US3330355A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for installing a well
Assignee: FMC Corp
•
Filing: 1963-10-03
•
Granted: 1967-07-11
•
Expires: 1983-10-03
Abstract
No abstract record available.
Inventors
- 👤 John R Yancey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:32
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/02; E21B33/03; E21B33/04; E21B33/047
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
A METHOD OF HANGING A STRING OF PIPE IN A WELL AFTER THE STRING IS TEMPORARILY SUPPORTED ON A HEAD AND FLUID FLOW UPWARDLY THROUGH THE STRING AND BETWEEN THE STRING AND THE HEAD IS PRECLUDED, COMPRISING THE STEPS OF CONNECTING AN ATTACHMENT TO THE HEAD IN LATERALLY ADJACENT RELATION TO THE UPPER END OF THE STRING WHILE MAINTAINING SAID STRING STATIONARY, LIFTING THE STRING RELATIVELY TO THE ATTACHMENT WHILE MAINTAINING CONNECTION OF THE ATTACHMENT TO THE HEAD AND WHILE CONTINUING TO PRECLUDE UPWARD FLUID FLOW BETWEEN THE STRING AND HEAD, AND IMPOSING THE WEIGHT OF THE STRING ON THE ATTACHMENT SO THAT SUBSEQUENT DISCONNECTION OF THE ATTACHMENT FROM THE HEAD AND ELEVATION OF THE ATTACHMENT WILL CAUSE THE STRING TO BE ELEVATED WITH THE ATTACHMENT.
Claim 2
Independent Claim
126 words
A METHOD OF HANGING A STRING OF PIPE IN A WELL AFTER THE STRING IS TEMPORARILY SUPPORTED ON A HEAD AND FLUID FLOW UPWARDLY THROUGH THE STRING AND BETWEEN THE STRING AND THE HEAD IS PRECLUDED, COMPRISING THE STEPS OF CONNECTING AN ATTACHMENT TO THE HEAD IN LATERALLY ADJACENT RELATION TO THE UPPER END OF THE STRING WHILE MAINTAINING SAID STRING STATIONARY, LIFTING THE STRING RELATIVELY TO THE ATTACHMENT WHILE MAINTAINING CONNECTION OF THE ATTACHMENT TO THE HEAD AND WHILE CONTINUING TO PRECLUDE UPWARD FLUID FLOW BETWEEN THE STRING AND HEAD, AND IMPOSING THE WEIGHT OF THE STRING ON THE ATTACHMENT SO THAT SUBSEQUENT DISCONNECTION OF THE ATTACHMENT FROM THE HEAD AND ELEVATION OF THE ATTACHMENT WILL CAUSE THE STRING TO BE ELEVATED WITH THE ATTACHMENT.
References Cited (Backward Citations)
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Cited
US2122827A
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US2122071A
Cited
US2443944A
Cited
US3050120A
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US3059698A
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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) | 1970-07-10 | 1971-01-09 | 1971-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-10 | 1975-01-09 | 1975-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-10 | 1979-01-09 | 1979-07-11 | $7700.00 | Window Closed / Lapsed |