One trip well drilling to total depth

One trip well drilling to total depth

A method for drilling to total depth, through a formation that requires isolation, without having to pull the drill pipe from the well and without using a surface lubricator comprises encountering a formation that requires isolation while drilling the well and delivering at least one isolation devic...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: ALAN B EMERSON, MARK K ADAM, MATTHEW J JABS, RICHARD M BENNETT
Format: Patent
Sprache:eng
Schlagworte:
EARTH DRILLING
EARTH DRILLING, e.g. DEEP DRILLING
FIXED CONSTRUCTIONS
MINING
OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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Beschreibung
Zusammenfassung:A method for drilling to total depth, through a formation that requires isolation, without having to pull the drill pipe from the well and without using a surface lubricator comprises encountering a formation that requires isolation while drilling the well and delivering at least one isolation device over drill pipe when the drill pipe is already in the wellbore. The formation is isolated with the isolation device without removal of the drill pipe from the well and clearance provided around the drill pipe while the drill string rotates The formation isolation ma be achieved by using a material that reverts to a former shape following a temperature stimulus.