The mud invaded radius calculated by using production test and pressure measurement data is more accurate than by using dual laterolog method in heavy mud invasion zones.

• 运用试油与测压等资料可以较准确计算泥浆侵入半径，并对泥浆侵入校正图板进行校正，从而在泥浆侵入深的地区较为准确地识别油气层。