GB2216926B
(en )
1992-08-12
Drilling method and apparatus
GB8906018D0
(en )
1989-04-26
Borehole logging method and apparatus
EP0339659A3
(en )
1990-10-31
Method and apparatus for controlling drilling operation
GB2220688B
(en )
1992-01-22
Method and apparatus for gravel packing
EP0288237A3
(en )
1990-05-02
Method and apparatus for perforating a gun
GB8902717D0
(en )
1989-03-30
A boring apparatus
GB2227574B
(en )
1993-04-07
Method and apparatus for logging a borehole
GB2213517B
(en )
1992-01-15
Method and apparatus for manipulating well bore liner
ZA902595B
(en )
1991-01-30
A method and an arangement for controlling a rock drilling apparatus
GB8924083D0
(en )
1989-12-13
Rock drilling apparatus and method
EP0347253A3
(en )
1990-10-31
Method and apparatus for centering a gemstone
GB2152982B
(en )
1987-05-28
Method and apparatus for installing packers in a well
ZA888410B
(en )
1989-08-30
Drill hole filling method and apparatus
AU2652188A
(en )
1989-07-27
Method and apparatus for perforating a well
EP0448397A3
(en )
1992-09-02
Method and apparatus for drilling a highly angulated wellbore
AU6402590A
(en )
1991-04-28
Method and apparatus for drilling a tunnel
ZA897627B
(en )
1991-09-25
Method and apparatus for effecting a biogeaction
ZA902594B
(en )
1991-01-30
A rock drilling apparatus
GB2194316B
(en )
1990-03-28
Method and apparatus for firing borehole perforating apparatus
EP0428391A3
(en )
1992-08-05
Method and apparatus for beautificating drawings
AU6427090A
(en )
1991-04-28
Method and apparatus for drilling a tunnel
EP0298537A3
(en )
1989-04-12
Device and method for underreaming a borehole
ZA9111B
(en )
1991-10-30
A method and apparatus for quarrying rock
GB2280212B
(en )
1996-07-17
A quarrying process and apparatus
GB8912021D0
(en )
1989-07-12
Improved method and apparatus for borehole drilling