Patent US3288216A successfully refreshed from Google Patents.
US3288216A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Increasing well injectivity
Assignee: Mobil Oil AS
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Filing: 1963-07-25
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Granted: 1966-11-29
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Expires: 1983-07-25
Abstract
No abstract record available.
Inventors
- 👤 Marne M Blickensderfer
- 👤 Carl F Brandner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:47
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/52; C09K8/528
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
A PROCESS FOR INCREASING THE FLOW OF FLUIDS BETWEEN A WELL AND A FORMATION OBSTRUCTED BY FLOW-RESTRICTING MATERIALS COMPRISING THE STEPS OF INTRODUCING THROUGH THE WELL INTO THE FORMATION IN IMMEDIATE SUCCESSION A SLUG OF 1,1,1-TRICHLOROETHANE, A SLUG OF TOLUENE, AND A SLUG OF METHANOL, AND EARTH OF SAID SLUGS HAVING A VOLUME SUFFICIENT TO PROVIDE A CONTINUOUS ZONE OF SAID SLUG ACROSS THE FORMATION WHEREBY SUBSTANTIAL PORTIONS OF THE FLOW-RESTRICTING MATERIALS ARE REMOVED FROM THE FORMATION AND WELL TO THEREBY INCREASE THE FLOW OF FLUIDS BETWEEN THE WELL AND THE FORMATION.
Claim 2
Dependent Claim
92 words
A PROCESS FOR INCREASING THE FLOW OF FLUIDS BETWEEN A WELL AND A FORMATION OBSTRUCTED BY FLOW-RESTRICTING MATERIALS COMPRISING THE STEPS OF INTRODUCING THROUGH THE WELL INTO THE FORMATION IN IMMEDIATE SUCCESSION A SLUG OF 1,1,1-TRICHLOROETHANE, A SLUG OF TOLUENE, AND A SLUG OF METHANOL, AND EARTH OF SAID SLUGS HAVING A VOLUME SUFFICIENT TO PROVIDE A CONTINUOUS ZONE OF SAID SLUG ACROSS THE FORMATION WHEREBY SUBSTANTIAL PORTIONS OF THE FLOW-RESTRICTING MATERIALS ARE REMOVED FROM THE FORMATION AND WELL TO THEREBY INCREASE THE FLOW OF FLUIDS BETWEEN THE WELL AND THE FORMATION.
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) | 1969-11-28 | 1970-05-30 | 1970-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-28 | 1974-05-30 | 1974-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-28 | 1978-05-30 | 1978-11-29 | $7700.00 | Window Closed / Lapsed |