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Geomechanics of Oil and Gas Wells

  • 2020
  • Buch
Verfasst von
Prof. Vladimir Karev
Prof. Yuri Kovalenko
Prof. Konstantin Ustinov
Buchreihe
Advances in Oil and Gas Exploration & Production
Verlag
Springer International Publishing
Enthalten in
Springer Professional "Wirtschaft+Technik"
Springer Professional "Technik"

Über dieses Buch

The book presents an integrated approach to studying the geomechanical processes occurring in oil and gas-bearing formations during their development. It discusses the choice of a model that takes into account the basic properties of rocks; experiments to find model parameters; numerical modeling; and direct physical modeling of deformation and filtration processes in reservoir and host rocks. Taking into account features of rock behavior, such as anisotropy of the mechanical properties of rocks during elastoplastic deformation; dependence of permeability on the total stress tensor; the contribution of the filtration flow to the formation stress state; and the influence of tangential as well as normal stresses on the transition to inelastic deformation, it demonstrates how the presented approach allows the practical problems of increasing the productivity of wells, oil recovery, and ensuring the stability of wellbores to be solved.
The book is intended for specialists, including geoengineers working in the oil and gas sector, teachers, graduate students and students, as well as all those interested in scientific and technological developments to meet the enormous demand for raw materials and energy.

Inhaltsverzeichnis

  1. Frontmatter

  2. Chapter 1. Stress-Strain State of Rocks

    Vladimir Karev, Yuri Kovalenko, Konstantin Ustinov
    Abstract
    By definition, geomechanics is a theoretical and applied science of the mechanical properties of rocks and mechanical processes, which studies the stress-strain fields that occur in a specific physical environment (Baklashov and Kartozia 1975). In modern petroleum industry, geomechanics is a discipline that combines rock mechanics, geophysics, petrophysics and geology in order to calculate the Earth’s response to any changes in rock stress, pore pressure and temperature of the reservoir and host rocks.

  3. Chapter 2. Deformation and Fracture of Rocks in the Presence of Filtration

    Vladimir Karev, Yuri Kovalenko, Konstantin Ustinov
    Abstract
    A complete system of equations in the presence of filtration of fluid includes equations that describe filtration, as well as equations that ensure the connection of filtration and deformation processes.

  4. Chapter 3. Mechanical and Mathematical, and Experimental Modeling of Oil and Gas Well Stability

    Vladimir Karev, Yuri Kovalenko, Konstantin Ustinov
    Abstract
    Nowadays, technologies of oil and gas field development based on drilling of inclined and horizontal wells, as well as underbalanced drilling when drilling mud pressure in the well below the oil (gas) formation pressure, are becoming more and more widespread. However, there are problems associated with wellbore instability, which did not exist before.

  5. Chapter 4. Equipment for Studying Deformation and Strength Properties of Rocks in Triaxial Loading

    Vladimir Karev, Yuri Kovalenko, Konstantin Ustinov
    Abstract
    The development of hydrocarbon fields is a complex problem, which requires knowledge and experience accumulated in various fields of science and engineering practice.

  6. Chapter 5. Loading Programs for Rock Specimens on Triaxial Independent Loading Test System (TILTS)

    Vladimir Karev, Yuri Kovalenko, Konstantin Ustinov
    Abstract
    The program of triaxial testing of rock specimens is aimed at determining the stresses required to fracture the rock specimen at various levels of comprehensive compression.

  7. Chapter 6. Dependence of Permeability on Stress State

    Vladimir Karev, Yuri Kovalenko, Konstantin Ustinov
    Abstract
    The role of stresses occurring in oil and gas formations is not limited by their influence on well stability during drilling and processing.

  8. Chapter 7. Influence of Filtration on Stress–Strain State and Rock Fracture in the Well Vicinity

    Vladimir Karev, Yuri Kovalenko, Konstantin Ustinov
    Abstract
    Above, the influence of stress states on the permeability of rocks and, as a consequence, on filtration of oil and gas in productive formations was considered.

  9. Chapter 8. Results of Tests of Rock Specimens by Using TILTS

    Vladimir Karev, Yuri Kovalenko, Konstantin Ustinov
    Abstract
    Theoretical and experimental studies performed in Laboratory of Geomechanics of Ishlinsky Institute for Problems in Mechanics RAS have demonstrated that the geomechanical approach may serve as the basis for solving the most important problems arising during the development of oil and gas fields: ensuring the stability of wellbores during drilling and operation, increasing the productivity of oil and gas wells, and increasing oil and gas recovery from reservoirs

  10. Chapter 9. Mathematical Modeling of Mechanical and Filtration Processes in Near-Wellbore Zone

    Vladimir Karev, Yuri Kovalenko, Konstantin Ustinov
    Abstract
    Two groups of problems related to mathematical modeling are considered. The first group is devoted to finding the stress–strain state near the wellbores both for the purposes of determination of technological parameters that ensure the wellbores stability and for initiation the process of controlled fracture (method of directed unloading of the formation, see Chap. 10) (Karev et al. 2017; Klimov et al. 2009).

  11. Chapter 10. Directional Unloading Method is a New Approach to Enhancing Oil and Gas Well Productivity

    Vladimir Karev, Yuri Kovalenko, Konstantin Ustinov
    Abstract
    Numerous studies of core material on TILTS allowed developing a new method of enhancing the productivity of oil and gas wells—the method of directional unloading of a reservoir.
Titel
Geomechanics of Oil and Gas Wells
Verfasst von
Prof. Vladimir Karev
Prof. Yuri Kovalenko
Prof. Konstantin Ustinov
Copyright-Jahr
2020
Electronic ISBN
978-3-030-26608-0
Print ISBN
978-3-030-26607-3
DOI
https://doi.org/10.1007/978-3-030-26608-0

Informationen zur Barrierefreiheit für dieses Buch folgen in Kürze. Wir arbeiten daran, sie so schnell wie möglich verfügbar zu machen. Vielen Dank für Ihre Geduld.