Prospects for the use of acid gel for proppant fracturing of carbonate reservoirs in the Samara region

Gilaev, G.G.; Khabibullin, M.Ya.

doi:10.24887/0028-2448-2020-8-54-57

Cited by 16 publications

(5 citation statements)

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“…Large-volume selective acidizing technology as a method for intensifying oil production in conditions of high depletion of reserves is impractical due to the low duration of the effect. Similar efficiency can be achieved by less expensive methods of affecting the carbonate reservoir [15][16][17][18].…”

Section: Resultsmentioning

confidence: 80%

Features of bottomhole zone treatment and formation stimulation by large volumes of hydrochloric solutions

Fattakhov,

Kuleshova,

Samigullina

2024

E3S Web Conf.

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The study confirms the hypotheses on the impact of the injection rate and the specific flow rate of the acid composition on the efficiency of treatments. Factors that increase the risk of inefficient measures were identified: fracture pressure excess during the implementation of the technology significantly increases the risk of water flooding of a well after treatment; energy state of the formation – level of formation pressure at targeted development is below 40% of the initial state; presence of active water-saturated feed zones that support formation energy during development, but increase the risk of water breakthrough. The following changes to the technology were proposed to increase the efficiency of carbonate reservoir treatment: when calculating the planned volumes of the acid composition to use specific parameters depending on the length of the treated interval or perforated thickness; acid composition is injected at the maximum possible specific flow rate (at least 1.8 m3/h per meter) without exceeding the fracture pressure; to reduce the minimum permissible level for large-volume acid treatments of formation pressure from 60 to 40% of the initial level.

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Section: Resultsmentioning

confidence: 80%

Features of bottomhole zone treatment and formation stimulation by large volumes of hydrochloric solutions

Fattakhov,

Kuleshova,

Samigullina

2024

E3S Web Conf.

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“…Для предотвращения поступления песка из пласта и удержания гравия на забое скважины при создании гравийных набивок применяют щелевые, проволочные, кольцевые, титановые, металлокерамические и другие фильтры [3][4][5][6][7][8]. Эти фильтры, установленные в интервале перфорации обсадной колонны без образования гравийной наружной кольцевой набивки (а именно таким образом в большинстве скважин устанавливаются фильтры на месторождениях России), очень часто забиваются пластовым песком, что приводит к снижению продуктивности скважин [9].…”

Section: методологияunclassified

“…Внутренний зазор больше диаметра зерен песка в 50% точке, но меньше половины диаметра зерен в 85% точке интегральной кривой d 50 < δ внутр < d 85 ). Кубанский государственный технологический университет, Институт нефти, газа и энергетики, Краснодар, Россия; 2 Филиал Уфимского государственного нефтяного технического университета в г. Октябрьский, Россия;3 Уфимский государственный нефтяной технический университет, Уфа, Россия…”

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Research of the resistance process of casing column filters at their contact with rock

Gilaev¹,

Khabibullin²,

Bakhtizin³

2021

SOCAR Proceedings

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The analysis of theoretical solutions and experimental data given in numerous literatures to justify the choice of the ratio of the size of gravel in relation to the size of formation sand showed that with the development of experimental methods and the accumulation of laboratory and field data, this ratio tends to decrease. When installing filters in an open hole, pressure losses at the interface between gravel and the formation play a significant role, and it should be noted that the greatest productivity and efficiency of the filter in an open hole is achieved when there is a packing around it, which can be created by crushing the sandy massif of the formation by cyclical changes debit. When choosing a filter design, along with the ability to provide them with a reliable hydraulic connection in the reservoir-filter system, the main task is also solved - to prevent sand flow into the well. The study of the conditions for the removal of sand particles through the flow sections in perforated, mesh and slotted filters during their operation both in homogeneous and in sands of different size, made it possible to recommend empirical dependences for determining the size of the holes. Keywords: porous medium; coarse fraction; sand; particle; well.

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“…В рамках анализа [8][9][10] влияния на производственный процесс определено 4 основных направления реинжиниринга на зрелом активе, которые являются фундаментом производственного процесса в части наземной инфраструктуры. Для организации раннего сброса, наиболее эффективными решениями являются установки предварительного сброса пластовой воды (КДФТ) (рис.…”

Section: решение проблематикиunclassified

Improvement of oil and gas production infrastructure as an effective tool for maintaining basic oil and gas production

Gilaev¹,

Khabibullin²,

Bakhtizin³

2021

SOCAR Proceedings

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The modern world is a complex mechanism in which each process, direction, sphere of activity, despite visual differences, ultimately creates a single complex element aimed at ensuring human life. One of the key processes occurring on the planet is the extraction of hydrocarbons. The article proposes to consider a solution that will contribute to ensuring the efficiency of oil and gas production processes, will extend the life cycle of mature oil and gas production assets of the Russian Federation (hereinafter referred to as the RF) and extend their economic profitability. Economic and technological efficiency from infrastructure reengineering measures is individual for each region, and directly depends on the volume of oil, water production and the state of the ground infrastructure. The described areas of infrastructure reengineering, in aggregate, represent an effective tool for optimizing operating and capital costs, increasing the reliability of technological equipment, removing infrastructure restrictions, which will contribute to the achievement of the set task - maintaining oil production at mature assets. Keywords: facilities for oil treatment; gas compression; reservoir pressure maintenance; power supply; engineering networks; operating costs; reengineering.

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Prospects for the use of acid gel for proppant fracturing of carbonate reservoirs in the Samara region

Cited by 16 publications

References 0 publications

Features of bottomhole zone treatment and formation stimulation by large volumes of hydrochloric solutions

Features of bottomhole zone treatment and formation stimulation by large volumes of hydrochloric solutions

Research of the resistance process of casing column filters at their contact with rock

Improvement of oil and gas production infrastructure as an effective tool for maintaining basic oil and gas production

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