FIELD: oil and gas industry.
SUBSTANCE: reagent composition for dissolving sulphate colmatant contains, wt%: complexing agent 13.0–16.0; potassium hydroxide 12.0–14.0; peroxy compound 1.0–2.0; water – balance. Complexing substance consists of ethylenediaminotetraacetic and nitrilotriacetic acids taken in ratio (3.00–3.33):1.
EFFECT: high efficiency of dissolving sulfate colmatant, high reliability and productivity of wells.
1 cl, 5 tbl
Title | Year | Author | Number |
---|---|---|---|
REAGENT COMPOSITION FOR DESTRUCTING SULPHATE DEPOSITION IN GAS BOREHOLES OF UNDERGROUND GAS STORAGE FACILITIES | 2020 |
|
RU2759749C1 |
REAGENT COMPOSITION FOR DISSOLVING CARBONATE COLMATANT | 2019 |
|
RU2717850C1 |
REAGENT COMPOSITION FOR DESTRUCTING CALCIUM CARBONATE DEPOSITION IN GAS BOREHOLES OF UNDERGROUND GAS STORAGE FACILITIES | 2020 |
|
RU2759614C1 |
METHOD OF PROCESSING GAS WELLS OF UNDERGROUND GAS STORAGES | 2019 |
|
RU2726089C1 |
METHOD FOR PROCESSING OF FORMATION FACE ZONE | 2003 |
|
RU2232879C1 |
COMPOSITION FOR REMOVING BARIUM AND CALCIUM SULPHATE SCALING AND METHOD FOR APPLICATION THEREOF | 2020 |
|
RU2758371C1 |
COMPOSITION FOR REMOVING DEPOSITS OF COMPLEX MINERAL-ORGANIC NATURE FORMED IN A WELL DURING EXTRACTION OF HYDROCARBON OR MINERAL RESOURCES | 2019 |
|
RU2723426C1 |
HYDROCHLORIC ACID COMPOSITION FOR TREATMENT AND CLAY CAKE REMOVAL OF BOTTOMHOLE FORMATION ZONE | 2018 |
|
RU2704167C1 |
GAS GENERATING FOAM COMPOUND FOR TREATMENT OF BOTTOMHOLE ZONE OF FORMATION (VERSIONS) | 2007 |
|
RU2351630C2 |
HYDROCHLORIC ACID COMPOSITION FOR REMOVING FILTER CAKE FROM BOTTOMHOLE FORMATION ZONE | 2009 |
|
RU2389750C1 |
Authors
Dates
2020-03-26—Published
2019-08-02—Filed