FIELD: oil and gas industry.
SUBSTANCE: composition for acid treatment of the bottomhole formation zone includes the following components, wt %: hydrochloric acid 24.9-90.0, agent ITPS-806 A 5.0-7.5, water - the remaining volume. The composition can contain fluorhydric acid regulator in the quantity of 4.0-10.0 wt %.
EFFECT: development of multipurpose acid treatment for the bottomhole formation zone featured by high permeability to the formation due to speeding down of the acid reaction with formation rock, limitation of oxidation sludge formation and dispersion at contact of the acidic composition with oil as well as low tension at the border of the acidic composition and oil and compatibility with produced water and oil.
2 cl, 3 tbl, 7 ex
| Title | Year | Author | Number |
|---|---|---|---|
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|
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