Perturbed-Chain Statistical Associating Fluid Theory (PC-SAFT) is coupled with Young-Laplace equation to investigate and represent phase equilibria for associating fluids in nanopores. Despite of stronger fluid-fluid and fluid-wall interactions, the equation of state was found to perform as well as it did for non-associating fluids in the preceding work (Tan and Piri [1]). When the information obtained for pure substances is applied to mixtures in the same porous mediums, the phase equilibrium is accurately predicted, except for strongly-associating mixtures in polar mediums, for which it requires further studies. The promising results presented in this work complement those for non-associating fluids in the preceding study [1] to develop an effective model toward engineering applications in real settings of confined fluids such as chemical systems encountered in unconventional reservoirs (e.g., shale oil and shale gas). (C) 2015 Elsevier B.V. All rights reserved.