US2670048A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of sealing porous formations
Assignee: Stanolind Oil and Gas Co
•
Filing: 1949-10-20
•
Granted: 1954-02-23
•
Expires: 1969-10-20
Abstract
No abstract record available.
Inventors
- 👤 Paul L Menaul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:30
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/50; C09K8/502
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
A METHOD OF SEALING THE PORES IN FORMATIONS TRAVERSED BY A WELL COMPRISING INJECTING INTO SAID FORMATIONS AN ACRYLIC RESIN DISPERSED IN A SOLVENT SAID ACRYLIC RESIN BEING PRESENT IN THE AMOUNT OF AT LEAST 0.5 PER CENT OF SAID SOLVENT AND INJECTING A LIQUID CONTAINING AN ANIONIC COMPOUND IN A SOLUTION MISCIBLE WITH SAID SOLVENT INTO SAID FORMATION TO FLOCCULATE SAID RESIN IN SAID FORMATION AND SEAL SAID PORES.
Claim 2
Independent Claim
70 words
A METHOD OF SEALING THE PORES IN FORMATIONS TRAVERSED BY A WELL COMPRISING INJECTING INTO SAID FORMATIONS AN ACRYLIC RESIN DISPERSED IN A SOLVENT SAID ACRYLIC RESIN BEING PRESENT IN THE AMOUNT OF AT LEAST 0.5 PER CENT OF SAID SOLVENT AND INJECTING A LIQUID CONTAINING AN ANIONIC COMPOUND IN A SOLUTION MISCIBLE WITH SAID SOLVENT INTO SAID FORMATION TO FLOCCULATE SAID RESIN IN SAID FORMATION AND SEAL SAID PORES.
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) | 1957-02-22 | 1957-08-24 | 1958-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-02-22 | 1961-08-24 | 1962-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-02-22 | 1965-08-24 | 1966-02-23 | $7700.00 | Window Closed / Lapsed |