Mechanical directional drilling jar with swivel means

Details Mechanical directional drilling jar with swivel means Mechanical directional drilling jar with swivel means

1986-06-03

1987-12-29

Novosad, Stephen J.

Boring or penetrating the earth

Below-ground impact members

Resiliently biased

175305, 166178, E21B 31107

Patent

active

047154543

ABSTRACT:
A drilling jar is disclosed. The jar has particular application in directional drilling operations and includes a swivel which allows the drilling jar to operate substantially independently of any right hand torque that becomes trapped in the drill string. The swivel includes a bearing cage that engages the polished stem of the drilling jar to the jay stem of the drilling jar. This bearing cage holds a number of bearings against the jay stem and the polished stem. The swivel allows the jay stem to rotate substantially independently of the polished stem. The drilling jar may further include splines formed onto the outer surface of the polished stem for transmitting torque from the polished stem to the barrel of the drilling jar without simultaneously transmitting torque from the polished stem to the jay stem. In addition, the drilling jar may include floating pistons that are circumferentially engaged to the polished stem and the washpipe that effect the upper and lower seals on the drilling jar and allow the internal pressure inside the tool to be equalized with the internal and external pressures of the drill string.

REFERENCES:
patent: Re3510 (1869-06-01), Bryan
patent: Re9072 (1880-02-01), McMullen
patent: Re15760 (1924-02-01), Kammerdiner
patent: Re23354 (1951-04-01), Storm
patent: Re28768 (1976-04-01), Mason
patent: 2915289 (1959-12-01), Lawrence
patent: 3145787 (1964-08-01), Brown
patent: 3208541 (1965-09-01), Lawrence
patent: 3233690 (1966-02-01), Lawrence
patent: 3316986 (1967-05-01), Orr
patent: 3343606 (1967-09-01), Dollison
patent: 3360060 (1967-12-01), Kinley et al.
patent: 3371730 (1968-03-01), Newman
patent: 3406770 (1968-10-01), Arterbury et al.
patent: 3539025 (1970-11-01), Sutliff et al.
patent: 3658140 (1972-04-01), Berryman
patent: 3684042 (1972-08-01), Graff
patent: 3685598 (1972-08-01), Nutter
patent: 3685599 (1972-08-01), Kisling, III
patent: 3716109 (1973-02-01), Griffith
patent: 3804185 (1974-04-01), Mason
patent: 3834471 (1974-09-01), Bottoms
patent: 3853187 (1974-12-01), Sutliff et al.
patent: 3860076 (1975-01-01), White
patent: 3880249 (1975-04-01), Anderson
patent: 3963081 (1976-06-01), Anderson et al.
patent: 3987858 (1976-10-01), Slator et al.
patent: 4004643 (1977-01-01), Newman
patent: 4023630 (1977-05-01), Perkin et al.
patent: 4036312 (1977-07-01), DeLuish
patent: 4098338 (1978-07-01), Perkins
patent: 4105082 (1978-08-01), Cheek
patent: 4113038 (1978-09-01), Clark
patent: 4124245 (1978-11-01), Kuenzel
patent: 4186807 (1980-02-01), Sutliff et al.
patent: 4333542 (1982-06-01), Taylor
patent: 4376468 (1983-03-01), Clark
patent: 4394883 (1983-07-01), Briscoe
patent: 4494615 (1985-01-01), Jones
patent: 4498548 (1985-02-01), Teng

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