Analytical Model for the Pressure Performance Analysis of Multi-Fractured Horizontal Wells in Volcanic Reservoirs

Multi-fractured horizontal well (MFHW) technology is a key for developing unconventional reservoirs, which can generate complex fracture network called stimulated reservoir volume (SRV). Currently, there are many relative analytical models to describe the fluid seepage law, not suitable volcanic reservoirs as of yet. The reasons follows: (1) due development natural fractures, multi-scaled flow (matrix, SRV) should be considered characterize MFHW in reservoirs; (2) non-Darcy and stress sensitivity simultaneously reservoirs. Thus, this paper presents novel analysis model that uses multi-scale dual-porosity medium mechanisms. Laplace transformation, Duhamel principle, perturbation method Stehfest numerical inversion employed solve obtain dynamic pressure response curves. results show curve divided into eight stages. Sensitivity shows parameters hydraulic fractures mainly affect early stage. SRV region middle unreconstructed regions, late