Dry and Wet Natural Gas
Dry Natural Gas
(A). Purging Procedure – Fill and Empty Method This method was chosen when the temperature of the sample container is equal to or greater than the temperature of the source. Pressure source must be greater than atmospheric pressure.
(B). Purging Procedure – Controlled Rate This method was chosen when the conditions are the same as above.
(C). Container evacuated Procedure This method is selected when the source pressure above or below atmospheric pressure and temperature of the source is larger or smaller than the temperature of the sample container.
(D). H2O Displacemennt Procedure This method is applicable under the same conditions with evacuated Container Procedure (c), an acceptable source of pressure must be greater than atmospheric pressure.
(E). Glycol Displacement Procedure Applicable in the same conditions with H2O Displacemennt Procedure
(F) Floating Piston Cylinder Procedure Applicable in the same conditions with H2O Displacemennt Procedure
Wet Natural Gas
(A). Purging Procedure – Fill and Empty Method This method was chosen when the temperature of the sample container is equal to or greater than the temperature of the source. Pressure source must be greater than atmospheric pressure.
(B). Purging Procedure – Controlled Rate This procedure is not recommended for wet natural gas.
(C). Container evacuated Procedure This procedure is selected when the source pressure 1100 psi or below. Temperature source can be larger or smaller than the temperature of the sample container.
(D). Reduce Pressure Procedure This procedure can be applied in the same conditions with the conditions on the use of the procedure evacuated container. Filling pressures are limited to one to three at the top of the pressure source, a source of pressure ranges between 100 – 1100 psig.
(E). H2O This Methoe Displacement Procedure applicable under the same conditions with evacuated Container Procedure, an acceptable source of pressure must be greater than atmospheric pressure.
(F). Glycol Displacement Procedure Applicable in the same conditions with H2O Displacemennt Procedure
(G) Floating Piston Cylinder Procedure This procedure is not recommended for Wet Natural Gas unless cylinder grease that does not absorb example.
