Ann: K1 Update & Sub surface Validation, page-19

Yeah you are basically correct HC but I will make one minor correction. 6.1 is technically the gas content, not the gas saturation which is a percentage relating the gas content vs the maximum storage capacity of the coals. So if the coals are capable of storing 10 m3/t at this pressure then 6.1 would be 61% saturation.

What this means is that both coals could be equal saturation and even equal desorption pressure but have different gas contents if the storage capacity is different. So maybe VuU is 6.1 and VuL is 6.3 for example.