The amount of gas added was calculated from the temperature, pressure, z factor, and volume. The cell was then evacuated and the gas added. The cell was then evacuated and the gas port in the top of the cell. Salt that had been dried and weighed was then added through a port in the top of the cell. Some mercury was added to the rinsed and dried PVT cell to ensure that the tubing between the mercury manifold and the cell bottom was full of mercury. Some charges were made with only one or two of these components. This description of cell charging covers the addition of salt, gas and water to the cell. passed through a charcoal filter, and deaerated. The water was deionized, passed through a charcoal filter, and deaerated. The gas pressures were measured with a mercury manometer or a 0- to 200-psi USG test gauge. The gas mixture referred to as 'natural gas' in this paper contains 89.749 mol% methane, 9.240 mol% ethane, 0.913 mol% propane, and 0.098 mol% n-butane, mixed and analyzed by Matheson. The methane was Linde ultra-high-purity grade. The NaCl was Mallinckrodt analytic reagent or Sargent-Welch reagent ACS. Naturally, the temperature oscillations of the cell, which weighs about 370 lbm, were significantly less. The oven air-temperature oscillations were 0.5 degrees F with a period of about 70 seconds. The oven air temperature was controlled by a Love Model 65-712-718-738 temperature controller. L T cjem els wappsutported by a rocking mechanism inside an oven. The Fluitron PVT cell was made of Hastelloy C, designed for 23,000 psi at 400 degrees F PVT cell was made of Hastelloy C, designed for 23,000 psi at 400 degrees F, with an internal voluf er15v. A calibrated mercury injection pump (Ruska Model 2260), a 0- to 30,000-psi Heise Model CM-16 pressure gauge, and a PVT cell are the macothmnmptsenn tit thT PVniTandfo d.

Compressibility of water vs oil