Method of removing paraffin from a well with heated solvent
Patent
·
OSTI ID:5267749
A method of removing paraffin deposits from a producing well includes injecting a heated xylene bottoms solvent into the well bore at a temperature sufficiently high so that the solvent is at least 150/sup 0/F when it encounters the producing formation. The well is then pumped to remove the solvent and dissolved paraffin. The solvent includes reformed aliphatic aromatic hydrocarbons and a stabilizing catalyst additive which functions to accelerate the dissolving of paraffin deposits and to increase the capacity of the solvent to retain the paraffin in solution when the solvent is cooled to the temperature of the producing formation. (8 claims)
- Assignee:
- Midwest Chem. Process. Co., Inc.; Skelly Oil Co.
- Patent Number(s):
- US 3437146
- OSTI ID:
- 5267749
- Country of Publication:
- United States
- Language:
- English
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