Q.1
As temperature increases, the acid spends faster on carbonates.
  • a) True
  • b) False
Q.2
What is the optimum pressure up to which there exists a sharp increase in HCl spending time on carbonate acidizing?
  • a) 100 psi
  • b) 200 psi
  • c) 400 psi
  • d) 500 psi
Q.3
As the concentration of HCl increases, the spending time on the formation decreases.
  • a) True
  • b) False
Q.4
At low and moderate temperatures, what is the reaction rate of dolomite as compared to limestone?
  • a) ratelimestone < 2.ratedolomite
  • b) ratelimestone > 3.ratedolomite
  • c) ratelimestone > 2.ratedolomite
  • d) ratelimestone < 2.ratedolomite
Q.5
Which of the following is incorrect regarding emulsified acids?
  • a) Used to increase the production rate
  • b) Mainly used in Sandstone reservoirs
  • c) Used to emulsify the aqueous acid with oil
  • d) Used in Matrix acidizing and Acid fracturing
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