Optimising well orientation in hydraulic fracturing of naturally fractured shale gas formations

Complex interactions between hydraulic fractures and natural often result in highly complex fracture networks that might lead to bypassed resources damaging the economic viability of developments. In this study impact formation on production from hydraulically fractured wells is studied using a recently developed upscaling method (FUM). By capturing distribution FUM, novel idea changing well orientation optimise recovery proposed. It shown with spacing 15 m small change up 30° standard can increase by 15% for at an angle least 60° ?hmax. The increased stress complementing each other assist propagation deeper into formation. also as density increases (fracture decreases) effect becomes more significant. Changing when there are two perpendicular planes investigated. However, no optimal be found these cases, suggesting needs strong average directionality reservoir support beneficial change. A simple analysis shows allow larger which could direct reduction cost developing shale reservoir. results show positive has NPV project different gas prices, rapid status reducing risk investment.