要准确地评价地层损害程度,需从总表皮系数中扣除非地层损害的各种非理想因素产生的拟表皮系数。本文导出了各向异性地层产生的拟表皮系数与不渗透直线边界产生的拟表皮系数。各向异性产生的拟表皮系数为负,不渗透直线边界产生的拟表皮系数为正,它与边界距离及导压系数有关。井距边界愈远,产生的表皮系数愈小;导压系数愈大,产生的表皮系数愈大。 To accurately assess the degree of stratigraphic damage, it is necessary to deduct from the total epidermal coefficient the quasi-epidermal coefficient caused by various non-ideal factors of non-strata damage. This paper derives the quasi-epidermal coefficient produced by the anisotropic formation and the quasi-epidermal coefficient produced by the impervious linear boundary. The anisotropy produces a quasi-epidermal coefficient that is negative and the impermeable straight boundary produces a quasi-epidermal coefficient that is positive, which is related to the boundary distance and the pressure-dependent coefficient. The farther the well is from the boundary, the smaller the skin factor is; the larger the pressure coefficient is, the larger the skin factor is.