US3115602A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous mud resistivity measuring device with electricity conductive current confining means
Assignee: ConocoPhillips Co
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Filing: 1960-02-01
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Granted: 1963-12-24
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Expires: 1980-02-01
Abstract
No abstract record available.
Inventors
- 👤 Earl W Sutton
- 👤 James C Albright
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:22
CPC Classifications
G; G01; G01V; G01V3/00; G01V3/18; G01V3/20; G01V3/24; E; E21; E21B; E21B49/00; E21B49/005; G01N; G01N27/00; G01N27/02; G01N27/04; G01N27/06; G01N27/07
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
AN APPARATUS FOR MEASURING THE RESISTIVITY OF THE FLUID WITHIN A GENERALLY VERTICAL WELL BORE, THE APPARATUS COMPRISING: AN ELECTRICALLY NONCONDUCTIVE PLATE MEMBER; A PLURALITY OF ELECTRODES MOUNTED AT SPACED INTERVALS ON THE PLATE MEMBER; ELECTRICALLY CONDUCTIVE SUPPORT MEANS CONNECTED TO THE NONCONDUCTIVE PLATE MEMBER FOR CONFINING THE PLATE MEMBER TO A PLANE SUBSTANTIALLY PERPENDICULAR TO THE AXIS OF THE WELL BORE; ELECTRICALLY CONDUCTIVE CONFINING MEANS HAVING AT LEAST ONE APERTURE THEREIN FOR PASSING FLUID INTO CONTACT WITH THE ELECTRODES MECHANICALLY AND ELECTRICALLY CONNECTED TO THE SUPPORT MEANS AND EXTENDING BELOW THE NONCONDUCTIVE PLATE MEMBER FOR SUBSTANTIALLY CONFINING ELECTRIC CURRENT TO THE FLUID WITHIN THE CONFINING MEANS; ELECTRICAL CURRENT GENERATING MEANS OPERATIVELY CONNECTED TO A FIRST GROUP OF THE ELECTRODES; AND, ELECTRICAL CURRENT INDICATING MEANS OPERATIVELY CONNECTED TO A SECOND GROUP OF THE ELECTRODES AND TO THE SUPPORT MEANS.
Claim 2
Independent Claim
139 words
AN APPARATUS FOR MEASURING THE RESISTIVITY OF THE FLUID WITHIN A GENERALLY VERTICAL WELL BORE, THE APPARATUS COMPRISING: AN ELECTRICALLY NONCONDUCTIVE PLATE MEMBER; A PLURALITY OF ELECTRODES MOUNTED AT SPACED INTERVALS ON THE PLATE MEMBER; ELECTRICALLY CONDUCTIVE SUPPORT MEANS CONNECTED TO THE NONCONDUCTIVE PLATE MEMBER FOR CONFINING THE PLATE MEMBER TO A PLANE SUBSTANTIALLY PERPENDICULAR TO THE AXIS OF THE WELL BORE; ELECTRICALLY CONDUCTIVE CONFINING MEANS HAVING AT LEAST ONE APERTURE THEREIN FOR PASSING FLUID INTO CONTACT WITH THE ELECTRODES MECHANICALLY AND ELECTRICALLY CONNECTED TO THE SUPPORT MEANS AND EXTENDING BELOW THE NONCONDUCTIVE PLATE MEMBER FOR SUBSTANTIALLY CONFINING ELECTRIC CURRENT TO THE FLUID WITHIN THE CONFINING MEANS; ELECTRICAL CURRENT GENERATING MEANS OPERATIVELY CONNECTED TO A FIRST GROUP OF THE ELECTRODES; AND, ELECTRICAL CURRENT INDICATING MEANS OPERATIVELY CONNECTED TO A SECOND GROUP OF THE ELECTRODES AND TO THE SUPPORT MEANS.
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) | 1966-12-23 | 1967-06-24 | 1967-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-23 | 1971-06-24 | 1971-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-23 | 1975-06-24 | 1975-12-24 | $7700.00 | Window Closed / Lapsed |