DE3461994D1
(en )
1987-02-19
Drilling tool and method of making it
GB2233577B
(en )
1993-05-12
Method of separating oil,water,sand,and gas from produced fluids
GB2221940B
(en )
1992-08-05
Well drilling fluid and method of drilling employing said fluid
PT79343B
(en )
1986-07-22
Apparatus and method for drilling a gas or oil well or any similar well and for treating the drilling mud
DE3480271D1
(en )
1989-11-30
Automatic traversing drilling unit and method of using
AU3108684A
(en )
1985-02-07
Methods and apparatus for recovery of hydrocarbons from underground water tables
GB9311133D0
(en )
1993-08-18
Method for treating drill cuttings during oil and gas drilling
EP0264446A4
(en )
1988-08-17
Joint for oil well pipes and method of manufacturing same.
GB2137353B
(en )
1986-09-24
Method and apparatus for locating the stuck point of a pipe in a borehole
DE3169492D1
(en )
1985-04-25
Method and apparatus for determining the stuck point of drill pipes in a borehole
GB2218739B
(en )
1991-12-04
Method and apparatus for the recovery of formation fluids subterranean well bore
AU5415990A
(en )
1990-10-09
Method of locating oil and gas horizons using a wellbore heat flow log
GB2139938B
(en )
1987-02-04
Improvements in or relating to methods and apparatus for pipe replacement and boring
GB2142679B
(en )
1986-07-23
Method and apparatus for borehole fluid influx detection
PT78741B
(en )
1986-07-11
Method and system for producing natural gas from offshore wells
GB8729794D0
(en )
1988-02-03
Method for detecting drilling fluid in annulus of cased wellbore
GB2152562B
(en )
1986-04-09
Apparatus and method for transferring drill pipe and other tubulars
PL255473A1
(en )
1987-04-21
Method of and drill pipe string for seating perforated filtering pipes in bore-holes
GB2142680B
(en )
1986-12-17
Borehole drilling rig and method
GB8829843D0
(en )
1989-02-15
Method of placing a pipe string in a borehole and pipe section for use in the method
PL248103A1
(en )
1985-12-17
Deep-seated pipe reducer and method of sealing it in mining bore-hole pipe string
BG48288A1
(en )
1991-01-15
Method for cleasning of water and soil from oil pollution
GB2114628B
(en )
1984-10-03
Offshore drilling of large diameter holes in rock formations
CS8700144A2
(en )
1991-09-15
Pipe line of structure for anchor and/or liquid passage formation in rock
PL256351A1
(en )
1987-06-29
Method of encasing bore-holes in particular large-diameter ones and pipe segment therefor