Natural gas hydrate inhibitor
A hydrate inhibitor and natural gas technology, applied in the direction of drilling compositions, chemical instruments and methods, etc., can solve the problems of reducing the growth or coalescence speed of hydrates, achieve obvious inhibitory effect, less usage, and environmental hazards small effect
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[0012] Example 1: Polyvinylpyrrolidone, polyetheramine and ethylene glycol butyl ether were prepared into a 200g aqueous solution with a mass concentration of 0.2% according to a mass ratio of 1:1:1, and filled into a reactor with agitation. The experimental pressure It is 7.2MPa, the experimental gas is a mixed gas (methane 91.95%, ethane 5.00%, and propane 3.05%), the reaction temperature is 277.15K, and the inhibition time of natural gas hydrate formation is 1650 minutes.
Example Embodiment
[0013] Example 2: Polyvinylpyrrolidone, polyetheramine and ethylene glycol butyl ether were prepared into a 200g aqueous solution with a mass concentration of 0.75% according to a mass ratio of 1:1:1, and filled into a reactor with stirring, and the experimental pressure It is 7.2MPa, the test gas is a mixed gas (methane 91.95%, ethane 5.00% and propane 3.05%), the reaction temperature is 277.15K, and the inhibition time of natural gas hydrate formation is 14850 minutes.
Example Embodiment
[0014] Example 3: Polyvinylpyrrolidone, polyetheramine and ethylene glycol butyl ether were prepared into a 200g aqueous solution with a mass concentration of 2.0% according to a mass ratio of 1:1:1, and filled into a reactor with stirring. It is 7.2MPa, the test gas is a mixed gas (methane 91.95%, ethane 5.00% and propane 3.05%), the reaction temperature is 277.15K, and the inhibition time of natural gas hydrate formation is 3580 minutes.
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