A comprehensive evaluation of the productive formation collector of the Kanevskoye field

2021 ◽  
pp. 25-36
Author(s):  
I. I. Bosikov ◽  
A. I. Mazko ◽  
A. V. Mayer

At the present stage, the development of the oil and gas industry of the Russian Federation is impossible without replenishing the resource base, and therefore an urgent task is to conduct research, prospecting and evaluating petroleum potential in undiscovered areas of fields. The aim of the study is to conduct a comprehensive assessment of the reservoir of the productive formation of the Kanevskoye field. We have carried out mineralogical and petrographic studies, laboratory studies to assess the effective porosity of the core sample by the saturation method, particle size analysis, X-ray diffraction analysis. Our studies have shown that the considered initial sands under consideration, which formed the reservoir rocks of the productive horizon of the Kanevskoye field, were formed by coastal or beach type marine sediments. This is confirmed by the poorly rounded shape of the grains and the presence of glauconite in the rocks. The studied core sample is a fine-grained glauconite-feldspar-quartz sandstone with an admixture of aleurite fraction, with semi-rounded grains, pelitic cement, basal and porous-basal, silt-psammitic structure. The total porosity is 14.3 %. A comprehensive assessment of the reservoir of the productive formation of the Kanevskoye field has been carried out. The reservoir is productive. Therefore, it is necessary to make a project for conducting geological exploration.

Author(s):  
V. T. Kryvosheyev ◽  
V. V. Makogon ◽  
Ye. Z. Ivanova

Economic hardship in Ukraine during the years of independence led to a sharp reduction of exploration work on oil and gas, a drop in hydrocarbon production, a decrease in inventories and a sharp collapse of research work to ensure the growth of hydrocarbon reserves.The hydrocarbon potential of various sources of Ukrainian subsoil is quite powerful and can provide future energy independence of the country. Potential hydrocarbon resources in traditional traps of various types are exhausted by only 25 %. Ukraine has recently experienced so-called “shale gas boom”. The experience of extraction of shale gas in desert areas of the United States can not be repeated in densely populated Ukraine in the absence of such powerful shale strata, resource base, necessary infrastructure, own technologies and techniques and economic, environmental and social risks.Taking into account the fuel and energy problems of the state, we constantly throughout the years of independence oriented the oil and gas industry and the authorities on the active use of our own reserves and opportunities for accelerated opening of new oil and gas fields.The results of geological exploration work in the old oil and gas basins at the high level of their study indicate that deposits in non-structural traps dominate among open deposits.A complex of sequence-stratigraphical, lithology-facies and lithology-paleogeographical studies is being successfully used to forecast undeformational traps in well-studied oil and gas bearing basin of the Ukraine – the Dniprovsko-Donetsky basin. The authors predict wide development of stratigraphic, lithologic, tectonic and combined traps in terrigenous sediments of Tournaisian and Visean age, reef-carbonate massifs of the lower Tournaisian, lower and middle Visean age and others. They should become the basis for exploration of oil and gas fields for the near and medium term and open the second breath of the basin.


2021 ◽  
pp. 1-13
Author(s):  
Shantanu Chakraborty ◽  
Samit Mondal ◽  
Rima Chatterjee

Summary Fluid-replacement modeling (FRM) is a fundamental step in rock physics scenario modeling. The results help to conduct forward modeling for prediction of seismic signatures. Further, the analysis of the results improves the accuracy of quantitative interpretation and leads to an updated reservoir characterization. While modeling for different possible reservoir pore fluid scenarios, the quality of the results largely depends on the accuracy of the FRM. Gassmann (1951)fluid-replacement modeling (GFRM) is one of the widely adopted methods across the oil and gas industry. However, the Gassmann method assumes the reservoir as clean sandstone with connected pores. This causes Gassmann fluid-replacement results to overestimate the fluid effect in shaly sandstones. This study uses neutron and density logs to correct the overestimated results in shaly sandstone reservoirs. Due to the nature of these recordings, both of these log readings have close dependencies on the presence of shale. When the logs are plotted in a justified scale, the differences between the logs provide an accurate measurement of shaliness within the reservoir. The study has formulated a weight factor using the logs, which has further been used to scale the overestimated Gassmann-modeled fluid effect. The results of the revised method are independent of type of clay presence and associated effective porosity. Moreover, the corrected FRM results from the revised Gassmann method shows good agreement with rock physical interpretation of shaly sandstone reservoirs.


