FIELD: mining.
SUBSTANCE: here is disclosed method of processing bottomhole zone of carbonate formation which consists in pumping first solution of alkali metal hydroxide into formation, then solution of hydrochloric acid, in well completion, in dropping pressure in well after pumping alkali metal hydroxide into formation for extracting reaction products from formation bottomhole zone; also oxyethylendiphosphonic acid at amount of 0.05 wt % or tetrasodium salt of ethylendiamintetraacetic acid - trilon "B" at amount of 0.01 wt % or orthophosphoric acid at amount of 1.5 wt % are added to solution of hydrochloric acid.
EFFECT: increased efficiency of formation bottomhole zone processing by means of preventing sediment growth of products of reaction of hydrochloric acid solution with rock of formation botomhole zone.
1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| DEVELOPMENT METHOD OF BOTTOM-HOLE ZONE OF TERRIGENOUS OIL FORMATION | 2011 |
|
RU2475638C1 |
| COMPOSITION FOR REMOVING BARIUM AND CALCIUM SULPHATE SCALING AND METHOD FOR APPLICATION THEREOF | 2020 |
|
RU2758371C1 |
| METHOD FOR PROCESSING OF FORMATION FACE ZONE | 2003 |
|
RU2232879C1 |
| COMPOSITION FOR ACID TREATMENT OF BOTTOM-HOLE TERRIGENOUS FORMATION ZONE | 2016 |
|
RU2614994C1 |
| TREATMENT METHOD OF BOTTOMHOLE FORMATION ZONE WITH TERRIGENOUS TYPE OF RESERVOIR | 2019 |
|
RU2724833C1 |
| REAGENT COMPOSITION FOR DISSOLVING CARBONATE COLMATANT | 2019 |
|
RU2717850C1 |
| COMPOSITION FOR TREATMENT OF BOTTOM-HOLE ZONE OF CARBONATE RESERVOIR | 2019 |
|
RU2731302C1 |
| REAGENT COMPOSITION FOR DESTRUCTING CALCIUM CARBONATE DEPOSITION IN GAS BOREHOLES OF UNDERGROUND GAS STORAGE FACILITIES | 2020 |
|
RU2759614C1 |
| HYDROCHLORIC ACID COMPOSITION FOR TREATMENT AND CLAY CAKE REMOVAL OF BOTTOMHOLE FORMATION ZONE | 2018 |
|
RU2704167C1 |
| COMPOSITION FOR THE CHEMICAL TREATMENT OF THE WELLBORE ZONE OF THE RESERVOIR | 2018 |
|
RU2681132C1 |
