US3835927A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of removing sulfur from fluids
Assignee: Baker Petrolite LLC
•
Filing: 1972-06-22
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Granted: 1974-09-17
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Expires: 1992-06-22
Abstract
Abstract A method of inhibiting, preventing, reducing, and/or reversing sulfur plugging which comprises treating sulfur-containing fluids in oil and gas wells, such as petroleum (and/or fluids containing a component which converts to sulfur), with a reactant compound capable of combining with sulfur to produce products which are soluble or dispersible in the sulfur-containing fluids. This process is illustrated by the use of olefins as the reactive compound, and more particularly by the use of an olefin capable of reacting with sulfur to form 1,2-dithiole-3-thiones.
Inventors
- 👤 B Alink
- 👤 R Annand
- 👤 D Redmore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:17
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/52; C09K8/528; C09K8/532
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
13 words
The process of claim 1 which comprises a squeeze treatment into the formation.
Claim 2
Dependent Claim
11 words
The process of claim 1 where said fluids are petroleum fluids.
Claim 3
Dependent Claim
11 words
The process of claim 2 where said fluids are petroleum fluids.
Claim 4
Dependent Claim
11 words
The process of claim 1 where said compound is an olefin.
Claim 5
Dependent Claim
11 words
The process of claim 2 where said compound is an olefin.
Claim 6
Dependent Claim
11 words
The process of claim 3 where said compound is an olefin.
Claim 7
Dependent Claim
11 words
The process of claim 4 where said compound is an olefin.
Claim 8
Dependent Claim
49 words
A process of inhibiting, reducing, preventing, and/or reversing sulfur-plugging in sulfur-containing fluids in oil wells or gas wells, said fluids containing a component which converts to sulfur, said process comprising adding to said fluids an organic compound capable of reaction with sulfur and reacting said compound with said sulfur.
Claim 9
Dependent Claim
13 words
The process of claim 9 which comprises a squeeze treatment into the formation.
Claim 10
Dependent Claim
11 words
The process of claim 9 where said compound is an olefin.
Claim 11
Dependent Claim
11 words
The process of claim 10 where said compound is an olefin.
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) | 1977-09-16 | 1978-03-18 | 1978-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-16 | 1982-03-18 | 1982-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-16 | 1986-03-18 | 1986-09-17 | $7700.00 | Window Closed / Lapsed |