US4031014A
Expired / Lapsed
US
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Method of reducing friction loss
Assignee: Schlumberger Technology Corp
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Filing: 1976-06-22
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Granted: 1977-06-21
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Expires: 1996-06-22
Abstract
Abstract The reaction product of a hydroxy ether and a pentavalent phosphorous compound with a short chain and/or long chain alcohol can be employed to reduce friction loss of organic liquids flowing through a confining conduit by mixing the reaction product with the organic liquid in the presence of a basic multivalent metal salt activator.
Inventors
- 👤 Thomas J. Griffin, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:43
CPC Classifications
C; C09; C09K; C09K3/00; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/08; C09K8/00; C09K8/60; C09K8/62; C09K8/64; Y; Y10; Y10T; Y10T137/00; Y10T137/0318; Y10T137/0391
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
222 words
A method of reducing the friction loss generated by an organic liquid flowing through a confining conduit which comprises: mixing up to about 0.9 gallon per 1000 gallons of said organic liquid of an organic phosphate ester reaction product comprising the reaction of a pentavalent phosphorous compound with a hydroxy ether of the formula ROR 1 OH wherein R is a C 1 to C 6 alkyl group, R 1 is a C 2 or C 3 alkylene group and the total carbon atoms of R and R 1 range from 3 to about 8; and when the total carbon atoms of R and R 1 is 3 or 4, with a long chain monohydric aliphatic alcohol containing at least 5 carbon atoms; when the total carbon atoms of R and R 1 are five or more with an alcohol selected from the group consisting of a long chain monohydric aliphatic alcohol containing at least 5 carbon atoms, a short chain monohydric aliphatic alcohol containing from one to four carbon atoms or a mixture of said alcohols, said reaction being conducted at a temperature ranging from about 70 to about 90° C for a period of time of from about 1.5 to about 6 hours and a sufficient quantity of a basic salt containing a multivalent metal cation to provide friction reduction.
Claim 2
Independent Claim
222 words
A method of reducing the friction loss generated by an organic liquid flowing through a confining conduit which comprises: mixing up to about 0.9 gallon per 1000 gallons of said organic liquid of an organic phosphate ester reaction product comprising the reaction of a pentavalent phosphorous compound with a hydroxy ether of the formula ROR 1 OH wherein R is a C 1 to C 6 alkyl group, R 1 is a C 2 or C 3 alkylene group and the total carbon atoms of R and R 1 range from 3 to about 8; and when the total carbon atoms of R and R 1 is 3 or 4, with a long chain monohydric aliphatic alcohol containing at least 5 carbon atoms; when the total carbon atoms of R and R 1 are five or more with an alcohol selected from the group consisting of a long chain monohydric aliphatic alcohol containing at least 5 carbon atoms, a short chain monohydric aliphatic alcohol containing from one to four carbon atoms or a mixture of said alcohols, said reaction being conducted at a temperature ranging from about 70 to about 90° C for a period of time of from about 1.5 to about 6 hours and a sufficient quantity of a basic salt containing a multivalent metal cation to provide friction reduction.
Claim 3
Dependent Claim
17 words
The method of claim 1 wherein the short chain alcohol is a primary, straight chain, saturated alcohol.
Claim 4
Dependent Claim
16 words
The method of claim 1 wherein the pentavalent phosphorous compound is P 2 O 5 .
Claim 5
Dependent Claim
19 words
The method of claim 1 wherein the long chain monohydric alcohol contains from 5 to about 12 carbon atoms.
Claim 6
Dependent Claim
17 words
The method of claim 1 wherein the short chain alcohol is ethanol, methanol or a mixture thereof.
Claim 7
Dependent Claim
44 words
The method of claim 1 wherein the individual mole ratios of the hydroxy ether, the long chain alcohol and the short chain alcohol to the pentavalent phosphorous compound are within the ranges of 0.4:1 to 4.5:1; 0:1 to 4.0:1 and 0.5:1 to 5.0:1 respectively.
Claim 8
Dependent Claim
34 words
The method of claim 6 wherein the total mole ratio of the hydroxy ether, the long chain alcohol and the short chain alcohol to the pentavalent phosphorous compound ranges from about 2.8:1 to 7.0:1.
Claim 9
Dependent Claim
44 words
The method of claim 1 wherein the individual mole ratios of the hydroxy ether, the long chain alcohol and the short chain alcohol to the pentavalent phosphorous compound are within the ranges of 0.8:1 to 1.8:1; 0:1 to 1.4:1; and 0.9:1 to 2.0:1 respectively.
Claim 10
Dependent Claim
33 words
The method of claim 8 wherein the total mole ratio of the hydroxy ether, the long chain alcohol and the short chain alcohol to the pentavalent phosphorous compound is about 3.64 to 1.
Claim 11
Dependent Claim
37 words
The method of claim 1 wherein when the total carbon atoms of R and R 1 is 3 or 4 there is also reacted a short chain aliphatic monohydric alcohol containing from 1 to 4 carbon atoms.
Claim 12
Dependent Claim
14 words
The method of claim 10 wherein the short chain alcohol is methanol or ethanol.
Claim 13
Dependent Claim
12 words
The method of claim 10 wherein the short chain alcohol is methanol.
