Quality calculation issues for gas storage wells
Thread Content
The capacity of a gas storage well is generally expressed in terms of water volume; so how is its stored mass calculated? For example: if a gas storage well with a volume of 6 cubic meters stores natural gas at 20 MPa pressure, and it can hold 1500 cubic meters of gas, what is the mass of that gas?
This post was last edited by njtch on 2009-12-25 20:28. Are you calculating the mass under standard conditions or under operating conditions? At standard conditions, one looks at the density of natural gas under those conditions; whereas at operating conditions, the compressibility factor must be taken into account. If we simply calculate the mass under operating conditions, since you know it’s 1500 cubic units, just multiply 1500 by the density at standard conditions and then divide by 6, which is the volume of 1 cubic unit of water – that’ll give you the result
What is the relationship between water volume and air storage capacity?
:(I couldn’t find the answer; those who are also looking for it, please help!)
First, for the 6 Water Cubes, when filled with gas at 20 MPa, they should be able to hold approximately 1200 Nm3 of gas under standard conditions. As for the mass, it should remain the same whether under operating conditions or standard conditions. The mass can be calculated using standard conditions: 1200*0.7=840kg.