Geology, Geophysics and Development of Oil and Gas Fields

PALEOGEOGRAPHIC RECONSTRUCTIONS OF THE LATE DEVONIAN SEDIMENTS DEPOSITION
IN THE SOUTH OF THE VOLGO-URAL PROVINCE CAUSED BY PROSPECTING
FOR REEF OIL DEPOSITS (p. 4)

Yuri Ivanovich Nikitin, Cand. of geol.-mineral. sci.

LLC "Tyumen Petroleum Research Center"

42, Maxim Gorky str., Tyumen, 625048, Russian Federation,

e-mail: YINikitin@tnnc.rosneft.ru

The paper considers the problem of prospecting for oil accumulation zones in the south of the Volga-Ural oil and gas province, controlled by the Upper Devonian single basin and barrier reefs, based on the construction of paleo-geographic maps. The maps are the result of building a conceptual model of the Late Devonian sedimentation based on a comprehensive analysis of geological and geophysical data: the results of bio-stratigraphic, lithological-facies, sedimentological studies of wells core and logging, seismo-stratigraphic interpretation of 2D/3D seismic data, study of the tectonic (geodynamic) mode of the region development, changes of the sea relative level due to their influence on the conditions of sedimentation. The relationship between the Early Hercynian tectogenesis and the features of the Late Devonian sedimentation in the south of the Volga-Ural province is analyzed. For the Late Devonian, for the first time, a comparatively fractional series of paleo-geographic maps was built, on the basis of which zones of development of various types reefs were identified and characterized, and the prospects for their oil and gas potential were assessed.

Keywords: reef oil accumulation zones; geological and geophysical data; fluctuations of the sea relative level (SRL); early Hercynian tectogenesis; paleo-geographic maps.

Order this article in the electronic library

UDC 551.24.01 DOI: 10.30713/2413-5011-2020-8(344)-19-29

CHARACTERISTICS OF THE GEOLOGICAL STRUCTURE, ASSESSMENT OF THE PERSPECTIVES OF OIL AND GAS POTENTIAL AVAILABILITY IN THE PALEOZOIC AND TRIAS COMPLEXES
OF THE JOINTED ZONE OF JAMAL, GYDAN AND NADYM-PURSK OIL-
AND GAS-BEARING AREAS OF THE WESTERN SIBERIA
ACCORDING TO 2D, 3D SEISMIC SURVEY DATA (p. 19)

Oleg Arkadievich Smirnov¹, Cand. of geol.-mineral. sci.,

Vladimir Nikolaevich Borodkin^2,3, Dr. of geol.-mineral. sci.,

Arkady Romanovich Kurchikov^2,3, Dr. of geol.-mineral. sci.,

Andrey Viktorovich Lukashov¹,

A.D. Pletneva¹,

Alexander Vladimirovich Pogretsky⁴

¹LLC "INGEOSERVICE"

211, Respublika str., Tyumen, 625019, Russian Federation,

e-mail: info@ingeos.info

²A. Trofimuk Institute of Petroleum Geology and Geophysics, the West-Siberian branch of the Russian Academy of Sciences

56, Volodarsky str., Tyumen, 625000, Russian Federation,

e-mail: niigig@tmnsc.ru

³Tyumen Industrial University (TIU)

38, Volodarsky str., Tyumen, 625000, Russian Federation

⁴LLC "Gazprom geologorazvedka"

70, Hertsen str., Tyumen, 625000, Russian Federation,

e-mail: a.smirnov@ggr.gazprom.ru

On the basis of reference productive objects in the Paleozoic formations at the Novoportovskoye and the Blishne-Portovskoye fields, the paper presents seismic images of productive deposits, prospective hydrocarbon traps are mapped.

In the cross-section of the Triassic formations, the rift stage of the formation of the West Siberian Mesozoic basin is considered. On the basis of 3D seismic exploration, two promising objects are identified for hydrocarbon deposits prospecting.

