Milling shoe with drainage groove

The utility model relates to the technical field of washover shoes, in particular to a washover shoe with a drainage groove, which comprises a washover pipe body, a washover shoe body and a sleeve, a first external thread is arranged on the outer surface of the washover pipe body, and a first intern...

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Bibliographic Details
Main Author BI HAIYING
Format Patent
LanguageChinese
English
Published 22.03.2022
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 the technical field of washover shoes, in particular to a washover shoe with a drainage groove, which comprises a washover pipe body, a washover shoe body and a sleeve, a first external thread is arranged on the outer surface of the washover pipe body, and a first internal thread is arranged on the inner wall of the washover shoe body. The milling shoe has the advantages that the milling pipe body, the milling shoe body, the sleeve, the first external thread, the first internal thread, the second internal thread, the third internal thread, the connecting pipe fitting and the second external thread are arranged in a matched mode, so that connection between the milling pipe body and the milling shoe body is tighter; a threaded connection structure is additionally arranged between the washover pipe body and the washover shoe body, so that the phenomenon that the washover pipe body is separated from the washover shoe body in the working process is greatly avoided, and the effect of en
Bibliography:Application Number: CN202121697032U