Patent US2842205A successfully refreshed from Google Patents.
US2842205A
Expired / Lapsed
US
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Method of servicing wells
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1956-12-24
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Granted: 1958-07-08
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Expires: 1976-12-24
Abstract
No abstract record available.
Inventors
- 👤 Thomas O Allen
- 👤 Laurie M Sloan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:41
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/10; E21B33/13; E21B33/14; E21B33/138; Y; Y10; Y10S; Y10S507/00; Y10S507/925
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
191 words
A METHOD FOR SEALING A CHANNEL IN A WELL BACK OF A WELL CASING IN WHICH THE CHANNEL COMMUNICATED FLUIDLY WITH VERTICALLY SPACED APART ZONES AND FLUID FROM A FIRST OF SAID ZONES IS INVADING A SECOND OF SAID ZONES AND IN WHICH THE CHANNEL ALSO COMMUNICATESZ FLUIDLY WITH LESS THAN ALL OF THE PLURALITY OF FIRST PERFORATIOPNS IN SAID CASING IN SAID FIRST ZONE WHICH COMPRISES ESTABLISHING FLUID COMMUNICATION BETWEEN SAID CHANNEL AND LESS THAN ALL OF A PLURALITY OF SECOND PERFORATIONS IN SAID CASING IN SAID SECOND ZONE VERTICALLY SPACED APART FROM THE FIRST PERFORATIONS, FORCING A LOW FLUID LOSS NON-PLUGGING FLUID THROUGH SAID CHANNEL THROUGH SAID PERFORATIONS IN FLUID COMMUNICATION WITH SAID CHANNEL, THEN FORCING A SEALING MATERIAL THROUGH SAID CHANNEL AFTER SAID FLUID, AND MAINTAINING SAID SEALING MATERIAL IN SAID CHANNEL AND SAID PERFORATIONS IN FLUID COMMUNICATION WITH SAID CHANNEL A SUFFICIENT LENGTH OF TIME FOR IT TO SEAL SAID CHANNEL AND SAID PERFORATIONS IN COMMUNICATION WITH SAID CHANNEL, SAID LOW FLUID LOSS NON-PLUGGING FLUID HAVING THE CHARACTERISTICS OF RESISTING ENTRANCE OF OTHER FLUIDS INTO THE PERFORATIONS OTHER THAN THE PERFORATIONS IN FLUID COMMUNICATION WITH THE CHANNEL.
Claim 2
Independent Claim
191 words
A METHOD FOR SEALING A CHANNEL IN A WELL BACK OF A WELL CASING IN WHICH THE CHANNEL COMMUNICATED FLUIDLY WITH VERTICALLY SPACED APART ZONES AND FLUID FROM A FIRST OF SAID ZONES IS INVADING A SECOND OF SAID ZONES AND IN WHICH THE CHANNEL ALSO COMMUNICATESZ FLUIDLY WITH LESS THAN ALL OF THE PLURALITY OF FIRST PERFORATIOPNS IN SAID CASING IN SAID FIRST ZONE WHICH COMPRISES ESTABLISHING FLUID COMMUNICATION BETWEEN SAID CHANNEL AND LESS THAN ALL OF A PLURALITY OF SECOND PERFORATIONS IN SAID CASING IN SAID SECOND ZONE VERTICALLY SPACED APART FROM THE FIRST PERFORATIONS, FORCING A LOW FLUID LOSS NON-PLUGGING FLUID THROUGH SAID CHANNEL THROUGH SAID PERFORATIONS IN FLUID COMMUNICATION WITH SAID CHANNEL, THEN FORCING A SEALING MATERIAL THROUGH SAID CHANNEL AFTER SAID FLUID, AND MAINTAINING SAID SEALING MATERIAL IN SAID CHANNEL AND SAID PERFORATIONS IN FLUID COMMUNICATION WITH SAID CHANNEL A SUFFICIENT LENGTH OF TIME FOR IT TO SEAL SAID CHANNEL AND SAID PERFORATIONS IN COMMUNICATION WITH SAID CHANNEL, SAID LOW FLUID LOSS NON-PLUGGING FLUID HAVING THE CHARACTERISTICS OF RESISTING ENTRANCE OF OTHER FLUIDS INTO THE PERFORATIONS OTHER THAN THE PERFORATIONS IN FLUID COMMUNICATION WITH THE CHANNEL.
References Cited (Backward Citations)
US2223397A
Cited
US2718264A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-07 | 1962-01-06 | 1962-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-07 | 1966-01-06 | 1966-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-07 | 1970-01-06 | 1970-07-08 | $7700.00 | Window Closed / Lapsed |