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1994-07-29
Lead wedge for oil and gas wells
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1994-07-27
Cementing systems for oil wells
AU2451088A
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1989-06-15
Cementing oil and gas wells using converted drilling fluid
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1991-08-27
PROCEDURE FOR AA CEMENTING OIL AND GAS BURNER.
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1992-06-11
Packing assembly for oilfield equipment and method
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1991-11-27
Drill pipe tubing and casing protectors
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1991-11-07
Well bore packing apparatus and methods of drilling thereof
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1983-08-24
Suspending system for oil and gas wells
JO1678B1
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1992-08-09
Device for extonquishing oil well fires, and protiction of new oil wells
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1986-07-28
OIL DRILLING EQUIPMENT AND USE OF THIS.
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1989-09-13
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1991-06-05
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1997-02-12
Logging plug for use in oil,gas and other wells
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1995-05-04
PROCEDURE OF BIDIRECTIONAL DRILLING AND DRILLING WITH EXPLOSIVE AND EQUIPMENT FOR DRILLING LONE HOLES USED FOR THE SAME.
RU2001246C1
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1993-10-15
Device for extinguishing oil well fires
GB9106434D0
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1991-05-15
Device for extinguishing oil wells
CS110791A3
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1992-11-18
Method of burning oil wells extinguishing
CS63791A3
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1992-10-14
Method of extinguishing burning oil wells
PL289639A1
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1992-10-05
Method of extinguishing fire on oil wells
GB9110237D0
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1991-07-03
Apparatus for and method of extinguishing oil well fires and plugging the wells
NO870227D0
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1987-01-20
EQUIPMENT FOR DRILLING OIL AND GAS BURNS.
CS130791A3
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1992-11-18
Method of oil well fire-fighting
GB9108740D0
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1991-06-12
Oil well fire extinguisher
CS84791A3
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1992-10-14
Method of extinguishing fire of oil and gas wells, optionally other firesand apparatus for making the same
PL290304A1
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1992-11-30
Method of extinguishing oil well fires