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Rock Mechanics in Petroleum Geomechanics Quiz

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Rock Mechanics in Petroleum Geomechanics Quiz

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Questions and Answers

What does Petroleum Geomechanics deal with?

The chemical composition of rocks

The formation of hydrocarbons in rocks

The stress-strain-yield behavior of rocks (correct)

The temperature gradient of rocks

Why is knowledge of Rock Mechanics important for drilling, production, and reservoir engineers?

It assists in subsidence management

It is necessary for borehole stability (correct)

It helps in predicting the formation fracture pressure

It is crucial for sand management

What is the definition of fracture gradient according to the Schlumberger Oilfield Glossary?

The pressure required to measure fractures in the rock at a given depth

The pressure gradient required to induce fractures in the rock at a given depth (correct)

The pressure required to initiate fractures in the rock at a given depth

The pressure required to close fractures in the rock at a given depth

How does Rock Mechanics contribute to project planning in petroleum engineering?

It helps in casing placement programs Signup and view all the answers

What type of changes affect the stress-strain-yield behavior of rocks according to Petroleum Geomechanics?

Changes in temperature and fluid pressure Signup and view all the answers

How can knowledge of Rock Mechanics benefit oil and gas companies?

By bringing substantial economic rewards Signup and view all the answers

What is the fracture gradient of a well?

The maximum mud weight that a well can hold without mud losses and without uncontrolled tensile failures Signup and view all the answers

What is the purpose of performing a Formation Integrity Test (FIT) in drilling operations?

To estimate the formation fracture gradient Signup and view all the answers

What is the least principal stress within a rock structure called?

σv Signup and view all the answers

Which test is used to determine whether the rock in the open hole section of the well will withstand a specific, predetermined pressure?

Limit Test Signup and view all the answers

At what stage of the Formation Integrity Test (FIT) does the test stop if the pressure point where the slope is changing is reached?

At the leak off pressure (LOP) Signup and view all the answers

What determines the direction in which fractures will propagate within a rock structure?

The least principal stress within the rock structure Signup and view all the answers

In which test is it assumed that the formation is starting to break down when the pressure no longer increases linearly with an increase in volume pumped?

Leak-off test (LOT) Signup and view all the answers

Which test is used to determine the pressure at which the rock in the open hole section of the well just starts to break down?