Results of Scientific and Technical Supervision of Hydraulic Fracturing Operations

Makhmutov, I. Kh.; Салимов, О В; Girfanov, I.I.; Zayatdinov, R.Z.; Mansurov, A.U.; Kochetkov, A.V.

doi:10.18599/grs.19.4.11

Cited by 2 publications

(1 citation statement)

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“…The problem comes from the fact that a more fluid -water, ahead of oil, fills the most permeable channels. For this reason, hydraulic fracturing is unacceptable for use near bottom and contour waters, as well as in close proximity to flooded interlayers [4]. The solution to the existing problem is to limit their half-length and height, through the use of technological solutions with reduced viscosity [5].…”

Section: Introductionmentioning

confidence: 99%

Elimination of uncertainties in solving the problems of ensuring the profitability of hydraulic fracturing using FiberFrac technology

2023

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The main type of geological and technical measures in the oil fields of Western Siberia today is hydraulic fracturing. The widespread use of this method of intensifying oil production is due to its undeniable advantages over other technologies. However, hydraulic fracturing is not without significant drawbacks - clogging of the bottomhole zone with proppant and products of chemical reactions, as well as premature watering of well products. All of the above is the reason for the relevance of improving this event. The FiberFrac technology is proposed, the essence of which is to add the chemical reagent of the same name to the process fluid with further formation of a reinforcing mesh in the last one. The purpose of the article is to study the features of the physico-chemical properties of the FiberFrac solution using the analysis of geological and field data, to evaluate the technical and economic efficiency of the application of this measure based on the correlation analysis of statistical data and the calculation of economic efficiency using the discount method, to substantiate the advantages of FiberFrac over the standard operation hydraulic fracturing.

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Section: Introductionmentioning

confidence: 99%

Elimination of uncertainties in solving the problems of ensuring the profitability of hydraulic fracturing using FiberFrac technology

2023

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Study of texture changes in the emptiness of rocks under the tension conditions by electron microscopy methods

Osovetsky,

Kazymov,

Kolychev

et al. 2023

Georesursy

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On the example of an oil deposit of the Vereisk age which is one of the deposits in the Volga-Urals, lithotypes of rocks are distinguished, characterized by a fundamentally different structure of the void space. For selected lithotypes experiments were carried out on core samples with a change in the stress state of rocks under conditions of volumetric (pseudo-triaxial) compression. The pressure created in the experiments is identified with the development of processes at a distance from the epicenter of the hydraulic fractures appearance. Core samples were studied before and after exposure by non-destructive testing methods. The study of the sample structures by standard and tomographic methods did not allow us to establish significant changes during loading of the samples. At the same time, some increase in rock permeability was established in experiments. With this in mind, the samples were studied according to a technique specially developed by the authors using electron microscopy. The use of microscopic studies made it possible to obtain quantitative information about the change in the void space at a level inaccessible to X-ray tomography. As a result, it was found that both for potential reservoirs and for impermeable rocks, there is an increase in the length and opening of pre-existing fractures, which can be considered as the formation of additional effective fluid filtration channels. The experiments performed have changed the idea of the process of hydraulic fracture development and can be used in geological and technological calculations.

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Results of Scientific and Technical Supervision of Hydraulic Fracturing Operations

Cited by 2 publications

References 1 publication

Elimination of uncertainties in solving the problems of ensuring the profitability of hydraulic fracturing using FiberFrac technology

Elimination of uncertainties in solving the problems of ensuring the profitability of hydraulic fracturing using FiberFrac technology

Study of texture changes in the emptiness of rocks under the tension conditions by electron microscopy methods

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