Expanding the amount of preferential royalty facilities with hard-to-recover oil reserves

Grishchenko, V. A.; Gareev, R.R.; Tsiklis, I. M.; Mukhametshin, V.V.; Yakupov, R. F.

doi:10.5510/ogp2021si200575

Cited by 3 publications

(2 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Для многих месторождений Бирской седловины, вступивших в позднюю стадию разработки, характерна тенденция увеличения доли остаточных извлекаемых запасов в карбонатах и снижения доли ОИЗ в терригенных коллекторах. Существенную роль в этом играют новые технологии, позволяющие значительно повысить категорию запасов в карбонатных объектах до промышленных и обеспечить возможность добычи нефти в сложных геологических и технических условиях [40][41][42].…”

Section: методы и материалыunclassified

Increasing the efficiency management of carbonate oil deposits development in the Kashiro-Podolsk deposits of the Birsk saddle

Nurov¹,

Yakupov²,

Mukhametshin³

et al. 2022

SOCAR Proceedings

View full text Add to dashboard Cite

The article describes a new integrated approach to the analysis and design of carbonate reservoirs of the Kashira-Podolsk deposits development of an oil field confined to the Birskaya saddle. This approach made it possible to obtain results allowing making sound management decisions, as well as optimizing design decisions in the conditions of active involvement of the facility in the development and increasing the oil recovery factor from 0.247 to 0.288 units reserves by the AB1 category. In the future, it is planned to replicate the successful experiences in other fields with a similar geological structure in the north of Bashkortostan. Keywords: oil fields development; carbonates; Kashir-Podolsk deposits; reserves depletion; acid fracturing; horizontal well.

show abstract

Section: методы и материалыunclassified

Increasing the efficiency management of carbonate oil deposits development in the Kashiro-Podolsk deposits of the Birsk saddle

Nurov¹,

Yakupov²,

Mukhametshin³

et al. 2022

SOCAR Proceedings

View full text Add to dashboard Cite

show abstract

“…В настоящее время значительная выработка высокопродуктивных терригенных отложений [1][2][3][4][5][6][7] ведет к смещению акцентов в сторону повышения эффективности разработки и выработки запасов, сосредоточенных в низкопроницаемых карбонатных отложениях, в т.ч. пластах турнейского яруса [8][9][10][11][12][13].…”

unclassified

Analysis of the implemented development system effectiveness, horizontal wells drilling and well interventions in the conditions of carbonate deposits of the Tournaisian tier of the Znamenskoye oil field

Yakupov¹,

Rabaev²,

Mukhametshin³

et al. 2022

SOCAR Proceedings

View full text Add to dashboard Cite

he paper analyzes the implemented system for the oil deposits of the Tournaisian tier of the Znamenskoye field development, as well as factors reducing its effectiveness, assessment of the features of the geological structure affecting oil production, and the development of proposals to improve the development system efficiency. It is noted that during the development of the field, the geological structure of the Tournaisian tier oil deposits has significantly changed because of the additional study of the development facility, the high efficiency of the use of horizontal wells has been confirmed. It shows an increase in the initial well flow rate and the specific accumulated oil production per meter of oil-saturated reservoir thickness, a decrease in the initial water content of well production, the growth rate of water content, a decrease in the accumulated oil-water factor for the first year of well operation, depending on the increase in the capacity of the bridge between the oil and water-saturated layers. Keywords: oil reserves production; bridge; oil recovery factor; oil-water factor; well.

show abstract

Geological Structure Features of Carbonate Formations and Their Impact on the Efficiency of Developing Hydrocarbon Deposits

2022

View full text Add to dashboard Cite

The development of deposits with a complex geological structures is often accompanied by a set of problems associated with optimal decision making. The efficiency of the entire development system depends on the completeness and the quality of the analysis of reservoir parameters. This paper presents methodological approaches for the study of carbonate deposits, and the development of further steps to increase the efficiency of reserve recovery. The secondary transformation of reservoir rocks, resulting in channels of increased conductivity, cracks, and caverns, plays a special role in the nature of the recovery of hydrocarbon reserves from such deposits. Secondary cavernosity leads to violations of the linear laws of fluid filtration in a porous medium, and complicates the field performance prediction based on geological and hydrodynamic modeling. The studied geological structure was detailed using the example of carbonate deposits composed of oil and water- saturated formations, taking into account the results of core studies and the interpretation of geophysical well studies. Furthermore, the parameters of production wells made it possible to confirm that the oil saturated and underlying water saturated formations have hydrodynamic connectivity due to the presence of vertical micro cracks. At the same time, the thickness of the bridge between the reservoirs directly affects the initial water cutting of well production, and further growth dynamics of the water ratio are associated with the structural factors determining the initial oil content of the reservoir. The combination of the obtained dependencies and the distribution model of the reservoir properties along the area made it possible to build a complex map reflecting the predicted development efficiency in certain areas. The integration of the results of various field studies on the injection well stock established that a significant part of the water flows was injected into the water saturated formation, which reduces the efficiency of formation pressure maintenance in the target formation. As a result, in order to reduce the low efficiency injection volume, switching to a more rigid waterflooding system, in terms of the ratio of production and injection wells, is proposed with a further decrease in the injection pressure inside the wells.

show abstract

Expanding the amount of preferential royalty facilities with hard-to-recover oil reserves

Cited by 3 publications

References 1 publication

Increasing the efficiency management of carbonate oil deposits development in the Kashiro-Podolsk deposits of the Birsk saddle

Increasing the efficiency management of carbonate oil deposits development in the Kashiro-Podolsk deposits of the Birsk saddle

Analysis of the implemented development system effectiveness, horizontal wells drilling and well interventions in the conditions of carbonate deposits of the Tournaisian tier of the Znamenskoye oil field

Geological Structure Features of Carbonate Formations and Their Impact on the Efficiency of Developing Hydrocarbon Deposits

Contact Info

Product

Resources

About