Geophysics Methods: Petroleum Reservoirs Lecture

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Questions and Answers

What is the purpose of Bcp in the equation mentioned?

To keep the ∆t– relationship linear

For which type of rocks is Wyllie's equation reasonably valid?

Consolidated sandstones

According to Raymer et al. (1980), what relationship exists between velocity and porosity?

Velocity decreases with porosity increases

What does RHG stand for in the Raymer–Hunt–Gardner sonic porosity equation?

Raymer–Hunt–Gardner Signup and view all the answers

What is the value of the RHG constant in the sonic porosity equation?

0.4 Signup and view all the answers

What are the six elements that result in oil and gas accumulations?

Source Rock, Burial depth and temperature, Reservoir Rock, Migration pathways, Seal Rock, Trap Signup and view all the answers

How do three-dimensional (3D) seismic surveys assist in investigating petroleum reservoirs?

They help identify likely migration paths, infer trap formation timing and charge, and measure the geometry of closed structures. Signup and view all the answers

What is the role of rock physics in analyzing petroleum reservoirs?

Rock physics helps in analyzing reservoir quality, source rock, seals, and the capacity to contain hydrocarbons. Signup and view all the answers

How is porosity related to the supply of petroleum in rocks?

Porosity determines the supply of petroleum that can be contained in the rocks. Signup and view all the answers

What does the Wyllie Time Average equation relate seismic velocity to?

The Wyllie Time Average equation relates seismic velocity to porosity. Signup and view all the answers

Flashcards

What is Bcp's purpose?

Keeps the ∆t– relationship linear in an equation.

Rocks for Wyllie's equation?

Consolidated sandstones.