US2718264A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of squeeze cementing in cased boreholes
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1951-07-25
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Granted: 1955-09-20
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Expires: 1971-07-25
Abstract
No abstract record available.
Inventors
- 👤 Thomas O Allen
- 👤 Jr John C Mcduffie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:10
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/10; E21B33/13; E21B33/138
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
A METHOD FOR PRECAUTIONARY SQUEEZE CEMENTING IN A WELL CASING SHEATHED IN CEMENT AND TRAVERSING A FORMATION TO BE SQUEEZE COMENTED WHICH COMPRISES ISOLATING AN UPPER ZONE IN A CASED WELL BORE FROM A LOWER ZONE THEREIN, LOCATING A BODY OF FLUID CEMENTITOUS MATERIAL IN SAID ISOLATED ZONE ADJACENT SAID FORMATION TO BE SQUEEZED, DISCHARGING A HIGH EXPLOSIVE SHAPED CHARGE IN SAID CEMENTITIONS MATERIAL AGAINST THE CASING TO FORM PERFORATIONS IN SAID CASING, CEMENT SHEATH, AND FORMATION, SUBSTANTIALLY SIMULTANEOUSLY FORCING ONLY A PORTION OF THE CENMENTITIOUS MATERIAL THROUGH THE PERFORATIONS BY THE
Claim 2
Independent Claim
92 words
A METHOD FOR PRECAUTIONARY SQUEEZE CEMENTING IN A WELL CASING SHEATHED IN CEMENT AND TRAVERSING A FORMATION TO BE SQUEEZE COMENTED WHICH COMPRISES ISOLATING AN UPPER ZONE IN A CASED WELL BORE FROM A LOWER ZONE THEREIN, LOCATING A BODY OF FLUID CEMENTITOUS MATERIAL IN SAID ISOLATED ZONE ADJACENT SAID FORMATION TO BE SQUEEZED, DISCHARGING A HIGH EXPLOSIVE SHAPED CHARGE IN SAID CEMENTITIONS MATERIAL AGAINST THE CASING TO FORM PERFORATIONS IN SAID CASING, CEMENT SHEATH, AND FORMATION, SUBSTANTIALLY SIMULTANEOUSLY FORCING ONLY A PORTION OF THE CENMENTITIOUS MATERIAL THROUGH THE PERFORATIONS BY THE
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-09-19 | 1959-03-21 | 1959-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-09-19 | 1963-03-21 | 1963-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-09-19 | 1967-03-21 | 1967-09-20 | $7700.00 | Window Closed / Lapsed |