US3277962A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gravel packing method
Assignee: Pan American Petroleum Corp
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Filing: 1963-11-29
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Granted: 1966-10-11
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Expires: 1983-11-29
Abstract
No abstract record available.
Inventors
- 👤 Don H Flickinger
- 👤 George C Howard
- 👤 Clarence R Fast
- 👤 William G Bearden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:55
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/02; E21B43/04; E21B43/045
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
182 words
A METHOD OF COMPLETING A WELL IN WHICH A PIPE STRING IS SUSPENDED WITHIN A CASING WHICH COMPRISES: POSITIONING A SCREEN MEMBER EXTENDING DOWNWARDLY FROM SAID PIPE STRING AND AT A DESIRED DEPTH IN THE WELL; FILLING THE SPACE BETWEEN THE SCREEN MEMBER AND THE WALL OF THE WELL OPPOSITE THE PRODUCTIVE FORMATION WITH A GRAVEL PACKING MATERIAL; CIRCULATING A FLUID DOWNWARDLY THROUGH SAID PIPE STRING AND LATERALLY THROUGH A CONDUIT MEANS TO DISCHARGE SAID FLUID AT A POINT IN THE ANNULUS BETWEEN SAID CASING AND SAID WELL ABOVE SAID GRAVEL PACKING MATERIAL, SAID CIRCULATING FLUID INCLUDING A CEMENT SLURRY; DURING SUCH CIRCULATING, MAINTAINING THE ANNULUS FROM SAID POINT UPWARDLY IN FREE FLUID COMMUNICATION WITH THE EXTERIOR OF SAID WELL SO THAT FLUID IN SAID ANNULUS CAN BE DISPLACED BY THE CIRCULATION OF SAID FLUID; STOPPING THE SAID CIRCULATING OF THE FLUID WITH SAID CEMENT SLURRY BEING IN CONTACT WITH SAID GRAVEL PACKING MATERIAL SO AS TO COMPRESS SUCH GRAVEL PACKING MATERIAL; ALLOWING SAID CEMENT SLURRY TO SET WHEREBY SAID PIPE IS CEMENTED AND MOVEMENT OF SAID GRAVEL PACKING MATERIAL IS RESTRAINED.
Claim 2
Independent Claim
182 words
A METHOD OF COMPLETING A WELL IN WHICH A PIPE STRING IS SUSPENDED WITHIN A CASING WHICH COMPRISES: POSITIONING A SCREEN MEMBER EXTENDING DOWNWARDLY FROM SAID PIPE STRING AND AT A DESIRED DEPTH IN THE WELL; FILLING THE SPACE BETWEEN THE SCREEN MEMBER AND THE WALL OF THE WELL OPPOSITE THE PRODUCTIVE FORMATION WITH A GRAVEL PACKING MATERIAL; CIRCULATING A FLUID DOWNWARDLY THROUGH SAID PIPE STRING AND LATERALLY THROUGH A CONDUIT MEANS TO DISCHARGE SAID FLUID AT A POINT IN THE ANNULUS BETWEEN SAID CASING AND SAID WELL ABOVE SAID GRAVEL PACKING MATERIAL, SAID CIRCULATING FLUID INCLUDING A CEMENT SLURRY; DURING SUCH CIRCULATING, MAINTAINING THE ANNULUS FROM SAID POINT UPWARDLY IN FREE FLUID COMMUNICATION WITH THE EXTERIOR OF SAID WELL SO THAT FLUID IN SAID ANNULUS CAN BE DISPLACED BY THE CIRCULATION OF SAID FLUID; STOPPING THE SAID CIRCULATING OF THE FLUID WITH SAID CEMENT SLURRY BEING IN CONTACT WITH SAID GRAVEL PACKING MATERIAL SO AS TO COMPRESS SUCH GRAVEL PACKING MATERIAL; ALLOWING SAID CEMENT SLURRY TO SET WHEREBY SAID PIPE IS CEMENTED AND MOVEMENT OF SAID GRAVEL PACKING MATERIAL IS RESTRAINED.
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) | 1969-10-10 | 1970-04-11 | 1970-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-10 | 1974-04-11 | 1974-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-10 | 1978-04-11 | 1978-10-11 | $7700.00 | Window Closed / Lapsed |