US2803526A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Location of water-containing strata in well bores
Assignee: Union Oil Company of California
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Filing: 1954-12-03
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Granted: 1957-08-20
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Expires: 1974-12-03
Abstract
No abstract record available.
Inventors
- 👤 Theodore J Nowak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:03
CPC Classifications
E; E21; E21B; E21B47/00; E21B47/06; E21B47/07; E21B47/10; E21B47/103; E21B47/11
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
A METHOD FOR LOGGING WELL BORES TO DETERMINE THE LOCATION OF WATER-CONTAINING PERMEABLE STRATA PENETRATED BY SAID WELL BORE WHICH COMPRISES MEASURING THE VARI-ATION IN TEMPERATURE OF THE FLUID WITHIN THE WELL BORE AT LEAST THROUGHOUT THE PERMEABLE STRATA INTERVAL WHILE CONTINUING NORMAL FLUID FLOW BETWEEN SAID WELL BORE AND SAID STRATA, THEN TERMINATING SAID NORMAL FLUID FLOW, THEN INJECTING INTO EACH OF SAID PERMEABLE STRATA A FLUIDD OUT OF CONTACT WITH WELL BORE FLUIDS AND CONTAINING AN AGENT EXOTHERMALLY REACTIVE WITH WATER WHEREBY SAID AGENT MIXES AND REACTS IN SAID PERMEABLE STRATA WITH SAID WATER AND LIBERATES HEAT THERIN, AND REMEASURING THE VARIATION IN TEMPERATURE OF THE FLUID WITHIN SAID WELL BORE OPPOSITE SAID PERMEABLE STRATA THEREBY DETECTING THE PRESSENCE OF WATER-CONTAINING STRATA FROM TEMPERATURE ANOMALIES CONSISTING OF REGIONS OF ABNORMALLY HIGH TEMPERATURE OPPOSITE SAID PERMEABLE STRATA.
Claim 2
Independent Claim
138 words
A METHOD FOR LOGGING WELL BORES TO DETERMINE THE LOCATION OF WATER-CONTAINING PERMEABLE STRATA PENETRATED BY SAID WELL BORE WHICH COMPRISES MEASURING THE VARI-ATION IN TEMPERATURE OF THE FLUID WITHIN THE WELL BORE AT LEAST THROUGHOUT THE PERMEABLE STRATA INTERVAL WHILE CONTINUING NORMAL FLUID FLOW BETWEEN SAID WELL BORE AND SAID STRATA, THEN TERMINATING SAID NORMAL FLUID FLOW, THEN INJECTING INTO EACH OF SAID PERMEABLE STRATA A FLUIDD OUT OF CONTACT WITH WELL BORE FLUIDS AND CONTAINING AN AGENT EXOTHERMALLY REACTIVE WITH WATER WHEREBY SAID AGENT MIXES AND REACTS IN SAID PERMEABLE STRATA WITH SAID WATER AND LIBERATES HEAT THERIN, AND REMEASURING THE VARIATION IN TEMPERATURE OF THE FLUID WITHIN SAID WELL BORE OPPOSITE SAID PERMEABLE STRATA THEREBY DETECTING THE PRESSENCE OF WATER-CONTAINING STRATA FROM TEMPERATURE ANOMALIES CONSISTING OF REGIONS OF ABNORMALLY HIGH TEMPERATURE OPPOSITE SAID PERMEABLE STRATA.
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) | 1960-08-19 | 1961-02-18 | 1961-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-19 | 1965-02-18 | 1965-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-19 | 1969-02-18 | 1969-08-20 | $7700.00 | Window Closed / Lapsed |