Acidizing asphaltenic oil reservoirs with acids containing salic

Details Acidizing asphaltenic oil reservoirs with acids containing salic Acidizing asphaltenic oil reservoirs with acids containing salic

1976-12-06

1978-06-27

Padgett, Benjamin R.

Wells

Processes

Placing fluid into the formation

166308, 252 855B, 252 855C, E21B 4316

Patent

active

040969142

ABSTRACT:
A reservoir which contains an asphaltenic oil can be acidized with an aqueous acid without causing a deposition of permeability impairing iron-asphaltene compounds by dissolving or dispersing an effective amount of salicylic acid within at least the first injected portion of the aqueous acid.

REFERENCES:
patent: 2175095 (1939-10-01), Stoesser
patent: 2301875 (1942-11-01), Holmes
patent: 2335689 (1943-11-01), Morgan et al.
patent: 2885004 (1959-05-01), Perry
patent: 3142335 (1964-07-01), Dill et al.
patent: 3625284 (1971-12-01), Gogarty et al.
patent: 3799266 (1974-03-01), Kiel
patent: 3970148 (1976-07-01), Jones et al.
Organic Sequestering Agents, Chaberek et al., pp. 155, 405, 1959.

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