According to the post fracturing production performance characteristics of the operation wells in Sinopec Argentina work area of San Jorge basin, the more intensive the reconstruction is, the worse the effect is. By comparing the characteristics of typical wells, combining with the distribution characteristics of reservoir, the influence of tuffaceous matter, the state of in-situ stress, and the propagation law of hydraulic fractures, the main factors causing the abnormal performance are revealed. The characteristic parameters of typical wells in the work area are compared, and the main control factors affecting the key parameters of production are discussed. From the fracture scale, working fluid system, pumping parameters and other aspects, the targeted measures are optimized. The practice shows that the success rate of low intensity transformation is higher, which is nearly 10% higher than that of medium intensity transformation; within one year after fracturing, the average daily oil production of single well is 3.0 m 3 higher, and the efficiency is remarkable. According to the characteristics of the work area, the small-scale and low-intensity sand adding transformation scheme is adopted, which improves the success rate and efficiency of hydraulic fracturing operation, and provides a new technical idea for tapping the potential of the next process.
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