Reservoir Development and Production Quiz
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Questions and Answers

Which of the following is NOT a drive mechanism for the Ekofisk reservoir?

  • Water Drive (correct)
  • Compaction Drive
  • Solution Gas Drive
  • Pressure depletion

What was the original recoverable reserves of the Ekofisk reservoir?

  • 3.3 billion bbls oil (correct)
  • 5.6 TCF gas
  • 3.3 billion bbls oil and 5.6 TCF gas
  • None of the above

What was the development decision for the Ekofisk reservoir made?

  • 1973
  • 1974
  • 1972 (correct)
  • 1971

Which year did Ekofisk production license get extended to?

<p>2022 (A)</p> Signup and view all the answers

What is the approximate value of 6 million m3 of oil in euros at $50/bbl?

<p>2 billion (A)</p> Signup and view all the answers

Which seismic technique was used to identify a fault/fracture causing unwanted flow connection between water injector I1 and producer P1?

<p>4D seismic (A)</p> Signup and view all the answers

Which drive mechanism contributed the least to the primary recovery of the Ekofisk reservoir?

<p>Water drive (C)</p> Signup and view all the answers

What was the initial pressure of the Ekofisk reservoir?

<p>7135 psi (A)</p> Signup and view all the answers

What was the estimated final primary recovery factor of the Ekofisk reservoir?

<p>24% (A)</p> Signup and view all the answers

What was the primary recovery mechanism of the Ekofisk reservoir?

<p>Pressure depletion (A)</p> Signup and view all the answers

Which year did the Ekofisk field receive a production license extension?

<p>2022 (C)</p> Signup and view all the answers

What was the primary recovery mechanism of the Ekofisk reservoir?

<p>Pressure depletion (C)</p> Signup and view all the answers

What is the approximate value of 6 million m3 of oil in euros at $50/bbl?

<p>$2 billion (D)</p> Signup and view all the answers

Which phase of production in the Ekofisk reservoir is characterized by pressure depletion?

<p>Primary production phase (D)</p> Signup and view all the answers

What is the typical viscosity of Ekofisk oil?

<p>0.25 cp (C)</p> Signup and view all the answers

What was the recovery factor targeted in the development plan for the Ekofisk reservoir?

<p>20% (B)</p> Signup and view all the answers

Which drive mechanism contributed the most to the primary recovery of the Ekofisk reservoir?

<p>Pressure depletion (A)</p> Signup and view all the answers

What was the approximate increase in expected recovery from the water injector at Ekofisk?

<p>10% (C)</p> Signup and view all the answers

Which technique was used to monitor the Ekofisk reservoir over time?

<p>4D seismic (B)</p> Signup and view all the answers

What was the approximate decrease in porosity of the Ekofisk Chalk due to compaction?

<p>20% (C)</p> Signup and view all the answers

Which platform was added to the Ekofisk field in 1989?

<p>Ekofisk W (D)</p> Signup and view all the answers

What was the approximate value of 6 million m3 of oil in euros at $50/bbl?

<p>2 billion euro (D)</p> Signup and view all the answers

Which year did the Ekofisk field receive a production license extension?

<p>2022 (C)</p> Signup and view all the answers

Which of the following is NOT a drive mechanism for the Ekofisk reservoir?

<p>Water Drive (A)</p> Signup and view all the answers

What was the approximate decrease in porosity of the Ekofisk Chalk due to compaction?

<p>50-100 mD (D)</p> Signup and view all the answers

What was the estimated final primary recovery factor of the Ekofisk reservoir?

<p>20% (B)</p> Signup and view all the answers

Which drive mechanism contributed the most to the secondary recovery of the Ekofisk reservoir?

<p>Water drive (B)</p> Signup and view all the answers

What was the approximate increase in expected recovery from the water injector at Ekofisk?

<p>10% (D)</p> Signup and view all the answers

What was the approximate decrease in porosity of the Ekofisk Chalk due to compaction?

<p>20% (D)</p> Signup and view all the answers

What was the estimated final primary recovery factor of the Ekofisk reservoir?

<p>24% (B)</p> Signup and view all the answers

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