Method of connecting joints of drill pipe

Details Method of connecting joints of drill pipe Method of connecting joints of drill pipe

1983-10-03

1985-03-26

Moon, Charlie T.

Metal working

Method of mechanical manufacture

Assembling or joining

29526R, 10 1R, 285329, 285334, B23P 2500

Patent

active

045064326

ABSTRACT:
A method of connecting a joint of drill pipe for rotary earth drilling having tool joint members on each end with threaded connections for connecting the joint with other joints of drill pipe is shown. Nickel plating is applied to a portion of the threaded connection of at least one of the tool joint members. The threaded connection is then doped with a zinc base thread compound and the joint of drill pipe is made up by threadedly connecting the nickel plated threaded connection of one tool joint member with the threaded connection of a mating tool joint member. The nickel plated tool joint member when used with zinc base thread compound provides a connection with desirable frictional properties at elevated temperatures such as are encountered in geothermal wells.

REFERENCES:
patent: 1141151 (1915-06-01), Speller
patent: 2058841 (1936-10-01), Thomson
patent: 2084209 (1937-06-01), McDlroy
patent: 2173003 (1939-09-01), Place
patent: 2308066 (1943-01-01), Evans
patent: 2681815 (1954-06-01), McCarn
patent: 3294682 (1966-12-01), MacKinnon
patent: 3468563 (1969-09-01), Duret
patent: 3659882 (1972-05-01), Souresny

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