2021 ◽  
Vol 7 (2) ◽  
pp. 422-427
Author(s):  
Danil Petrovitch Egorov

The article is devoted to the qualitative assessment of the state of the oil and gas industry in the Russian Federation based on the context of administrative-territorial units. It was realized that the data provided by different sources differs due to the variation in the calculation methods used, and the lack of detailed regional reports from foreign agencies shows the novelty of the research. In the current research the projection of administrative borders on the territory of oil and gas-geological zoning is used. To determine the degree of the dependence of regional economies from the oil and gas industry, current data about the state of the mineral resource base in the subjects of the Russian Federation were compared with the geography of the location of processing enterprises. On the basis of the obtained materials, the classification of oil and gas-bearing territories is carried out.


Geosciences ◽  
2019 ◽  
Vol 10 (1) ◽  
pp. 7 ◽  
Author(s):  
Jörg Smodej ◽  
Laurent Lemmens ◽  
Lars Reuning ◽  
Thomas Hiller ◽  
Norbert Klitzsch ◽  
...  

Carbonate reservoirs form important exploration targets for the oil and gas industry in many parts of the world. This study aims to differentiate and quantify pore types and their relation to petrophysical properties in the Permo-Triassic Khuff Formation, a major carbonate reservoir in Oman. For that purpose, we have employed a number of laboratory techniques to test their applicability for the characterization of respective rock types. Consequently, a workflow has been established utilizing a combined analysis of petrographic and petrophysical methods which provide the best results for pore-system characterization. Micro-computed tomography (µCT) analysis allows a representative 3D assessment of total porosity, pore connectivity, and effective porosity of the ooid-shoal facies but it cannot resolve the full pore-size spectrum of the highly microporous mud-/wackestone facies. In order to resolve the smallest pores, combined mercury injection capillary pressure (MICP), nuclear magnetic resonance (NMR), and BIB (broad ion beam)-SEM analyses allow covering a large pore size range from millimeter to nanometer scale. Combining these techniques, three different rock types with clearly discernible pore networks can be defined. Moldic porosity in combination with intercrystalline porosity results in the highest effective porosities and permeabilities in shoal facies. In back-shoal facies, dolomitization leads to low total porosity but well-connected and heterogeneously distributed vuggy and intercrystalline pores which improves permeability. Micro- and nanopores are present in all analyzed samples but their contribution to effective porosity depends on the textural context. Our results confirm that each individual rock type requires the application of appropriate laboratory techniques. Additionally, we observe a strong correlation between the inverse formation resistivity factor and permeability suggesting that pore connectivity is the dominating factor for permeability but not pore size. In the future, this relationship should be further investigated as it could potentially be used to predict permeability from wireline resistivity measured in the flushed zone close to the borehole wall.


2020 ◽  
Vol 5 (2) ◽  
pp. 69-75
Author(s):  
Raja Asim Zeb ◽  
Muhammad Haziq Khan ◽  
Intikhab Alam ◽  
Ahtisham Khalid ◽  
Muhammad Faisal Younas

The lower Indus basin is leading hydrocarbon carriage sedimentary basin in Pakistan. Evaluation of two sorts out wells namely Sawan-2 and Sawan-3 has been assumed in this work for estimation and dispensation of petro physical framework using well log data. The systematic formation assessment by using petro physical studies and neutron density cross plots reveal that lithofacies mainly composed of sandstone. The hydrocarbon capability of the formation zone have been mark through several isometric maps such as water saturation, picket plots, cross plots, log analysis Phie vs depth and composite log analysis. The estimated petro physical properties shows that reservoir have volume of shale 6.1% and 14.0%, total porosity is observed between 14.6% and 18.2%, effective porosity ranges 12.5-16.5%, water saturation exhibits between 14.05% and 31.58%, hydrocarbon saturation ranges 68.42% -86.9%, The lithology of lower goru formation is dominated by very fine to fine and silty sandstone. The study method can be use within the vicinity of central Indus basin and similar basin elsewhere in the globe to quantify petro physical properties of oil and gas wells and comprehend the reservoir potential.


