Thermal EOR Methods and Oil Recovery Mechanism Quiz
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Questions and Answers

What is the primary difference between cyclic steam injection and steam flooding as thermal EOR methods?

  • Cyclic steam injection involves injecting steam in cycles, while steam flooding involves continuous steam injection (correct)
  • Cyclic steam injection is a type of in-situ combustion, while steam flooding is not
  • Cyclic steam injection is a chemical EOR method, while steam flooding is a thermal EOR method
  • Cyclic steam injection is only effective for shallow oil reservoirs, while steam flooding is effective for both shallow and deep reservoirs

    • What is the main purpose of in-situ combustion as a thermal EOR method?

  • To inject chemicals into the reservoir to improve oil recovery
  • To create a combustion front that heats the reservoir and reduces oil viscosity (correct)
  • To inject steam into the reservoir to displace oil towards production wells
  • To increase the temperature of the reservoir and reduce oil viscosity

    • What is the main difference between steam assisted gravity drainage (SAGD) and electrical heating as thermal EOR methods?

  • SAGD is only effective for shallow oil reservoirs, while electrical heating is effective for both shallow and deep reservoirs
  • SAGD involves injecting steam into the reservoir, while electrical heating involves using electrodes to heat the reservoir (correct)
  • SAGD is a type of in-situ combustion, while electrical heating is not
  • SAGD is a chemical EOR method, while electrical heating is a thermal EOR method

    • Thermal flooding is not considered an effective secondary or tertiary oil recovery method

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

    Steam flooding is a type of thermal EOR method

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

    In-Situ Combustion is the only thermal EOR method that does not involve injecting steam

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

    Thermal flooding is a type of secondary or tertiary oil recovery method

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

    Steam Assisted Gravity Drainage (SAGD) is a thermal EOR method

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

    Electrical Heating is a type of chemical EOR method

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

    What are the thermal EOR methods mentioned in the text?

    <p>Cyclic Steam Injection, Steam Flooding, In-Situ Combustion, Electrical Heating</p> Signup and view all the answers

    What is the main difference between cyclic steam injection and steam assisted gravity drainage (SAGD)?

    <p>Cyclic steam injection involves injecting steam in a cyclic process while SAGD involves continuous steam injection</p> Signup and view all the answers

    What is the primary oil recovery mechanism in in-situ combustion?

    <p>Combustion of crude oil in the reservoir</p> Signup and view all the answers

    Thermal EOR methods involve the injection of ______ to improve oil recovery.

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

    Cyclic steam injection is a thermal EOR method that involves the injection of steam followed by a ______ period.

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

    In-Situ Combustion is a thermal EOR method that involves the combustion of ______ in the reservoir to improve oil recovery.

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

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