Treatment of wells
Patent
·
OSTI ID:6284188
While the principal of the invention is to provide an improved method of treating calcareous or similar deposits, another object is to provide an improved well treating composition which is effectively retarded in its reaction with the formation. This allows it to penetrate the formation more deeply before the acid is neutralized. Still another object of the invention is an improved method of preparing a relatively stable oil-and-acid emulsion including corrosion inhibitors and acid-retarding agents. The improved acidizing emulsion includes 4 major components (based on the volume of the acid): (1) An aqueous solution of mineral acid (generally hydrochloric) capable of reacting with the formation to produce water-soluble salts; (2) 0.1 - 1.5% of a water-soluble, organic surface-active agent and acid retarder; (3) 0.1 - 3.0% of a surface-active, corrosion-inhibiting agent; and (3) hydrocarbon oil-- 5-25%. (5 claims)
- Assignee:
- Bryon Jackson Inc.
- Patent Number(s):
- US 3353603
- OSTI ID:
- 6284188
- Country of Publication:
- United States
- Language:
- English
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