Capillary entry-pressure definition

Capillary entry-pressure means the pressure that a non-wetting fluid (e.g. CO2) must overcome to displace water held tightly by capillary forces in the pores of a rock or sediment.
Capillary entry-pressure means the pressure that a non‐wetting fluid (e.g. CO2) must overcome to displace water held tightly by capillary forces in the pores of a rock or sediment of a confining layer.
Capillary entry-pressure means the pressure that a non-wetting fluid (e.g. CO2) must overcome to displace water held tightly by capillary forces in the pores of a confining layer.