Diverting Materials in Acidizing

Exercises Diverting Materials in Acidizing

1. Which of the following diverting agents should not be used with HF?

1. Oil-soluble resin
2. Salt (NaCl)
3. Benzoic acid
4. Wax beads

Solution

2. Salt (NaCl)

2. In treating a gravel packed oil well, which of the following diverting aids would be most applicable?

1. Ball sealers
2. Wax beads
3. Flaked benzoic acid
4. Finely ground oil-soluble resin

Solution

4. Finely ground oil-soluble resin

3. Which type of ball sealer is most effective in diverting low-rate, matrix acid treatments through perforations?

1. Standard weighted
2. Buoyant

Solution

2. Buoyant

4. Which diverting agent is best suited for bridging across perforations in fracture acidizing a high-temperature gas well?

1. Rock salt
2. Karaya gum
3. Graded benzoic acid
4. Graded naphthalene

Solution

3. Graded benzoic acid

5. What is a good alternative to the use of diverting materials?

1. Packer and bridge plug
2. Underbalanced perforating
3. Hydraulic fracturing
4. None of the above

Solution

1. Packer and bridge plug

Assessment Diverting Materials in Acidizing

1. You wish to acidize a perforated well that has been producing for 20 years. What do you use as a diverting agent?

A .Ball Sealers
B .Rock Salt ✔

2. It is only necessary to acidize the most productive sections of the producing formation.

A .True
B .False ✔

3. Gel type diverting agents can be permanent or temporary.

A .True ✔
B .False

4. What diverting agent do you use with an open-hole completed gas well?

A .Rock Salt
B .Ball Sealers
C .Benzoic Flakes ✔

5. What is the most common type of diverting agent?

A .Solid ✔
B .Liquid

Recommended for You 

Introduction to Acidizing

Additives in Acidizing Fluids

Matrix Acidizing

Fracture Acidizing

Hydraulic Fracturing Fundamentals

Production Logging of Multiphase Flow in Horizontal Wells