Buffer-regulated carbonate acidization
Patent
·
OSTI ID:6750721
The rate of acidizing a material, such as a carbonate reservoir, is reduced by treating it with an aqueous solution that contains enough weak acid to react with a significant amount of the material and enough weak acid salt to provide a weak acid to weak salt ratio that maintains the concentration of ionized weak acid at a relatively low level at which its rate of reaction is relatively low. (8 claims)
- Assignee:
- Shell Oil Co
- Patent Number(s):
- US 3885630
- OSTI ID:
- 6750721
- Country of Publication:
- United States
- Language:
- English
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