US3219111A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for stopping loss of circulating fluid in well bores
Assignee: Individual
•
Filing: 1962-09-05
•
Granted: 1965-11-23
•
Expires: 1982-09-05
Abstract
No abstract record available.
Inventors
- 👤 Arthur L Armentrout
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:55
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/50; C09K8/516; Y; Y10; Y10S; Y10S507/00; Y10S507/906
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
THE METHOD OF SEALING OPENINGS IN THE EARTH''S FORMATION TRAVERSED BY AND COMMUNICATING WITH A WELL BORE WHICH COMPRISES, SIMULTANEOUSLY INTRODUCING INTO THE WELL BORE A PUMPABLE FLUID AND AN AGGREGATE OF COMMINGLED GROUPS OF EXPANDED MARINE SHALE, THE GRANULES OF EACH GROUP BEING SUBSTANTIALLY THE SAME SIZE, THE VOLUME OF THE GRANULES OF EACH GROUP BEING APPROXIMATELY EQUAL TO THE VOLUME OF EVERY OTHER GROUP, EACH GRANULE HAVING KRUMBEIN INDICES OF SPHERICITY OF ABOUT .6 AND KRUMBEIN ROUNDNESS OF ABOUT .8, THE GRANULES OF EACH GROUP OF GRANULES BEING OF A SIZE WHICH WILL NOT FREELY MIGRATE THROUGH THE INTERSTICES ESTABLISHED BY THE GRANULES OF THE NEXT LARGER GROUP WHEN THE GRANULES OF THE NEXT LARGER GROUP ARE IN BRIDGING CONTACT WITH EACH OTHER AND WITH THE GRANULES OF SUCCESSIVELY LARGER GROUPS.
Claim 2
Independent Claim
133 words
THE METHOD OF SEALING OPENINGS IN THE EARTH''S FORMATION TRAVERSED BY AND COMMUNICATING WITH A WELL BORE WHICH COMPRISES, SIMULTANEOUSLY INTRODUCING INTO THE WELL BORE A PUMPABLE FLUID AND AN AGGREGATE OF COMMINGLED GROUPS OF EXPANDED MARINE SHALE, THE GRANULES OF EACH GROUP BEING SUBSTANTIALLY THE SAME SIZE, THE VOLUME OF THE GRANULES OF EACH GROUP BEING APPROXIMATELY EQUAL TO THE VOLUME OF EVERY OTHER GROUP, EACH GRANULE HAVING KRUMBEIN INDICES OF SPHERICITY OF ABOUT .6 AND KRUMBEIN ROUNDNESS OF ABOUT .8, THE GRANULES OF EACH GROUP OF GRANULES BEING OF A SIZE WHICH WILL NOT FREELY MIGRATE THROUGH THE INTERSTICES ESTABLISHED BY THE GRANULES OF THE NEXT LARGER GROUP WHEN THE GRANULES OF THE NEXT LARGER GROUP ARE IN BRIDGING CONTACT WITH EACH OTHER AND WITH THE GRANULES OF SUCCESSIVELY LARGER GROUPS.
References Cited (Backward Citations)
US2634098A
Cited
US2561075A
Cited
US2650195A
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US2683690A
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US2788323A
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US2846390A
Cited
US2815079A
Cited
US2943680A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-22 | 1969-05-24 | 1969-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-22 | 1973-05-24 | 1973-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-22 | 1977-05-24 | 1977-11-23 | $7700.00 | Window Closed / Lapsed |