Novel compound fisher

The utility model relates to a novel compound fisher, the main problem of solving current oil pipe class junk fishing tool function singleness. Including top connection 1, die nipple 2, urceolus 3, slider 4, the top connection is connected with the urceolus of lower extreme and the die nipple in the...

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Bibliographic Details
Main Author QIU FUYIN
Format Patent
LanguageEnglish
Published 29.07.2015
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 novel compound fisher, the main problem of solving current oil pipe class junk fishing tool function singleness. Including top connection 1, die nipple 2, urceolus 3, slider 4, the top connection is connected with the urceolus of lower extreme and the die nipple in the inner chamber of urceolus upper portion, has tapered thread on the die nipple outer wall, and the conicity of tapered thread be 1: 16, and the thread angle is 55 degrees, and the urceolus lower part has two, and to use central lines be axisymmetric slider, can the ordinary class of the oil pipe in the pit junk of salvage, can also salvage the irregular oil pipe junk of fracture, the range of application extensively, the convenience is operated, the reliability height can effectively improve the fishing process.
Bibliography:Application Number: CN20152215378U