Displacement Efficiency for Oil Recovery
21 Questions
1 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is microscopic displacement efficiency?

  • The fraction of PV invaded by the injected fluid
  • The volume of reservoir contacted by the injected fluid
  • The entrapment and mobilization of residual oil (correct)
  • The ratio of viscous to capillary forces
  • What is the Jamin effect?

  • Trapping with fluid bypassing due to channel geometry
  • The ratio of viscous to capillary forces
  • Trapping in a single capillary that requires overcoming a static pressure difference to initiate flow (correct)
  • The assumption that oil is trapped when displacement proceeds faster in one pore than the other
  • What is the pore doublet model?

  • The volume of reservoir contacted by the injected fluid
  • The fraction of PV invaded by the injected fluid
  • The ratio of viscous to capillary forces
  • Assumes oil is trapped when displacement proceeds faster in one pore than the other and assumes pores are water-wet with equal viscosities and densities of oil and water phases (correct)
  • What is capillary number?

    <p>A method of correlating experimental data using dimensionless groupings of variables involving the ratio of viscous to capillary forces</p> Signup and view all the answers

    What is sweep efficiency?

    <p>The volume of reservoir contacted by the injected fluid and the fraction of PV invaded by the injected fluid</p> Signup and view all the answers

    What is volumetric displacement efficiency?

    <p>Used to assess reservoir performance</p> Signup and view all the answers

    What is the impact of wettability on residual oil?

    <p>Changing capillary or viscous forces can impact residual oil at the front and behind the front</p> Signup and view all the answers

    • The entrapment and mobilization of residual oil is known as microscopic displacement ______, influenced by the recovery mechanism.

    <p>efficiency</p> Signup and view all the answers

    • Trapping mechanism is influenced by the porous medium's pore structure, fluids/rock interactions related to ______, and fluid/fluid interactions reflected by IFT.

    <p>wettability</p> Signup and view all the answers

    • Trapping with fluid bypassing occurs due to channel geometry, where an oil drop can become trapped by the ______ effect.

    <p>Jamin</p> Signup and view all the answers

    • The pore doublet model assumes oil is trapped when displacement proceeds faster in one pore than the other and assumes pores are ______-wet with equal viscosities and densities of oil and water phases.

    <p>water</p> Signup and view all the answers

    • Capillary number is a method of correlating experimental data using dimensionless groupings of variables involving the ratio of viscous to ______ forces.

    <p>capillary</p> Signup and view all the answers

    • Correlations of Nca/cosθ, Nca, and Nca(µw/µo)0.4 with residual oil saturation have been established, where Nca stands for ______ number.

    <p>capillary</p> Signup and view all the answers

    • Wettability can affect relative permeability curves, and changing capillary or viscous forces can impact residual oil at the front and behind ______ front.

    <p>the</p> Signup and view all the answers

    Displacement efficiency only includes macroscopic displacement

    <p>False</p> Signup and view all the answers

    Microscopic displacement efficiency involves the mobilization of residual oil

    <p>True</p> Signup and view all the answers

    Trapping mechanism is not influenced by the porous medium's pore structure

    <p>False</p> Signup and view all the answers

    Trapping in a single capillary is known as the Jamin effect

    <p>True</p> Signup and view all the answers

    Trapping with fluid bypassing occurs due to channel geometry

    <p>True</p> Signup and view all the answers

    The pore doublet model assumes oil is trapped when displacement proceeds faster in one pore than the other

    <p>True</p> Signup and view all the answers

    Sweep efficiency is not influenced by properties of the injected and displaced fluids

    <p>False</p> Signup and view all the answers

    Study Notes

    Displacement Efficiency for Secondary and Tertiary Oil Recovery

    • Displacement efficiency includes microscopic and macroscopic displacement.
    • Microscopic displacement efficiency involves the entrapment and mobilization of residual oil, influenced by the recovery mechanism.
    • Trapping mechanism is influenced by the porous medium's pore structure, fluids/rock interactions related to wettability, and fluid/fluid interactions reflected by IFT.
    • Trapping in a single capillary is known as the Jamin effect, which requires overcoming a static pressure difference to initiate flow.
    • Trapping with fluid bypassing occurs due to channel geometry, where an oil drop can become trapped by the Jamin effect.
    • The pore doublet model assumes oil is trapped when displacement proceeds faster in one pore than the other and assumes pores are water-wet with equal viscosities and densities of oil and water phases.
    • EOR process efficiency includes displacement efficiency (microscopic) and volumetric efficiency (macroscopic), influenced by capillary forces, viscous forces, mobility ratio, and viscous gravity ratio.
    • Capillary number is a method of correlating experimental data using dimensionless groupings of variables involving the ratio of viscous to capillary forces.
    • Correlations of Nca/cosθ, Nca, and Nca(µw/µo)0.4 with residual oil saturation have been established.
    • Wettability can affect relative permeability curves, and changing capillary or viscous forces can impact residual oil at the front and behind the front.
    • Sweep efficiency is the volume of reservoir contacted by the injected fluid and the fraction of PV invaded by the injected fluid, influenced by properties of the injected and displaced fluids, geological characteristics of the reservoir rocks, and well pattern geometry.
    • Volumetric displacement efficiency and material balance, as well as areal and vertical displacement efficiencies, are used to assess reservoir performance.

