FIELD: oil and gas industry.
SUBSTANCE: in destruction method of sulphate-calcium deposits of oil field equipment, which involves treatment of deposits with water solution of chemical reagent, saturated water solution of ammonium sulphate is used as the above solution. Repeated use of ammonium sulphate solution is performed after clarification or filtration of the deposit of calcium-ammonium sulphate; deposit containing calcium-ammonium sulphate is utilised as a fertiliser.
EFFECT: increasing ecological efficiency of utilisation of sulphate-calcium deposits during oil production.
3 cl, 2 ex, 2 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| COMPOSITION FOR PREVENTING INORGANIC SALT DEPOSITS WHEN EXTRACTING OIL AND GAS FROM WELLS | 2010 |
|
RU2447125C1 |
| COMPOSITION PREVENTING SEDIMENTATION OF NON-ORGANIC SALTS AT EXTRACTION OF OIL AND GAS FROM WELLS | 2010 |
|
RU2434043C1 |
| COMPOSITION PREVENTING SEDIMENTATION OF NON-ORGANIC SALTS AT EXTRACTION OF OIL AND GAS FROM WELLS | 2010 |
|
RU2434044C1 |
| METHOD FOR PREVENTING DEPOSITS OF NON-ORGANIC SALTS | 2013 |
|
RU2531298C1 |
| COMPOSITION FOR REMOVAL OF DEPOSITS OF INORGANIC SALTS IN WELL (VERSIONS) | 2017 |
|
RU2688992C1 |
| METHOD OF PRODUCTION AND USAGE OF LONG-TERM ACTIVE REAGENTS FOR PROTECTION OF EXTRACTING OIL WELLS AND ASSOCIATED TECHNOLOGICAL EQUIPMENT FROM CORROSION AND SCALE | 2017 |
|
RU2659055C1 |
| METHOD FOR PREVENTING DEPOSITION OF MINERAL SALTS AND FERRIC SULFATE | 2002 |
|
RU2233376C2 |
| COMPOSITION FOR INHIBITING SALT DEPOSITION | 2018 |
|
RU2702784C1 |
| METHOD OF DEVELOPING NONUNIFORM HYDROCARBON POOL | 1999 |
|
RU2167280C2 |
| COMPOSITION FOR SEDIMENT REMOVAL FROM OIL WELLS AND RESERVOIR BOTTOMHOLE ZONE | 2014 |
|
RU2552434C1 |
