US3239666A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of hydrocarbons from multizone wells
Assignee: Pan American Petroleum Corp
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Filing: 1962-10-17
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Granted: 1966-03-08
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Expires: 1982-10-17
Abstract
No abstract record available.
Inventors
- 👤 George R Newton
- 👤 William M Sackett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:44
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/26; G01N33/28; G01N33/2823; E; E21; E21B; E21B47/00; E21B47/10; E21B47/11
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
A METHOD OF MEASURING PRODUCTION OF HYDROCARBHONS FROM TWO ZONES OF A MULTIPLE-ZONE WELL WHICH COMPRISES THE STEPS OF OBTAINING A SAMPLE OF THE HYDROCARBONS PRODUCED BY EACH OF SAID TWO ZONES UNCONTAMINATED BY HYDROCARBONS PRODUCED BY THE OTHER, ANALYZING WITH A MASS SPECTROMETER EACH OF SAID SAMPLES FOR THE ISOTOPE RATIO OF AN ELEMENT COMMON TO SAID TWO ZONE, SIMULTANEOUSLY PRODUCING HYDROCARBONS FROM TWO ZONES INTO A COMMINGLED STREAM, OBTAINING A SAMPLE OF SID COMMINGLED STREAM, ANALYZING WITH A MASS SPECTROMETER SAID COMMINGLED SAMPLE FOR THE ISOTOPE RATIO OFSAID COMMON ELEMENT THEREIN, AND UTILIZING THE RESULTS OF SAID ANALYZING STEPS TO CALCULATE THE PERCENTAGES OF HYDROCARBONS PRODUCED BY EACH OF SAID ZONES INTO SAID COMMINGLED STREAM.
Claim 2
Independent Claim
117 words
A METHOD OF MEASURING PRODUCTION OF HYDROCARBHONS FROM TWO ZONES OF A MULTIPLE-ZONE WELL WHICH COMPRISES THE STEPS OF OBTAINING A SAMPLE OF THE HYDROCARBONS PRODUCED BY EACH OF SAID TWO ZONES UNCONTAMINATED BY HYDROCARBONS PRODUCED BY THE OTHER, ANALYZING WITH A MASS SPECTROMETER EACH OF SAID SAMPLES FOR THE ISOTOPE RATIO OF AN ELEMENT COMMON TO SAID TWO ZONE, SIMULTANEOUSLY PRODUCING HYDROCARBONS FROM TWO ZONES INTO A COMMINGLED STREAM, OBTAINING A SAMPLE OF SID COMMINGLED STREAM, ANALYZING WITH A MASS SPECTROMETER SAID COMMINGLED SAMPLE FOR THE ISOTOPE RATIO OFSAID COMMON ELEMENT THEREIN, AND UTILIZING THE RESULTS OF SAID ANALYZING STEPS TO CALCULATE THE PERCENTAGES OF HYDROCARBONS PRODUCED BY EACH OF SAID ZONES INTO SAID COMMINGLED STREAM.
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) | 1969-03-07 | 1969-09-06 | 1970-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-07 | 1973-09-06 | 1974-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-07 | 1977-09-06 | 1978-03-08 | $7700.00 | Window Closed / Lapsed |