CA1067685A
Expired / Lapsed
CA
⏱️ 0.0 years remaining
Methods of removing organic deposits from surfaces
Assignee: Halliburton Co
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Filing: 1975-08-06
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Granted: 1979-12-11
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Expires: 1995-08-06
Abstract
Abstract Abstract of the Disclosure Method of removing organic deposits from ? ?ipment and subterranean formation surfaces are provided. The deposits are contacted with a mixture of a hydrocarbon solvent and an alkylated aryl polyether alcohol surfactant dispersed in an aqueous carrier liquid.
Inventors
- 👤 Gary D. Sutton
Bibliographic Details
Application Number
—
Jurisdiction
CA
Data Source
google_patents
Last Synchronized
2026-11-05 10:31
CPC Classifications
—
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
102 words
A method of removing organic deposits from surfaces comprising: contacting said surfaces for a period of time sufficient to remove said deposits with a hydrocarbon-surfactant mixture dispersed in an aqueous carrier liquid, said hydrocarbon-surfactant mixture being present in said aqueous dispersion in an amount in the range of from about 1% to about 20% by weight of said dispersion; said hydrocarbon being selected from the group consisting of toluene, xylene, aromatic naphtha and kerosene, and said surfactant being an alkylated aryl polyether alcohol having the general formula: wherein R has a value in the range of from about 20 to about 35.
Claim 2
Independent Claim
102 words
A method of removing organic deposits from surfaces comprising: contacting said surfaces for a period of time sufficient to remove said deposits with a hydrocarbon-surfactant mixture dispersed in an aqueous carrier liquid, said hydrocarbon-surfactant mixture being present in said aqueous dispersion in an amount in the range of from about 1% to about 20% by weight of said dispersion; said hydrocarbon being selected from the group consisting of toluene, xylene, aromatic naphtha and kerosene, and said surfactant being an alkylated aryl polyether alcohol having the general formula: wherein R has a value in the range of from about 20 to about 35.
Claim 3
Dependent Claim
32 words
The method of claim 1, wherein said surfactant is present in said hydrocarbon-surfactant mixture in an amount in the range of from about 1% to about 75% by weight of said mixture.
Claim 4
Dependent Claim
32 words
The method of claim 1, wherein said surfactant is present in said hydrocarbon-surfactant mixture in an amount in the range of from about 5% to about 25% by weight of said mixture.
Claim 5
Dependent Claim
32 words
The method of claim 1, wherein said surfactant is present in said hydrocarbon-surfactant mixture in an amount in the range of from about 10% to about 15% by weight of said mixture.
Claim 6
Dependent Claim
10 words
The method of claim 1, wherein said hydrocarbon is toluene.
Claim 7
Dependent Claim
13 words
The method of claim 2, 3 or 4, wherein said hydro-carbon is toluene.
Claim 8
Dependent Claim
32 words
The method of claim 5, wherein the toluene-surfactant mixture is present in said dispersion in an amount in the range of from about 2% to about 10% by weight of said dispersion.
Claim 9
Independent Claim
118 words
A method of removing organic deposits from surfaces comprises: contacting said surfaces for a period of time sufficient to remove said deposits with hydrocarbon-surfactant mixture dispersed in an aqueous carrier liquid, said hydrocarbon-surfactant mixture being present in said aqueous dispersion in an amount in the range of from about 1% to about 20% by weight of said dispersion; said hydrocarbon being selected from the group consisting of toluene, xylene, aromatic naphtha and kerosene, and said surfactant being an alkylated aryl polyether alcohol present in said hydrocarbon-surfactant mixture in an amount of about 12.2% by weight of said mixutre and having the general formula: wherein R has a value in the range of from about 20 to about 35.
Claim 10
Independent Claim
118 words
A method of removing organic deposits from surfaces comprises: contacting said surfaces for a period of time sufficient to remove said deposits with hydrocarbon-surfactant mixture dispersed in an aqueous carrier liquid, said hydrocarbon-surfactant mixture being present in said aqueous dispersion in an amount in the range of from about 1% to about 20% by weight of said dispersion; said hydrocarbon being selected from the group consisting of toluene, xylene, aromatic naphtha and kerosene, and said surfactant being an alkylated aryl polyether alcohol present in said hydrocarbon-surfactant mixture in an amount of about 12.2% by weight of said mixutre and having the general formula: wherein R has a value in the range of from about 20 to about 35.
Claim 11
Dependent Claim
10 words
The method of claim 8, wherein said hydrocarbon is toluene.
