解释1:Connate water is water which is trapped in rock pores.
Connate water occurs as a film of water around each grain of sand in granular reservoir rock and is held in place by capillary attraction.
Because most petroleum was initially formed from matter settling to the ocean floor, some salt water remains in the rock pores. This water is called connate water.
Connate water is water which is trapped in rock pores.
解释2(SLE):Water trapped in the pores of a rock during formation of the rock. The chemistry of connate water can change in composition throughout the history of the rock. Connate water can be dense and saline compared with seawater. Formation water, or interstitial water, in contrast, is simply water found in the pore spaces of a rock, and might not have been present when the rock was formed. Connate water is also described as fossil water.
解释3(Wiki):In geology and sedimentology, connate fluids are liquids that were trapped in the pores of sedimentary rocks as they were deposited. These liquids are largely composed of water, but also contain many mineral components as ions in solution.
As rocks are buried, they undergo lithification and the connate fluids are usually expelled. If the escape route for these fluids is blocked, the pore fluid pressure can build up, leading to overpressure.