US3343604A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and method of running multiple tubing strings
Assignee: Acme Tool Inc
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Filing: 1965-10-22
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Granted: 1967-09-26
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Expires: 1985-10-22
Abstract
No abstract record available.
Inventors
- 👤 William D Werner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:52
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/02; E21B43/10; E21B33/00; E21B33/02; E21B33/03; E21B33/04; E21B33/047
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
174 words
A METHOD OF MAINTAINING A WELL EQUIPPED WITH A CASING AND A TUBING HEAD UNDER PRESSURE CONTROL WHILE PARALLEL TUBING STRINGS ARE BEING RUN, COMPRISING: RUNNING A FIRST TUBING STRING INTO SAID WELL THROUGH A BLOWOUT PREVENTER AND A CONNECTOR SPOOL COAXIALLY CONNECTED WITH SAID TUBING HEAD; LANDING SAID FIRST TUBING STRING IN SAID WELL BY CONNECTING SAID FIRST TUBING STRING TO A FIRST OPENING OF A MULTIPLE OPENING HANGER MEANS IN THE TUBING HEAD; TEMPORARILY PLUGGING SAID FIRST TUBING STRING; HORIZONTALLY ROTATING SAID BLOWOUT PREVENTER ABOUT THE VERTICAL AXIS OF SAID CASING AND SAID TUBING HEAD SO THAT THE OPENING IS ALIGNED WITH A SECOND OPENING IN SAID MULTIPLE OPENING HANGER MEANS; RUNNING A SECOND TUBING STRING INTO SAID WELL THROUGH SAID BLOWOUT PREVENTER, SAID CONNECTOR SPOOL AND SAID SECOND OPENING; LANDING SAID SECOND TUBING STRING IN SAID WELL BY CONNECTING SAID SECOND TUBING STRING TO THE SECOND OPENING IN SAID TUBING HANGER MEANS; TEMPORARILY PLUGGING SAID SECOND TUBING STRING; AND REMOVING SAID BLOWOUT PREVENTER AND SAID CONNECTOR SPOOL FROM SAID TUBING HEAD.
Claim 2
Independent Claim
174 words
A METHOD OF MAINTAINING A WELL EQUIPPED WITH A CASING AND A TUBING HEAD UNDER PRESSURE CONTROL WHILE PARALLEL TUBING STRINGS ARE BEING RUN, COMPRISING: RUNNING A FIRST TUBING STRING INTO SAID WELL THROUGH A BLOWOUT PREVENTER AND A CONNECTOR SPOOL COAXIALLY CONNECTED WITH SAID TUBING HEAD; LANDING SAID FIRST TUBING STRING IN SAID WELL BY CONNECTING SAID FIRST TUBING STRING TO A FIRST OPENING OF A MULTIPLE OPENING HANGER MEANS IN THE TUBING HEAD; TEMPORARILY PLUGGING SAID FIRST TUBING STRING; HORIZONTALLY ROTATING SAID BLOWOUT PREVENTER ABOUT THE VERTICAL AXIS OF SAID CASING AND SAID TUBING HEAD SO THAT THE OPENING IS ALIGNED WITH A SECOND OPENING IN SAID MULTIPLE OPENING HANGER MEANS; RUNNING A SECOND TUBING STRING INTO SAID WELL THROUGH SAID BLOWOUT PREVENTER, SAID CONNECTOR SPOOL AND SAID SECOND OPENING; LANDING SAID SECOND TUBING STRING IN SAID WELL BY CONNECTING SAID SECOND TUBING STRING TO THE SECOND OPENING IN SAID TUBING HANGER MEANS; TEMPORARILY PLUGGING SAID SECOND TUBING STRING; AND REMOVING SAID BLOWOUT PREVENTER AND SAID CONNECTOR SPOOL FROM SAID TUBING HEAD.
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) | 1970-09-25 | 1971-03-27 | 1971-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-25 | 1975-03-27 | 1975-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-25 | 1979-03-27 | 1979-09-26 | $7700.00 | Window Closed / Lapsed |