Due to the ultra-low permeability in shale reservoirs, hydraulic fracturing is necessary to provide secondary permeability to increase production in horizontal wells. Well spacing is a key factor in maximizing recovery of a shale reservoir. At the same it is important to understand the effective drainage area and the inherent reservoir quality to optimize the development strategy. In this paper, a workflow has been described to optimize field development strategy and maximize recovery of a shale play by integrating microseismic, DFN, tracer data and high frequency stratigraphic characterization.

In the first section, fracture geometry for the primary horizontal wells was estimated from microseismic data, tracer data and discrete fracture network model to establish the frac half-length, frac height and effective drainage area. From all these studies, it was observed that the hydraulic fractures of the primary wells are not able to drain the entire shale reservoir and a major portion of the reservoir remains un-drained. This analysis brought out an initial understanding about the requirement of staged lateral to exploit the un-drained reservoir section.

In the second section, various reservoir parameters were integrated with normalized well performance to capture the subsurface drivers that control the well productivity. Based on these critical drivers and gas in place, the above described un-drained reservoir portion was assessed to ensure its potential be a separate target.

In the last section, we have illustrated the importance of lateral placement through high frequency stratigraphic characterization. This analysis indicated that to maximize the well performance or recovery we need to place the lateral within the best part of the reservoir.

The illustrated workflow in this paper helps in deciding the optimum number of wells required to maximize field recovery. This study also helps in understanding the role of lateral placement in enhancing the well performance. This workflow can be applied to any shale plays which are in the initial stage of their development phase to understand if there is any scope of improvement in ongoing development strategy.

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