US3176471A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of sealing or consolidating earthen formations
Assignee: Halliburton Co
•
Filing: 1961-08-08
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Granted: 1965-04-06
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Expires: 1981-08-08
Abstract
No abstract record available.
Inventors
- 👤 Ramos Joseph
- 👤 Homer C Mclaughlin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:53
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/50; C09K8/504; C09K8/506; C09K8/508; C09K8/5086; C09K17/00; C09K17/14; C09K17/18; C09K17/24; C09K17/28; C09K17/40; C09K17/48; C09K8/56; C09K8/57; C09K8/575; C09K8/5751; C09K8/5755
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
A METHOD OF SEALING OR CONSOLIDATING EARTHEN FORMATIONS, CONSISTING ESSENTIALLY OF THE STEPS OF MIXING A UREA-FORMALDEHYDE CONCENTRATE WITH WATER, UREA AND A HARDENING AGENT THEREBY FORMING A LOW VISCOSITY RESIN SOLUTION, INTRODUCING THE RESIN SOLUTION BEFORE SETTING THEREOF INTO THE EARTHEN FORMATION, AND ALLOWING THE RESIN SOLUTION TO SET A PREDETERMINED LENGTH OF TIME WHEREBY A HARD IMPERMEABLE COMPOUND OF HIGH COMPRESSIVE STRENGTH IS FORMED.
Claim 2
Independent Claim
66 words
A METHOD OF SEALING OR CONSOLIDATING EARTHEN FORMATIONS, CONSISTING ESSENTIALLY OF THE STEPS OF MIXING A UREA-FORMALDEHYDE CONCENTRATE WITH WATER, UREA AND A HARDENING AGENT THEREBY FORMING A LOW VISCOSITY RESIN SOLUTION, INTRODUCING THE RESIN SOLUTION BEFORE SETTING THEREOF INTO THE EARTHEN FORMATION, AND ALLOWING THE RESIN SOLUTION TO SET A PREDETERMINED LENGTH OF TIME WHEREBY A HARD IMPERMEABLE COMPOUND OF HIGH COMPRESSIVE STRENGTH IS FORMED.
References Cited (Backward Citations)
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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) | 1968-04-05 | 1968-10-05 | 1969-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-05 | 1972-10-05 | 1973-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-05 | 1976-10-05 | 1977-04-06 | $7700.00 | Window Closed / Lapsed |