本文介绍了实验室研究泥浆对油层损害的新方法,即损害半径-渗透率研究模式。它和国内外当前沿用的单一渗透率研究模式不同。通过在模拟钻井条件下测定泥浆的动失水,并同时进行泥浆对岩心的侵害,求出损害半径及油层渗透率恢复值,可计算得到表皮因子和产量比,以评价泥浆对油层的损害程度,它能够和现场测试得到的表皮因子值相对比,从而在理论和实践上为研究地层损害又提出了新的途径。 This article describes a new method of laboratory research on mud damage to reservoirs, namely the damage radius-permeability model. It is different from the current single penetration study mode at home and abroad. By measuring the loss of water from the mud under simulated drilling conditions and at the same time conducting mud damage to the core, recovering values ​​of the damage radius and the permeability of the reservoir can be calculated, and the epidermal factor and yield ratio can be calculated to evaluate the degree of mud damage to the oil layer , Which can be compared with the value of epidermal factor obtained from field test, and put forward a new way in theory and practice for the study of formation damage.