Keywords: Western Siberia; oil and gas potential region; complex; seismic exploration; reflecting horizon; promising object; riftogenesis.

Order this article in the electronic library

UDC 553.98(470.43) DOI: 10.30713/2413-5011-2020-8(344)-30-33

GEOLOGICAL CONDITIONS OF HEAVY OIL OCCURRENCE WITHIN THE LICENSE AREAS
OF PJSC "NK "ROSNEFT" IN THE SAMARA REGION (p. 30)

Alexander Valerievich Nikitin,

Georgy Valerievich Trikhonovich

LLC "SamaraNIPIneft"

18, Vilonovskaya str., Samara, 443010, Russian Federation,

e-mail: NikitinAV@samnipi.rosneft.ru

The paper analyzes the data reflecting the geological conditions of occurrence of the developed and explored oil reserves the viscosity of which is more than 100 mPa∙s.

The statistical data on stratigraphic, tectonic and geographic characteristics are given in the paper. Reservoirs are described on the basis of core material. Oil general characteristic is given.

Keywords: heavy oil; the Visean stage; terrigenous reservoir; carbonate reservoir; tectonic structure.

Order this article in the electronic library

УДК 553.98(470.53) DOI: 10.30713/2413-5011-2020-8(344)-34-43

REGIONAL ASSESSMENT OF OIL AND GAS POTENTIAL OF THE DEVONIAN TERRIGENOUS DEPOSITS IN THE SOUTH OF PERM TERRITORY (p. 34)

Ivan Sergeyevich Putilov, Dr. of tech. sci.,

Ekaterina Evgenievna Vinokurova,

Anastasia Sergeevna Pulina,

Semen Yurievich Koryakin,

Yana Leonidovna Lvovskaya,

Marina Vasilyevna Nikitina,

Alexey Leonidovich Yuzhakov,

Alexey Vasilyevich Gabnasirov, Cand. of geol.-mineral. sci.,

Timur Tarielovich Makiev

Perm National Research Polytechnic University

29, Komsomolsky prosp., Perm, 614066, Russian Federation,

e-mail: Ivan.Putilov@pnn.lukoil.com, Aleksej.Gabnasyrov@pnn.lukoil.com

The Devonian terrigenous oil and gas complex is one of the most unexplored exploration areas for oil and gas in the Perm Territory. Using modern software for sedimentation and basin modeling, the authors comprehensively assessed the oil and gas prospects of the Devonian terrigenous oil and gas complex, which allows restoring the entire cycle of formation and filling of traps in the complex. As a result of the work, the initial total resources were estimated, and a program was developed for the additional study of the Devonian terrigenous oil and gas complex in the central and southern parts of the Perm Territory.

Keywords: terrigenous deposits; Devonian terrigenous oil and gas complex; continental facies; hydrocarbon resources; hydrocarbon reserves; seismic exploration; assessment of oil and gas potential; PetroMod; Dionisos Flow.

Order this article in the electronic library

UDC 550.8.072 DOI: 10.30713/2413-5011-2020-8(344)-44-50

ALGORITHM FOR MONITORING THE GEOLOGICAL MODEL TAKING INTO ACCOUNT SEDIMENTOLOGICAL STUDIES OF THE CORE IN THE CONDITIONS
OF PRODUCTION DRILLING (p. 44)

E.Yu. Klyusova,

V.A. Pukharev

LLC "Tyumen Petroleum Research Center"

42, Maxim Gorky str., Tyumen, 625048, Russian Federation,

e-mail: vapukharev@tnnc.rosneft.ru

The importance of the timely use of the results of lithofacial analysis and paleostructural constructions to clarify the geological model of the field using the example of production drilling in one of the fields in the south of the Western Siberia is shown in the paper. After completion of geological exploration and field’s preparation for production drilling and development, significant geological uncertainties remain. It is important at the first stages to assess geological risks, to analyze in detail the data of wells and seismic surveys in the drilled area based on the results of lithological-facial analysis as well as to carry out additional exploration of the marginal parts of the reservoir by pilot wellbores, thus allowing to quickly adjust the geological model and position of the project fund and the grid of production drilling.

