Seismic studies of the unevenness of open fracturing and inhomogeneity of the fluid saturation in the geological environment for optimal development of oil and gas fields

Кузнецов, О. Л.; Chirkin, I.A.; Arutyunov, S.I.; Rizanov, Evgeny; Дыбленко, В П; Dryagin, V.V.

doi:10.18599/grs.2018.3.206-215

Cited by 4 publications

(2 citation statements)

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“…The resulting polymer-free gel system has the ability to gel quickly and has high technological efficiency in a wide range of reservoir temperatures (up to 75 °С) (figure 1). The use of this system makes it possible to solve the problem of selective stimulation of the inflow in the oil-saturated part of the formation near the oil-water contact (OWC), that is, reducing the growth of the fracture in height by reducing the effective fracture pressure [12]. The gel system was prepared on the basis of fresh water with a total mineralization of 2.86 g/L and a pH of 6.4 units.…”

Section: Methodsmentioning

confidence: 99%

The results of the application of the ZetaGel technology at the fields of TPE «Kogalymneftegaz»

Yarkeeva

Imangulov

2022

IOP Conf. Ser.: Earth Environ. Sci.

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At present the hydraulic fracturing of formation is the main type of the geological and technical measures in the oilfields of western Siberia. In 2019-2020 the hydrofracturing of formation’s share was 48.6%. The widespread use of hydrofracturing is due to its main advantage - an instant increase in well production, as a result of increasing the permeability of the bottomhole formation zone by several orders. However, water, as a more mobile agent, is ahead of oil and occupies the most permeable channels first, which, as a result, leads to intensive watering of wells. This fact is the main disadvantage of hydrofracturing. The extensive use of this production stimulation’s method and the number of its negative consequences are the cause of the relevance for the hydrofracturing’s technology improvements. The article describes one of the latest and most promising ways to improve its efficiency - the ZetaGel technology consisting of the surface-active agents’ adding to the breakdown agent for further formation of the polymer-free gel system, explores the process of solution preparation, studies its physicochemical properties, and analyzes the geological and field data on the application of ZetaGel technology at the fields of TPE «Kogalymneftegaz» and the advantages of this technology in comparison with the standard operation of hydraulic fracturing. In addition, the authors of the article proposed recommendations for the further use of this system. The use of cross-linked gel has solved the problems related to the bottom water’s breaches, the pore canals’ bridging by the proppant and the damages of the critical area of formation and the edge. The rheological properties of the liquid in turn allow keeping the proppant in suspension and pushing it deep into the formation, thereby increasing the permeability of the proppant pack.

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Section: Methodsmentioning

confidence: 99%

The results of the application of the ZetaGel technology at the fields of TPE «Kogalymneftegaz»

Yarkeeva

Imangulov

2022

IOP Conf. Ser.: Earth Environ. Sci.

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“…The microseismic monmonitoring of hydrocarbon field development is a modern innovative technology for studying borehole space, migration processes of formation fluids arising from changes in initial formation conditions in a natural reservoir during the production of oil, gas, condensate and water, as well as physical and mechanical properties of rocks in situ, cracking processes during the interventions. The essence of microseismic monitoring is the registration of seismic emission processes accompanying the course of oil and gas production processes [15,19,25,27].…”

Section: Introductionmentioning

confidence: 99%

Microseismic Multistage Formation Hydraulic Fracturing (MFHF) Monitoring Analysis Results

Aleksandrov

Kadyrov

Ponomarev

et al. 2018

KEM

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Microseismic monitoring of hydrocarbon fields is one of the promising areas of modern seismology. In recent years, the methodology of microseismic monitoring for seismic emission has been actively developing in the oil and gas industry in order to study the impact of various technogenic processes on the hydrocarbon (HC) fields being developed. The technology does not require powerful sources of sounding signals, but uses constantly existing weak seismic fields of artificial or natural origin. During the development of the field, periodic monitoring of the intensity and spatial position of the zones of microseismic activity allows controling the behavior of HC deposits in order to optimize their development. Distinctive features of this technology are high mobility, fast deployment time, high resolution, and low cost of receiving, transferring and processing of microseismic data. The purpose was to analyze the results and evaluate the effectiveness of MFHF using microseismic monitoring of seismic emission processes. The results were obtained with the help of quantitative microseismic monitoring of seismic foci occurring successively near the well ports at different times during MFHF.

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Применение Геофизических Методов Для Выявления Очагов Генерации, Путей Миграции Углеводородов И Повышения Нефтеотдачи Пластов В Зонах Тектонических Нарушений Волго-Уральской Нефтегазоносной Провинции

Данилова,

Дрягин

2021

Уральский Геофизический Вестник

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Проведен анализ и обобщение геолого-геофизической информации, полученной в результате применения геофизических методов изучения земной коры, способствующих выявлению очагов генерации, путей миграции углеводородов и повышению нефтеотдачи пластов в зонах тектонических нарушений месторождений нефти и газа Волго-Уральской нефтегазоносной провинции. Подтверждено радиально-концентрическое строение разломов фундамента Русской платформы, приуроченность к ним месторождений нефти и газа. Рассмотрены результаты выявления зон трещиноватости при поисках месторождений и повышения нефтеотдачи пластов при их освоении сейсмоакустическими методами. Отмечена продуктивность, экономичность и экологичность технологий. Сделан вывод о том, что комплексное использование различного вида сейсмических волн позволит повысить эффективность поисково-разведочных работ и разработки месторождений нефти и газа. Предложено создать методику выявления очагов генерации, путей миграции углеводородов и повышения нефтеотдачи пластов в зонах тектонических нарушений. Рекомендовано провести комплексный анализ и обобщение всех данных, накопленных геологами и геофизиками по изучению месторождений Волго-Уральской нефтегазоносной провинции с позиции глубинной геодинамики. The analysis and generalization of geological and geophysical information obtained as a result of the use of geophysical methods for studying the earth’s crust, which contribute to the identification of generation centers, hydrocarbon migration routes and enhanced oil recovery in zones of tectonic disturbances of oil and gas fields of the Volga-Ural oil and gas province, have been carried out. The radial-concentric structure of the basement faults of the Russian Platform and the confinement of oil and gas fields to them have been confirmed. The results of detection of fracture zones in the course of field exploration and enhanced oil recovery during their development by seismoacoustic methods are considered. The productivity, efficiency and environmental friendliness of technologies are noted. It is concluded that the integrated use of various types of seismic waves will improve the efficiency of exploration and development of oil and gas fields. It is proposed to create a methodology for identifying generation centers, hydrocarbon migration routes and enhanced oil recovery in zones of tectonic disturbances. It is recommended to carry out a comprehensive analysis and generalization of all the data accumulated by geologists and geophysicists on the study of the fields of the Volga-Ural oil and gas province from the standpoint of deep geodynamics.

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Seismic studies of the unevenness of open fracturing and inhomogeneity of the fluid saturation in the geological environment for optimal development of oil and gas fields

Cited by 4 publications

References 0 publications

The results of the application of the ZetaGel technology at the fields of TPE «Kogalymneftegaz»

The results of the application of the ZetaGel technology at the fields of TPE «Kogalymneftegaz»

Microseismic Multistage Formation Hydraulic Fracturing (MFHF) Monitoring Analysis Results

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