Wellhead sealing structure of mixed liquid conveying pipe and thermal oil production pump lower thin mixing system

The utility model relates to a wellhead sealing structure of a mixed liquid conveying pipe and a thermal oil production pump lower thin oil mixing system. The wellhead sealing structure of the mixed liquid conveying pipe comprises a wellhead sealing flange and an elastic sealing piece used for being...

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Hauptverfasser: YANG ZHANPENG, TANG JIA, WANG HAIJUAN, CHAI XIQIONG, MA HAI, MA LIJUAN, YANG JUNHU, XUE YANG
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creator YANG ZHANPENG
TANG JIA
WANG HAIJUAN
CHAI XIQIONG
MA HAI
MA LIJUAN
YANG JUNHU
XUE YANG
description The utility model relates to a wellhead sealing structure of a mixed liquid conveying pipe and a thermal oil production pump lower thin oil mixing system. The wellhead sealing structure of the mixed liquid conveying pipe comprises a wellhead sealing flange and an elastic sealing piece used for being arranged on the mixed liquid conveying pipe of mixed liquid in a sleeving mode. The wellhead sealing flange is provided with an annular through hole allowing the mixed liquid conveying pipe to penetrate between the casing pipe and the oil pipe, a stopping structure matched with the elastic sealingpiece in the axial direction in a stopping mode is arranged in the through hole, and a pressing cap used for abutting against the elastic sealing piece to achieve sealing between the mixed liquid conveying pipe and the through hole is fixed in the through hole. According to the wellhead sealing structure of the mixed liquid conveying pipe, the mixed liquid conveying pipe can penetrate through thewellhead sealing flange to
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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
title Wellhead sealing structure of mixed liquid conveying pipe and thermal oil production pump lower thin mixing system
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