Abstract
Stress sensitivity plays an important role in the development of a tight low-permeability gas reservoir. With the constant low-permeability reservoir exploitation, formation pressure drop, rock net effective coverage pressure increase, the rock pore is resulted in deformation and the seepage flow of fluid in a low-permeability reservoir no longer followed Darcy flow law. With the further exploitation of reservoirs, reservoir stress sensitivity is enhanced, so evaluation on the stress sensitivity on reservoir development was a burning question. The authors present results of those experiments that simulated the permeability changes via the net confining pressure in the lab and give the influencing factors of stress sensitivity.
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