Patent US4199379A successfully refreshed from Google Patents.
Patent US4223737A successfully refreshed from Google Patents.
US4223737A
Expired / Lapsed
US
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Method for well operations
Assignee: Individual
•
Filing: 1979-03-26
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Granted: 1980-09-23
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Expires: 1999-03-26
Abstract
Abstract A method for handling pipe for drilling and well operations. The pieces of pipe to be used are connected together in a string above the surface of the medium, such as the earth or the seabed, into which they will be inserted. The pieces are connected so that the string lies in a substantially horizontal plane prior to insertion. The resulting string is then moved by a prime mover which moves in the horizontal plane. The string is moved into the medium at an angle near the horizontal. By employing suitable supports pre-assembled long length strings can be tested, inserted, and manipulated. Similarly, a complete string or large section thereof can be removed from a point of insertion such as a well bore without the necessity of disconnecting each separate member from the string. This method also accommodates the handling of single pieces of pipe.
Inventors
- 👤 Dale O'Reilly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:27
CPC Classifications
E; E21; E21B; E21B17/00; E21B17/01; E21B17/015; E21B19/00; E21B19/002; E21B19/14; E21B19/15; E21B33/00; E21B33/10; E21B33/13; E21B33/14; E21B7/00; E21B7/04; E21B7/043
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
191 words
A method for running a string of pipe into a wellbore having its mouth on the seafloor wherein the wellbore is full of drilling mud including the steps of securing a template over the mouth of the wellbore, connecting to the template one end of a riser that arcs from the sea surface to the template, connecting the other end of the riser on the surface to a mud return vessel, filling the wellbore to a desired level with cement, the cement displacing a proportionate amount of drilling mud upward positioning one end of the string of pipe movably in the mud return vessel, connecting the other end of the string to a prime mover on the surface, sealing the end of the string to be inserted into the wellbore by means of a plug to insure that the space enclosed by the string remains empty during insertion of the string, so that the insertion of the string displaces the cement upward in the wellbore, and moving the prime mover toward the mud return vessel thereby moving the string through the mud return vessel, through the riser and into the wellbore.
Claim 2
Independent Claim
191 words
A method for running a string of pipe into a wellbore having its mouth on the seafloor wherein the wellbore is full of drilling mud including the steps of securing a template over the mouth of the wellbore, connecting to the template one end of a riser that arcs from the sea surface to the template, connecting the other end of the riser on the surface to a mud return vessel, filling the wellbore to a desired level with cement, the cement displacing a proportionate amount of drilling mud upward positioning one end of the string of pipe movably in the mud return vessel, connecting the other end of the string to a prime mover on the surface, sealing the end of the string to be inserted into the wellbore by means of a plug to insure that the space enclosed by the string remains empty during insertion of the string, so that the insertion of the string displaces the cement upward in the wellbore, and moving the prime mover toward the mud return vessel thereby moving the string through the mud return vessel, through the riser and into the wellbore.
Claim 3
Dependent Claim
22 words
The method of claim 1 including also the step of testing the string of pipe prior to running it into the wellbore.
Claim 4
Independent Claim
232 words
A method for running a string of pipe into a wellbore having its mouth at the earth's surface, the wellbore extending downward at an angle slightly from the horizontal, and wherein the wellbore contains a quantity of drilling mud, the method including the steps of securing a template over the mouth of the wellbore, connecting to the template one end of a riser, connecting the other end of the riser to a mud return vessel, the riser arcing from the mud return vessel to the mouth of the wellbore so that the string can be inserted smoothly through the riser into the wellbore, filling the wellbore to a desired level with cement, the cement displacing a proportionate amount of the drilling mud upward, positioning one end of the string of pipe movably in the mud return vessel, connecting the other end of the string to a prime mover that is substantially aligned with the mud return vessel, sealing the end of the string to be inserted into the wellbore by means of a plug to insure that the space enclosed by the string remains empty during insertion of the string so that the insertion of the string displaces the cement upward in the wellbore, moving the string in the horizontal plane toward the mud return vessel by means of the prime mover thereby moving the string through the riser into the wellbore.
Claim 5
Independent Claim
232 words
A method for running a string of pipe into a wellbore having its mouth at the earth's surface, the wellbore extending downward at an angle slightly from the horizontal, and wherein the wellbore contains a quantity of drilling mud, the method including the steps of securing a template over the mouth of the wellbore, connecting to the template one end of a riser, connecting the other end of the riser to a mud return vessel, the riser arcing from the mud return vessel to the mouth of the wellbore so that the string can be inserted smoothly through the riser into the wellbore, filling the wellbore to a desired level with cement, the cement displacing a proportionate amount of the drilling mud upward, positioning one end of the string of pipe movably in the mud return vessel, connecting the other end of the string to a prime mover that is substantially aligned with the mud return vessel, sealing the end of the string to be inserted into the wellbore by means of a plug to insure that the space enclosed by the string remains empty during insertion of the string so that the insertion of the string displaces the cement upward in the wellbore, moving the string in the horizontal plane toward the mud return vessel by means of the prime mover thereby moving the string through the riser into the wellbore.
Claim 6
Dependent Claim
19 words
The method of claim 3 including the step of testing the string before it is run into the wellbore.
References Cited (Backward Citations)
US2565794A
Cited
US2644669A
Cited
US2783027A
Cited
US2988144A
Cited
US3346045A
Cited
US3523578A
Cited
US3720272A
Cited
US4003440A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-09-23 | 1984-03-24 | 1984-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-09-23 | 1988-03-24 | 1988-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-09-23 | 1992-03-24 | 1992-09-23 | $7700.00 | Window Closed / Lapsed |