US3253653A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Well tool for placing tubular element in well
Assignee: Individual
•
Filing: 1963-09-18
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Granted: 1966-05-31
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Expires: 1983-09-18
Abstract
No abstract record available.
Inventors
- 👤 Sr Warren K Layne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:24
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/02; E21B43/10; E21B23/00; E21B23/04; E21B23/0414; Y; Y10; Y10S; Y10S285/00; Y10S285/92
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
A WELL TOOL FOR PLACING A TUBULAR ELEMENT IN A WELL, SAID TUBULAR ELEMENT HAVING A GENERALLY TUBULAR UPPER PORTION WITH A DOWNWARDLY FACING EXTERNAL SHOULDER, SAID WELL TOOL COMPRISING: A BODY MEMBER, MEANS FOR ATTACHING SAID BODY MEMBER TO A LOWERING CABLE, A PLURALITY OF FLEXIBLE SEGMENTS ATTACHED TO THE LOWER END OF SAID BODY MEMBER AND EXTENDING GENERALLY DOWNWARDLY THEREFROM AND FORMING AN UPPER INTERNAL BORE FOR RECEIVING SAID UPPER PORTION OF SAID TUBULAR ELEMENT, AT LEAST ONE OF SAID SEGMENTS HAVING A RADIALLY INWARDLY EXTENDING LOWER PORTION FORMING A REDUCED LOWER INTERNAL BORE FOR ENGAGING SAID EXTERNAL SHOULDER OF SAID TUBULAR ELEMENT IN THE ASSEMBLED CONDITION, RETAINING MEANS SECURED TO SAID SEGMENTS FOR RESTRAINING THE RADIALLY OUTWARD MOVEMENT OF SAID SEGMENTS, AND AN EXPLOSIVE CHARGE POSITIONED ADJACENT SAID RETAINING MEANS FOR SEVERING SAID RETAINING MEANS UPON DETONATION THEREOF.
Claim 2
Dependent Claim
141 words
A WELL TOOL FOR PLACING A TUBULAR ELEMENT IN A WELL, SAID TUBULAR ELEMENT HAVING A GENERALLY TUBULAR UPPER PORTION WITH A DOWNWARDLY FACING EXTERNAL SHOULDER, SAID WELL TOOL COMPRISING: A BODY MEMBER, MEANS FOR ATTACHING SAID BODY MEMBER TO A LOWERING CABLE, A PLURALITY OF FLEXIBLE SEGMENTS ATTACHED TO THE LOWER END OF SAID BODY MEMBER AND EXTENDING GENERALLY DOWNWARDLY THEREFROM AND FORMING AN UPPER INTERNAL BORE FOR RECEIVING SAID UPPER PORTION OF SAID TUBULAR ELEMENT, AT LEAST ONE OF SAID SEGMENTS HAVING A RADIALLY INWARDLY EXTENDING LOWER PORTION FORMING A REDUCED LOWER INTERNAL BORE FOR ENGAGING SAID EXTERNAL SHOULDER OF SAID TUBULAR ELEMENT IN THE ASSEMBLED CONDITION, RETAINING MEANS SECURED TO SAID SEGMENTS FOR RESTRAINING THE RADIALLY OUTWARD MOVEMENT OF SAID SEGMENTS, AND AN EXPLOSIVE CHARGE POSITIONED ADJACENT SAID RETAINING MEANS FOR SEVERING SAID RETAINING MEANS UPON DETONATION THEREOF.
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) | 1969-05-30 | 1969-11-29 | 1970-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-30 | 1973-11-29 | 1974-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-30 | 1977-11-29 | 1978-05-31 | $7700.00 | Window Closed / Lapsed |