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 10:25
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
References Cited (Backward Citations)
US2425869A
Cited
US2380520A
Cited
US2524031A
Cited
US3095534A
Cited
US3202899A
Cited
US3242410A
Cited
US3150307A
Cited
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 |