STUDY OF EVALUATION METHOD IN WATER FLOODING SENSITIVE TESTING WITH OIL ROCK SAMPLE

In 1995, the profession criterion of rock reservoir sensitive testing evaluation method was issued by CNPC, which could not content the demand of rock reservoir sensitive testing evaluation. Thinking the problem of the present, the new sensitive testing evaluation method with oil rock sample was confirmed according to the research result of sensitive of acid, velocity, salt and water. The sensitive of oil rock sample and rock sample was studied, from which we know that rock sample is more sensitive than oil rock sample. The effect of salinity grads to the salt sensitive testing was studied, from which we know that the bigger of salinity grads and the higher of critical mineralization, the more severity of the salt sensitive. The irrationality of the velocity sensitive evaluation standard was discussed and the modification notion was presented.