Patent US4374737A successfully refreshed from Google Patents.
US4374737A
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Nonpolluting drilling fluid composition
Assignee: GLOBAL CHEMICALS Inc
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Filing: 1981-07-24
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Granted: 1983-02-22
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Expires: 2001-07-24
Abstract
Abstract Disclosed is a nonpolluting drilling fluid composition. The composition mixture consisting essentially of a concentrate and any nonpolluting oil. The concentrate consists essentially of diethanolamide, a fatty acid, and a imidazoline/amide mixture.
Inventors
- 👤 Dana E. Larson
- 👤 Ronnie J. Mouton
- 👤 Chris J. Mocek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:17
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/02; C09K8/32; C09K8/03; C09K8/035; C09K8/36; F; F02; F02B; F02B3/00; F02B3/06; Y; Y10; Y10S; Y10S507/00; Y10S507/905
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
33 words
A composition for use as a drilling mud when mixed with water which consists essentially of: a concentrate consisting essentially of: 12.5% to 42.5% by weight of diethanolamide, which consists essentially of ##STR5##
Claim 2
Dependent Claim
33 words
A composition for use as a drilling mud when mixed with water which consists essentially of: a concentrate consisting essentially of: 12.5% to 42.5% by weight of diethanolamide, which consists essentially of ##STR5##
Claim 3
Dependent Claim
88 words
0% to 70.0% by weight of a tall oil fatty acid, which consists essentially of ##STR6## and 2.5% to 32.5% by weight of imidazoline/amide mixture, which consists essentially of ##STR7## wherein R is primarily unsaturated straight chain hydrocarbon groups having 17 carbon atoms and is the hydrocarbon residue remaining after removal of the carboxyl group from tall oil fatty acids and a bidodegradable, non-polluting oil, wherein the concentrate constitutes a minor amount of the composition sufficient to act as an emulsifier when the composition is added to water.
Claim 4
Dependent Claim
88 words
0% to 70.0% by weight of a tall oil fatty acid, which consists essentially of ##STR6## and 2.5% to 32.5% by weight of imidazoline/amide mixture, which consists essentially of ##STR7## wherein R is primarily unsaturated straight chain hydrocarbon groups having 17 carbon atoms and is the hydrocarbon residue remaining after removal of the carboxyl group from tall oil fatty acids and a bidodegradable, non-polluting oil, wherein the concentrate constitutes a minor amount of the composition sufficient to act as an emulsifier when the composition is added to water.
Claim 5
Dependent Claim
37 words
The composition as recited in claim 1, wherein: said biodegradable, nonpolluting oil is an oil selected from a group consisting of white mineral oil, peanut oil, soybean oil, cottonseed oil, corn oil, rice oil and safflower oil.
Claim 6
Dependent Claim
26 words
The composition as recited in claim 1, wherein: said biodegradable, nonpolluting oil is an oil selected from a group consisting of vegetable oil and mineral oil.
Claim 7
Dependent Claim
16 words
The composition as recited in claim 1, wherein: said concentrate constitutes about 3% of said composition.
Claim 8
Independent Claim
150 words
A method of producing an invert emulsion drilling fluid for use in the drilling of wells comprising mixing the following constituents: (a) substituted diethanolamide of the formula ##STR8## (b) tall oil fatty acid of the formula ##STR9## (c) imidazoline/amide components consisting essentially of: ##STR10## (d) a biodegradable, non-polluting oil; and (e) water to form an invert emulsion; wherein the constituents (a), (b) and (c) are present in the following by weight percentages relative to the total of constituents (a), (b) and (c), (a) 12.5 to 42.5% (b) 40 to 70% (c) 2.5 to 32.5% and wherein the constituents (a), (b) and (c) together are minor proportions of the total constituents (a), (b), (c) and (d) sufficient to act as an emulsifier; and wherein R is primarily unsaturated hydrocarbon groups having 17 carbon atoms and is the hydrocarbon residue remaining after removal of the carboxyl group from tall oil fatty acids.
Claim 9
Independent Claim
150 words
A method of producing an invert emulsion drilling fluid for use in the drilling of wells comprising mixing the following constituents: (a) substituted diethanolamide of the formula ##STR8## (b) tall oil fatty acid of the formula ##STR9## (c) imidazoline/amide components consisting essentially of: ##STR10## (d) a biodegradable, non-polluting oil; and (e) water to form an invert emulsion; wherein the constituents (a), (b) and (c) are present in the following by weight percentages relative to the total of constituents (a), (b) and (c), (a) 12.5 to 42.5% (b) 40 to 70% (c) 2.5 to 32.5% and wherein the constituents (a), (b) and (c) together are minor proportions of the total constituents (a), (b), (c) and (d) sufficient to act as an emulsifier; and wherein R is primarily unsaturated hydrocarbon groups having 17 carbon atoms and is the hydrocarbon residue remaining after removal of the carboxyl group from tall oil fatty acids.
Claim 10
Dependent Claim
46 words
A method of mixing a drilling fluid as set forth as recited in claim 5 wherein said biodegradable, nonpolluting oil is an oil selected from a group consisting of white mineral oil, peanut oil, soy bean oil, cottonseed oil, corn oil, rice oil and sunflower oil.
Claim 11
Dependent Claim
26 words
The composition as recited in claim 5 wherein said biodegradable, nonpollutting oil is an oil selected from a group consisting of vegetable oil and mineral oil.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-02-21 | 1986-08-23 | 1987-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-02-21 | 1990-08-23 | 1991-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-02-21 | 1994-08-23 | 1995-02-22 | $7700.00 | Window Closed / Lapsed |