US3309656A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Logging-while-drilling system
Assignee: Mobil Oil AS
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Filing: 1964-06-10
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Granted: 1967-03-14
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Expires: 1984-06-10
Abstract
No abstract record available.
Inventors
- 👤 John K Godbey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:32
CPC Classifications
E; E21; E21B; E21B47/00; E21B47/06; E21B47/12; E21B47/14; E21B47/18; E21B47/20; E21B47/22; E21B47/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
A METHOD FOR MEASURING A DOWNHOLE CONDITION IN A WELL CONTAINING A CONDUIT THROUGH WHICH IS CIRCULATED A FLUID, COMPRISING THE STEPS OF: (A) PASSING A PORTION OF THE CIRCULATING FLUID WITHIN THE CONDUIT IN THE WELL THROUGH AN ORIFICE TO PROVIDE A JET OF SUCH FLUID, (B) PERIODICALLY INTERRUPTING THE FLUID JET TO PROVIDE VIBRATORY IMPULSES IN SUCH FLUID TO PRODUCE A CONTINUOUS SONIC WAVE, (C) VARYING THE FREQUENCY OF INTERRUPTING THE FLUID JET IN RESPONSE TO A DOWNHOLE CONDITION BEING MEASURED TO FREQUENCY MODULATE THE SONIC WAVE, AND
Claim 2
Independent Claim
90 words
A METHOD FOR MEASURING A DOWNHOLE CONDITION IN A WELL CONTAINING A CONDUIT THROUGH WHICH IS CIRCULATED A FLUID, COMPRISING THE STEPS OF: (A) PASSING A PORTION OF THE CIRCULATING FLUID WITHIN THE CONDUIT IN THE WELL THROUGH AN ORIFICE TO PROVIDE A JET OF SUCH FLUID, (B) PERIODICALLY INTERRUPTING THE FLUID JET TO PROVIDE VIBRATORY IMPULSES IN SUCH FLUID TO PRODUCE A CONTINUOUS SONIC WAVE, (C) VARYING THE FREQUENCY OF INTERRUPTING THE FLUID JET IN RESPONSE TO A DOWNHOLE CONDITION BEING MEASURED TO FREQUENCY MODULATE THE SONIC WAVE, AND
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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) | 1970-03-13 | 1970-09-12 | 1971-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-13 | 1974-09-12 | 1975-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-13 | 1978-09-12 | 1979-03-14 | $7700.00 | Window Closed / Lapsed |