Risultati della ricerca - "horizontal wells"

Background. The production of oil and gas by horizontal wells, despite all its advantages, is subject to exploratory and operational complications. At the final stage of their development, such fields become hard-to-recover reserves. Production of oil and gas is often associated with a high water cu...

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Introduction. The article presents the results of experimental studies of the applicability of the method of regular thermal labels for solving practical problems in a horizontal well. According to the obtained results the estimation of the minimum and maximum gauge length between two adjacent contr...

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To date, significant foreign and domestic experience has been accumulated in the construction and operation of horizontal, multilateral and multilateral wells, as well as the restoration of an idle well stock by drilling sidetracks and sidetracks into various productive formations: low-permeability...

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Horizontal wells have revolutionized hydrocarbon production by enhancing recovery efficiency and reducing environmental impact. This paper presents an enhanced Black Oil Model simulator, written in Visual Basic, for three-dimensional two-phase (oil and water) flow through porous media. Unlike most e...

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This paper presents the results of geological and production analysis of development and reserves of the pilot area using the results of dynamic marker monitoring of horizontal wellbores of production wells using high-precision indicators. As part of the research, the geological structure of the res...

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The paper is devoted to the problem of increasing the effectiveness of temperature logging quantitative interpretation for the inflow profile evaluation in horizontal production wells draining heterogeneous reservoirs with low permeability. Such wells are characterized by an extremely uneven distrib...

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Multi-stage fractured horizontal wells (MSFHWs) represent a crucial development approach for low-permeability reservoirs, where accurate productivity prediction is essential for production operations. However, existing models suffer from limitations such as inadequate characterization of complex flo...

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The methods developed by the world community to date to withstand strong natural and induced destructive earthquakes do not effectively reduce material losses and the number of victims. The authors propose for discussion an integrated approach to solving the problem of ensuring seismic safety, based...

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This article reviews the evolution of hydraulic fracturing (HF) technologies for the carbonate sediments of the kashirsky and podolsky horizons of the Arlanskoe oilfield (the Republic of Bashkortostan and the Udmurt Republic) by the influence of changes in current development conditions, reserve dep...

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The article describes a numerical-analytical model for gas breakthrough to a well during the development of oil fields with a gas cap using horizontal wells. The employed semi-analytical model allows describing the process of gas cone development and reproducing oil and gas production parameters fro...

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The practical aspects are discussed in the geodynamic studies of the massive vugular-fractured oil-and-gas reservoir in the Riphean carbonate rocks of the Yurubcheno-Tokhoma oil-gas-condensate field in the Baikit petroli­ferous district. This field is a part of the Yurubcheno-Tokhoma zone that inclu...

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ABSTRACT In the drilling process of large‐offset three‐dimensional (3D) horizontal wells, the issue of cuttings transport is a critical concern for wellbore cleanliness and downhole safety. Significant accumulation of cuttings can lead to various downhole accidents, such as excessive torque and drag...

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The gas-production potential of shale gas is a comprehensive evaluation metric that assesses the reservoir quality, gas-content properties, and gas-production capacity. Currently, the evaluation of gas-production potential is generally conducted through qualitative comparisons of relevant parameters...

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During the drilling of ultrashort-radius radial horizontal well with flexible drill string， the vertical shift of wellbore trajectory affects the encountering rate of target points. To reveal the dynamic characteristics of horizontal drilling with flexible drill string and reduce the vertical shift...

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To achieve a refined evaluation of the effect of hydraulic fracturing in surface horizontal wells, the characteristics of the drilling construction layers of the U1 and U2 horizontal sections in Zhujidong Coal Mine were analyzed. The fracturing effects of different layers in each section of the U1 a...

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With the unconventional energy sector (e.g., shale gas) increasingly focused on precision drilling and cost-effective extraction, slim-hole horizontal well technology is gaining prominence. However, drill string dynamics in narrow, complex fluid environments are not fully understood. This study pres...

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The efficiency of using horizontal drilling technology largely depends on a number of factors, including the geological structure of the productive formation, fracturing, anisotropy, heterogeneity, porosity, and permeability. This necessitates the design of the process of oil inflow to the horizonta...

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There is a view on the issue of calculating gas inflow towards a multi-barrelled horizontal well in a strip bed. There is a mathematical model combining a joint solution for an equation of gas filtration in the bed and the equations to describe gas flow within the barrels of the horizontal well. The...

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In view of the difficult problem of strip gas extraction in coal roadways of broken soft and low permeability coal seam, this paper puts forward the technology of segment fracturing and high efficient pre-gas extraction in horizontal wells of strip roof of coal roadways of coal roadways.For balanced...

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Inthe southern areas of the Siberian platform, geological and mining conditions are highly complex for design, drilling and construction of deep wells for oil and gas. Complicating factors are related to specific features of deforming cavity-fractured carbonate reservoirs. Geological models of carbo...

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