Claim 14
Dependent Claim
11 words
The method of claim 1 wherein the multivalent metal is aluminum.
Claim 15
Dependent Claim
12 words
The method of claim 1 wherein the basic salt is sodium aluminate.
Claim 16
Dependent Claim
12 words
The method of claim 1 wherein said confining conduit comprises a wellbore.
Claim 17
Independent Claim
263 words
A method of reducing the friction loss generated by an organic liquid flowing through a confining conduit which comprises mixing up to about 0.9 gallon per 1000 gallons of said organic liquid of an organic phosphate ester reaction product comprising the reaction of, P 2 o 5 with a hydroxy ether compound of the formula ROR 1 OH wherein R is a C 1 to C 6 alkyl group and R 1 is a C 2 or C 3 alkylene group and the total carbon atoms of R and R 1 ranges from 3 to about 8; and when the total carbon atoms of R and R 1 is 3 or 4 with a long chain aliphatic monohydric alcohol containing from 5 to about 12 carbon atoms, when the total carbon atoms of R and R 1 is 5 to 8, with an alcohol selected from the group consisting of a long chain monohydric aliphatic alcohol containing from 5 to about 12 carbon atoms, a short chain monohydric aliphatic alcohol containing from 1 to 4 carbon atoms or a mixture of said alcohols, the individual mole ratios of the hydroxy ether, the long chain alcohol and the short chain alcohol to P 2 O 5 are within the ranges of 0.4:1 to 4.5:1; 0:1 to 4.0:1 and 0.5:1 to 5.0:1 respectively, said reaction being conducted at a temperature ranging from about 70° to about 90° C for a period of time of from about 1.5 to about 6 hours, and a sufficient basic salt containing a multivalent metal cation to provide friction reduction.
Claim 18
Independent Claim
263 words
A method of reducing the friction loss generated by an organic liquid flowing through a confining conduit which comprises mixing up to about 0.9 gallon per 1000 gallons of said organic liquid of an organic phosphate ester reaction product comprising the reaction of, P 2 o 5 with a hydroxy ether compound of the formula ROR 1 OH wherein R is a C 1 to C 6 alkyl group and R 1 is a C 2 or C 3 alkylene group and the total carbon atoms of R and R 1 ranges from 3 to about 8; and when the total carbon atoms of R and R 1 is 3 or 4 with a long chain aliphatic monohydric alcohol containing from 5 to about 12 carbon atoms, when the total carbon atoms of R and R 1 is 5 to 8, with an alcohol selected from the group consisting of a long chain monohydric aliphatic alcohol containing from 5 to about 12 carbon atoms, a short chain monohydric aliphatic alcohol containing from 1 to 4 carbon atoms or a mixture of said alcohols, the individual mole ratios of the hydroxy ether, the long chain alcohol and the short chain alcohol to P 2 O 5 are within the ranges of 0.4:1 to 4.5:1; 0:1 to 4.0:1 and 0.5:1 to 5.0:1 respectively, said reaction being conducted at a temperature ranging from about 70° to about 90° C for a period of time of from about 1.5 to about 6 hours, and a sufficient basic salt containing a multivalent metal cation to provide friction reduction.
Claim 19
Dependent Claim
17 words
The method of claim 16 wherein the short chain alcohol is a primary, straight chain, saturated alcohol.
Claim 20
Dependent Claim
17 words
The method of claim 16 wherein the short chain alcohol is ethanol, methanol or a mixture thereof.
Claim 21
Dependent Claim
44 words
The method of claim 16 wherein the individual mole ratios of the hydroxy ether, the long chain alcohol and the short chain alcohol to P 2 O 5 are within the ranges of 0.8:1 to 1.8:1; 0:1 to 1.4:1; and 0.9:1 to 2.0:1 respectively.
Claim 22
Dependent Claim
35 words
The method of claim 19 wherein the total mole ratio of the hydroxy ether, the long chain alcohol and the short chain alcohol to P 2 O 5 ranges from about 2.8:1 to about 7.0:1.
Claim 23
Dependent Claim
12 words
The method of claim 16 wherein the short chain alcohol is methanol.
Claim 24
Dependent Claim
33 words
The method of claim 16 wherein the total mole ratio of the hydroxy ether, the long chain alcohol and the short chain alcohol to P 2 O 5 is about 3.64 to 1.
Claim 25
Dependent Claim
29 words
The method of claim 16 wherein the reaction temperature ranges from about 80° to about 90° C and the reaction time ranges from about 1.5 to about 3 hours.
Claim 26
Dependent Claim
25 words
The method of claim 16 wherein when the total carbon atoms of R 1 is 3 or 4 there is also reacted methanol or ethanol.
Claim 27
Dependent Claim
12 words
The method of claim 16 wherein the multivalent metal cation is aluminum.
Claim 28
Dependent Claim
12 words
The method of claim 16 wherein the basic salt is sodium aluminate.
Claim 29
Dependent Claim
12 words
The method of claim 16 wherein the confining conduit is a wellbore.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-06-20 | 1980-12-20 | 1981-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-06-20 | 1984-12-20 | 1985-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-06-20 | 1988-12-20 | 1989-06-21 | $7700.00 | Window Closed / Lapsed |