FIELD: petroleum industry.
SUBSTANCE: invention relates to the oil production industry, particularly to acid treatment of terrigenous reservoirs and can be used for acid treatment of the face zone of productive oil recovery formations. The composition of the compound for acid treatment of the face zone of the terrigenous seam is as follows (% by weight): hydrochloric acid 9.0-18.0; hydrofluoric acid 2.0-8.0; cation surface active substance (in conversion to the base substance) 0.1-1.0; tertiary amine oxide - water-soluble surface active substance (in conversion to the base substance) 0.05-0.5; water - residual.
EFFECT: increased penetrative capacity of the compound for acid treatment into oil saturated part of the formation.
1 tbl, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| COMPOSITION FOR ACID TREATMENT OF BOTTOM-HOLE ZONE OF TERRIGENOUS FORMATION | 2000 |
|
RU2186963C2 |
| DRY ACID COMPOSITION FOR ACID TREATMENT OF TERRIGENOUS COLLECTORS | 2020 |
|
RU2752415C1 |
| SOLID BASE OF COMPOUND FOR ACID TREATMENT OF TERRIGENOUS RESERVOIR | 2007 |
|
RU2333235C1 |
| BASE OF COMPOSITION FOR OXYGEN TREATMENT OF TERRIGENOUS RESERVOIR AND DECLAYING OF BOTTOMHOLE FORMATION ZONE | 2005 |
|
RU2301248C1 |
| ACIDIC COMPOSITION FOR TREATMENT OF FORMATION BOTTOM-HOLE ZONE | 2019 |
|
RU2723768C1 |
| HYDROCHLORIC ACID COMPOSITION FOR TREATMENT AND CLAY CAKE REMOVAL OF BOTTOMHOLE FORMATION ZONE | 2018 |
|
RU2704167C1 |
| ACID COMPOSITION FOR TREATMENT OF TERRIGENOUS RESERVOIR BOTTOMHOLE FORMATION ZONE WITH HIGH CARBONATENESS | 2016 |
|
RU2616923C1 |
| ACID COMPOSITION FOR CHEMICAL TREATMENT AND FILTER CAKE REMOVAL OF WELL BORE ZONE OF RESERVOIR | 2018 |
|
RU2677525C1 |
| ACID SURFACE-ACTIVE COMPOSITION FOR TREATING BOTTOM-HOLE ZONE OF OIL AND GAS WELLS | 2015 |
|
RU2643050C2 |
| METHOD FOR MUDDING FORMATION REMOVING FROM BOTTOMHOLE TERRIGENOUS FORMATION AREA | 2004 |
|
RU2272127C1 |
