scholarly journals Justification and selection of rational parameters of drilling piles of engineering structures (on the example of soil conditions of the Chayandinskoye oil and gas condensate field)

2021 ◽  
Vol 1791 (1) ◽  
pp. 012008
Author(s):  
V V Gruzin ◽  
A V Gruzin
Keyword(s):  
Oil And Gas ◽  
Gas Condensate ◽  
Soil Conditions ◽  
Engineering Structures ◽  
Selection Of

scholarly journals JUSTIFICATION AND SELECTION OF RATIONAL PARAMETERS OF DRILLING PILES OF ENGINEERING STRUCTURES (ON THE EXAMPLE OF SOIL CONDITIONS OF THE CHAYANDINSKOYE OIL AND GAS CONDENSATE FIELD)

2020 ◽  
Vol 8 (1) ◽  
pp. 029-035
Author(s):  
V. V. Gruzin ◽  
◽  
A. V. Gruzin ◽  
Keyword(s):  
Oil And Gas ◽  
Gas Condensate ◽  
Soil Conditions ◽  
Engineering Structures ◽  
Selection Of

Решение задачи рационального использования строительных материалов при обустройстве вновь осваиваемых месторождений позволяет минимизировать непроизводительный расход привлекаемых ресурсов. Целью выполненных исследований была разработка рекомендаций по выбору рациональных параметров буроопускных свай инженерных сооружений, возводимых на грунтах Чаяндинского нефтегазоконденсатного месторождения. С помощью существующих методик был выполнен расчёт несущей способности основания вертикально нагруженной висячей сваи. Выбор в качестве целевого параметра, характеризующего эффективность использования строительных материалов, удельной несущей способности позволил дать комплексную оценку влиянию как конструктивных параметров, так и природных факторов на несущую способность буронабивных свай по грунту основания. В ходе теоретических расчётов установлен сложный характер влияния как геометрических характеристик сваи, так и грунтовых условий на целевой параметр. Для инженерно-геологических условий Чаяндинского нефтегазоконденсатного месторождения было установлено, что рациональными являются использование свай увеличенного диаметра 0.4-0.5 м и длиной не более 6 м в грунтах с температурой не выше -2.0 ºC и с льдистостью не более 0.2...

scholarly journals Chemical dispersants enhance the activity of oil- and gas condensate-degrading marine bacteria

2017 ◽  
Vol 11 (12) ◽  
pp. 2793-2808 ◽  
Author(s):  
Julien Tremblay ◽  
Etienne Yergeau ◽  
Nathalie Fortin ◽  
Susan Cobanli ◽  
Miria Elias ◽  
...  
Keyword(s):  
Marine Bacteria ◽  
Oil And Gas ◽  
Gas Condensate

Determination of Bubble-Point and Dew-Point Pressure Without a Visual Cell

2014 ◽  
Author(s):  
R.. Hosein ◽  
R.. Mayrhoo ◽  
W. D. McCain
Keyword(s):  
Oil And Gas ◽  
Saturation Pressure ◽  
Volatile Oil ◽  
Phase Region ◽  
Gas Condensate ◽  
Dew Point ◽  
Bubble Point ◽  
Point Pressure ◽  
Dew Point Pressure

Abstract Bubble-point and dew-point pressures of oil and gas condensate reservoir fluids are used for planning the production profile of these reservoirs. Usually the best method for determination of these saturation pressures is by visual observation when a Constant Mass Expansion (CME) test is performed on a sample in a high pressure cell fitted with a glass window. In this test the cell pressure is reduced in steps and the pressure at which the first sign of gas bubbles is observed is recorded as bubble-point pressure for the oil samples and the first sign of liquid droplets is recorded as the dew-point pressure for the gas condensate samples. The experimental determination of saturation pressure especially for volatile oil and gas condensate require many small pressure reduction steps which make the observation method tedious, time consuming and expensive. In this study we have extended the Y-function which is often used to smooth out CME data for black oils below the bubble-point to determine saturation pressure of reservoir fluids. We started from the initial measured pressure and volume and by plotting log of the extended Y function which we call the YEXT function, with the corresponding pressure, two straight lines were obtained; one in the single phase region and the other in the two phase region. The point at which these two lines intersect is the saturation pressure. The differences between the saturation pressures determined by our proposed YEXT function method and the observation method was less than ± 4.0 % for the gas condensate, black oil and volatile oil samples studied. This extension of the Y function to determine dew-point and bubble-point pressures was not found elsewhere in the open literature. With this graphical method the determination of saturation pressures is less tedious and time consuming and expensive windowed cells are not required.

