FIELD: chemistry.
SUBSTANCE: composition for acid treatment of bottom-hole formation zone contains the following in wt %: mixture of a disodium salt of sulphoamber acid monoesters and alkylphenol ethoxylates based on propylene trimers, produced under the industrial name SOP-10n, 0.25-2.0, hydrochloric acid in terms of hydrogen chloride 10.0-24.0, water being the balance. The invention is developed in subclaims.
EFFECT: preventing formation of asphalt-resin deposits, reduced corrosiveness of the composition, reduced rate of dissolution of carbonate rocks, high surface activity on the boundary with oil, improved oil-washing properties and high penetrating power of the composition.
3 cl, 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| ACID COMPOSITION FOR TREATMENT OF BOTTOMHOLE FORMATION ZONE | 2017 |
|
RU2656293C1 |
| ACIDIC COMPOSITION FOR TREATMENT OF FORMATION BOTTOM-HOLE ZONE | 2019 |
|
RU2723768C1 |
| ACIDISING COMPOSITION FOR BOTTOMHOLE FORMATION ZONE | 2017 |
|
RU2641044C1 |
| HYDROCHLORIC ACID COMPOSITION FOR TREATMENT AND CLAY CAKE REMOVAL OF BOTTOMHOLE FORMATION ZONE | 2018 |
|
RU2704167C1 |
| ACID SURFACTANT COMPOSITION FOR TREATING HOLE-BOTTOM ZONE | 2005 |
|
RU2307149C2 |
| ACID COMPOSITION FOR TREATMENT OF LOW-PERMEABLE TERRIGENOUS HEADERS WITH HIGH CARBONATE CONTENT AND METHOD OF ACID TREATMENT OF BOTTOM-HOLE FORMATION ZONE WITH BY USING IT | 2009 |
|
RU2407769C1 |
| ACID COMPOSITION FOR TREATMENT OF TERRIGENOUS RESERVOIRS (VERSIONS) | 2020 |
|
RU2744899C1 |
| COMPOSITION FOR ACID TREATMENT OF BOTTOMHOLE FORMATION ZONE | 2015 |
|
RU2601887C1 |
| ACID EMULSION FOR BOTTOMHOLE FORMATION ZONE | 2013 |
|
RU2525399C1 |
| HYDROCHLORIC ACID COMPOSITION FOR REMOVING FILTER CAKE FROM BOTTOMHOLE FORMATION ZONE | 2009 |
|
RU2389750C1 |
