Vol 4, No 3 (2022)


Oil and gas bearing complexes of the pre jurassic deposits of Southern Mangistau and their characteristics

Boranbayev K.K., Boranbayev A.K.


The article is devoted to the features of the geological structure on the example of the analysis of the pre-Jurassic complex of the South Mangistau with recommendations for determining the further direction of prospecting and exploration.

Kazakhstan journal for oil & gas industry. 2022;4(3):3-9
pages 3-9 views

Lithological and stratigraphic characteristics of the upper permian and triassic deposits of the Karachaganak oil and gas condensate field

Pronin N.A., Pronin A.P., Dzhumabaev T.E., Uteev R.N.


The article considers the results of part of the research, groundworkss, as well as the experience gained in the implementation of the project to study the core of the Triassic and Tatar horizons of the Karachaganak field. This project included both direct work with core material, conducting a series of laboratory studies on it in order to determine the conditions of sedimentation, understanding their extent, determining the age of rocks, their qualitative and quantitative characteristics, and facies modeling to obtain facies maps, correlation schemes and profiles. One of the most interesting and important stages of the project implementation was biostratigraphic analysis and the construction of a correlation scheme on its basis in order to conduct a qualitative correlation of the section, which is the basis for identifying the conditions of sedimentation and understanding their strike in space.

Kazakhstan journal for oil & gas industry. 2022;4(3):10-21
pages 10-21 views

Possible ways to detect non-structural traps in the Central part of the Caspian sea

Imangaliuly I.


This article considers the prospects for the search of non-structural traps in the Jurassic sediments of the Central Caspian Sea of Kazakhstan. Due to the fact that the territory was not fully explored by 3D seismic and well drilling, additional geological and geophysical data obtained during the study of an analogous nearby field were used in the work.

Kazakhstan journal for oil & gas industry. 2022;4(3):22-29
pages 22-29 views

Prospects for searching for hydrocarbon deposits in the Paleozoic complex of the South Torgai basin

Begimbetov O.B., Kenessary A.Z., Koldey M., Dauletov A.B., Urekeshev N.S., Sharipov Z.K.


Intensive development of discovered oil and gas fields since the early 90s.of the last century, mainly associated with structural traps in Jurassic-Cretaceous complex, to date has led to a reduction in proven hydrocarbon reserves in the South Torgai sedimentary basin. The prospective potential for an increase in the resource base of the studied region can be focused within the deposits of pre-Mesozoic complex.

Historically it was believed that the South Torgai sedimentary basin has a two-deck structure: a sedimentary cover of the Mesozoic-Cenozoic age and an underlying crystalline-folded basement of the Paleozoic-Proterozoic complex. The oil and gas potential of the Paleozoic complex in the region has been proven by obtaining direct signs of oil and gas in the core, oil and gas shows, up to industrial oil flows on a limited number of areas within the weathering crust zones.

Analytical studies of recent years indicate a significant heterogeneity of the Paleozoic-Proterozoic complex, where promising structures of the Upper Paleozoic quasi-platform complex, represented by carbonate rocks, may be present. This article is focused on the analysis of a new and previously unexplored potential oil and gas complex of deeper-lying Paleozoic sediments that are of interest for setting up geological exploration.

Due to the confidentiality policy, the names of wells, fields, coordinates and other detailed information are hidden. The article was formed to demonstrate the concept of the prospects of the heterogeneous Paleozoic-Proterozoic complex.

Kazakhstan journal for oil & gas industry. 2022;4(3):30-38
pages 30-38 views

Overview of some ultra-deep oil and gas projects that have not achieved their initial goals

Khafizov S.F., Syngaevsky P.E.


A number of articles were published in the journal "Bulletin of the Oil and Gas Industry of Kazakhstan" in 2020–22 with the participation of the authors, , in which the experience of prospecting and exploration and development of deposits at ultra-deep depths (more than 6000 m) was analyzed. Since the industry has accumulated a significant number of successfully implemented ultra-deep projects, it may seem that such projects, in principle, have an increased chance of success. This is not so: when they are implemented, geological, technological and, most importantly, organizational and commercial problems arise even more often than when developing more traditional reserves.

The several non-commercial projects considered in this paper cover almost the entire spectrum of possible cases of various structural and tectonic conditions: foothill depressions and intracraton basins, coasts, offshore and deep-water offshore areas. Stratigraphically, the time interval covers deposits from the Miocene to the Lower Paleozoic (Silurian) and a wide variety of lithofacial complexes. Based on the generalization, a list of possible reasons for making unsuccessful decisions is derived.

