Patent US3268908A successfully refreshed from Google Patents.
US3268908A
Expired / Lapsed
US
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Drilling log comparator
Assignee: ExxonMobil Upstream Research Co
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Filing: 1964-03-11
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Granted: 1966-08-23
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Expires: 1984-03-11
Abstract
No abstract record available.
Inventors
- 👤 Thomas E Allen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:58
CPC Classifications
E; E21; E21B; E21B41/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
AN APPARATUS FOR COMPARING A CURRENT LOG BEING OBTAINED ON A WELL WHILE DRILLING WITH A PRIOR LOG OBTAINED FROM AN ADJACENT WALL DRILLED EARLIER, THE COMBINATION WHICH COMPRISES: FIRST MEANS FOR FORMING A CURRENT LOG OF THE WELL AS IT IS BEING DRILLED; SECOND MEANS FOR SUPPORTING SAID PRIOR LOG LATERALLY ADJACENT SAID CURRENT LOG BEING FORMED; DRIVING MEANS TO MOVE SAID CURRENT LONG AND SAID PRIOR LOG LONGITUDINALLY AS A UNIT; SAID DRIVING MEANS INCLUDING MEANS TO MOVE SAID PRIOR LONG LONGITUDINALLY INDEPENDENT TO SAID CURRENT LOG; AND TRANSPARENT VIEWING MEANS ARRANGED TO OVERLAY SAID CURRENT LOG AND SAID PRIOR LOG, SAID TRANSPARENT VIEWING MEANS INCLUDING AT LEAST ONE LATERALLY DISPOSED LINEAR INDEX WHEREBY THE LONGITUDINAL ALIGNMENT OF POINTS ALONG SAID CURRENT LOG AND SAID PRIOR LOG MAY BE COMPARED.
Claim 2
Independent Claim
132 words
AN APPARATUS FOR COMPARING A CURRENT LOG BEING OBTAINED ON A WELL WHILE DRILLING WITH A PRIOR LOG OBTAINED FROM AN ADJACENT WALL DRILLED EARLIER, THE COMBINATION WHICH COMPRISES: FIRST MEANS FOR FORMING A CURRENT LOG OF THE WELL AS IT IS BEING DRILLED; SECOND MEANS FOR SUPPORTING SAID PRIOR LOG LATERALLY ADJACENT SAID CURRENT LOG BEING FORMED; DRIVING MEANS TO MOVE SAID CURRENT LONG AND SAID PRIOR LOG LONGITUDINALLY AS A UNIT; SAID DRIVING MEANS INCLUDING MEANS TO MOVE SAID PRIOR LONG LONGITUDINALLY INDEPENDENT TO SAID CURRENT LOG; AND TRANSPARENT VIEWING MEANS ARRANGED TO OVERLAY SAID CURRENT LOG AND SAID PRIOR LOG, SAID TRANSPARENT VIEWING MEANS INCLUDING AT LEAST ONE LATERALLY DISPOSED LINEAR INDEX WHEREBY THE LONGITUDINAL ALIGNMENT OF POINTS ALONG SAID CURRENT LOG AND SAID PRIOR LOG MAY BE COMPARED.
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) | 1969-08-22 | 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 |