Patent US3338095A successfully refreshed from Google Patents.
US3338095A
Expired / Lapsed
US
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Method for tracing the movement of fluid interfaces
Assignee: ExxonMobil Upstream Research Co
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Filing: 1964-08-19
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Granted: 1967-08-29
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Expires: 1984-08-19
Abstract
No abstract record available.
Inventors
- 👤 Carlton R Johnson
- 👤 Robert A Greenkorn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:58
CPC Classifications
E; E21; E21B; E21B47/00; E21B47/10; E21B49/00; E21B49/008
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
181 words
A METHOD FOR TRACING THE MOVEMENT OF A FLUID INTERFACE LOCATED BETWEEN TWO WELLS IN A POROUS SUBTERRANEAN RESERVOIR WHICH COMPRISES GENERATING A FIRST FLUID FLOW-RATE PULSE BY CHARGING THE VOLUME FLOW RATE AT ONE OF SAID WELLS, TIMING THE ARRIVAL OF A CORRESPONDING PRESSURE TRANSIENT AT THE OTHER OF SAID WELLS, MEASURING THE AMPLITUDE OF THE RESULTING PRESSURE TRANSIENT AT THE OTHER OF SAID WELLS, SUBSEQUENTLY GENERATING A SECOND FLUID FLOW-RATE PULSE BY CHANGING THE VOLUME FLOW RATE AT ONE OF SAID WELLS, TIMING THE ARRIVAL OF THE RESULTING PRESSURE TRANSIENT AT THE OTHER OF SAID WELLS, AND MEASURING THE AMPLITUDE OF THE SECOND PRESSURE TRANSIENT AT THE OTHER OF SAID WELLS, WHEREBY THE VISCOSITY AND COMPRESSIBILITY OF RESERVOIR FLUIDS AT THE TIME OF SAID FIRST MEASUREMENT OF PULSE VELOCITY AND AMPLITUDE, AND THE VISCOSITY AND COMPRESSIBILITY OF RESERVOIR FLUID AT THE TIME OF SAID SECOND MEASUREMENT OF PULSE VELOCITY AND AMPLITUDE MAY BE DETERMINED, ANY DIFFERENCE BETWEEN THE FIRST AND SECOND DETERMINATION OF RESERVOIR FLUID VISCOSITY AND COMPRESSIBLITY BEING A MEASURE OF CHANGE IN THE POSITION OF THE INTERFACE.
Claim 2
Independent Claim
181 words
A METHOD FOR TRACING THE MOVEMENT OF A FLUID INTERFACE LOCATED BETWEEN TWO WELLS IN A POROUS SUBTERRANEAN RESERVOIR WHICH COMPRISES GENERATING A FIRST FLUID FLOW-RATE PULSE BY CHARGING THE VOLUME FLOW RATE AT ONE OF SAID WELLS, TIMING THE ARRIVAL OF A CORRESPONDING PRESSURE TRANSIENT AT THE OTHER OF SAID WELLS, MEASURING THE AMPLITUDE OF THE RESULTING PRESSURE TRANSIENT AT THE OTHER OF SAID WELLS, SUBSEQUENTLY GENERATING A SECOND FLUID FLOW-RATE PULSE BY CHANGING THE VOLUME FLOW RATE AT ONE OF SAID WELLS, TIMING THE ARRIVAL OF THE RESULTING PRESSURE TRANSIENT AT THE OTHER OF SAID WELLS, AND MEASURING THE AMPLITUDE OF THE SECOND PRESSURE TRANSIENT AT THE OTHER OF SAID WELLS, WHEREBY THE VISCOSITY AND COMPRESSIBILITY OF RESERVOIR FLUIDS AT THE TIME OF SAID FIRST MEASUREMENT OF PULSE VELOCITY AND AMPLITUDE, AND THE VISCOSITY AND COMPRESSIBILITY OF RESERVOIR FLUID AT THE TIME OF SAID SECOND MEASUREMENT OF PULSE VELOCITY AND AMPLITUDE MAY BE DETERMINED, ANY DIFFERENCE BETWEEN THE FIRST AND SECOND DETERMINATION OF RESERVOIR FLUID VISCOSITY AND COMPRESSIBLITY BEING A MEASURE OF CHANGE IN THE POSITION OF THE INTERFACE.
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) | 1970-08-28 | 1971-02-27 | 1971-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-28 | 1975-02-27 | 1975-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-28 | 1979-02-27 | 1979-08-29 | $7700.00 | Window Closed / Lapsed |