Claims
- 1. Process of removing flow obstructing paraffin and paraffin-like deposits from oilfield equipment comprising flushing said equipment with a solvent mixture comprising an aromatic hydrocarbon selected from the group consisting of toluene, xylene, mesitylene and mixtures thereof and petroleum naphtha, the weight ratio of said aromatic hydrocarbon to naphtha being about 10/90 to about 90/10.
- 2. Process of claim 1 wherein the aromatic hydrocarbon is toluene.
- 3. Process of claim 1 wherein said solvent mixture contains a minor amount of a surfactant.
- 4. Process of claim 1 wherein the weight ratio of the aromatic hydrocarbon to naphtha being about 40/60 to about 60/40.
- 5. Process of claim 4 wherein the aromatic hydrocarbon is toluene.
- 6. Process of claim 4 wherein the aromatic hydrocarbon is xylene.
- 7. Process of claim 4 wherein the aromatic hydrocarbon is mesitylene.
- 8. Process of claim 4 wherein said solvent mixture contains a minor amount of a surfactant.
- 9. Process of claim 5 wherein the weight ratio of toluene to naphtha is about 50/50.
REFERENCE TO RELATED APPLICATIONS
The present application is a continuation-in-part application of U.S. Patent Application Ser. No. 107,898, filed 1987 Oct. 13, which is a continuation application of U.S. Patent Application Ser. No. 564,870, filed 1983 Dec. 23.
US Referenced Citations (2)
Number |
Name |
Date |
Kind |
3167514 |
Baker |
Jan 1965 |
|
3718586 |
Rollo et al. |
Feb 1973 |
|
Continuations (1)
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Number |
Date |
Country |
Parent |
564870 |
Dec 1983 |
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Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
107898 |
Oct 1987 |
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