Integration of Conceptual Considerations in Geological Model of Riphean Carbonate Reservoir in Yurubcheno-Tokhomskoe Field

Kutukova, N. M.; Birun, E. M.; Малахов, Р А; Savichev, K. S.; Yatsenko, V. M.

doi:10.2118/162055-ms

Cited by 2 publications

(3 citation statements)

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“…На основе детальных исследований, включая данные оптической и электронной микроскопии, а также микротомографии, выполненных на керне вертикальных поисково-разведочных скважин и наклонных пилотных стволов кустового эксплуа-тационного бурения, в породах рифея выделены [Bayuk et al, 2012;Kutukova et al, 2012] следующие элементы (основные типы) пустотного простран-ства (рис. 4): 1) минеральная матрица, представленная доло-митом и содержащая 1-2 % квазиизометрических пор (замкнутые пустоты);…”

Section: геодинамический тектонофизический и гидродинамический аспектыunclassified

“…Таким образом, фильтрационно-емкостная си-стема рифейского природного резервуара образо-вана субгоризонтальными окремнелыми щелевид-ными пустотами [Kutukova, 2009;Kutukova et al, 2012], уровни которых циклично повторяются в разрезе, соединяясь между собой субвертикальны-ми тектоническими трещинами.…”

Section: геодинамический тектонофизический и гидродинамический аспектыunclassified

“…Концептуальная модель строения пустотного пространства сложных карбонатных коллекторов природного резервуара рифея, Юрубченская залежь [Kutukova et al, 2012]. [Kutukova et al, 2012]. 2015].…”

Section: геодинамический тектонофизический и гидродинамический аспектыunclassified

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Geodynamic aspects in the study of complex mining and geological conditions for drilling into oil-and-gas reservoirs in the Riphean carbonate rocks: an overview of the problem as exemplified by the deposits in the Baikit petroliferous district

Вахромеев¹,

Sverkunov²,

Ivanishin³

et al. 2017

Geodyn. Tectonophys.

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Abstract:The practical aspects are discussed in the geodynamic studies of the massive vugular-fractured oil-and-gas reservoir in the Riphean carbonate rocks of the Yurubcheno-Tokhoma oil-gas-condensate field in the Baikit petroliferous district. This field is a part of the Yurubcheno-Tokhoma zone that includes the Kuyumba oil-and-gas field, Omorinsk gas-condensate field (a satellite field) and the promising Kamovsky, Vaividinsky, Shushuksky, Seismorazvedochny and Kordinsky areas [Kontorovich et al., 1988]. Potential recoverable resources are predicted to amount to two billion tonnes of fuel equivalent in this zone, which area exceeds 60000 km 2 , also known as the Kuyumba-Yurubcheno-Tokhoma oil-and-gas accumulation zone [Trofimuk, 1992;Trofimuk et al., 1989;Kharakhinov, Shlenkin, 2011]. A key factor for the economically effective development of the deposits in the Baikit petroliferous district is the feasibility of efficient primary recovery of oil and gas by horizontal wells to be drilled to large depths to reach the complex fractured natural reservoirs in the Riphean carbonate rocks. This paper discusses one field as an example from the Baikit petroliferous district and summarizes the results of the detailed studies of the geodynamic and hydrodynamic conditions of the oil-gas-condensate reservoir in the Riphean rocks. The reported results are compared with the actual field data, including the annulus pressure sensor measurements [Vakhromeev et al., , 2015. The previous findings are confirmed and extended: when vertical fractures are penetrated by drilling, and the hydraulic pressure variations amount to 0.5-1.5 % of the formation pressure, the effect of alternating mud-loss / kicks occurs in the nearwellbore zone due to the high permeability of the reservoir and the lack of the skin-effect in the bottomhole zone . The allowable ranges of the variations in the dynamic bottomhole pressure are estimated and justified for primary penetration into the oil-saturated vugular-fractured strata. Within an allowable range of pressure rates, a horizontal well can be drilled with minimal complications caused by alternating adjustable mud-loss and kick effects. Based on our study results, prerequisites are determined for developing the new technology of penetrating into pay zones in carbonate vugular-fractured reservoirs with anomalously low formation pressure rates.Key words: geodynamics; production drilling; horizontal well; mud-loss; drilling technology; Riphean carbonate reservoir For citation : Vakhromeev A.G., Sverkunov S.A., Ivanishin V.M., Razyapov R.K., Danilova E.M., 2017. Geodynamic aspects in the study of complex mining and geological conditions for drilling into oil-and-gas reservoirs in the Riphean carbonate rocks: an overview of the problem as exemplified by the deposits in the Baikit petroliferous district. Geodynamics & Tectonophysics 8 (4), 903-921. GEODYNAMICS & TECTONOPHYSICS P U B L I S H E D B Y T H E I N S T I T U T E O F T H E E A R T H ' S C R U S T S I B E R I A N B R A N C H O F R U S S I A N A C ...

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Section: геодинамический тектонофизический и гидродинамический аспектыunclassified

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Geodynamic aspects in the study of complex mining and geological conditions for drilling into oil-and-gas reservoirs in the Riphean carbonate rocks: an overview of the problem as exemplified by the deposits in the Baikit petroliferous district

Вахромеев¹,

Sverkunov²,

Ivanishin³

et al. 2017

Geodyn. Tectonophys.

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Features of Geological Structure and Prospects of Oil-and-Gas Bearing Capacity of the Riphean and Vendian Deposits in the Southeastern Part of the Kamo Arch of the Baykit Anticlise

Fomin,

Vakhromeev,

Motova

et al. 2024

Geodin. tektonofiz.

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The paper presents the results of the integrated study of the features of geological structure of the southeastern Kamo arch of the Baikit anticlise. Use has been made of both already published and unpublished geological-geophysical data obtained through seismic survey using the common depth point (CDP 2D) and the side view seismic location (SVSL) methods. The conducted research made it possible to improve understanding of the geological structure and formation conditions of the terrigenous-carbonate rocks of the Lower Riphean (Madrа, Yurubchen and Dolgokit formations) and Vendian (Vanavara and Oskoba formations) Kamo Group in the southern Kamo arch of the Baykit anticlese in terms of the prospects for the discovery of hydrocarbon (HC) deposits therein. The interpretation of seismic data (CDP and SVSL) provided the possibility to specify the thickness of the Lower Riphean terrigenous-carbonate rocks, most promising for hydrocarbons, to generate the predictive geology map of the pre-Vendian erosion surface, and to map the HC-promising Early Riphean and Vendian deposit thickness. Along with the previously explored large HC deposits in the central Kamo arch of the Baykit anticlise, the new data presented here testify in favor of the structural-and tectonic conditions for the development of the Lower Riphean and Vendian rocks on the southeastern slope of the Kamo arch of the Baykit anticlise and imply their high potential.

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Integration of Conceptual Considerations in Geological Model of Riphean Carbonate Reservoir in Yurubcheno-Tokhomskoe Field

Cited by 2 publications

References 1 publication

Geodynamic aspects in the study of complex mining and geological conditions for drilling into oil-and-gas reservoirs in the Riphean carbonate rocks: an overview of the problem as exemplified by the deposits in the Baikit petroliferous district

Geodynamic aspects in the study of complex mining and geological conditions for drilling into oil-and-gas reservoirs in the Riphean carbonate rocks: an overview of the problem as exemplified by the deposits in the Baikit petroliferous district

Features of Geological Structure and Prospects of Oil-and-Gas Bearing Capacity of the Riphean and Vendian Deposits in the Southeastern Part of the Kamo Arch of the Baykit Anticlise

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