Boring or penetrating the earth – With signaling – indicating – testing or measuring – Measuring or indicating drilling fluid rate of flow
Patent
1980-04-28
1982-01-12
Novosad, Stephen J.
Boring or penetrating the earth
With signaling, indicating, testing or measuring
Measuring or indicating drilling fluid rate of flow
175 65, 175207, 175317, E21B 2108, E21B 2110
Patent
active
043100589
ABSTRACT:
A method of removing fluids entering into a well bore from a well formation while the well is being drilled, such as gas, in which the gas bubble is chopped into small bubbles by mixing the gas with drilling mud and pumping the mixed gas and drilling mud upwardly through the drill string-bore hole annulus and removing it from the well.
REFERENCES:
patent: 3809170 (1974-05-01), Ilfrey et al.
patent: 3908769 (1975-09-01), Schuyf et al.
patent: 4076083 (1978-02-01), Sizer
Bell, "High-Pressure Drilling and Blowout Prevention", The Oil and Gas Journal, Oct. 14, 1957, pp. 139, 141-151.
Novosad Stephen J.
Otis Engineering Corporation
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