Well washing valve

The utility model relates to a well washing valve, belonging to shaft dynamic equipment of an oil pumping well. The well washing valve has the technical proposal that a valve bottom and a well washing piston are arranged on the upper part in a main body. The upper part of the well washing piston and...

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Bibliographic Details
Main Authors FUSHAN LI, ENYUAN GAO
Format Patent
LanguageEnglish
Published 03.02.1999
Edition6
Subjects
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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Summary:The utility model relates to a well washing valve, belonging to shaft dynamic equipment of an oil pumping well. The well washing valve has the technical proposal that a valve bottom and a well washing piston are arranged on the upper part in a main body. The upper part of the well washing piston and the main body form a cavity. The lower part of the well washing piston is connected with a bottom valve. A magnetic core overcurrent device and a bottom valve seat are assembled in the bottom valve. A valve ball is arranged between the magnetic core overcurrent device and the bottom valve seat. An adjustable ring is arranged on the lower part of the main body. A spring is arranged between the well washing piston and the adjustable ring. The well washing valve is matched with a downhole packer to be used. The production state of an oil pumping well is improved, the output of the oil pumping well is enhanced; meanwhile, the well washing situation of the oil pumping well is improved, and a well washing period is extended.
Bibliography:Application Number: CN1997224366U