Abstract Gas hydrates are considered as a strategic unconventional clean hydrocarbon resource. This paper analyses the techno-economic viability of the methane gas production from the fracture-dominated gas hydrate reservoir in the Krishna-Godavari basin, east coast of India based on multi-well configurations. The analysis is done using the gas hydrate field depressurization-based production numerical simulator NIOT-IndHyd 1.1 and the gas hydrate field development return-of-investment cost model with reservoir petro-physical properties and India's current natural gas import price as inputs. The results indicate that reservoirs with post-dissociation permeability (PoDP) of >200mD with hydrate saturations >75% or higher PoDP are economic production targets for the present Indian natural gas import price of US$ 4.66/MMBtu. The payback period for multi-well configurations with a floating production unit for various reservoir post dissociation permeabilities are also presented.

中文翻译：

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印度东海岸 Krishna-Godavari 盆地天然气水合物储层生产甲烷的技术经济可行性研究

摘要 天然气水合物被认为是一种具有战略意义的非常规清洁油气资源。本文基于多井配置分析了印度东海岸 Krishna-Godavari 盆地以裂缝为主的天然气水合物储层生产甲烷的技术经济可行性。使用基于天然气水合物气田降压生产数值模拟器NIOT-IndHyd 1.1和以储层物性和印度当前天然气进口价格为输入的天然气水合物气田开发投资回报成本模型进行分析。结果表明，解离后渗透率（PoDP）>200mD、水合物饱和度>75%或更高的储层是当前印度天然气进口价格4.66美元/MMBtu的经济生产目标。