How will you get the gas out without hydraulic fracturing or stimulation?
We have assessed previous exploration programs at Whicher Range and have drawn the very clear conclusion that any form of stimulation (including fracking) is not suitable for this gas reservoir. We see natural flow as the solution.
As in other conventional gas and oil projects around the world, our project at Whicher Range has and would use similar proven drilling techniques that deliberately avoid the introduction of water based drilling fluids into the reservoir. Any future production wells would involve drilling vertically down and then directing the drilling sideways at an angle of between 30 to 40 degrees from the vertical (referred to as a high angle well). This maximises the potential for natural flow of gas into the well without the need for fracking or reservoir stimulation.
This technique ensures that only a very limited number of surface sites are required. Each of these sites would be approximately 10,000 m2 (2 ½ acres or 1 hectare) for well sites to 40,000 m2 (10 acres or 4 hectares) for a small-scale production facility.
Conventional Directional Drilling and comparison, Wytch Farm
High angle well development of Wytch Farm (the UK’s largest onshore oil field) reducing the number of surface drilling locations in an area of high ecological sensitivity.