Claim 12
Independent Claim
171 words
A method of removing organic material deposits from the surfaces of a subterranean formation penetrated by a well bore comprising the steps of: introducing an aqueous dispersion of a hydrocarbon-surfactant mixture into said well bore and into said formation whereby said surfaces of said formation are contacted by said dispersion for a period of time sufficient to remove said deposits, said hydrocarbon-surfactant mixture being present in said aqueous dispersion in an amount in the range of from about 1% to about 20% by weight of said dispersion, said hydrocarbon being selected from the group consisting of toluene, xylene, aromatic naphtha and kerosene, and said surfactant being an alkylated aryl polyether alcohol present in said hydrocarbon-surfactant mixture in an amount in the range of from about 1% to about 75% by weight of said mixture and having the general formula: wherein R has a value in the range of from about 20 to about 35; and producing said aqueous dispersion containing said removed organic material from said formation and said well bore.
Claim 13
Independent Claim
171 words
A method of removing organic material deposits from the surfaces of a subterranean formation penetrated by a well bore comprising the steps of: introducing an aqueous dispersion of a hydrocarbon-surfactant mixture into said well bore and into said formation whereby said surfaces of said formation are contacted by said dispersion for a period of time sufficient to remove said deposits, said hydrocarbon-surfactant mixture being present in said aqueous dispersion in an amount in the range of from about 1% to about 20% by weight of said dispersion, said hydrocarbon being selected from the group consisting of toluene, xylene, aromatic naphtha and kerosene, and said surfactant being an alkylated aryl polyether alcohol present in said hydrocarbon-surfactant mixture in an amount in the range of from about 1% to about 75% by weight of said mixture and having the general formula: wherein R has a value in the range of from about 20 to about 35; and producing said aqueous dispersion containing said removed organic material from said formation and said well bore.
Claim 14
Dependent Claim
10 words
The method of claim 10, wherein said hydrocarbon is toluene.
Claim 15
Dependent Claim
30 words
The method of claim 10, wherein said hydrocarbon is toluene and said surfactant is present in the toluene-surfactant mixture in an amount of about 12.2% by weight of said mixture.
Claim 16
Dependent Claim
32 words
The method of claim 12, wherein said toluene-surfactant mixture is present in said dispersion in an amount in the range of from about 2% to about 10% by weight of said dispersion.
Claim 17
Independent Claim
153 words
A method of removing organic material deposits from the surfaces of tubular goods disposed in a well bore comprising the steps of: pumping a hydrocarbon-surfactant mixture dispersed in an aqueous carrier liquid through said tubular goods for a period of time sufficient to remove said deposits, said hydrocarbon-surfactant mixture being present in said aqueous dispersion in an amount in the range of from about 1% to about 20% by weight of said dispersion, said hydrocarbon being selected from the group consisting of toluene, xylene, aromatic naphtha and kerosene, and said surfactant being an alkylated aryl polyether alcohol present in said hydrocarbon-surfactant mixture in an amount in the range of from about 1% to about 75% by weight of said mixture and having the general formula: wherein R has a value in the range of from about 20 to about 35; and withdrawing said dispersion containing said removed organic material from said tubular goods.
Claim 18
Independent Claim
153 words
A method of removing organic material deposits from the surfaces of tubular goods disposed in a well bore comprising the steps of: pumping a hydrocarbon-surfactant mixture dispersed in an aqueous carrier liquid through said tubular goods for a period of time sufficient to remove said deposits, said hydrocarbon-surfactant mixture being present in said aqueous dispersion in an amount in the range of from about 1% to about 20% by weight of said dispersion, said hydrocarbon being selected from the group consisting of toluene, xylene, aromatic naphtha and kerosene, and said surfactant being an alkylated aryl polyether alcohol present in said hydrocarbon-surfactant mixture in an amount in the range of from about 1% to about 75% by weight of said mixture and having the general formula: wherein R has a value in the range of from about 20 to about 35; and withdrawing said dispersion containing said removed organic material from said tubular goods.
Claim 19
Dependent Claim
12 words
The method of claim 14, wherein said aqueous carrier liquid is brine.
Claim 20
Dependent Claim
12 words
The method of claim 14 or 15, wherein said hydro-carbon is toluene.
Claim 21
Dependent Claim
30 words
The method of claim 14, wherein said hydrocarbon is toluene and said surfactant is present in the toluene-surfactant mixture in an amount of about 12.2% by weight of said mixture.
Claim 22
Dependent Claim
32 words
The method of claim 17, wherein said toluene-surfactant mixture is present in said dispersion in an amount in the range of from about 2% to about 10% by weight of said dispersion.
References Cited (Backward Citations)
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