US4537254A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Steam injection well gravel pack material of sintered bauxite
Assignee: Chevron USA Inc
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Filing: 1984-07-05
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Granted: 1985-08-27
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Expires: 2004-07-05
Abstract
Abstract A packing material useful in a gravel pack for open or cased wells or in a prepack for use in steam or hot fluid injection and production wells. The packing material is a material which is insoluble in high temperature caustic fluids and subsurface formation fluids. Sintered bauxite is a claimed material.
Inventors
- 👤 Thomas D. Elson
- 👤 Ralph S. Millhone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 00:44
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/02; E21B43/08; E21B43/082; E21B43/04; E21B43/086
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
52 words
A method for reducing particulate material pack dissolution in subsurface wellbore environment comprising installing a pack material consisting essentially of sintered bauxite without a binder material in the subsurface wellbore as said pack particulate material and passing hot well fluids including steam into or out of said subsurface through said sintered bauxite.
Claim 2
Independent Claim
52 words
A method for reducing particulate material pack dissolution in subsurface wellbore environment comprising installing a pack material consisting essentially of sintered bauxite without a binder material in the subsurface wellbore as said pack particulate material and passing hot well fluids including steam into or out of said subsurface through said sintered bauxite.
References Cited (Backward Citations)
US2600150A
Cited
US3534816A
Cited
US3768557A
Cited
US4068718A
Cited
GB2037727A
Cited
US4247430A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-08-26 | 1989-02-25 | 1989-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-08-26 | 1993-02-25 | 1993-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-08-26 | 1997-02-25 | 1997-08-27 | $7700.00 | Window Closed / Lapsed |