Patent CA1135644A successfully refreshed from Google Patents.
CA1135644A
Expired / Lapsed
CA
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Method of transporting viscous hydrocarbons
Assignee: ConocoPhillips Co
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Filing: 1980-03-19
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Granted: 1982-11-16
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Expires: 2000-03-19
Abstract
Abstract Case 6293 METHOD OF TRANSPORTING VISCOUS HYDROCARBONS Abstract of Disclosure An improvement in the method of transporting vis-cous hydrocarbons through pipes is disclosed. Briefly, the improvement comprises adding water containing an effective amount of certain substituted imidazoline amphoteric sur-factants to the hydrocarbon. The resulting oil-in-water emulsion has a much lower viscosity and is more easily transported.
Inventors
- 👤 Thomas R. Sifferman
Bibliographic Details
Application Number
—
Jurisdiction
CA
Data Source
google_patents
Last Synchronized
2026-11-09 04:44
CPC Classifications
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Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
128 words
THE EMBODIMENTS OF THE INVENTION IN WHICH AN EXCLUSIVE PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS: l. In the method of pumping a viscous hydrocarbon through a pipe the improvement which comprises forming an oil-in-water emulsion by adding to said hydrocarbon from about 10 to about 80 volume percent water containing an effective amount, in the range of about 400 to about 50,000 parts per million, by weight, based on said hydrocarbon, of a substituted imidazoline represented by the formula wherein R is an alkyl or alkylene group containing 8 to 18 carbon atoms, R' is M, H, or CH2COOM, wherein M is sodium or ammonium, R" is COOM or , wherein M is sodium, hydrogen or ammonium, and A is hydroxyl, chloride, sulfate or sulfonate.
Claim 2
Independent Claim
32 words
The method of claim l wherein, in the substituted imidazoline, R is an alkyl or alkylene group containing 10 to 16 carbon atoms, A is a hydroxyl group, and M is sodium.
Claim 3
Dependent Claim
20 words
The method of claim 2 wherein the amount of substituted imidazoline is about 600 to about 5,000 parts per million.
Claim 4
Dependent Claim
19 words
The method of claim 3 wherein the amount of water is from about 30 to about 60 volume percent.
Claim 5
Independent Claim
15 words
The method of claims 2, 3 and 4 wherein the hydro-carbon is a crude oil.
Claim 6
Dependent Claim
63 words
The method of claim 1 wherein: (a) the amount of water is about 50 volume percent, (b) the amount of imidazoline compound is about 800 parts per million, (c) the hydrocarbon is a crude oil, and (d) in the imidazoline (i) R is a C11H23 group, (ii) R' is Na, (iii) R" is a COONa group, and (iv) A is a hydroxy group.
Claim 7
Dependent Claim
65 words
The method of claim 1 wherein: (a) the amount of water is about 50 volume percent, (b) the amount of imidazoline compound is about 800 parts per million, (c) the hydrocarbon is a crude oil, and (d) in the imidazoline (i) R is a C11H23 group, (ii) R' is a CH2COONa group, (iii) R" is a COONa group, and (iv) A is a hydroxy group.
Claim 8
Dependent Claim
62 words
The method of claim 1 wherein: (a) the amount of water is about 50 volume percent, (b) the amount of imidazoline compound is about 800 parts per million, (c) the hydrocarbon is a crude oil, and (d) in the imidazoline (i) R is a C11H23 group, (ii) R' is hydrogen, (iii) R" is a group, and (iv) A is a hydroxy group.
References Cited (Backward Citations)
No citation records indexed.
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