CHAPTER 6

Question 1

THIS HAPPENS WHEN A FLOW
REVERSAL EXIST

Answer 1

HYSTERESIS

Question 2

THE CHANGE BETWEEN IMBIBITION
AND DRAINAGE

Answer 2

HYSTERESIS

Question 3

OCCURS DUE TO CHANGING
INJECTION PATTERNS, INFILL
DRILLING, AND SHUTTING THE WELL.

Answer 3

HYSTERESIS

Question 4

DEGREE TO WHICH FLUID
WETS SOLID SURFACE

Answer 4

WETTABILITY

Question 5

AN INCREASE IN
WETTING-PHASE

Answer 5

IMBIBITION PROCESS

Question 6

REDUCING SURFACE
TENSION

Answer 6

IMBIBITION PROCESS

Question 7

WATER FLOODING

Answer 7

IMBIBITION PROCESS

Question 8

DECREASE IN
WETTING-PHASE

Answer 8

DRAINAGE PROCESS

Question 9

BACK-PRODUCING AN
INJECTOR

Answer 9

DRAINAGE PROCESS

Question 10

EXIST ONLY
WHEN
DRAINAGE
OCCURS
FIRST

Answer 10

PRIMARY DRAINAGE CURVE

Question 11

EXIST WHEN DRAINAGE
OCCURS AFTER IMBIBITION

Answer 11

SECONDARY DRAINAGE CURVE

Question 12

HYSTERESIS EFFECT TO
SIMULATOR MAY LEAD TO:

Answer 12

USE OF SMALLER TIME STEPS

POOR MATERIAL BALANCES

Question 13

oil relative permeability
may not be affected by water relative
permeability since it usually has a negligible
effect.

Answer 13

water-wet systems

Question 14

water relative permeability
may have a significant effect.

Answer 14

oil-wet systems

Question 15

all
bets are off, meaning not one, both or none of the
relative permeability curves may be affected.

Answer 15

intermediate/mixed wettability systems

Question 16

Weighting of relative
permeability

Answer 16

MOBILITY WEIGHTING

Question 17

Is a technique of deciding
which relative permeability
values to use to determine
flow in to a block

Answer 17

MOBILITY WEIGHTING

Question 18

VARIATIONS FROM NORM

Answer 18

PSUEDOFUNCTIONS

Question 19

RELATIVE PERMEABILITIES AND
CAPILLARY PRESSURES** DETERMINED
FROM CROSS-SECTIONAL
SIMULATORS

Answer 19

DYNAMIC PSUEDOFUNCTIONS

Question 20

ACCOUNTS FOR THE DEGREE OF SEPARATION
OF FLUIDS IN A CELL.

Answer 20

VERTICAL EQUILIBRIUM