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底水气藏的开发在气藏开发中占有重要地位。文章首次推导底水气藏水锥高度与形状模型，该模型定量地描述了气体产量、供气半径、气层厚度和渗透率等对水锥高度和分布的影响，根据该模型可求出最大水锥高度和无水临界产量。建立了底水气藏水锥高度与分布模型的求解方法：假定气相流动为平面径向流并不考虑气相非达西流动，可以求出模型的解析解；假定气相流动为球面向心流以及考虑气相非达西流动时，只能求出模型的数值解。同时文章结合实例分析水锥特征，为底水气藏开发提供了参考依据。

NEW CALCULATING METHOD OF HIGHNESS AND SHAPE OF WATER CONE FOR GAS POOL DRIVEN BY BOTTOM WATER 1)

Many developed gas reservoirs belong to the gas reservoirs driven by bottom water. The article first derives the model of highness and shape of water cone for the gas reservoirs driven by bottom water. The model quantitatively describes the influence of gas production, gas drainage radius, gas pay thickness, and permeability, etc. on highness and distribution of water cones. Using the model, the maximum highness of the water cone and the water-free critical production can be derived. And the model solution of highness and distribution of water cones for the gas reservoirs driven by bottom water is established. Assuming the gas phase flowing is a plane radial flow not considering non-Darcy flow, the analytic solution of the model can be obtained. When assuming the gas phase flowing is a spherical centripetal flow with non-Darcy flow, only the numeral solution of the model can be obtained. Also, with real cases the article analyzes the characteristics of water cone, which provide reference for development of the gas reservoirs driven by bottom water.