FIELD: oil-and gas industry.
SUBSTANCE: fluid for wells killing and completion contains wt %: hydrocarbon basis 46-68, acid mixture 14.1-18, caustic soda 8-13, calcium carbonate is the rest, at that the acid mixture has the following composition wt % : cyclic acid 90-97, natural or synthetic fatty acid - 3-10. Additionally the fluid can contain a organic bentonite.
EFFECT: fluid thermal stability at high temperatures, high viscosity, widely spread and low cost raw materials.
2 cl, 2 tbl, 5 ex
| Title | Year | Author | Number |
|---|---|---|---|
| WELL COMPLETION AND PULLOUT COMPOSITION | 2003 |
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