US3306102A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Formation evaluation method and apparatus
Assignee: Schlumberger Technology Corp
•
Filing: 1963-12-04
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Granted: 1967-02-28
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Expires: 1983-12-04
Abstract
No abstract record available.
Inventors
- 👤 Maurice P Lebourg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:05
CPC Classifications
E; E21; E21B; E21B49/00; E21B49/08; E21B49/087; G; G01; G01V; G01V9/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
173 words
A METHOD FOR COMPLETING WELLS COMPRISING THE STEPS OF: PASSING INTO AN OPEN WELL BORE ON A DRILL STRING A FIRST TOOL INCLUDING A FIRST RADIOACTIVITY LOGGING DEVICE AND A TESTER WITH A PACKER MEANS AND A SELECTIVELY-OPERABLE VALVE; LOGGING WITH SAID FIRST RADIOACTIVITY LOGGING DEVICE THE EARTH FORMATIONS TRAVERSED BY THE WELL BORE TO OBTAIN A FIRST LOG; TESTING AT LEAST SOME OF THE EARTH FORMATIONS LOGGED WITH THE LOGGING DEVICE BY ISOLATING A SECTION OF THE WELL BORE WITH THE PACKER MEANS AND FLOWING FLUIDS INTO THE DRILL STRING BY OPERATING THE TESTER VALVE; AND SUBSEQUENTLY, AFTER CASING OF THE WELL BORE, PASSING A SECOND TOOL INTO THE CASED WELL BORE INCLUDING A PERFORATING MEANS AND A SECOND RADIOACTIVITY LOGGING DEVICE; LOGGING WITH SAID SECOND RADIOACTIVITY DEVICE THE EARTH FORMATIONS TRAVERSED BY THE CASING TO OBTAIN A SECOND LOG; AND THEN POSITIONING SAID PERFORATING MEANS ADJACENT SUCH EARTH FORMATIONS TO BE COMPLETED AS DETERMINED BY CORRELATION OF SAID FIRST AND SECOND LOGS TO ONE ANOTHER; AND THEREAFTER OPERATING SAID PERFORATING APPARATUS.
Claim 2
Independent Claim
173 words
A METHOD FOR COMPLETING WELLS COMPRISING THE STEPS OF: PASSING INTO AN OPEN WELL BORE ON A DRILL STRING A FIRST TOOL INCLUDING A FIRST RADIOACTIVITY LOGGING DEVICE AND A TESTER WITH A PACKER MEANS AND A SELECTIVELY-OPERABLE VALVE; LOGGING WITH SAID FIRST RADIOACTIVITY LOGGING DEVICE THE EARTH FORMATIONS TRAVERSED BY THE WELL BORE TO OBTAIN A FIRST LOG; TESTING AT LEAST SOME OF THE EARTH FORMATIONS LOGGED WITH THE LOGGING DEVICE BY ISOLATING A SECTION OF THE WELL BORE WITH THE PACKER MEANS AND FLOWING FLUIDS INTO THE DRILL STRING BY OPERATING THE TESTER VALVE; AND SUBSEQUENTLY, AFTER CASING OF THE WELL BORE, PASSING A SECOND TOOL INTO THE CASED WELL BORE INCLUDING A PERFORATING MEANS AND A SECOND RADIOACTIVITY LOGGING DEVICE; LOGGING WITH SAID SECOND RADIOACTIVITY DEVICE THE EARTH FORMATIONS TRAVERSED BY THE CASING TO OBTAIN A SECOND LOG; AND THEN POSITIONING SAID PERFORATING MEANS ADJACENT SUCH EARTH FORMATIONS TO BE COMPLETED AS DETERMINED BY CORRELATION OF SAID FIRST AND SECOND LOGS TO ONE ANOTHER; AND THEREAFTER OPERATING SAID PERFORATING APPARATUS.
References Cited (Backward Citations)
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US2320863A
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US2320890A
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US2459499A
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US2650067A
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US3038333A
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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) | 1970-02-27 | 1970-08-29 | 1971-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-27 | 1974-08-29 | 1975-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-27 | 1978-08-29 | 1979-02-28 | $7700.00 | Window Closed / Lapsed |