关键词: 储集层, 损伤, 机理, 控制, [智能化软件]

Abstract: In this paper,some new achievement in the authors'studies in recent years about themechanism of formation damage and formation protection techniques were presented.Formation damage should be studied from both macroscopic and microscopic aspects.The diagnosis,recognition prevention,controlling and treatment of formation damage is asystematic engineering.The specific research strategy has to be designed according to thetype of reservoir.There exist internal correlations among various sensitivities.The releaseand migrations of particles with different surface electrical characteristics have essentiallydifferent responses to the adjustment of the ion concentration of invading fluids.A set ofmating technologies for protecting from formation damage wes established,with preventionas the first treatment in the second place.An advanced and applicable intelligent computersystem for the protection of formation dalnage was established.These achievements havebeen applied in Huabei,Zhongyuan,Tarim oilfields and obvious economic results have beenobtained.

Key words: reservoir, injury, mechanism, control, [intelligent software]