Kazakhstan journal for oil & gas industry. 2022;4(3):39-68
pages 39-68 views

Elaboration of mending additives for the cement sheath repair

Agzamov F.A., Ismagilova E.R., Beshir M.A.


The dynamic loads and internal stresses applied onto a well during its operation period, gradually leads to deterioration of the cement sheath that usually exists behind the casings. Such mechanical and chemical exposure causes the cement to develop severe cracks that enables cross feeds behind casings and uncontrollable flow between formations leading to oil-gas mixture and migration of hydrocarbons into freshwater aquifers causing immediate harm to local water sources [1], affecting the zonation capability of the cement itself behind the casings.

This issue has been in the industry of oil and gas for ages, leading us to investigate the possibility of maintaining the integrity of the cement stone behind the casings through the principle of ‘’self-healing’’ materials, through this principle a self-healing cement was formulated adding secret agents into the ordinary cement powder which will be able to cure cracks in the cement stone under special conditions without human intervention. This can be an effective measure for loss of well integrity prophylaxis and eliminates well shutdowns for well workover operations.

Kazakhstan journal for oil & gas industry. 2022;4(3):69-75
pages 69-75 views

Prevention and removal of hydrate formation at the Amangeldy gas field

Daribayev Y.A., Kabdushev A.A.


Currently, antihydrate inhibitors such as methanol and diethylene glycol are used to reduce the temperature of hydrate formation during the transportation of gas and gas condensate in in-field gas pipelines, i.e. in plumes. If the desired results are not obtained during the production of gas and gas condensate without the use of anti-hydrate inhibitors (during operation, a certain volume of produced gases and condensate is blown onto a flare or a bleeder stack), this may, in turn, lead to a shutdown of the well, as a result of which the volume of production will also decrease.

Kazakhstan journal for oil & gas industry. 2022;4(3):76-83
pages 76-83 views

Study the influence of the carbon dioxide content in the composition of the working agent of hydrocarbon gases on the condensates evaporation

Fataliyev V.M., Hamidov N.N.


This article analyzes the volatility of retrograde condensate when a gas condensate field is exposed to “dry” natural gases containing carbon dioxide (CO₂), which is associated with some of its advantages over other non-hydrocarbon gases.

The indicators of the process of impact on the bottomhole zone of a producing gas condensate well by "dry" gas enriched with carbon dioxide are studied, taking into account the influence of the physicochemical and thermodynamic properties of the gas condensate system, as well as the thermobaric conditions of the process itself.

"Dry" hydrocarbon gas containing carbon dioxide more actively evaporates retrograde condensate compared to other non-hydrocarbon gases. However, to increase the efficiency of this process, one should take into account the number of injected gas contacts and the temperature of the bottomhole zone.

Kazakhstan journal for oil & gas industry. 2022;4(3):84-91
pages 84-91 views

Implementation of automated selection of downhole pumping equipment in the ABAI information system

Abdrakhmanova G.S., Danabayev N.S., Utemisova L.G.


This article provides a description of the main approaches and principles for constructing individual algorithms used in the "Selection of downhole pumping equipment" module of the ABAI information system. The calculations were based on generally recognized methods for constructing an inflow curve, strength calculation of the rod string of a sucker rod pumping unit, etc.

The main goals of creating a module for the selection of downhole pumping equipment, in particular, the subsystem "Selection of a sucker rod pump" are to increase the efficiency of the mechanized well stock, reduce premature failures of downhole pumping equipment due to the correct calculation of the rod string, pumping equipment mode, automation of the selection of downhole pumping equipment due to the mass use of the program by process engineers when working with a mining mechanized fund.

The calculation algorithm, concise functionality, friendly interface in the module are built taking into account the work of field process engineers and shop foremen, in the conditions of making operational decisions on the selection of downhole pumping equipment in case of current failures.

The authors compared the selection results in the process of implementing the module with generally recognized foreign software systems.

Kazakhstan journal for oil & gas industry. 2022;4(3):92-105
pages 92-105 views

Approbation of methods for determining the coefficient of the difference in the physical properties of oil and and displacing agent

Zhaikanov A.B., Zhubaniyazov S.K., Sagyndikov M.S.


The article presents the results of approbation of the methods of determining the coefficient of difference of physical properties of oil and displacing agent (µ0), proposed by Lysenko V.D. on the example of the Kalamkas field. Determination of this parameter is necessary for designing and improving the development based on direct oilfield data. The coefficient of difference between the physical properties of oil and the displacing agent (µ0) was determined by several methods, which showed high convergence, thereby confirming the theoretical validity in practice. The presented methods were successfully applied for the first time on the example of the Kalamkas field.

Kazakhstan journal for oil & gas industry. 2022;4(3):106-113
pages 106-113 views

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