| 摘要 |
Deleterious processes such as scale deposition in an oil well extending through a formation are inhibited by injecting an emulsion into the formation. The emulsion contains an aqueous solution of an inhibitor as a dispersed phase in an oil phase such as kerosene. The emulsion is arranged to break down when injected into the formation, for example by an appropriate choice of surfactant, so the inhibitor is adsorbed or precipitated in the formation. The use of the emulsion can be advantageous in wells with poor pressure support, and in formations susceptible to deconsolidation by acids. |
