Experience of hydraulic fracturing in oil fields of the Perm region, the Komi Republic and the Nenets autonomous district

Raspopov, A. V.; Kondratiev, S. A.; Sharafeev, R. R.; Novokreschennykh, D.V.; Drozdov, S.A.

doi:10.24887/0028-2448-2019-8-48-51

Cited by 6 publications

(5 citation statements)

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“…The conducted study confirms that the selection of candidate wells for the application of the hydraulic fracturing technology has to be carried out according to the following criteria [32,33]:…”

Section: Figure 1 Well 609 Location Planmentioning

confidence: 53%

Investigation of the Influence of Pressures and Proppant Mass on the Well Parameters after Hydraulic Fracturing

Поплыгин

Pavlovskaia

2021

IJE

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This paper considers the implementation of hydraulic fracturing in an oil field located in the Arkhangelsk region in Russia. During the exploitation, the production rates and injectivity of the injection wells in the field were intensively decreased. To increase well flow rates, hydraulic fracturing of the formation was carried out, and the evaluation of the efficiency was performed. Oil production rates after the fracturing increased 3.2 times and the productivity index increased twice. The influence of the geometrical sizes of fractures on the volume of injected proppant was investigated. An increase in the mass of the injected proppant from 2 to 3 tons per 1 meter of formation thickness leads to an average increase in the crack width by 0.5 mm, and the half-length by 40 m. Well work parameters after hydraulic fracturing of a reservoir were obtained as a function of the original parameters of the reservoir. It was observed that there is a sharp decrease in well production rates after fracturing in wells with low bottom hole pressures. When the pressure at the bottom of the well decreases from 60 to 20 MPa, it leads to an average decrease in the crack width by 2 mm, and the half-length of the crack by 50 m. Direct correlation between the well productivity coefficients after fracturing and the values of bottom hole pressures was observed. The optimal conditions for fracturing were identified, which made it possible to significantly increase the efficiency of the operation.

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Section: Figure 1 Well 609 Location Planmentioning

confidence: 53%

Investigation of the Influence of Pressures and Proppant Mass on the Well Parameters after Hydraulic Fracturing

Поплыгин

Pavlovskaia

2021

IJE

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“…The objects of geological modeling of the Nizovsky deposit are A-4 layers of the Bashkir tier, B-2 of the Bobrikov horizon, C-1 of the Tournaisian tier of the lower Carboniferous and the formation D-I' of the Pashian horizon of the Upper Devonian. The justification of the geological model consists in constructing a model in the form of a three-dimensional grid [Raspopov and Mordvinov, 2010], in which each cell is represented by a hexagon with quadrangular faces, tied in space using a coordinate system. The number of grid cells is usually from several million to about a billion.…”

Section: Object Of Research and Methodsmentioning

confidence: 99%

Geological Filtration Model of the Layers of Nizovsky Field of Volga-Ural Oil and Gas Province

Meretukov,

Toroyan,

Bedanokov

et al. 2023

Russian Journal of Earth Sciences

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The article presents the results of modeling a three-dimensional digital geological filtration model. The substantiation of the volumetric grids of the model is given and the analysis of the distribution of filtration-capacitance properties of layers and models of reservoir saturation with fluids is carried out. Based on the constructed three-dimensional model of Nizovsky field, the reliability of revealing hydrocarbon reserves at the field has been confirmed.

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“…The technology of standard proppant hydraulic fracturing is the main direction of the development of the Verey oil deposits for the research area in recent years is. In the last decade, various modifications of the use of proppant hydraulic fracturing in the development of Verey oil deposits have found the greatest use [16,17]. In all these areas, the high degree of development of reserves of deposits of the main oil horizons forces oil companies to switch to the development of significant residual recoverable reserves of the Verey deposits.…”

Section: Introductionmentioning

confidence: 99%

Modeling of Crack Development Associated with Proppant Hydraulic Fracturing in a Clay-Carbonate Oil Deposit

Galkin¹,

Savitckii²,

Shustov³

et al. 2023

Fluid Dynamics &Amp; Materials Processing

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Survey and novel research data are used in the present study to classify/identify the lithological type of Verey age reservoirs' rocks. It is shown how the use of X-ray tomography can clarify the degree of heterogeneity, porosity and permeability of these rocks. These data are then used to elaborate a model of hydraulic fracturing. The resulting software can take into account the properties of proppant and breakdown fluid, thermal reservoir conditions, oil properties, well design data and even the filtration and elastic-mechanical properties of the rocks. Calculations of hydraulic fracturing crack formation are carried out and the results are compared with the data on hydraulic fracturing crack at standard conditions. Significant differences in crack formation in standard and lithotype models are determined. It is shown that the average width of the crack development for the lithotype model is 2.3 times higher than that for the standard model. Moreover, the coverage of crack development in height for the lithotype model is almost 2 times less than that for the standard model. The estimated fracture half-length for the lithotype model is 13.3% less than that of for the standard model. A higher dimensionless fracture conductivity is also obtained for the lithotype model. It is concluded that the proposed approach can increase the reliability of hydraulic fracturing crack models.

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Experience of hydraulic fracturing in oil fields of the Perm region, the Komi Republic and the Nenets autonomous district

Cited by 6 publications

References 0 publications

Investigation of the Influence of Pressures and Proppant Mass on the Well Parameters after Hydraulic Fracturing

Investigation of the Influence of Pressures and Proppant Mass on the Well Parameters after Hydraulic Fracturing

Geological Filtration Model of the Layers of Nizovsky Field of Volga-Ural Oil and Gas Province

Modeling of Crack Development Associated with Proppant Hydraulic Fracturing in a Clay-Carbonate Oil Deposit

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