An Example of Building a Petrophysical Model of Unconsolidated Gas-Saturated Laminated Sediments Using Advanced Wireline and Logging While Drilling Services

2021 ◽  
Author(s):  
Anton Yurievich Bokarev ◽  
Dmitriy Mikhailovich Yezersky ◽  
Anton Yurievich Filimonov ◽  
Ivan Romanovich Dubnitsky ◽  
Vladislav Viktorovich Vorobiev
Keyword(s):  
Industrial Development ◽  
Western Siberia ◽  
Clay Fraction ◽  
Laminated Sediments ◽  
Core Material ◽  
The North ◽  
Development Scenarios ◽  
Petrophysical Model ◽  
Well Trajectory ◽  
Saturated Formations

Abstract Productive deposits of the Turonian age as part of the Kuznetsovskaya Formation are cover the eastern part of Western Siberia (Figure 1), but until recently they were not of wide industrial interest. Today, most of the gas reserves in Western Siberia are produced in the Cenomanian deposits, which are in the stage of declining production. The productivity of the deposits above Cenomanian layer has been established in many fields where the Cenomanian formations are productive. In general, in Western Siberia in the Turonian deposits, there are more than 3 trillion cubic meters of gas, which allows us to consider them as high-potential sources of gas reserves. The main difficulties in the industrial development of Turonian deposits are reduced permeability, high dissection, high content of clay fraction, high macro- and microheterogeneity of the reservoir, inconsistency of effective thicknesses in plan and section. In turn, the relatively low temperature of the reservoir predetermines the operation of the field in a mode close to hydration (Avramenko et all., 2019). Under these conditions, a good petrophysical baseline is essential to assess the exploration potential of the assets and design the development of the reservoir. Shaly gas-saturated formations are not a simple object for petrophysical modeling. Adding to this the low quality of the core material caused by the weak cementation of shallow deposits, we get a very nontrivial problem. On the other hand, modern horizontal well development scenarios dictate their requirements for petrophysical models. In other words, the petrophysical model must maintain its stability for any well logging regardless of the well trajectory (vertical or horizontal) and the logging method conveyance (wireline or while drilling). The authors of the paper carried out work on the development of a universal petrophysical model of the Turonian reservoir, for one of the fields in the region of the north of Western Siberia, based on a modern extended GIS complex.

scholarly journals Parageneses of cryogenic formations of gas emission funnels (Part 2). Cryogenic factor in formation of gas funnels

2021 ◽  
pp. 57-79
Author(s):  
Aleksandr Nikolaevich Khimenkov ◽  
Andrei Viktorovich Koshurnikov ◽  
Julia Viktorovna Stanilovskaya
Keyword(s):  
Western Siberia ◽  
Fluid Dynamic ◽  
Geophysical Methods ◽  
Local Heat ◽  
Gas Emission ◽  
The North ◽  
Self Development ◽  
Heat Penetration ◽  
Saturated Formations ◽  
Gas Supply

The subject of this research is frozen rocks that compose gas emission funnels in the north of Western Siberia. The object of this research is the cryogenic factor that causes the formation of gas emission funnels. The authors substantiate the thesis that gas emission funnels are cryogenic phenomenon, and the processes preparing the explosion cannot be accurately interpreted without taking these features into account. The analysis of research materials on gas emission funnels, discovered in the north of Western Siberia, allows concluding that surface conditions may have a significant impact upon the formation of gas emission funnels. Special attention is given to consideration of the hypothesis of formation of gas emission funnels due to local heat penetration and gas supply from the depth. The necessary conditions are described. The article provides the examples of using geophysical methods for detecting of gas supply channels. It is concluded that gas emission funnels are the result of self-development of fluid-dynamic geosystems, which represent local, ice subsurface gas-saturated formations that are in a inequilibrium thermodynamic state with respect to the enclosing permafrost formations. The authors' special contribution consists in examination of the external and hidden mechanisms of the emergence of inequilibrium conditions od the mechanism that launches an explosion. The novelty of this research lies in the development of technique for determining the processes that cause the emission of underground gas, based on the analysis of cryogenic formations, which compose the walls of gas emission funnels.

Special opinion of the head of the Central board

2021 ◽  
Vol 2021 (03) ◽  
pp. 178-182
Author(s):  
Alexander Prishchepa
Keyword(s):  
Industrial Development ◽  
Western Siberia ◽  
Oil And Gas ◽  
Negative Consequences ◽  
The West ◽  
Hydrocarbon Production ◽  
The North ◽  
Oil And Gas Fields ◽  
Gas Fields ◽  
Central Board

The article analyzes the activities of the head of the Glavtyumenneftegazstroy department Alexey Barsukov during the industrial development of the West Siberian oil and gas province. The article analyzes the economic policy of accelerated hydrocarbon production in the north of the Tyumen region, draws attention to its negative consequences for the economy of the USSR, and focuses on the alternative strategy proposed by A. Barsukov for the development of oil and gas fields in Western Siberia.

