Analytical model for production performance analysis of multi-fractured horizontal well in tight oil reservoirs

This paper presents a new analytical model for MFHW in tight oil reservoirs, where the reservoir is subdivided into five continuous flow regions: the unstimulated reservoir volume (USRV) regions 1 and 2, the stimulated reservoir volume (SRV) regions 3 and 4, and the hydraulic fracture (HF) region 5. The effects of non-Darcy flow and stress sensitivity are both considered. Laplace transformation, perturbation method and Stehfest numerical inversion are employed to solve the model comprehensively. The model solution is verified with analytical and numerical methods. The effects of related influential parameters on well production performance are investigated. Field example is conducted to show the applicability of the new model, history matching curve and results are obtained according to real production data. The research results summarized in this paper can provide some significance for production performance analysis of MFHW in tight oil reservoirs.