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In one of the offshore platform we are injecting acid gas (typically 63% CO2, 19% H2S) into the well. We have provided a orifice plate with additional pressure and temperature measurement for compensation at the discharge line of acid gas injection compressor. Brief data is:
Line size = 3"
Class = 900#
Inlet pressure = 150 bar
Density = 55 kg/m3
The gas is at very dense state but not in two phase. Accuracy required +/-3%. This measurement is required for allocation flow calculation. We are using flow computer and pressure & temperature compensation for the density & compressibility variation corrections.
I am looking for feedback on the following matters:
1. What are the meters normally applied for acid gas flow apart from orifice plate?
2. What are the problems normally faced?
3. What is the best location - compressor discharge or compressor suction?
Appreciate experience from anybody on this matter.
Line size = 3"
Class = 900#
Inlet pressure = 150 bar
Density = 55 kg/m3
The gas is at very dense state but not in two phase. Accuracy required +/-3%. This measurement is required for allocation flow calculation. We are using flow computer and pressure & temperature compensation for the density & compressibility variation corrections.
I am looking for feedback on the following matters:
1. What are the meters normally applied for acid gas flow apart from orifice plate?
2. What are the problems normally faced?
3. What is the best location - compressor discharge or compressor suction?
Appreciate experience from anybody on this matter.
