A check valve, associated downhole data collection system and inner core barrel assembly

Abstract A check valve (18) may be incorporated in an inner core barrel assembly (10). The check valve (18) has a valve body (20) defining a fluid flow path FP and provided with a valve seat (24). A valve member (22) is located in the valve body (20) and coupled to the valve body (20) by a coupling...

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Bibliographische Detailangaben
Hauptverfasser:	Price, Timothy Merle, Beach, Andrew Phillip, Kabzinsk, Richard, Gaylard, Nigel Warwick, Reilly, James Barry
Format:	Patent
Sprache:	eng
Schlagworte:	ACTUATING-FLOATS BLASTING COCKS DEVICES FOR VENTING OR AERATING EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING ENGINEERING ELEMENTS AND UNITS FIXED CONSTRUCTIONS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS TAPS THERMAL INSULATION IN GENERAL VALVES WEAPONS
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Beschreibung
Zusammenfassung:	Abstract A check valve (18) may be incorporated in an inner core barrel assembly (10). The check valve (18) has a valve body (20) defining a fluid flow path FP and provided with a valve seat (24). A valve member (22) is located in the valve body (20) and coupled to the valve body (20) by a coupling mechanism (37). The coupling mechanism (37) is arranged to allow the valve member (22) to move linearly in an axial direction relative to the valve body (20) onto and off of the valve seat (24) and maintain a fixed rotational relationship with the valve body (20). A data acquisition system (60) can be held in the valve member (22) and by virtue of the coupling mechanism be maintained rotationally fixed relative to the valve body an inner core tube (16) of an inner core barrel assembly (10).