2021 ◽  
Vol 251 ◽  
pp. 648-657
Author(s):  
Igor Bosikov ◽  
Andrey Мaier

At the present stage, the development of the oil and gas industry in the Russian Federation is impossible without replenishing the raw material base, so the urgent task is to conduct investigations, prospecting and evaluation of oil and gas bearing capacity prospects in undiscovered areas. The purpose of the investigations is to analyze facies and thicknesses, choose the methodology of prospecting and exploration in reservoirs, make a comprehensive assessment of oil and gas bearing capacity prospects based on experimental investigations and construct a map of oil and gas bearing capacity prospects of the studied sediment structure. The methodology of the conducted investigations was to identify and trace zones of increased fracturing by qualitative interpretation of time seismic sections. Methods for qualitative interpretation of time seismic sections, the model of physical, chemical and geochemical criteria developed by I.A.Burlakov, gas and geochemical surveying and correlation analysis were used in the investigations. A number of prospecting criteria, established based on the analysis of reference seismic materials on well-studied areas in comparison with the results of well tests, were also used. Structural plan for forecast prospects of oil and gas bearing capacity in the studied area was made; zonal and local objects with prospects for oil and gas were identified. Graphical plotting of Eh and pH concentrations distribution and various gas and geochemical indicators allowed identifying zones of possible oil and gas accumulations and starting their detailed survey. Processing of gas and geochemical materials by means of software allowed efficient assessment of prospects for oil and gas bearing capacity of the investigated objects.


2019 ◽  
Vol 89 (11) ◽  
pp. 1095-1104 ◽  
Author(s):  
Alexey E. Kontorovich ◽  
Lev M. Burshtein ◽  
Valery R. Livshitc ◽  
Svetlana V. Ryzhkova

This paper discusses the most important aspects of the development of the oil and gas industry in Russia. To replace declining oil production in Russia, we need to change the obsolete paradigm of the development of the domestic resource base. In the twenty-first century, the priority tasks in the search for oil deposits should be the Russian Arctic shelves and immature onshore provinces as well as unique unconventional oil accumulations (Bazhenov, Domanik, Khadum, Kuonamka Formations, etc.). In addition, special focus should be placed on the exploration of small and smallest oil and gas fields, which will be developed with the collaboration of small- and medium-sized oil businesses to ensure up to 20% of domestic oil production. The shift from extensive to intensive development of Russias oil and gas sector will require the prioritizing of technological tasks.


2017 ◽  
Vol 57 (2) ◽  
pp. 426
Author(s):  
Bernadette Cullinane ◽  
Paul Harrison

While emerging as a world leader in liquefied natural gas production, overall, Australia’s oil and gas industry is disadvantaged by the remoteness and geographical breadth of our operations, our limited infrastructure and insufficient economies of scale. These factors drive up the cost of production and make it difficult for both operators and service companies to balance the trade-offs between building scale and capability. Despite our rich resource base, these structural factors make it challenging for the Australian oil and gas industry to compete globally. Additionally, traditional project development and contracting practices rely on bespoke, bi-lateral agreements between operators and service companies, resulting in inconsistencies and inefficiencies that limit the reuse of solutions and technology, driving costs even higher. This has created an imperative for new collaborative industry platforms in areas of workforce competency management and integrated activity planning, which leverage standardised processes and common infrastructure. This paper will explain how to overcome collaboration obstacles by cultivating a culture of transparency and will discuss the steps undertaken to develop trust within a diverse stakeholder group, enabling the creation of shared solutions. This paper gives concrete recommendations on how to create a new mindset around the appropriate company structure for the development of collaborative and innovative platforms that deliver more competitive outcomes to the Australian oil and gas industry.


2021 ◽  
pp. 188-194
Author(s):  
I. S. Fomenko ◽  
T. I. Sadykov ◽  
O. A. Yadryshnikova ◽  
I. V. Gulevich ◽  
M. V. Krivolapova ◽  
...  

One of the key strategic directions of the long-term program for the development of the oil and gas industry is the development of the resource base, including through the acquisition of new licenses at auctions and tenders held by Russian government agencies. To make a prompt decision to purchase a license area, it is necessary to carry out an objective technical and economic assessment. Official resources contain a minimum of initial data for making a decision, which led to the need to create a unified information system for assessing subsoil plots, accumulating information on new unallocated plots. The article gives valuable information about the main capabilities of the unique information resource, which was developed by specialists of Tyumen Petroleum Scientific Center LLC. This information resource is intended to provide the Company's specialists with a tool for rapid assessment of subsurface areas based on complex parameters of geology, development, infrastructure and economics in order to make a decision on the feasibility of acquiring an asset.


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