Keywords: facies analysis; seismic attributes; geological model.

Order this article in the electronic library

UDC 553.982.2 DOI: 10.30713/2413-5011-2020-8(344)-51-56

PLANNING OF DRILLING OPERATIONS BASED ON NEW APPROACHES TO IDENTIFICATION
AND MAPPING OF HYDROCARBON RESERVOIRS ELEMENTS BASED ON COMPLEX INTERPRETATION OF GIS AND SEISMIC SURVEY DATA (p. 51)

Irina Vladimirovna Kolokolova,

Elena Mikhailovna Danilova,

Marina Nikolaevna Popova,

Alexey Mikhailovich Khitrov

Oil and Gas Research Institute Russian Academy of Sciences (OGRI RAS)

3, Gubkin str., Moscow, 119333, Russian Federation,

e-mail: ipngkolokolova@yandex.ru

The paper considers an example of planning of wells drilling operations based on new approaches to identifying and mapping of the reliable fluid seals, "best" reservoirs and maximally effective reservoir thickness using geophysical and seismic survey data obtained from one of the fields in the Timan-Pechora province.

The presented methods of interpretation of wells logging and seismic survey data are a serious practical bonus that allows getting detailed geological models of productive/perspective objects for determination of the point of a high production “waterless” well location in high capacity reservoirs with maximally effective thickness.

Keywords: seismic survey; geophysical well logging; the Upper Devonian age; effective thickness; deposit; hydrocarbon reservoir; reservoir; seal; improved reservoir zone; anomaly.

Order this article in the electronic library

UDC 622.276.4 DOI: 10.30713/2413-5011-2020-8(344)-57-63

METHODICAL APPROACHES TO THE PHYSICAL PROPERTIES OF INHOMOGENEOUS
MUDDED-OFF ROCK FORMATIONS STUDYING (p. 57)

Alina Mikhaylovna Malyarenko¹,

Vladislav Anatolievich Bogdan²,

Sergey Alekseevich Blinov³, Cand. of tech. sci.,

Yuriy Alekseevich Kotenev^1,4, Dr. of tech. sci., Professor

Vyacheslav Sharifullovich Mukhametshin⁵, Dr. of geol.-mineral. sci., Professor

Maxim Yurievich Kotenev¹, Cand. of tech. sci.

¹Ufa State Petroleum Technological University

1, Kosmonavtov str., Ufa, 450062, Republic of Bashkortostan, Russian Federation,

e-mail: m_alina_m@mail.ru, geokot@inbox.ru, kotenyov@mail.ru

²JSC "Scientific and Production Firm "Geofizika"

2, Komsomolskaya str., Ufa, 450005, Republic of Bashkortostan, Russian Federation,

e-mail: mhen839@yandex.ru

³KREZOL-NefteServis LLC

2/4, Tramvaynaya str., Ufa, 450027, Republic of Bashkortostan, Russian Federation,

e-mail: s.blinov@krezol.ru

⁴Laboratory for Oil and Gas Research of the SASI "Institute of strategic research of the Republic of Bashkortostan",

129/3, October prosp., Ufa, 450075, Republic of Bashkortostan, Russian Federation

⁵Ufa State Petroleum Technological University, Branch of the University in the City of Oktyabrsky

54a, Devonskaya str., Oktyabrsky, 452607, Republic of Bashkortostan, Russian Federation,

e-mail: vsh@of.ugntu.ru

The article states that the analysis of the filtration-capacity properties dependences, namely porosity and permeability, on the clay material content in them, the relative clay content and the wettability parameter conducted on the example of reservoir rocks of two deposits of the Surgut oil and gas region showed contradicting results. To increase the reliability of the results and further correct analysis of them for the considered oil fields we propose to apply the methodology for wettability determining by the capillary imbibition and centrifugal hydrocarbons displacement technique. Based on the specified methodological approach, actual examples were used to evaluate the reliability of the obtained wettability parameter values.

