Vol 4, No 3 (2022)
- Year: 2022
- Articles: 6
- URL: https://journal-vniispk.ru/2707-4226/issue/view/6604
Articles
Oil and gas bearing complexes of the pre jurassic deposits of Southern Mangistau and their characteristics
Abstract
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
3-9
Lithological and stratigraphic characteristics of the upper permian and triassic deposits of the Karachaganak oil and gas condensate field
Abstract
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
10-21
Possible ways to detect non-structural traps in the Central part of the Caspian sea
Abstract
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
22-29
Prospects for searching for hydrocarbon deposits in the Paleozoic complex of the South Torgai basin
Abstract
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
30-38
Overview of some ultra-deep oil and gas projects that have not achieved their initial goals
Abstract
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
39-68
Prevention and removal of hydrate formation at the Amangeldy gas field
Abstract
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
76-83