The North of Western Siberia in the Socioeconomic Space of the USSR: Shifting Models of Nature Use

2021 ◽  
Vol 48 (3) ◽  
pp. 262-288
Author(s):  
Evgenii I. Gololobov
Keyword(s):  
Industrial Development ◽  
Socioeconomic Development ◽  
Western Siberia ◽  
Oil And Gas ◽  
Soviet Society ◽  
Territorial Development ◽  
Material Wealth ◽  
The North ◽  
Material Goods ◽  
Main Producer

Abstract The north of Western Siberia is a region that in a historically short time went from a hub of territorial development, where it was only necessary to control the volume of extraction of certain resources, to a zone of extensive industrial development of vast territories with the need for comprehensive environmental protection. The models of embedding the north of Western Siberia into the socioeconomic space of the USSR were simultaneously based on the need to develop the region’s rich natural resources and to rationally use them. At their core was an industrial standard. In the 1930s–1950s, this industrial standard depended on the use of biological resources, where the main producer of material wealth was the Indigenous inhabitants of the north. Yet it failed. A need arose to rely on resources with a more powerfully transformative and modernizing potential. These resources became hydrocarbons. Beginning in the 1960s, the model of natural resource use in the north was reoriented towards the extraction of oil and gas. The favorable market conditions and large export potential of these resources made it possible to solve not only economic but also ideological tasks. The main producer of material goods became the migrant population, which had the necessary professional and social skills to translate the industrial standard into practice. The Indigenous peoples of the north found themselves on the sidelines of socioeconomic development. A stereotype took root in Soviet society and science that the main object of management and transformation should be nature, which can be modified unlimitedly and at any speed. At the same time, it is obvious that technological and socioeconomic mechanisms are more, not less, malleable than natural ones. A person in the “human-nature” system was considered utilitarianly, exclusively from an economic standpoint. All of this speaks to the need to better understand the historical experience of state environmental management in northern Siberia and the role of people in this process.

РАДИОУГЛЕРОДНЫЕ ДАТИРОВКИ ПАЛЕОНТОЛОГИЧЕСКИХ ОБРАЗЦОВ ВЕРХНЕГО ПЛЕЙСТОЦЕНА НИЖНЕЙ ОБИ

2020 ◽  
Author(s):  
I. Zolnikov ◽  
◽  
A. Vybornov ◽  
A. Anoikin ◽  
A. Postnov ◽  
...  
Keyword(s):  
Mass Spectrometer ◽  
Rangifer Tarandus ◽  
Western Siberia ◽  
Budker Institute ◽  
Mammuthus Primigenius ◽  
Upper Pleistocene ◽  
Ovibos Moschatus ◽  
The North

In the course of studies conducted by IAET SB RAS in the Lower Ob in 2016–2019, the understanding of the conditions for settlement of the Paleolithic population in the north of Western Siberia was significantly supplemented. Dating of a series of paleontological finds was carried out at the "Accelerated mass spectrometer of the Budker Institute of Nucle- ar Physics of SB RAS". The dates obtained show the distribution of the main representatives of the Upper Pleistocene fauna of Subarctica: Mammuthus primigenius – 50,000–15,000 BP, Coelodonta antiquitatis – 43,000–38,000 BP and 27,000–25,000 BP, Rangifer tarandus, Equus ferus – 40,000–10,000 BP, Bison sp. – 50,000–40,000 BP, Ovibos moschatus – 41,000–32,000 BP.

Scientific and technological aspects and prospects for application of cryogenic drilling technology

2020 ◽  
pp. 54-62
Author(s):  
A. B. Tulubaev ◽  
E. V. Panikarovskii
Keyword(s):  
Low Temperatures ◽  
Western Siberia ◽  
Wellbore Stability ◽  
Drilling Mud ◽  
Chemical Reagent ◽  
Production Chain ◽  
Foreign Experience ◽  
Permafrost Rocks ◽  
The North ◽  
Drilling Technology

In the article, we analyze types of drilling mud, which are used to drilling intervals of permafrost rocks; the importance of wellbore stability is noted. Wedescribethemain technologies, which have been being applied in the north of Western Siberia; these technologies are aimed at minimizing the loss wellbore stability due to violation of the temperature conditions in the well. We also analyze hydrocarbon systems, taking into account foreign experience, which is based on prospecting and exploratory drilling of ice deposits in Greenland and Antarctica. The article draws your attention to using synthetic fluids, monoesters and chladones. The difficulties of the existing technology and the disadvantages of the hydrocarbon systems are highlighted. We propose to apply a new cryogenic drilling technology, which consists in the use of synthetic fluorine-containing agents as flushing fluid at low temperatures. The text gives valuable information on composition of the proposed flushing fluid and the prospects of using the technology to prevent complications. Much attention is given to issue of manufacturing the main chemical reagent with the reduction of the generalized production chain of its production from the starting material, it is fluorspar.

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