Views on drilling effectiveness and sampling estimation for solid ore minerals

M. Rabatuly; S.A. Myrzathan; J.B. Toshov; J. Nasimov; A. Khamzaev

doi:10.31643/2026/6445.01

Authors

M. Rabatuly Abylkas Saginov Karaganda Technical University
S.A. Myrzathan Abylkas Saginov Karaganda Technical University
J.B. Toshov Islam Karim Tashkent State Technical University
J. Nasimov Institute of Mineral Resources, University of Geological Sciences Tashkent
A. Khamzaev Navoi State Mining and Technological University

DOI:

https://doi.org/10.31643/2026/6445.01

Keywords:

estimation, efficiency, well drilling, solid ore minerals, criteria, drilling method, core recovery, down-the-hole cleaning, diamond bit.

Abstract

As a result of well drilling, a geological sample recovery was taken as a cylindrical rock sample. This rock sample core would be used for further study of the conditions of occurrence of ore minerals. The great practical importance of supplying reliability and representativeness of geological surveys is the assessment of drilling quality and effectiveness. We were attempting to study the core recovery measuring ways for efficiency estimating of drilling for solid minerals, which will be submitted in this article. Also analyzed existing methods, their advantages and disadvantages. The RQD (Rock Quality Designation) measuring method we suggest as criteria is the best way of unbiased effectiveness assessment. It is necessary to closely research the lithological section finished by drilling wells, and the geological, technical and hydrogeological conditions of the explored fields to solve economic efficiency at the down-the-hole cleaning method. In-depth study methodology of the main elements of the “diamond bit-rock” pair and the conditions of the normal drilling process can be the basis for successful implementation of geological tasks by drilling personnel. Currently uses three main methods of core recovery measuring (linear, volume, weight). However, they did not consider coefficients of fragmentation, fracturing and loosening and that is why the RQD method has a clear advantage over the traditionally used methods. The RQD method has already been successfully introduced to the geological exploration sites of the Ministry of Mining Industry and Geology of the Republic of Uzbekistan.

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Author Biographies

M. Rabatuly, Abylkas Saginov Karaganda Technical University

Ph.D., Acting Associate Professor of the Department of Development of Mineral Deposits of Abylkas Saginov Karaganda Technical University, 100027, The Republic of Kazakhstan, Karaganda, Ave. Nursultan Nazarbayev, 56. ORCID ID: https://orcid.org/0000-0002-7558-128X

S.A. Myrzathan, Abylkas Saginov Karaganda Technical University

Master's student of the Department of Development of Mineral Deposits of Abylkas Saginov Karaganda Technical University, 100027, The Republic of Kazakhstan, Karaganda, Ave. Nursultan Nazarbayev, 56. ORCID ID: https://orcid.org/0009-0008-8248-9087

J.B. Toshov, Islam Karim Tashkent State Technical University

Doctor of Technical Sciences, Professor of Islam Karim Tashkent State Technical University, 100095, Republic of Uzbekistan, Tashkent, Almazar district, Universitetskaya Street 2. ORCID ID: https://orcid.org/0000-0003-4278-1557

J. Nasimov, Institute of Mineral Resources, University of Geological Sciences Tashkent

Ph.D., Senior researcher of Institute of Mineral Resources, University of Geological Sciences, 100125, Republic of Uzbekistan, Tashkent, A Olimlar str.64A. ORCID ID: https://orcid.org/0000-0002-4495-2674

A. Khamzaev, Navoi State Mining and Technological University

Candidate of Technical Sciences, Associate Professor of the Department of Mining Electromechanics, Navoi State Mining and Technological University, 210100, Republic of Uzbekistan, Navoi, Galaba St 27. ORCID ID: https://orcid.org/,0009-0005-4362-2488

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