FIELD: oil and gas production.
SUBSTANCE: composition 61.0-68.9% petroleum or petroleum processing product, 2.0-4.7% natural fatty acid, 2.1-4.0% sodium hydroxide, and natural calcium carbonate with particle size 2 to 50 μm - the rest. Natural fatty acid employs vegetable and animal fat production waste.
EFFECT: enabled killing of well at temperatures up to 80°C with middle and low-permeable reservoirs using inexpensive and accessible domestically available materials allowing oil reservoir properties of producing formations to be preserved.
3 cl, 2 tbl, 2 ex
| Title | Year | Author | Number |
|---|---|---|---|
| FLUID FOR WELLS KILLING AND COMPLETION | 2008 |
|
RU2379325C1 |
| METHOD FOR SHUTTING A WELL | 2004 |
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RU2255209C1 |
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|
RU2201498C2 |
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|
RU2310674C1 |
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|
RU2167275C2 |
| BASE FOR CALCIUM-FREE WELL-KILLING FLUID | 2011 |
|
RU2470060C1 |
| PROCEDURE FOR WELL KILLING | 2010 |
|
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| FLUID FOR COMPLETING AND KILLING GAS WELLS | 1997 |
|
RU2136717C1 |
| COMPOSITION FOR PREPARING SOLID PHASE-FREE PROCESS FLUIDS (DENSITY UP TO 1600 kg/m) DESIGNED FOR COMPLETING AND REPAIRING OIL AND GAS WELLS | 2005 |
|
RU2291181C1 |
