There was shown that LLP "SPC "Geoken" along with best models of foreign electro-prospecting equipment from famous manufacturers (Zonge (USA), GDD and Phoenix Geophysics (Canada)) also successfully uses electro-prospecting equipment developed in Kazakhstan. There is some examples from real production projects completed by using this equipment. © 2018European Association of Geoscientists and Engineers EAGE

In this article, the authors review the practical experience of applying the VIP (vector induced polarization) method for geophysical surveying of one of the properties in Central Kazakhstan in 2017. The survey results demonstrate a significant reduction in time and cost associated with performing large area surveys achieved by using special IP arrays. The surveys carried out made it possible to rapidly detect abroad area of chargeability response which was followed up by deeper penetrating DDIP surveys to test for depth extent. © 2018European Association of Geoscientists and Engineers EAGE

Purpose. The research is aimed at creating a highquality geophysical basis for the additional geological study of Central Kazakhstan in determining the geological structure of the study area, identifying promising areas for further geological exploration, as well as analyzing the anomalous distribution of various minerals. Methodology. The research uses the methods of aeromagnetic, airborne gammaray spectrometry and gravimetric (ground) surveys. The obtained new airborne geophysical data are used for additional study of the geological structure of the district and the creation of a model of the geological structure of the study area. Gammaray spectrometry data analysis is conducted for detailed mapping of intrusive complexes and study of their lithological heterogeneity. Findings. The processing and interpretation of the materials of the conducted field studies in combination with the results of the geologicalgeophysical data analysis made it possible to refine the geological structure and to present a model of oreprospecting complexes in the study area. Areas with an anomalous distribution of potassium, uranium, and thorium have been identified, which make it possible to assess the structural heterogeneity of hidden magmatic massifs and to reveal a connection with gold, copperpolymetallic and raremetal mineralization. Recommendations for further detailed geological exploration, including prospectingexploration drilling, are given. Originality. Research has shown the high efficiency of airborne geophysical methods, such as aeromagnetic and airborne gammaray spectrometry surveys to study the geological structure of ore areas, and in combination with detailed gravimetric exploration to identify lithological heterogeneity of igneous and sedimentary rocks in the study area. New scientificmethodological techniques and the geological structure model based on them gave an opportunity to assess the prospect of the study area for ore mineralization.

В статье рассматривается технология вскрытия и разработки скважин подземного выщелачивания урана. Исследование направлено на повышение эффективности скважинной добычи урана за счет выбора рациональных параметров бурения и освоения призабойной зоны продуктивного горизонта с учетом гидрогеологических характеристик. Рассмотрены параметры бурения с обратной промывкой, свойства руд и промывочных растворов, а также условия подготовки геотехнологических скважин к эксплуатации.

В статье рассматривается построение трехмерной модели Акбулакского редкоземельного месторождения Северного Казахстана. Исследование связано с применением современных геоинформационных технологий, включая MapInfo, ArcGIS, GIS-Micromine, для создания 3D-моделей месторождений минерального сырья. На основе графических и расчетных данных построены каркасная и блочная модели месторождения, а также модели распределения рудных тел по разведочным профилям.

В статье рассматривается интенсификация процесса подземного скважинного выщелачивания урана с применением ингибирующих добавок. Исследование направлено на предотвращение гипсового шламования при выщелачивании урановых руд и повышение эффективности добычи в сложных горно-геологических условиях. Рассмотрены минералогический состав руд, структура шламообразующих материалов, влияние фильтрационных характеристик и подбор химических реагентов для предотвращения образования гипсового осадка.

urpose. Various negative processes occur due to the long-term development of hydrocarbon deposits on an oil and gas fields. For the Republic of Kazakhstan the task of forecasting such processes is important for further assessment of the negative consequences. The automated systems has been widely used as a tool for solving geophysical problems in an oil and gas fields. Among them the special place took the geographic information systems (GIS). This paper describes the subsystems implementation for a new GeoM geographic information system, which is created on the basis of gravity data monitoring within the one of the selected oil and gas fields. Design/Methodology/Approach. Before that study, the preliminary stages of development for the created GIS of GeoM are conditionally defined. Tese are the preparatory, the computational, the optimizing and the integration ones. Currently, the system has developed and tested a subsystem for processing the primary data of gravity data monitoring and the graphing of its results and also a subsystem for solving of the gravity direct problem by the fitting procedure. The GIS system database is implemented using an open PostgreSQL relational database. The raw geodata are stored in a PostGis environment. The applied interfaces for the system operation are clearly demonstrated. Findings. One of the newly developed GIS subsystem is the framework for the solution of the gravity direct problem with the help of the simulating annealing techniques. The main advantages of using of the simulated annealing method are summarized, as they are the fast data processing, applicability for use in the modern systems of parallel computing, and also the processing of large amounts of measured data. A schematic diagram of the common numerical algorithm of the simulating annealing technique is presented in the work. The applicability of this technique is qualitatively justified for the searching of the gravity o ptimal solutions in the created GIS. Practical value/implications. The development of GIS subsystems made it possible to improve significantly the quality and speed of the gravity data processing. The calculation subsystem allow to solve the garvity direct problem by fitting with the help of the unique procedure of simulating annealing

The solution of the gravity direct problems performs a crucial impact on the results of investigation of the gravity anomalies in oil and gas fields. The direct problem of gravimetry itself means that we have to determine the analytical characteristics of the gravitational field from a set of specified parameters of the geological medium (such as an average depth, an excess density, coordinates of anomaly sources, and other medium parameters). Evaluation of the distribution of similar parameters of anomalous bodies is extremely important for geodynamic monitoring of deposits. Within the framework of stochastic optimization techniques, a simulated annealing approach can be used to estimate the above-mentioned parameters distribution. This paper describes the implementation of the simulated annealing technique to solve a series of gravity direct problems based on gravity monitoring data. This method allows us to select the values simultaneously according to two parameters of the medium studied. The proposed method is developed as one of the subsystems of a special GIS for storing, processing, analysing, and visualizing of gravity monitoring data over the oil and gas field. The operation of the algorithm is characterized and the simulation results are given. For calculations a sequence of homogeneous spherical bodies was chosen, and their initial calculation parameters and the criterion to derive the optimal solutions are indicated. The initial parameters were the centre of the sphere x, its radius R, and the initial distribution of the gravity field ∆g, and the parameters for finding the optimal values were the values of density σ and the average depth h. The obtained results of the system showed the acceptable accuracy of the algorithm for solution of the gravity direct problem by the proposed approach. The simulated annealing algorithm made it possible to increase the reliability of the model and reduce working time for the analysis of the measured gravitational field

В статье рассматриваются геофизические признаки редкометалльной рудоносности Акмай-Катпарской рудной зоны в Центральном Казахстане. Исследование направлено на выявление критериев, позволяющих определить показатели рудоносности на основе систематизации геологических и геофизических материалов. Использованы современные методы геологии, GIS-технологии, теоретические научные подходы, анализ петрогеохимических данных и геофизических аномалий.

В статье рассматривается эффективность динамической интерпретации сейсмических данных при изучении латеральной изменчивости нефтегазоносных терригенных коллекторов. Исследование выполнено на примере одного из месторождений, расположенного в Прикаспийской нефтегазоносной провинции, в зоне сочленения Прикаспийской и Северо-Устюртской впадин. Использованы данные детальных сейсмических исследований, результаты обработки и переинтерпретации сейсмических материалов, а также кубы атрибутов PIMP, LaRho, Vp/Vs и псевдопористости.