Experimental and predictive PC-SAFT modeling results for density and isothermal compressibility for two crude oil samples at elevated temperatures and pressures

摘要

Rapid growth in world oil demand is driving the oil and gas industry to search for petroleum in deep wells where elevated temperatures and pressures prevail. Accurate knowledge of thermodynamic properties such as density and isothermal compressibility at in-situ conditions is necessary to estimate the recoverable oil from these deep reservoirs. Yet, crude oil density data in the open literature for pressures exceeding 155 MPa are scarce or nonexistent.