GC0000018A
(en )
2002-10-30
Method and tool for fracturing an underground formation.
GB2382609B
(en )
2004-08-04
Multi zone isolation tool and method for subterranean wells
GB2365463B
(en )
2005-02-16
Drilling method
GB2364723B
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2004-12-15
Drilling method
GB2384797B
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2004-09-08
Well drilling method and system
PL357778A1
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2004-07-26
Rock drill bit and method for its manufacturing
ZA200107069B
(en )
2002-04-24
Hardfaced drill bit structures and methods for making such structure.
GB2363810B
(en )
2003-03-26
Processes for treating subterranean formations
SG105497A1
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2004-08-27
Tunnel excavating machine and excavating method
AU2002226277A1
(en )
2002-06-11
Device and method for treating excavated material
ZA200101521B
(en )
2001-08-29
Bore hole grouting apparatus and method.
GB2383060B
(en )
2004-06-23
Fracture and wear-resistant rock bits
GB2358417B
(en )
2002-01-09
A method for construction and operation of subaqueous tunnels
ZA200107292B
(en )
2002-03-11
Rock drill.
ZA200105386B
(en )
2002-07-29
Drill and blast method for excavating or fracturing hard material.
AU2001240530A1
(en )
2001-08-14
Hard rock drilling device and method
ZA200207131B
(en )
2004-01-20
A method of excavating rock, and apparatus for practising this method.
GB2373523B
(en )
2004-03-31
Method and device for rotary well drilling
ZA200110090B
(en )
2002-10-23
Mining apparatus and method.
GB2362406B
(en )
2002-10-09
Toughness optimized insert for rock and hammer bits
ZA200307140B
(en )
2004-02-17
Method and apparatus for excavating soil material.
GB0113111D0
(en )
2001-07-18
Method for crushing carbide
ZA995355B
(en )
2001-02-20
Propelled roller-type drilling tool for excavating rock, minerals and the like.
AU2002300872A1
(en )
2003-06-12
Method And Apparatus For Excavating Rocks And Other Minerals
AU2002228226A1
(en )
2002-09-04
Mine excavation method and apparatus