Method of dynamically killing a well blowout

Details Method of dynamically killing a well blowout Method of dynamically killing a well blowout

1978-10-30

1980-09-30

Novosad, Stephen J.

Wells

Processes

With indicating, testing, measuring or locating

166271, 166274, 169 69, 175 61, E21B 3500, E21B 4706

Patent

active

042249899

ABSTRACT:
A process for dynamically killing a well blowout by means of a relief well. A low density fluid is pumped down the relief well and into the blowout well at a rate to produce a frictional pressure loss in the blowout well which when added to the hydrostatic pressure in the blowout well is greater than the static formation pressure but less than the formation fracturing pressure. Injection of the low density fluid is continued until the blowout well goes from two-phase to single-phase flow. Thereafter, a high density fluid such as a drilling mud is pumped down the relief well and into the blowout well. This fluid produces a hydrostatic pressure in the blowout well which is greater than the static formation pressure.

REFERENCES:
patent: 1879160 (1932-09-01), Fowzer
patent: 3003557 (1961-10-01), Huitt et al.
patent: 3282355 (1966-11-01), Henderson
patent: 3285350 (1966-11-01), Henderson
patent: 3313361 (1967-04-01), McCullough
patent: 4133383 (1979-01-01), Ely
Lewis, "The Use of the Computer and Other Special Tools for Monitoring a Gas Well Blowout During the Kill Operation-Offshore Louisiana", SPE 6836, 1977.
Barnett, "A Logical Approach to Killing an Offshore Blowout, West Cameron 165 Well No. 3-Offshore Louisiana," SPE 6903, 1977.
Bruist,"A New Approach in Relief Well Drilling", Journal of Petroleum Technology, Jun. 1972, pp. 713-722.
Miller et al., "Reservoir Engineering Techniques Used to Predict Blowout Control During the Bay Marchand Fire", Journal of Petroleum Technology, Mar. 1972.

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