The minute or microscopic voids in porous rock. Rocks containing pores are able to hold oil, gas and water. If the pores are interconnected, the rock is permeable and a good reservoir rock. A discrete void within a rock, which can contain air, water, hydrocarbons or other fluids. In a body of rock, the percentage of pore space is the porosity
The percentage of pore volume or pore space or that volume within a rock that can contain water or hydrocarbons
The pressure of the fluid contained in the pore volume
Joining together of several small acreages for the joint development of wells
Joining together of two or more acreages into one unit for drilling purposes
A natural underground reservoir containing an accumulation of petroleum.
