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2001-01-30
Method and apparatus for sealing the juncture between a vertical well and one or more horizontal wells
US5322127C1
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2001-02-06
Method and apparatus for sealing the juncture between a vertical well and one or more horizontal wells
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2000-03-06
A method of providing a seal between a gasket and a borehole wall
NO305718B1
(en )
1999-07-12
Method and apparatus for sealing the intersection point between a main borehole and a borehole
GB2243383B
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1994-10-26
Subsea wellhead apparatus
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1996-08-07
Abandonment of sub-sea wells
GB2320567B
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1998-08-05
Apparatus for investigating the properties of earth formations surrounding a borehole
SG52153A1
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1998-09-28
Subsea wellhead apparatus
EP0593122A3
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1994-06-29
Blow-out prevention device for shutting off an annulus between a drill column and a well wall
PL331349A1
(en )
1999-07-05
Method of and apparatus for sealing the space between a pipe and its tubular lining
AU9057691A
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1992-06-11
Packing assembly for oilfield equipment and method
GB2281578B
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1996-07-31
Offshore drilling apparatus
EP0468809A3
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1993-03-17
Method and apparatus for detecting location of a subterranean pipe
EP0448397A3
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1992-09-02
Method and apparatus for drilling a highly angulated wellbore
GB2255579B
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1994-11-16
Metal-to-metal wellhead seal for rough casing
GB2152561B
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1986-04-09
Handling apparatus for drill pipe and other tubulars
PL290968A1
(en )
1993-01-25
Apparatus for sealing annular space formed between bore-hole wall and pipe string
GB2262392B
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1996-02-28
An expansion seal for cable pipe
EP0686730A4
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1996-05-01
Ground boring device and method for constructing an underground wall using the same
GB2260552B
(en )
1995-01-11
Method and apparatus for drilling a subsea well
GB2275952B
(en )
1994-11-30
Subsea wellhead apparatus
GB2256019B
(en )
1995-01-11
Seal for pipes
PL312381A1
(en )
1996-04-15
Method of drilling and sealing the shot-holes
GB2284029B
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1997-04-09
Drill pipe
PL288008A1
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1992-06-01
Bore-hole pipe string