FIELD: oil-and-gas production.
SUBSTANCE: composition for reservoir waters insulation in high-temperature oil and gas wells contains, wt %: Neftenol JS-96 5.0-72.0, carbamide-2.0-12.0, surface active substance-Neftenol GF or Neonol AF9-10, or Neftenol VKS-N 0.1-2.0, the rest is fresh water.
EFFECT: selection properties increase.
6 ex, 2 tbl
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RU2811129C1 |
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| COMPOSITION FOR ISOLATION OF LOST CIRCULATION ZONES AND SHUTOFF OF FORMATION WATER INFLOWS TO WELL AND METHOD OF COMPOSITION PREPARATION | 1999 |
|
RU2177539C2 |
| FORMATION FACE ZONE PROCESSING COMPOUND | 2002 |
|
RU2232878C2 |
| PROCEDURE FOR DEVELOPMENT OF NON-UNIFORM RESERVOIR | 2008 |
|
RU2401939C2 |
