MY8600330A
(en )
1986-12-31
Monitoring the flow of drilling fluid in a wellbore
AU2451088A
(en )
1989-06-15
Cementing oil and gas wells using converted drilling fluid
GB2102475B
(en )
1984-12-12
Down-hole well drilling fluid motor and telemetry system
NO170639C
(en )
1992-11-11
Separating fluid compatible with drilling mud and cement slurry, and using the fluid
GB8518104D0
(en )
1985-08-21
Drill pipe joint
NO178902C
(en )
1996-06-26
Pipe coupling and method for interconnecting drill pipes
SG128992G
(en )
1993-03-12
Well drilling fluid and method of drilling employing said fluid
GB2219613B
(en )
1992-09-16
Oil well rig with pipe handling apparatus
GB2177218B
(en )
1989-07-19
Monitoring fluid circulation conditions in well drilling operations
GB2090888B
(en )
1984-10-10
Aqueous drilling and packer fluids
AU577209B2
(en )
1988-09-15
Method of drilling a borehole using two separate fluids
GB2155974B
(en )
1987-03-25
Pipe carousel for well-drilling rig
GB8515078D0
(en )
1985-07-17
Drilling rig
PL255406A1
(en )
1986-03-11
Drill pipe string with bolted together drill pipes and aqueous drilling fluid
GB2156256B
(en )
1986-05-29
Power tong for the connection of drilling pipes
GB2097838B
(en )
1984-09-26
Offshore drilling of large diameter holes in rock formations
GB8829843D0
(en )
1989-02-15
Method of placing a pipe string in a borehole and pipe section for use in the method
ZA844795B
(en )
1985-03-27
Borehole drilling rig and method
GB8513148D0
(en )
1985-06-26
Drilling rig & pipework
PL250065A2
(en )
1985-04-09
Borehole pipe string union piece
PL262657A1
(en )
1988-08-04
Drilling rig for core drilling with drilling fluid under explosive conditions
GB8526389D0
(en )
1985-11-27
Offshore drilling rigs
GB8719246D0
(en )
1987-09-23
Pipeline drilling rig
IE851253L
(en )
1985-11-21
Aqueous drilling fluid
JPS57205640A
(en )
1982-12-16
Method of drilling side pipe section of existing buried pipe