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GB0014104D0
|
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A circulating sub apparatus and method
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US5346178A
|
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Pressure equalized flow control valve
|
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GB9214159D0
|
|
An actuator
|
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US5246075A
|
|
Guide post latching mechanism
|
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US5149143A
|
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Connector assembly with detachable sleeve
|
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CA2025682A1
|
|
Casing suspension system
|
|
US5038871A
|
|
Apparatus for supporting a direct drive drilling unit in a position offset from the centerline of a well
|
|
GB9007253D0
|
|
Valve sealing system
|
|
GB9001884D0
|
|
Flowline connection system
|
|
US5062667A
|
|
Connection seal
|
|
US5051007A
|
|
Lubrication of a centrifugal pump bearing
|
|
GB8919012D0
|
|
A connector adapted for use undersea
|
|
GB8916743D0
|
|
Fluid-operated actuator
|
|
GB8916744D0
|
|
A fluid operated actuator
|
|
US4981180A
|
|
Positive lock of a drive assembly
|
|
US4951707A
|
|
Seal for a pump valve
|
|
US4922957A
|
|
Valve with replaceable seal element
|
|
GB8901042D0
|
|
A hanger
|
|
US4809792A
|
|
Support system for a top driven drilling unit
|
|
US4877093A
|
|
Spring actuated power swivel support rollers
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