The calculation of required fire resistance limits for engineering structures of technological pipe racks at oil and gas processing plants on the basis of an evaluation of the time needed for personnel evacuation and rescue in case of fire

2021 ◽  
Vol 30 (5) ◽  
pp. 58-65
Author(s):  
A. Yu. Shebeko ◽  
Yu. N. Shebeko ◽  
A. V. Zuban
Keyword(s):  
Fire Resistance ◽  
Oil And Gas ◽  
Probabilistic Method ◽  
Processing Plant ◽  
Engineering Structures ◽  
Gas Processing ◽  
Processing Plants ◽  
The One ◽  
In Fire ◽  
Rescue Time

Introduction. GOST R 12.3.047-2012 standard offers a methodology for determination of required fire resistance limits of engineering structures. This methodology is based on a comparison of values of the fire resistance limit and the equivalent fire duration. However, in practice incidents occur when, in absence of regulatory fire resistance requirements, a facility owner, who has relaxed the fire resistance requirements prescribed by GOST R 12.3.047–2012, is ready to accept its potential loss in fire for economic reasons. In this case, one can apply the probability of safe evacuation and rescue to compare distributions of fire resistance limits, on the one hand, and evacuation and rescue time, on the other hand.A methodology for the identification of required fire resistance limits. The probabilistic method for the identification of required fire resistance limits, published in work [1], was tested in this study. This method differs from the one specified in GOST R 12.3.047-2012. The method is based on a comparison of distributions of such random values, as the estimated time of evacuation or rescue in case of fire at a production facility and fire resistance limits for engineering structures.Calculations of required fire resistance limits. This article presents a case of application of the proposed method to the rescue of people using the results of full-scale experiments, involving a real pipe rack at a gas processing plant [2].Conclusions. The required fire resistance limits for pipe rack structures of a gas processing plant were identified. The calculations took account of the time needed to evacuate and rescue the personnel, as well as the pre-set reliability of structures, given that the personnel evacuation and rescue time in case of fire is identified in an experiment.

COMPUTER MODELING OF THE SAND BODIES DEPOSITIONAL HISTORY OF THE MIDDLE JURASSIC PETROLEUM PLAY (BY THE EXAMPLE OF THE GERASIMOVSKOE FIELD, WESTERN SIBERIA)

2020 ◽  
pp. 8-13
Author(s):  
M. O. Fedorovich ◽  
◽  
A. Yu. Kosmacheva ◽  
Keyword(s):  
Middle Jurassic ◽  
Oil And Gas ◽  
Gas Condensate ◽  
Facies Modeling ◽  
Depositional History ◽  
Sedimentary Environments ◽  
History Of ◽  
Underwater Slope ◽  
Mouth Bars ◽  
Sand Bodies

The present paper describes the DIONISOS software package (Beicip-Technologies), where the reconstruction of the accumulation conditions and facies modeling of sand reservoirs Yu10, Yu9, Yu8, Yu7 and Yu6 of the Tyumenskaya Formation and carbonaceous-clay members acting as fluid seals within the Gerasimovskoye oil and gas condensate field located in the south of the Parabel district of the Tomsk region. Reconstructions of facies environments make it possible to consistently restore conditions and create a general principled model of the accumulation of sandy-argillaceous deposits of the Middle Jurassic PP in a given territory. Polyfacies deposits of the Bajocian are represented by sands of distributaries and stream-mouth bars, underwater slope of delta, above-water and underwater delta plains, argillaceous-carbonaceous sediments of floodplain lakes, bogs, marshes and lagoons, clays formed at the border of the above-water and underwater deltaic plains, silt deposits of above-water and underwater delta plains, prodelta clays. As a result of the 3D facies model construction, it is shown that the subcontinental sedimentary environments of sand reservoirs Yu10–Yu8 are replaced by deltaic and floodplain-lacustrine-boggy ones, and the formation of Yu7–Yu6 reservoirs occurs in conditions of coastal plain, periodically flooded by the sea. In total, 5 lithotypes of sand deposits have been identified, 1 – argillaceous-carbonaceous, 2 – argillaceous and 1 – silty. Computer facies 3D modeling of the sand bodies assemblage (hydrocarbon reservoirs) of the Bajocian age for the Gerasimovskoye oil and gas condensate field has been performed.

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