GB2221940B
(en )
1992-08-05
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IT8548198A0
(en )
1985-06-11
COMPOSITION FOR DRILLING FLUIDS COMPLETION AND PROCESSING OF OIL AND GAS WELLS
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(en )
1997-12-04
METHOD FOR UNDERGROUND EXCLUSION OF FLUIDS
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(en )
1999-10-11
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(en )
1995-12-22
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(en )
1994-07-29
Lead wedge for oil and gas wells
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(en )
1995-04-20
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(en )
1995-04-20
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(en )
1998-07-06
Method for increasing the stability of water-based fracturing fluids and method for fracturing an underground formation
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(en )
1993-07-12
PROCEDURE FOR EVALUATION OF FORMS AND DRILL CONDITIONS
AU2451088A
(en )
1989-06-15
Cementing oil and gas wells using converted drilling fluid
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(en )
1995-04-20
Method of drilling and cementing a well
IT1239356B
(en )
1993-10-20
APPARATUS AND METHOD FOR SEALING CLOSURE OF DRILLING WELLS
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(en )
1993-03-10
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(en )
1998-11-09
Method and suspension to improve the flow of a slurry
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(en )
1999-12-23
Method and riser for a gas or oil well
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(en )
1987-06-10
HIGH GASKET THREADED JOINT FOR PIPES OF WELLS FOR NATURAL GAS AND OIL
EP0731251A3
(en )
1996-12-18
System for storage and handling of drill rods for drilling rigs
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(en )
1994-01-17
Method and apparatus for measuring the erosion ability of drilling fluid deposits
DK0776442T3
(en )
1999-06-21
Fluid bed reactor and method of operation thereof
BR8200245A
(en )
1982-11-23
PROCESS FOR ANCHORING A DRILLING TOWER IN THE OPEN SEA AND TOWER FOR TEMPORARY EXPLORATION OF OIL WELLS AND GAS IN THE OPEN SEA
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(en )
1994-05-04
Pipe suspension device for oil and gas wells
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(en )
1991-12-04
Method and apparatus for the recovery of formation fluids subterranean well bore
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(en )
1990-05-24
PROCEDURE AND EQUIPMENT FOR DRILLING AND COMPLETION OF DEEP WATER OIL WELLS
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(en )
1999-06-23
Production logging of oil and gas wells