US3233673A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fracturing formations in wells
Assignee: ExxonMobil Upstream Research Co
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Filing: 1963-12-09
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Granted: 1966-02-08
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Expires: 1983-12-09
Abstract
No abstract record available.
Inventors
- 👤 Horace H Spain
- 👤 John W Kenneday
- 👤 Otto R Harrison
- 👤 Jr Cleveland Dear
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:09
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/25; E21B43/26; E21B43/267
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
128 words
IN A METHOD OF TREATING A FORMATION TO INCREASE PRODUCTION OF EARTH FLUIDS FROM A HYDROCARBON PRODUCTIVE EARTH FORMATION WHEREIN THE FORMATION IS FRACTURED BY PUMPING AT FRACTURING PRESSURE THROUGH A WELL BORE AND INTO THE FORMATION A FRACTURING FLUID HAVING ADMIXED THEREWITH A PARTICULATE PROPPING AGENT, THE IMPROVEMENT COMPRISING: FOLLOWING THE FRACTURING FLUID, INJECTING INTO THE WELL BORE A CARRIER LIQUID HAVING ADMIXED THEREWITH PARTICULATE ALKALINE EARTH CARBONATE MATERIAL HAVING PARTICLE SIZES BETWEEN 4 AND 40 MESH AND SUFFICIENT IN QUANTITY TO FILL THE WELL BORE TO ABOVE THE FRACTURE WHEN SETTLED; MAINTAINING HYDRAULIC PRESSURE IN THE WELL BORE AT LEAST EQUAL TO THE FORMATION PRESSURE UNTIL THE FRACTURED FORMATION HAS STABILIZED BOTH WITH RESPECT TO FORMATION PRESSURE AND CLOSURE OF THE FORMATION AROUND THE PROPPING ARTICLES.
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) | 1969-02-07 | 1969-08-09 | 1970-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-07 | 1973-08-09 | 1974-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-07 | 1977-08-09 | 1978-02-08 | $7700.00 | Window Closed / Lapsed |