Method and system for inhibiting cement deposition in a jack and pull (JAP) expansion assembly

A hydraulically actuated Jack And Pull (JAP) tubular expansion tool string comprises: - an annular non-return valve arranged in the wall of the JAP string (7), which allows mud to flow from a surrounding annulus into the bore of the expansion tool string when the pressure in the bore of the tool str...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	Wubben, Antonius Leonardus Maria
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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