Wells – Processes – Distinct – separate injection and producing wells
Patent
1980-02-19
1981-11-17
Guynn, Herbert B.
Wells
Processes
Distinct, separate injection and producing wells
252 855D, E21B 4322
Patent
active
043006353
ABSTRACT:
An aqueous mixture is made of water, oil containing petroleum sulfonate, inorganic salt and, optionally, polymeric material wherein the polymeric material is added when it is desired to increase the viscosity of the mixture so that it is more suitable for use in certain types of oil recovery processes. The oil-to-active petroleum sulfonate ratio is adjusted to a preferred amount and oil in the petroleum sulfonate can be extracted and another oil can be added to replace the extracted oil so that the mixture has an increased tolerance to inorganic salt.
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Wilchester et al., "Laboratory Studies on Oil Recovery with Aqueous Solutions of Oil Soluble Sulfonates", Spe Paper No. 4742, 1974, 8 pages.
Guynn Herbert B.
Phillips Petroleum Company
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