ACTIVE MUD VALVE SYSTEM

A DOWNHOLE TOOL PUMPING APPARATUS COMPRISING A BODY (510) AND AN ACTIVE VALVE BLOCK. THE BODY (510) COMPRISES A CAVITY HOUSING A RECIPROCATING PISTON (518) DEFINING FIRST AND SECOND CHAMBERS (532A.B) WITHIN THE CAVITY. THE ACTIVE VALVE BLOCK COMPRISES A PLURALITY OF ACTIVE VALVES (AV1-AV4), WHEREIN...

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Bibliographische Detailangaben
Hauptverfasser:	GRANT, BILL, MILKOVISCH, MARK, BRENNAN, WILLIAM E
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 DOWNHOLE TOOL PUMPING APPARATUS COMPRISING A BODY (510) AND AN ACTIVE VALVE BLOCK. THE BODY (510) COMPRISES A CAVITY HOUSING A RECIPROCATING PISTON (518) DEFINING FIRST AND SECOND CHAMBERS (532A.B) WITHIN THE CAVITY. THE ACTIVE VALVE BLOCK COMPRISES A PLURALITY OF ACTIVE VALVES (AV1-AV4), WHEREIN THE PLURALITY OF ACTIVE VALVES (AV1-AV4) INCLUDES A FIRST ACTIVE VALVE (AV1) FLUIDLY CONNECTED TO THE FIRST CHAMBER (532A) OF THE BODY, THE PLURALITY OF ACTIVE VALVES (AV1-AV4) INCLUDES A SECOND ACTIVE VALVE (AV2) FLUIDLY CONNECTED TO THE SECOND CHAMBER (532B) OF THE BODY(510), AND EACH OF THE PLURALITY OF ACTIVE VALVES (AV1-AV4) IS CONFIGURED TO BE ACTIVELY ACTUATED BETWEEN OPEN AND CLOSED POSITIONS.