FIELD: oil and gas industry.
SUBSTANCE: invention relates to the sphere of soils treatment from oil products. While implementing this oil-contaminated soil treatment method a grid of injecting wells is made. The injecting wells are made with depth below the depth of contaminated soil. A grid of extraction wells is made. Extraction wells are placed in staggered arrangement in regard to injecting wells. Treatment fluid and carbon dioxide is delivered through injecting wells. Water-in-oil emulsion is pumped off and separated. Conventionally treated water is returned back to process cycle. Carbonated water is used as fluid for treatment.
EFFECT: improved efficiency of soil treatment without introduction of chemical substances to environment.
5 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR OIL-CONTAMINATED SOIL PURIFICATION USING HIGH-PRESSURE TECHNOLOGY | 2020 |
|
RU2752983C1 |
| METHOD OF CLEANING THE SOIL CONTAMINATED WITH OIL AND/OR PETROLEUM PRODUCTS | 2005 |
|
RU2295402C2 |
| METHOD OF LOCALISATION OF OIL SPILLS IN NAME-FLOOD COMPLEXES OF MINOR RIVERS AND PROTECTIVE WATERWORK | 2012 |
|
RU2509187C1 |
| METHOD OF COMPLEX OIL-CONTAMINATED SOIL RECLAMATION | 2006 |
|
RU2331489C1 |
| METHOD OF EXPRESS-DETERMINING CONTAMINATION OF AREAS OF SOIL AND GROUNDWATER WITH CRUDE OIL AND REFINED PRODUCTS | 2013 |
|
RU2519079C1 |
| METHOD FOR WASHING OIL-CONTAMINATED SOILS | 2018 |
|
RU2740121C2 |
| METHOD FOR WATER-DECOMPOSITION OF OIL-CONTAMINATED SOILS | 2018 |
|
RU2744939C2 |
| METHOD OF RECLAMATION OF DRILLING SLUDGE CULVERT | 2018 |
|
RU2702184C1 |
| OIL INSTALLATION | 2005 |
|
RU2291933C1 |
| METHOD TO CLEAN SURFACES AND UNDERLYING ROCKS FROM OIL PRODUCTS | 2003 |
|
RU2238806C1 |
