US3268006A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for installing and retrieving well tools in well strings
Assignee: Shell USA Inc
•
Filing: 1962-09-10
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Granted: 1966-08-23
•
Expires: 1982-09-10
Abstract
No abstract record available.
Inventors
- 👤 William J Hayes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:19
CPC Classifications
E; E21; E21B; E21B23/00; E21B23/08; E21B23/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
150 words
AN APPARATUS FOR REMOVING WELL TOOLS FROM POCKETS DISPOSED LATERALLY OF AND IN COMMUNICATION WITH THE INTERIOR OF A WELL STRING, SAID APPARATUS COMPRISING: A WELL STRING HAVING LATERALLY DISPOSED POCKETS THEREIN; A CARRIER ADAPTED TO BE PUMPED THROUGH THE WELL STRING, SAID CARRIER INCLUDING PACKER MEANS IN FLUID-TIGHT ENGAGEMENT WITH THE INTERIOR OF THE WELL STRING; A TOOL RETRIEVER CARRIED BY SAID CARRIERE, SAID RETRIEVER BEING ADAPTED TO ATTACH ITSELF TO A TOOL POSITIONED IN A LATERALLY-DISPOSED POCKET OF THE WELL STRING; MEANS OPERATIVELY ASSOCIATED WITH SAID RETRIEVER TO BIAS THE RETRIEVER TOWARDS THE POCKETS DISPOSED LATERALLY OF THE WELL STRING IN WHICH A TOOL MAY BE POSITIONED; AND, INDEXING MEANS TO FACILITATE POSITIONING OF THE RETRIEVER ADJACENT THE PRESELECTED POCKET WHICH HOLDS THE TOOL TO BE REMOVED, SAID INDEXING MEANS COMPRISING FIRST AND SECOND ENGAGEABLE PORTIONS INCLUDED IN THE STRUCTURE OF SAID WELL STRING AND SAID CARRIER, RESPECTIVELY.
Claim 2
Independent Claim
150 words
AN APPARATUS FOR REMOVING WELL TOOLS FROM POCKETS DISPOSED LATERALLY OF AND IN COMMUNICATION WITH THE INTERIOR OF A WELL STRING, SAID APPARATUS COMPRISING: A WELL STRING HAVING LATERALLY DISPOSED POCKETS THEREIN; A CARRIER ADAPTED TO BE PUMPED THROUGH THE WELL STRING, SAID CARRIER INCLUDING PACKER MEANS IN FLUID-TIGHT ENGAGEMENT WITH THE INTERIOR OF THE WELL STRING; A TOOL RETRIEVER CARRIED BY SAID CARRIERE, SAID RETRIEVER BEING ADAPTED TO ATTACH ITSELF TO A TOOL POSITIONED IN A LATERALLY-DISPOSED POCKET OF THE WELL STRING; MEANS OPERATIVELY ASSOCIATED WITH SAID RETRIEVER TO BIAS THE RETRIEVER TOWARDS THE POCKETS DISPOSED LATERALLY OF THE WELL STRING IN WHICH A TOOL MAY BE POSITIONED; AND, INDEXING MEANS TO FACILITATE POSITIONING OF THE RETRIEVER ADJACENT THE PRESELECTED POCKET WHICH HOLDS THE TOOL TO BE REMOVED, SAID INDEXING MEANS COMPRISING FIRST AND SECOND ENGAGEABLE PORTIONS INCLUDED IN THE STRUCTURE OF SAID WELL STRING AND SAID CARRIER, RESPECTIVELY.
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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) | 1969-08-22 | 1970-02-21 | 1970-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-22 | 1974-02-21 | 1974-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-22 | 1978-02-21 | 1978-08-23 | $7700.00 | Window Closed / Lapsed |