The paper describes a novel methodology to construct distributed formation damage across openhole wells in carbonate reservoirs and to evaluate the effects of damage on zonal productivity. This methodology improves the prediction of well productivity by identifying the contribution of various types of damage to zonal productivity. This is critical for efficient decision making concerning well-completion and field-development options, particularly at the early stages of greenfield development.
Introduction
Numerous papers have investigated near-wellbore damage caused by drilling and acid, but the majority of these studies assume a homogeneous anisotropic reservoir and a perfectly horizontal well with constant diameter. In practice, these assumptions are unrealistic, especially when dealing with multilayered carbonate reservoirs.
