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1966-09-20 |
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Method and apparatus for completing wells |
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1927-11-15 |
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Oil ahd water sepakatos for oil wells |
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1919-05-19 |
1920-12-14 |
Charles T Alexander |
Automatic mechanism for raising liquid
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1923-03-15 |
1924-04-01 |
Kelly William |
Well strainer
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1931-05-01 |
1933-06-27 |
Edward R Penick |
Choker
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1933-03-28 |
1934-12-18 |
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Float operated valve for oil wells
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1934-03-19 |
1937-08-10 |
Southwestern Flow Valve Corp |
Well flowing device
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1937-03-02 |
1938-06-07 |
George M Wells |
Method of and means for flowing oil wells
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1939-09-08 |
1940-09-10 |
Stanolind Oil & Gas Co |
Oil production
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1941-01-14 |
1941-09-30 |
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Well control device
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1944-03-14 |
1946-12-17 |
Earl G Spangler |
Air and water separator for removing air or water mixed with hydrocarbons, comprising a cartridge containing a wadding of wooden shavings
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1944-05-27 |
1945-12-25 |
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Oil well screen
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1955-01-18 |
1956-09-11 |
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1956-01-16 |
1957-10-22 |
Eugene D Tumlison |
Oil and gas separator for wells
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1961-12-11 |
1964-05-05 |
Baker Oil Tools Inc |
High temperature packer for well bores
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1964-11-12 |
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1965-02-03 |
1967-05-30 |
Servco Co |
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1965-08-16 |
1968-08-27 |
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Retrievable well packers
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1966-05-20 |
1968-12-31 |
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Tracer bullet, self-sealing
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1966-12-07 |
1968-05-28 |
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Sealing device for perforated well casing
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1967-06-30 |
1969-06-24 |
Kork Kelley |
Method and apparatus for effecting gas control in oil wells
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1970-10-13 |
1972-07-11 |
George L Thompson |
Retrievable density control valve
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1971-03-26 |
1973-06-19 |
Sun Oil Co |
Wellbore safety valve
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1973-01-29 |
1974-02-12 |
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Liquid gas separator
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1974-07-15 |
1976-04-20 |
Standard Oil Company (Indiana) |
Heat-sensitive subsurface safety valve
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1978-10-05 |
1979-11-06 |
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Low well yield control system and method
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1980-05-20 |
1981-09-08 |
Exxon Production Research Company |
Method of selective diversion in deviated wellbores using ball sealers
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1981-03-06 |
1985-02-05 |
Stant Inc. |
Fuel-water separator
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1981-08-06 |
1983-10-31 |
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Two-wall filter with perforated couplings
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1982-11-16 |
1985-01-01 |
Smith International, Inc. |
Automatic drilling process and apparatus
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Wahlco Inc., Santa Ana, Calif. |
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Method of selective reduction of the water permeability of subterranean formations
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1989-03-21 |
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Westinghouse Electric Corp. |
Extraction system with a pump having an elastic rebound inner tube
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1989-11-14 |
1991-03-12 |
Qed Environmental Systems, Inc. |
Floating layer recovery apparatus
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1990-02-16 |
1994-08-02 |
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1991-01-17 |
1995-10-10 |
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1993-01-07 |
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1992-02-19 |
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1998-10-30 |
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1992-09-28 |
1994-10-18 |
Halliburton Company |
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1994-03-22 |
1995-07-25 |
Halliburton Company |
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1994-06-15 |
2004-02-17 |
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1995-01-05 |
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1995-02-09 |
1997-01-28 |
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1995-10-30 |
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1996-07-08 |
1998-10-30 |
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1996-08-15 |
2000-05-30 |
Camco International Inc. |
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1996-12-31 |
1998-09-08 |
Halliburton Energy Services, Inc. |
Screened well drainage pipe structure with sealed, variable length labyrinth inlet flow control apparatus
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1997-03-12 |
1998-11-03 |
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Downhole system for well control and operation
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1999-04-26 |
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Method and apparatus for use in the production test of an expected permeable formation
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1997-05-06 |
2001-09-26 |
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1997-09-05 |
1999-03-16 |
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Well casing assembly with erosion protection for inner screen
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Schlumberger Technology Corporation |
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Downhole device for controlling fluid flow in a well
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Intelligent well system and method
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Flow control device
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Flow control apparatus for use in a wellbore
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Technique utilizing an insertion guide within a wellbore
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