Please answer b-d

a. In details, define the capillary pressure is defined as a system with two immiscible fluids (Include the capillary rise phenomenon) (5 marks) b. Use the information you gathered in the last section to derive the capillary pressure equation (Consider a liquid coexisting with a gas) (5 marks) c. In this course PEEN3001, you've already learned a simple method on how to determined capillary pressure curves for rocks by mercury injection. Do some research on the centrifuge measurement of capillary pressure, summarise your findings. (10 marks) d. In the reservoir The J-function accounts describes the heterogeneous rock characteristics, more adequately by combining porosity and permeability in a parameter for correlation. Derive the J-function by dimensional analysis or by substitution into the Carman-Kozeny equation. (10 marks) Assumptions: Always account for a liquid-das system Keep the consistency of the units Additional Notes: Use equations and illustrations to support your