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Question 1

What is the terminology of type of pressure caused by the formation above the production zone?

Answer 1

Overburden pressure

Question 2

In Enhanced Oil Recovery, for reservoir which contains very viscous crude oil, the type of EOR should be used is______________

Answer 2

Steam Flood

Question 3

Gas lift is used to?

Answer 3

Lowered Pwf by lowering the density of the oil, to increase production from the well off, to create a high gas pressure at the surface

Question 4

Common procedures performed to close the bottom of the production zone, so there is no inter-zone process is called :

Answer 4

Plugging back

Question 5

Mention three classes of surfactant based on ionic charateristic?

Answer 5

anionic surfactant ; nonionic surfactant ; kationic surfactant; amphoteric surfactant

Question 6

Mention 2 factors affecting on well drillstring design, related on drillpipe properties

Answer 6

Class, Grade, and Pounder of drillpipes

Question 7

Mention the result of reaction between hydrofluoric acid with carbornate!

Answer 7

2HF + CaCO3  CaF2 +CO2 + H20, (CaF2 = Calcium Flouride)

Question 8

Mention three factors that are used in material balance calculations!

Answer 8

Water influx, produced water, gas expansion

Question 9

Mention 3 types of petrophysical properties!

Answer 9

Porosity, saturation, permeability

Question 10

What are the advantages of MWD?

Answer 10

to measure drilling properties at the real time (during drilling operation)