US3261400A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Selective plugging method
Assignee: Mobil Oil AS
•
Filing: 1963-05-14
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Granted: 1966-07-19
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Expires: 1983-05-14
Abstract
No abstract record available.
Inventors
- 👤 Elliott B Elfrink
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:23
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
A METHOD FOR CREATING A BARRIER OF REDUCED PERMEABILITY IN A FORMATION COMPRISING THE STEPS OF: (A) PASSING A FLUID INCLUDING AN AGENT CONVERTIBLE BY REACTION SUBSTANTIALLY EXCLUSIVELY WITH A SUBSEQUENTLY INTRODUCED ACTIVATING FLUID TO A PLUGGING MATERIAL A GIVEN DISTANCE IN A FORMATION, (B) FOLLOWING SAID AGENT WITH A MISCIBLE FLUID SLUG, SAID MISCIBLE FLUID DISPLACING SAID AGENT SUBSTANTIALLY IN ITS ENTIRETY THROUGH THE FORMATION WITHOUT CONVERTING SAID AGENT TO A PLUGGING MATERIAL AND (C) FOLLOWING SAID MISCIBLE FLUID WITH AN IMMISCIBLE FLUID FOR CONVERTING SAID AGENT TO A PLUGGING MATERIAL UPON CONTACT, SAID MISCIBLE FLUID SLUG BEING INITIALLY PRESENT IN ONLY SUCH AMOUNT AS TO BE SUBSTANTIALLY DISSIPATED IN THE FORMATION UPON THE AGENT TRAVELING THE GIVEN DISTANCE IN THE FORMATION PERMITTING THE IMMISCIBLE FLUID TO CONTACT THE AGENT TO PRODUCE THE PLUGGING MATERIAL THEREBY FORMING A BARRIER OF REDUCED PERMEABILITY IN THE FORMATION.
Claim 2
Independent Claim
146 words
A METHOD FOR CREATING A BARRIER OF REDUCED PERMEABILITY IN A FORMATION COMPRISING THE STEPS OF: (A) PASSING A FLUID INCLUDING AN AGENT CONVERTIBLE BY REACTION SUBSTANTIALLY EXCLUSIVELY WITH A SUBSEQUENTLY INTRODUCED ACTIVATING FLUID TO A PLUGGING MATERIAL A GIVEN DISTANCE IN A FORMATION, (B) FOLLOWING SAID AGENT WITH A MISCIBLE FLUID SLUG, SAID MISCIBLE FLUID DISPLACING SAID AGENT SUBSTANTIALLY IN ITS ENTIRETY THROUGH THE FORMATION WITHOUT CONVERTING SAID AGENT TO A PLUGGING MATERIAL AND (C) FOLLOWING SAID MISCIBLE FLUID WITH AN IMMISCIBLE FLUID FOR CONVERTING SAID AGENT TO A PLUGGING MATERIAL UPON CONTACT, SAID MISCIBLE FLUID SLUG BEING INITIALLY PRESENT IN ONLY SUCH AMOUNT AS TO BE SUBSTANTIALLY DISSIPATED IN THE FORMATION UPON THE AGENT TRAVELING THE GIVEN DISTANCE IN THE FORMATION PERMITTING THE IMMISCIBLE FLUID TO CONTACT THE AGENT TO PRODUCE THE PLUGGING MATERIAL THEREBY FORMING A BARRIER OF REDUCED PERMEABILITY IN THE FORMATION.
References Cited (Backward Citations)
US3141503A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-18 | 1970-01-17 | 1970-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-18 | 1974-01-17 | 1974-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-18 | 1978-01-17 | 1978-07-19 | $7700.00 | Window Closed / Lapsed |