    Displacement Efficiency for Secondary and Tertiary Oil Recovery

    • Displacement efficiency includes microscopic and macroscopic displacement.
    • Microscopic displacement efficiency involves the entrapment and mobilization of residual oil, influenced by the recovery mechanism.
    • Trapping mechanism is influenced by the porous medium's pore structure, fluids/rock interactions related to wettability, and fluid/fluid interactions reflected by IFT.
    • Trapping in a single capillary is known as the Jamin effect, which requires overcoming a static pressure difference to initiate flow.
    • Trapping with fluid bypassing occurs due to channel geometry, where an oil drop can become trapped by the Jamin effect.
    • The pore doublet model assumes oil is trapped when displacement proceeds faster in one pore than the other and assumes pores are water-wet with equal viscosities and densities of oil and water phases.
    • EOR process efficiency includes displacement efficiency (microscopic) and volumetric efficiency (macroscopic), influenced by capillary forces, viscous forces, mobility ratio, and viscous gravity ratio.
    • Capillary number is a method of correlating experimental data using dimensionless groupings of variables involving the ratio of viscous to capillary forces.
    • Correlations of Nca/cosθ, Nca, and Nca(µw/µo)0.4 with residual oil saturation have been established.
    • Wettability can affect relative permeability curves, and changing capillary or viscous forces can impact residual oil at the front and behind the front.
    • Sweep efficiency is the volume of reservoir contacted by the injected fluid and the fraction of PV invaded by the injected fluid, influenced by properties of the injected and displaced fluids, geological characteristics of the reservoir rocks, and well pattern geometry.
    • Volumetric displacement efficiency and material balance, as well as areal and vertical displacement efficiencies, are used to assess reservoir performance.

    Displacement Efficiency for Secondary and Tertiary Oil Recovery

    • Displacement efficiency includes microscopic and macroscopic displacement.
    • Microscopic displacement efficiency involves the entrapment and mobilization of residual oil, influenced by the recovery mechanism.
    • Trapping mechanism is influenced by the porous medium's pore structure, fluids/rock interactions related to wettability, and fluid/fluid interactions reflected by IFT.
    • Trapping in a single capillary is known as the Jamin effect, which requires overcoming a static pressure difference to initiate flow.
    • Trapping with fluid bypassing occurs due to channel geometry, where an oil drop can become trapped by the Jamin effect.
    • The pore doublet model assumes oil is trapped when displacement proceeds faster in one pore than the other and assumes pores are water-wet with equal viscosities and densities of oil and water phases.
    • EOR process efficiency includes displacement efficiency (microscopic) and volumetric efficiency (macroscopic), influenced by capillary forces, viscous forces, mobility ratio, and viscous gravity ratio.
    • Capillary number is a method of correlating experimental data using dimensionless groupings of variables involving the ratio of viscous to capillary forces.
    • Correlations of Nca/cosθ, Nca, and Nca(µw/µo)0.4 with residual oil saturation have been established.
    • Wettability can affect relative permeability curves, and changing capillary or viscous forces can impact residual oil at the front and behind the front.
    • Sweep efficiency is the volume of reservoir contacted by the injected fluid and the fraction of PV invaded by the injected fluid, influenced by properties of the injected and displaced fluids, geological characteristics of the reservoir rocks, and well pattern geometry.
    • Volumetric displacement efficiency and material balance, as well as areal and vertical displacement efficiencies, are used to assess reservoir performance.

    Studying That Suits You

    Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

    Quiz Team

    Related Documents

    Description

    Test your knowledge on Displacement Efficiency for Secondary and Tertiary Oil Recovery with this informative quiz! From microscopic and macroscopic displacement to capillary forces, viscous forces, and mobility ratio, this quiz covers a range of important topics. Learn about the entrapment and mobilization of residual oil, the Jamin effect, and the impact of wettability on relative permeability curves. Explore how sweep efficiency, geological characteristics, and well pattern geometry can affect reservoir performance. Whether you're a student

    More Like This

    Displacement Theory Quiz
    5 questions

    Displacement Theory Quiz

    InspirationalValley avatar
    InspirationalValley
    Displacement in Physics Quiz
    9 questions
    Use Quizgecko on...
    Browser
    Browser