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EVALUATION AND OPTIMIZATION OF STAGES OF HYDRAULIC FRACTURING IN HORIZONTAL WELLS IN A CASE OF TERRIGENOUS AND CARBONATE RESERVOIRS OF FIELD X

Fanil Khusnutdinov, Ilmir Nugmanov, A.V. Nikishin, Mikhail Eryashkin

First published: 2021-12-20https://doi.org/10.5593/sgem2021/1.1/s06.112View metrics

Abstract

Recent years, running of multistage hydraulic fracturing operations are wide-spread in horizontal wells and in mid-term fracing will become main influence method on pay zones in Russia. Against this background, question of evaluation and optimization of multiple frac operations is already open. In spite of the significant number of publications addressed the theme of fracture stages evaluation, there is still very much uncertainties in optimization of stages of hydraulic fracturing. Generally most of hydraulic fracturing operations are produced in reservoirs with poor porosity and permeability. This work, as such reservoir, is presenting terrigenous-carbonate oilfield which is confined to the Volga-Ural oil and gas province. The objective of the study is analysis fracture interference in horizontal wells in a case of terrigenous and carbonates reservoirs. The project describes the approach of estimating the number of frac stages through construction finite-element 3D geomechanical model in ANSYS software. Input parameters for 3D model are evaluated by producing analysis of wellbore stability in Innopolis University Geomechanics software. 3D geomechanical model is lead to evaluate fracture influence distance depending on fracture width and different principal horizontal stresses.

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Title
EVALUATION AND OPTIMIZATION OF STAGES OF HYDRAULIC FRACTURING IN HORIZONTAL WELLS IN A CASE OF TERRIGENOUS AND CARBONATE RESERVOIRS OF FIELD X
Authors
Fanil Khusnutdinov, Ilmir Nugmanov, A.V. Nikishin, Mikhail Eryashkin
Proceedings
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 21st SGEM International Multidisciplinary Scientific GeoConference Proceedings 2021, Science and Technologies in Geology, Exploration And Mining
Publisher
STEF92 Technology
Year
2021
Pages
911-918
SWS Citekey
20216911918
ISSN
1314-2704
ISBN
978-619-7603-62-0
Language
en
Publication type
Conference Paper
Keywords
Geomechanicsmultistage hydraulic fracturingfinite-element modelreservoir
References4

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  3. Zoback M., Khaksar A. Empirical relations between rock strength and physical properties in sedimentary rocks / Journal of Petroleum Science and Engineering, p. 223-237, 2006.

  4. Cinco L.H., Samaniego V.F., Dominguez N. Transient Pressure Behavior for a Well With a Finite-Conductivity Vertical Fracture//Soc. Pet. Eng. J., V. 18 (4), p. 253–264, 1987.

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