Process for preventing water inflow in an oil- and/or gas-produc

Details Process for preventing water inflow in an oil- and/or gas-produc Process for preventing water inflow in an oil- and/or gas-produc

1986-08-29

1988-01-12

Suchfield, George A.

Wells

Processes

Cementing, plugging or consolidating

166246, E21B 33138

Patent

active

047184914

ABSTRACT:
The invention relates to a process for reducing or completely stopping a water inflow from a formation towards a producing well.
The process according to the invention, using the injection of an aqueous dispersion of hydrosoluble polysaccharide in this producing well, blocks the water inflow without however decreasing the oil and gas flow towards this well.
This process is particularly of high interest when the produced water is hot, e.g. at a temperature from 70.degree. to 130.degree. C., and/or salted, e.g. of a salt content of at least 30 g/l.
This process is used for oil and/or gas production.

REFERENCES:
patent: 3386514 (1968-06-01), Weber
patent: 3779315 (1973-12-01), Boneau
patent: 3844348 (1974-10-01), Stratton
patent: 4039029 (1977-08-01), Gall
patent: 4165257 (1979-08-01), Stokke
patent: 4466889 (1984-08-01), Miller et al.
patent: 4574887 (1986-03-01), Abdo
patent: 4599180 (1986-07-01), Vio et al.
patent: 4658898 (1987-04-01), Paul et al.

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