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  1. derf99

    CO2 service ball valve elastomers

    I am looking into what type of valve elastomers to use for ball valves in CO2 service. We have liquid and gaseous CO2 with and without water (also in liquid or vapour state). I want ot avoid the explosive decompression associated with conventional valve elastomers. Similarly, what kind of...
  2. derf99

    CO2 miscible flood with sand

    I have a sand problem with CO2 flood. The wellhead effluent is at moderate pressure (400-600 psi) and still contains liquid CO2. There is sand present that is becoming a problem. What valves will stand up to this service, and how to remove the sand without making dry ice?
  3. derf99

    Service is Sour Oil and Gas mixture (Presence of Sand)

    I have a sand problem with CO2 flood. The wellhead effluent is at moderate pressure (4-600 psi) and still contains liquid CO2. There is sand present that is becoming a problem. What valves will stand up to this service, and how to remove the sand without making dry ice?

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