Keywords: heterogeneous mudded-off reservoir; porosity & permeability properties of reservoir rocks; rock wettability; relative clay content.

Order this article in the electronic library

UDC 556.3(540.4) DOI: 10.30713/2413-5011-2020-8(344)-64-73

STUDYING OF THE STATE OF FRESH UNDERGROUND WATERS UNDER CONDITIONS OF OIL DEPOSITS DEVELOPMENT IN THE SOUTH-WESTERN PART OF THE TOMSK REGION (p. 64)

Margarita Vladimirovna Vashurina, Cand. of geol.-mineral. sci.

West Siberian branch of Trofimuk Institute of Petroleum Geology and Geophysics RAS

74, Taimyrskaya str., Tyumen, 625026, Russian Federation,

e-mail: MVashurina@tmnsc.ru

Yulia Olegovna Rusakova,

Anna Leonidovna Khramtsova

West Siberian Institute of Oil and Gas Geology of Tyumen Industrial University

56, Volodarsky str., Tyumen, 625000, Russian Federation,

e-mail: julrusakova@rambler.ru, khramtsova@tmnsc.ru

The paper highlights the results of a four-year (2016–2019) monitoring cycle of fresh groundwater of the Atly-Novomikhaylovsky aquifer by water intakes located within the oil fields of Tomsk Region. The conducted analysis of the hydrodynamic state of the studied waters within the considered territory allowed fixing the constancy of piezometric level both in time and in area. The analysis of the spatial temporal change in the hydrochemical composition of the studied waters revealed a tendency of water in solids content decrease and permanganate oxidation increase for most of the territory in the direction from the north-east to the south-west, which indicates a decrease in the total amount of dissolved substances in groundwater and an increase in their organic matter content. The determining factor in this case was an amount of precipitation, the increase of which in a long-term section characterizes the increase in fraction of groundwater infiltration supply with the involvement of widespread bog waters within the studied area. The revealed changes require further detailed study to determine the role of both natural and technogenic factors affecting the chemical composition of groundwater within the considered area and adjacent territories of the Western Siberia which are characterized by similar natural and geological-hydrogeological conditions.

Keywords: fresh groundwater; precipitation; infiltration recharge; resources; water withdrawal; chemical composition; type of water; dry residue; permanganate oxidation.

Order this article in the electronic library

UDC 622.276.1/.4(479.24) DOI: 10.30713/2413-5011-2020-8(344)-74-78

PERIODIC BAR IMPACT ON BOTTOM HOLE ZONE OF THE WELL
WITH REDUCED PERMEABILITY (p. 74)

Tulparkhan Sharabudinovich Salavatov, Dr. of tech. sci., Professor,

Sh.Z. Ismaylov

Azerbaijan State Oil and Industry University

34, Azadlig prosp., Baku, AZ1010, Azerbaijan,

e-mail: petrotech@asoiu.az

The paper presents the results of experimental studies of the method of regulating the reservoir properties of the well bottom formation zone (WBZ), worsened under the influence of technological processes in the well. The goal of a well bottom treatment is to restore and increase the natural permeability of the reservoir rock as well as to reduce the viscosity of the formation fluid to facilitate fluid flow. The method of periodic bar impact provides a "discharge" effect on the well bottom zone of the wells, penetrating to the given WBZ depth, ensuring the removal of muds and the restoration of initial permeability.

Keywords: well bottom zone (WBZ); bar effect; reservoir properties; formation fluids.

Order this article in the electronic library

JSC "ALL-RUSSIAN SCIENTIFIC-RESEARCH INSTITUTE OF ORGANIZATION, MANAGEMENT AND ECONOMICS OF OIL AND GAS INDUSTRY"

Main page of journal