Experimental study of pipeline movements in permafrost soils

Султанмагомедов, Тимур Султанмагомедович; Bakhtizin, R. N.; Султанмагомедов, Султанмагомед Магомедтагирович

doi:10.5510/ogp20200400468

Cited by 3 publications

(3 citation statements)

References 1 publication

(1 reference statement)

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“…Модель трубопровода представляет собой тело типа shell, модель опорно-центрирующего устройства -solid. В работе [15] описаны методы моделирования перемещений трубопровода. На рис.…”

Section: методика определения напряженнодеформированного состоянияunclassified

Method of Analysis of the Stress-Strain State of a Base-Centering Device and a Pipeline When Carrying Out the Complex of Emergency and Recovery Repairs

Rakhmatullina¹,

Алексеев²,

Султанмагомедов³

et al. 2023

IZVESTIYA

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Link for citation: Rakhmatullina Yu.A., Alekseev V.A., Sultanmagomedov T.S., Khasanov R.R. Method of analysis of the stress-strain state of a base-centering device and a pipeline when carrying out the complex of emergency and recovery repairs. Bulletin of the Tomsk Polytechnic University. Geo Аssets Engineering, 2023, vol. 334, no. 7, рр.7-16. In Rus. The relevance of the research is caused by the need to carry out calculations of the stress-strain state of the support-centering device and the pipeline, when the device under consideration is exposed to it, when the axes are displaced due to the presence of residual stresses when carrying out a complex of emergency repair by cutting out a defective section of the pipeline. The purpose of the study is to assess the possibility of using the design of the device and to calculate the stress-strain state of the device when the axes of the boundary sections of the pipeline are displaced due to the release of prestresses during the emergency repair complex for cutting out the defective section of the pipeline. Methods: methods of classical theoretical mechanics, soil mechanics, finite element method. Results. Based on the patent, a preliminary 3D model of the support-centering device and a method for analyzing the boundary conditions and loads affecting the device and the pipeline during the emergency repair complex were developed. The calculation of SSS (stress-strain state) was carried out, where the following results were obtained: when the frame is displaced down/up by 100 mm in the device, respectively, along the length and displacement, stresses arise at the junctions of the enclosing ring and the frame, as well as on the «lugs», exceeding the yield strength of steel; the coefficient of friction μ for the considered diameter of 1020 mm should not exceed 0,15 to prevent the occurrence of areas of plastic deformation of the pipeline during the emergency repair complex for cutting out a defective area in swamp conditions.

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Section: методика определения напряженнодеформированного состоянияunclassified

Method of Analysis of the Stress-Strain State of a Base-Centering Device and a Pipeline When Carrying Out the Complex of Emergency and Recovery Repairs

Rakhmatullina¹,

Алексеев²,

Султанмагомедов³

et al. 2023

IZVESTIYA

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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

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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“…При длительной эксплуатации месторождений, несмотря на проводимые ГТМ, со временем наблюдается снижение объема добычи жидкости. Нагрузка на систему сбора, подготовки и транспортировки, эксплуатируемая при «пиковых» уровнях добычи, постепенно снижается, что дает возможность оценки направления на предмет оптимизации затрат [22][23][24].…”

Section: вывод объектов из эксплуатацииunclassified

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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Experimental study of pipeline movements in permafrost soils

Cited by 3 publications

References 1 publication

Method of Analysis of the Stress-Strain State of a Base-Centering Device and a Pipeline When Carrying Out the Complex of Emergency and Recovery Repairs

Method of Analysis of the Stress-Strain State of a Base-Centering Device and a Pipeline When Carrying Out the Complex of Emergency and Recovery Repairs

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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