Method for stabilizing clay minerals during oil exploitation by

Details Method for stabilizing clay minerals during oil exploitation by Method for stabilizing clay minerals during oil exploitation by

1988-04-28

1989-10-24

Taylor, Dennis L.

Hydraulic and earth engineering

Earth treatment or control

Chemical

1663051, 405258, E02D 312

Patent

active

048758094

ABSTRACT:
The present invention relates to a new process for stabilizing the clay minerals in reservoir rocks containing oil, in particular in rock comprising sandstones, sand, or marliceous sandstones as well as eliminating the electrostatic dispersion and swelling of the clays when steam injection is used for mineral oil exploitation. According to the process, cations capable of stabilizing the reservoir rock, having a hydrated diameter of 0.13 to 0.15 nm, preferably potassium and/or ammonium and/or zirconium ions are introduced in the form of a 0.01 to 5.0 N aqueous solution or in the form of a vapor mixture or a mixture of steam and gas(es).

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