US3285350A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for controllably drilling off-vertical holes
Assignee: Individual
•
Filing: 1964-04-23
•
Granted: 1966-11-15
•
Expires: 1984-04-23
Abstract
No abstract record available.
Inventors
- 👤 Henderson John Keller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:57
CPC Classifications
E; E21; E21B; E21B7/00; E21B7/04; E21B7/06; E21B7/064
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
A METHOD OF DRILING A LATERALLY EXTENDING HOLE FROM A FIRST WELL INTO COMMUNCIATION WITH A SECOND WELL SPACED FROM SAID WELL, SAID METHOD COMPRISING THE STEPS OF: DRILLING LATERALLY FROM SAID FIRST WELL WITH A DRILLING DEVICE; EMITTING A SIGNAL FROM ADJACENT SAID DRILLING DEVICE DURING THE DRILLING OF SAID LATERALLY EXTENDING HOLE; RECEIVING SAID EMITTED SIGNAL AT A POINT IN SAID SECOND WELL WHERE COMMUNICATION BETWEEN SAID FIRST WELL AND SAID RECEIVING EMITTED SIGNAL AT THE SURFACE; INDICATING SAID RECEIVED EMITTED SIGNAL AT THE SURFACE; CHANGING THE DIRECTION OF DRILLING WITH SAID DRILLING DEVICE UNTIL SAID DRILLING DEVICE IS ADVANCING TOWARD SAID SECOND WELL AS INDICATED BY THE SIGNAL RECEIVED IN SAID SECOND WELL; AND CONTINUING DRILLING OF SAID HOLE UNTIL SAID HOLE ENTERS SAID SECOND WELL.
Claim 2
Independent Claim
129 words
A METHOD OF DRILING A LATERALLY EXTENDING HOLE FROM A FIRST WELL INTO COMMUNCIATION WITH A SECOND WELL SPACED FROM SAID WELL, SAID METHOD COMPRISING THE STEPS OF: DRILLING LATERALLY FROM SAID FIRST WELL WITH A DRILLING DEVICE; EMITTING A SIGNAL FROM ADJACENT SAID DRILLING DEVICE DURING THE DRILLING OF SAID LATERALLY EXTENDING HOLE; RECEIVING SAID EMITTED SIGNAL AT A POINT IN SAID SECOND WELL WHERE COMMUNICATION BETWEEN SAID FIRST WELL AND SAID RECEIVING EMITTED SIGNAL AT THE SURFACE; INDICATING SAID RECEIVED EMITTED SIGNAL AT THE SURFACE; CHANGING THE DIRECTION OF DRILLING WITH SAID DRILLING DEVICE UNTIL SAID DRILLING DEVICE IS ADVANCING TOWARD SAID SECOND WELL AS INDICATED BY THE SIGNAL RECEIVED IN SAID SECOND WELL; AND CONTINUING DRILLING OF SAID HOLE UNTIL SAID HOLE ENTERS SAID SECOND WELL.
References Cited (Backward Citations)
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US2670801A
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US2561639A
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US2796129A
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US2988728A
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US2788956A
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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) | 1969-11-14 | 1970-05-16 | 1970-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-14 | 1974-05-16 | 1974-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-14 | 1978-05-16 | 1978-11-15 | $7700.00 | Window Closed / Lapsed |