shale gas exploration

READ: Many unsolved problems in shale gas exploration are mostly attributed to drilling fluids. However, shales proneness to hydration swelling, which leads to a string of complex downhole problems like a collapsing wall, has determined oil-based mud to be applied in shale gas exploration. Many unsolved problems in shale gas exploration are mostly attributed to drilling fluids, so proper match between mud properties and engineering parameters gives birth to safe well drilling. Shale gas is produced by fracking since it mainly exists among cracks. However, shales proneness to hydration swelling, which leads to a string of complex downhole problems like a collapsing wall, has determined oil-based mud to be applied in shale gas exploration. Foreign companies apply a special drilling fluids ca