DOWNHOLE FRICTION REDUCTION SYSTEMS HAVING A FLEXIBLE AGITATOR

An agitator deployable in a wellbore includes a housing, a valve disposed in the housing and including a first valve body and a second valve body permitted to rotate relative to the first valve body, a first valve adapter coupled to the housing and which includes a first receptacle which receives at...

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Bibliographische Detailangaben
Hauptverfasser:	Trinh, Khoi, Gilleylen, Russell
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:	An agitator deployable in a wellbore includes a housing, a valve disposed in the housing and including a first valve body and a second valve body permitted to rotate relative to the first valve body, a first valve adapter coupled to the housing and which includes a first receptacle which receives at least a portion of the first valve body, wherein the first receptacle includes a cylindrical inner surface and an annular shoulder projecting radially inwards from the cylindrical inner surface, and a flexible valve seat positioned in the first receptacle of the first valve adapter between the first valve body and the first valve adapter, wherein the flexible valve seat has a cylindrical portion and an annular shoulder extending radially inwards from the cylindrical portion.