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*
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1919-03-26 |
1926-01-19 |
Sullivan Machinery Co |
Method and apparatus for drilling holes
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US1524265A
(en)
*
|
1923-08-04 |
1925-01-27 |
Stephen T Lester |
Connecting device such as tap and die collar
|
US1615037A
(en)
*
|
1925-07-06 |
1927-01-18 |
Edward F Raymond |
Guide for side trackers
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US1636032A
(en)
*
|
1927-02-28 |
1927-07-19 |
Everett W Abbott |
Milling tool
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US1901453A
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*
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1929-11-01 |
1933-03-14 |
Laurence C Kelly |
Whipstock
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US1951638A
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*
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1933-01-09 |
1934-03-20 |
Clinton L Walker |
Deep well whipstock
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US2014805A
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*
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1933-05-29 |
1935-09-17 |
Frank J Hinderliter |
Apparatus for cutting through the side wall of a pipe
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US2065896A
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*
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1934-11-06 |
1936-12-29 |
Union Sulphur Company |
Removable straightening tool
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US2105721A
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*
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1935-06-04 |
1938-01-18 |
George J Barrett And Sosthene |
Whipstock
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*
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1935-11-20 |
1938-01-18 |
George J Barrett |
Well-boring apparatus
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US2100684A
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*
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1936-03-28 |
1937-11-30 |
Monroe W Carroll |
Well bridging, cementing, whipstock, and milling apparatus
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US2103622A
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*
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1936-07-25 |
1937-12-28 |
Robert B Kinzbach |
Side tracking apparatus
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*
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1937-05-19 |
1938-02-15 |
Odie B Trotter |
Whip stock
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*
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1937-08-06 |
1939-05-16 |
Kinzbach Frank |
Whip stock
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*
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1937-10-28 |
1940-04-09 |
Eastman Oil Well Survey Corp O |
Winged whipstock
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1939-10-09 |
1940-10-08 |
Joseph E Sinclair |
Means for cutting windows in well casings
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*
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1940-08-30 |
1944-11-14 |
A 1 Bit And Tool Company Ltd |
Side tracking apparatus
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1940-11-07 |
1942-04-28 |
Continental Oil Co |
Combined bridge plug and drilable whipstock
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*
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1941-11-05 |
1943-10-12 |
Sperry Sun Well Surveying Co |
Whipstock
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1942-06-11 |
1945-10-09 |
Reed Roller Bit Co |
Side hole coring device
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1943-05-06 |
1946-06-11 |
Jr Edward B Williams |
Side wall core barrel
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1945-08-10 |
1950-05-23 |
Donovan B Grable |
Well plugging and whipstocking
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1948-03-05 |
1951-05-22 |
Eastman Oil Well Survey Co |
Directional drilling apparatus
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1951-02-23 |
1956-07-24 |
Honeywell Regulator Co |
Automatic pilots
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1953-03-10 |
1956-11-13 |
Stephen A Neal |
Circulating and rotating retrievable whipstock
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1953-08-10 |
1957-09-24 |
J E Hill |
Directional window cutter for whipstocks
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1956-09-24 |
1959-05-05 |
Driltrol |
Drilling and deflecting tool
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1957-06-10 |
1959-04-14 |
J E Hill |
Directional window cutter for whipstocks
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1957-07-26 |
1961-04-04 |
Robert P Hanna |
Whip stock locking and releasing apparatus
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1960-10-07 |
1963-06-25 |
Bowen Itco Inc |
Whipstock and anchoring mechanism therefor
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GB1025092A
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1962-02-12 |
1966-04-06 |
Svenska Diamantbergborrnings A |
Improvements relating to the deflecting of drill holes in diamond drilling
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1969-05-05 |
1971-03-16 |
Glenn D Johnson |
Constant strain jar
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1971-02-17 |
1973-05-15 |
F Chelette |
Apparatus for attaching to the outer of a plurality of tubular members and of cutting through, valving closed, and diverting material flow from all of the tubular members
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1974-05-22 |
1975-09-30 |
Standard Oil Co |
Sidetracking tool
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1974-06-13 |
1975-03-25 |
Gils Adrianus W Van |
Method for retrieving a severed pipe string from a well
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FR2332413A1
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1975-11-19 |
1977-06-17 |
Flopetrol Ste Auxil Prod Petro |
Dispositif d'ancrage pour appareil de puits et outil de pose de ce dispositif
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1977-06-22 |
1981-05-12 |
Christensen, Inc. |
Well casing window mill
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1978-03-02 |
1980-01-08 |
Burton/Hawks Inc. |
Whipstock and method for directional well drilling
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1980-06-10 |
1983-12-13 |
Holbert Don R |
Directional drilling method and apparatus
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1981-05-29 |
1983-08-09 |
Masco Corporation |
Whipstock setting method and apparatus
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1981-07-10 |
1983-11-15 |
Rehm William A |
Triple branch completion with separate drilling and completion templates
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1985-08-02 |
1988-03-29 |
Atlantic Richfield Company |
Submudline drivepipe whipstock method and apparatus
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1985-08-19 |
1987-09-29 |
Smith International |
Dual string packer mill
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1986-01-06 |
1992-09-29 |
Baker Hughes Incorporated |
Milling tool and method for milling multiple casing strings
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1988-04-15 |
1994-12-20 |
Baker Hughes Incorporated |
Downhole milling tool
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1986-01-06 |
1992-02-11 |
Baker Hughes Incorporated |
Tapered cutting tool for reaming tubular members in well bore
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1986-01-06 |
1989-12-19 |
Tri-State Oil Tool Industries, Inc. |
Cutting tool for cutting well casing
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1991-05-14 |
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Milling tool for cutting well casing
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Milling tool for cutting well casing
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1991-08-13 |
Tri-State Oil Tools, Inc. |
Cutting tool for removing man-made members from well bore
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1986-01-06 |
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Cutting tool for removing materials from well bore
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Cutting tool for cutting well casing
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1989-02-28 |
Atlantic Richfield Company |
System and method for providing multiple wells from a single wellbore
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1989-07-18 |
Lindsey Completion Systems, Inc. |
Rotatable liner hanger
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1991-07-30 |
Masx Energy Service Group, Inc. |
Whipstock starter mill with pressure drop tattletale
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1989-12-22 |
1991-07-11 |
Eastman Christensen Co |
Vorrichtung zum bohren einer neben- oder ablenkbohrung eines insbesondere verrohrten bohrlochs
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1990-02-10 |
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Insert type window mill
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Casing mill and method
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1995-12-12 |
Baker Hughes Incorporated |
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Downhole equipment, tools and assembly procedures for the drilling, tie-in and completion of vertical cased oil wells connected to liner-equipped multiple drainholes
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Wellbore tool setting system
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Mill valve
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Milling tool and operations
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Whipstock system
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1995-06-13 |
Minnesota Mining And Manufacturing Company |
Connector strain relief for optical fiber
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1995-03-21 |
Baker Hughes Incorporated |
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1995-06-20 |
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1996-06-21 |
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Whipstock starter mill assembly
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Whipstock and staged sidetrack mill
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