US3308887A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Well tester
Assignee: Schlumberger Well Surveying Corp
•
Filing: 1963-12-24
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Granted: 1967-03-14
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Expires: 1983-12-24
Abstract
No abstract record available.
Inventors
- 👤 Benjamin P Nutter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:39
CPC Classifications
E; E21; E21B; E21B49/00; E21B49/08; E21B49/087; E21B49/088; E21B49/081
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
A WELL TESTING TOOL COMPRISING: FIRST AND SECOND TELESCOPICALLY ARRANGED MEMBERS ADAPTED FOR COUPLING IN A TOOL STRING, SAID MEMBERS HAVING PASSAGEWAYS AND VALVE MEANS FOR SELECTIVELY PLACING SAID PASSAGEWAYS IN COMMUNICATION, MEANS SECURING SAID MEMBERS TO ONE ANOTHER, AT LEAST ONE ABUTMENT MEANS MOUNTED ON ONE OF SAID MEMBERS FOR ROTATION RELATIVE TO BOTH OF SAID MEMBERS, AT LEAST ONE ABUTMENT MEANS MOUNTED ON THE OTHER OF SAID MEMBERS, AND INDEX MEANS INCLUDING CAM MEANS COOPERABLE BETWEEN SAID FIRST MENTIONED ABUTMENT MEANS AND ONE OF SAID MEMBERS FOR POSITIONING SAID ABUTMENT MEANS IN ENGAGEMENT IN ONE LONGITUDINAL POSITION OF SAID MEMBERS WHEREBY FORCES IN ONE DIRECTION CAN BE TRANSMITTED FROM ONE OF SAID MEMBERS TO THE OTHER THROUGH SAID ABUTMENT MEANS AND FOR ROTATING SAID FIRST MENTIONED ABUTMENT MEANS RELATIVE TO BOTH OF SAID MEMBERS IN RESPONSE TO LONGITUDINAL MOTION OF ONE OF SAID MEMBERS
Claim 2
Dependent Claim
146 words
A WELL TESTING TOOL COMPRISING: FIRST AND SECOND TELESCOPICALLY ARRANGED MEMBERS ADAPTED FOR COUPLING IN A TOOL STRING, SAID MEMBERS HAVING PASSAGEWAYS AND VALVE MEANS FOR SELECTIVELY PLACING SAID PASSAGEWAYS IN COMMUNICATION, MEANS SECURING SAID MEMBERS TO ONE ANOTHER, AT LEAST ONE ABUTMENT MEANS MOUNTED ON ONE OF SAID MEMBERS FOR ROTATION RELATIVE TO BOTH OF SAID MEMBERS, AT LEAST ONE ABUTMENT MEANS MOUNTED ON THE OTHER OF SAID MEMBERS, AND INDEX MEANS INCLUDING CAM MEANS COOPERABLE BETWEEN SAID FIRST MENTIONED ABUTMENT MEANS AND ONE OF SAID MEMBERS FOR POSITIONING SAID ABUTMENT MEANS IN ENGAGEMENT IN ONE LONGITUDINAL POSITION OF SAID MEMBERS WHEREBY FORCES IN ONE DIRECTION CAN BE TRANSMITTED FROM ONE OF SAID MEMBERS TO THE OTHER THROUGH SAID ABUTMENT MEANS AND FOR ROTATING SAID FIRST MENTIONED ABUTMENT MEANS RELATIVE TO BOTH OF SAID MEMBERS IN RESPONSE TO LONGITUDINAL MOTION OF ONE OF SAID MEMBERS
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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 |