US3605501A
Expired / Lapsed
US
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Method for determining clay reactivity
Assignee: ExxonMobil Upstream Research Co
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Filing: 1970-03-16
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Granted: 1971-09-20
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Expires: 1990-03-16
Abstract
Abstract THE CAPACITY OF A DEHYDRATED DRILLING FLUID SAMPLE TO ADSORB WATER UNDER A FIXED HUMIDITY ENVIRONMENT IS DETERMINED AND COMPARED TO THE CAPACITY OF A DEHYDRATED STANDARD MATERIAL TO ADSORB WATER UNDER THE SAME ENVIRON- MENT. THE RATIO EXPRESSES THE REACTIVITY OF THE CLAY AS RELATED TO THE STANDARD MATERIAL.
Inventors
- 👤 Martin E Chenevert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:45
CPC Classifications
G; G01; G01N; G01N15/00; G01N15/08; G01N15/088; G01N15/0893
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-19 | 1975-03-21 | 1975-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-19 | 1979-03-21 | 1979-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-19 | 1983-03-21 | 1983-09-20 | $7700.00 | Window Closed / Lapsed |