Boring or penetrating the earth – With below-ground tool drive prime mover – Fluid rotary type
Patent
1988-02-22
1989-07-04
Novosad, Stephen J.
Boring or penetrating the earth
With below-ground tool drive prime mover
Fluid rotary type
175 61, 175321, 267125, 267137, 464 18, E21B 402
Patent
active
048441805
ABSTRACT:
A downhole drilling motor is disclosed in which an output shaft is allowed to translate in axial direction relative to the motor housing over a predetermined stroke. Fluid pressure of a drilling fluid pumped to a rotary drill bit driven by the motor may be used during operation of the motor to exert a predetermined axial force to the output shaft so as to control the axial force exerted to the bit during drilling.
REFERENCES:
patent: 2879032 (1959-03-01), Whittle
patent: 2937007 (1960-05-01), Whittle
patent: 2942851 (1960-06-01), Beck
patent: 3047079 (1962-07-01), Wepsala, Jr.
patent: 3949150 (1976-04-01), Mason et al.
patent: 3998443 (1976-12-01), Webb
patent: 4067405 (1978-01-01), Bassinger
patent: 4133516 (1979-01-01), Jurgens
patent: 4171025 (1979-10-01), Bassinger
patent: 4186569 (1979-02-01), Aumann
patent: 4223746 (1980-09-01), Tanguy et al.
patent: 4246765 (1981-01-01), Zabeik
patent: 4260030 (1981-04-01), Fox
patent: 4281726 (1981-08-01), Garrett
patent: 4303138 (1981-12-01), Bassinger
patent: 4331006 (1982-05-01), Bishop
patent: 4387885 (1983-06-01), Bishop et al.
patent: 4434863 (1984-03-01), Garrett
patent: 4439167 (1984-03-01), Bishop et al.
patent: 4465147 (1984-08-01), Feenstra et al.
patent: 4485879 (1984-12-01), Kamp et al.
patent: 4492276 (1985-01-01), Kamp
patent: 4552230 (1985-11-01), Anderson
patent: 4560014 (1985-12-01), Geczy
patent: 4657090 (1987-04-01), Geczy
patent: 4660656 (1987-04-01), Warren et al.
patent: 4721172 (1988-01-01), Brett et al.
"`Hi-Temp` Steel Spring Shock Sub.RTM. Vibration Dampener," from the 1976-77 Composite Catalog.RTM. of Oil Field Equipment & Services, pp. 2158-2162, published by World Oil.
Novosad Stephen J.
Shell Oil Company
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