The strongly heterogeneous reservoir of Yanchang Formation in Longdong Yuan 284 area of Ordos Basin is a typical tight reservoir. Using a single brittleness index cannot truly reflect the compressibility of the reservoir. According to the logging response characteristics of the reservoir, this paper studied the relationship between the reservoir and the brittleness index and elastic mechanics parameters, and introduce the development degree of natural fractures, the heterogeneity of permeability and the degree of original pressure retention when evaluating the comprehensive compressibility of the reservoir parameter. A reservoir classification scheme based on reservoir compressibility is proposed. Using extreme parameter fracturing technology, for different types of reservoirs, the material balance method is used to determine the amount of liquid entering the ground required to restore the original formation pressure, and the personalized fracturing method optimizes the post-compression production to achieve high and stable production. This technology has achieved good application results in Yuan 284, which is of great significance for future oil and gas development.