US3254531A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Formation fluid sampling method
Assignee: Halliburton Co
•
Filing: 1962-05-03
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Granted: 1966-06-07
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Expires: 1982-05-03
Abstract
No abstract record available.
Inventors
- 👤 Jr George E Briggs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:30
CPC Classifications
E; E21; E21B; E21B49/00; E21B49/08; E21B49/10; G; G01; G01N; G01N1/00; G01N1/02; G01N1/10; G01N1/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
A METHOD OF OBTAINING SMAPLES OF CONNATE FLUID CONTENT OF AN EARTH FORMATION ABOUT A BOREHOLE TRAVERSING THE SAME COMPRISING THE STEPS OF: ESTABLISHING A FLOW OF FUILDS WITHIN AND FROM AND FORMATION: MEASURING THE ELECTRICAL RESISTIVITY OF SAID FLOW; PURGING THE FORMATION OF FILTRATE FLUIDS WITHING THE BOUNDARY OF SAID FLOW UNTIL OF RESISTIVITY MEASUREMENT BECOMES SUBSTANTIALLY CONSTANT; DIVERTING SAID FLOW INTO A COLLECTION MEANS FOR OBTAINING A SAMPLE QUANTITY OF FLUID; MEASURING SAID FLOW IN SAID COLLECTION MEANS; AND, RECORDING THE VARIATION OF SAID FLOW MEASUREMENT WITH RESPECT TO TIME.
Claim 2
Independent Claim
92 words
A METHOD OF OBTAINING SMAPLES OF CONNATE FLUID CONTENT OF AN EARTH FORMATION ABOUT A BOREHOLE TRAVERSING THE SAME COMPRISING THE STEPS OF: ESTABLISHING A FLOW OF FUILDS WITHIN AND FROM AND FORMATION: MEASURING THE ELECTRICAL RESISTIVITY OF SAID FLOW; PURGING THE FORMATION OF FILTRATE FLUIDS WITHING THE BOUNDARY OF SAID FLOW UNTIL OF RESISTIVITY MEASUREMENT BECOMES SUBSTANTIALLY CONSTANT; DIVERTING SAID FLOW INTO A COLLECTION MEANS FOR OBTAINING A SAMPLE QUANTITY OF FLUID; MEASURING SAID FLOW IN SAID COLLECTION MEANS; AND, RECORDING THE VARIATION OF SAID FLOW MEASUREMENT WITH RESPECT TO TIME.
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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) | 1969-06-06 | 1969-12-06 | 1970-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-06 | 1973-12-06 | 1974-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-06 | 1977-12-06 | 1978-06-07 | $7700.00 | Window Closed / Lapsed |