified by the modelling.

It can beconcluded that the conjugate three-dimensional and hydrodynamic modelling allows companies to

  • Obtain additional profits when working out the stagnation zones with high profitability in relation to the invested funds.
  • Obtain additional profits from the installed capacities through a longer operation period with a high rate of return at the processing stage.
  • Extend the life of a mine.
  • Detect, prevent and correct deficiencies in mining operations.
  • Increase production in production units that have not achieved their planned recovery rates or to confirm the depletion of the reserves in a production unit by recalculating reserves based on revised data.

If you want to receive a full presentation of the report, write to us

    Two Key Receives a Diploma for First Successful Defence of Leapfrog Project at SRC RK

    On the eve of Geologist’s Day, Two Key received a diploma for the First Successful Defence of Leapfrog Project at the SRC RK.

    At the end of 2018, the reserves of the Sarykum anthracite deposit in Karaganda Region were included in the state balance by Two Key specialists in the SRC RK: 400 million tonnes in the C2 category (inferred reserves) and approximately the same amount of probable resources in the P1 category. The work was carried out using the #Leapfrog software package.

    Many thanks to Seequent for the successful collaboration!

    10th Anniversary #Mining and Geological Forum #MINEX-2019

    The 10th Anniversary #Mining and Geological Forum #MINEX-2019 was very comprehensive and provided a platform for dialogue on current issues related to the work of the industry. Production, technology, human resources, and other potential risks were the topics of reports and discussions at the meetings.

    This is not the first time that TWO KEY has participated in large-scale events of profiled importance. And this time at the 10th #Mining and Geological Forum #MINEX-2019, the General Director of our company – #Nikolay GennadyevichKamenskiy – and the delegates were awarded a commemorative certificate as the first people in the country to use new software to estimate reserves #SMR