Concept of Permeability (2.1)

Question 1

It traps hydrocarbons in the
reservoir. Cap rock may be
porous, but the pore channels
must be ”closed” to stop fluids
from escaping.

Answer 1

Impermeable rock (cap rock)

Question 2

It is a measure of how easily a fluids may flow through
the pore channels in a rock. It depends on the size, shape, and number of the
pore channels in the porous medium.

Answer 2

permeability of a rock

Question 3

easy to flow

Answer 3

high permeability

Question 4

difficult to flow

Answer 4

low permeability

Question 5

•It is the ability of a fluid to flow or to transmit through a rock when a
single fluid is present.
•independent of the fluid type.
•only depends on the geometry of the pore-channel
syste

Answer 5

Absolute permeability

Question 6

A measure of the capacity of the porous medium to transmit
fluids.

Answer 6

API Code 27

Question 7

•is the permeability of a fluid if more than one fluid is present, but
one fluid is flowing.
•Each fluid will mutually reduce the pore channels open to flow for the othe

Answer 7

Effective permeability

Question 8

•is the ratio of effective permeability of a particular fluid to its
absolute permeability (more than one fluid is flowing).
•The ___ of a fluid is a function of its saturation.

Answer 8

Relative permeability

Question 9

His law is a foundation stone for several
fields of study including ground-water
hydrology, soil physics, and petroleum
engineering.

The ”discoverer” of Darcy’s Low, 1856.

Answer 9

Henry Darcy (1803-1858), Hydraulic
Engineer.

Question 10

Permeability has the units of

Answer 10

ft², cm², m²

Question 11

1 Darcy is equivalent to

Answer 11

9.869233 × 10^-13 m²