Patent US3259190A successfully refreshed from Google Patents.
US3259190A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of improving fluid flow in wells
Assignee: Chevron USA Inc
•
Filing: 1961-03-30
•
Granted: 1966-07-05
•
Expires: 1981-03-30
Abstract
No abstract record available.
Inventors
- 👤 Richard L Parsons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:48
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/25; E21B43/26; E21B43/267
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
A METHOD OF INCREASING FLUID FLOW FROM A FORMATION HAVING AT LEAST ONE FRACTURE CREATED THEREIN AND PENETRATED BY A WELL COMPRISING DETERMINING THE TEMPERATURE OF SAID FORMATION, SLECTING A MATERIAL FUSIBLE AT LESS THAN SAID TEMPERATURE, PARTICULATING SAID MATERIAL, SEGREGATING A PREDETERMINED SIZE RANGE OF SAID MTERIAL, COMBINING SAID MATERIAL IN A PREDETERMINED RATIO WITH PRESELECTED PROPPING AGENTS TO FORM A MIXTURE OF SAID MATERIAL AND SAID PROPPING AGENTS, SUSPENDING SAID MIXTURE IN A LIQUID, FORCING SAID LIQUID CONTAINING SAID MIXTURE INTO SAID FRACTURE WHILE MAINTAINING THE CONPETENCY OF SAID FUSIBLE MATERIAL AND REMOVING THE SAID FUSIBLE MATERIAL FROM SAID FRACTURE WITHOUT THE APPLICATION OF AN EXTRANEOUS SOURCE OF HEAT THERETO.
Claim 2
Independent Claim
112 words
A METHOD OF INCREASING FLUID FLOW FROM A FORMATION HAVING AT LEAST ONE FRACTURE CREATED THEREIN AND PENETRATED BY A WELL COMPRISING DETERMINING THE TEMPERATURE OF SAID FORMATION, SLECTING A MATERIAL FUSIBLE AT LESS THAN SAID TEMPERATURE, PARTICULATING SAID MATERIAL, SEGREGATING A PREDETERMINED SIZE RANGE OF SAID MTERIAL, COMBINING SAID MATERIAL IN A PREDETERMINED RATIO WITH PRESELECTED PROPPING AGENTS TO FORM A MIXTURE OF SAID MATERIAL AND SAID PROPPING AGENTS, SUSPENDING SAID MIXTURE IN A LIQUID, FORCING SAID LIQUID CONTAINING SAID MIXTURE INTO SAID FRACTURE WHILE MAINTAINING THE CONPETENCY OF SAID FUSIBLE MATERIAL AND REMOVING THE SAID FUSIBLE MATERIAL FROM SAID FRACTURE WITHOUT THE APPLICATION OF AN EXTRANEOUS SOURCE OF HEAT THERETO.
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) | 1969-07-04 | 1970-01-03 | 1970-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-04 | 1974-01-03 | 1974-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-04 | 1978-01-03 | 1978-07-05 | $7700.00 | Window Closed / Lapsed |