Method of detecting a fluid influx which could lead to a blow-ou

Measuring and testing – Borehole or drilling – Downhole test

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73 3, E21B 4700

Patent

active

048400610

ABSTRACT:
This invention is intended for use in the process of drilling an oil well and has to do with a process for the detection of fluid influx which could lead to a blow-out. This process consists of measuring the inlet flow rate A of the drilling mud coming into the well and the outlet flow rate B of the drilling mud rising from the well in order to arrive at the quantity:

REFERENCES:
patent: 3726136 (1973-04-01), McKean et al.
patent: 3740739 (1973-06-01), Griffin, III et al.
patent: 3750766 (1973-08-01), Thompson et al.
patent: 3982432 (1976-09-01), Hammond
patent: 4188624 (1980-02-01), Hochsprung et al.
patent: 4253530 (1981-03-01), Sharki et al.
patent: 4527425 (1985-07-01), Stockton
patent: 4565086 (1986-01-01), Orr, Jr.
World Oil, vol. 199, No. 7, Dec. 1984, pp. 75, 76, 78, 80, 82, Gulf Publication Co., Houston, TX, U.S.; A. T. Bourgoyne, Jr., "Bubble Chopping: A New Way to Control Large, Deep Gas Kicks".

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