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2 results about "Kinetic Inhibitor" patented technology
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Kinetic Inhibitors are a new and evolving technology of a class of Low Dosage Hydrate Inhibitors (LDHI) that are polymers and copolymers (or a mix thereof). The most common of which is polyvinylcaprolactam (PVCap). These inhibitors are primarily utilized to retard the formation of clathrate hydrates. This problem becomes most prominent in flow lines when hydrocarbons and water flow through a line. The pressure and cold temperatures that could be exposed to the flow lines provides an environment in which clathrate hydrates can form and plug up the flow line. The inhibitors generally slow the formation of the hydrates enough so the fluid reaches storage without causing blockage.
Kinetic inhibitor for natural gas hydrate with high content of CO2 as well as synthesis method and application of kinetic inhibitor
The invention discloses a high-CO2-content natural gas hydrate kinetic inhibitor as well as a synthesis method and application thereof, and aims to overcome the defects that a conventional kinetic inhibitor in the prior art is poor in inhibition effect and easy to lose efficacy in a high-CO2-content natural gas system. The high-CO2-content natural gas hydrate kinetic inhibitor comprises an inhibitor main agent, an inhibitor auxiliary agent and an inhibitor solvent according to the mass percent of (5-50%): (0-60%): (30-70%). The inhibitor main agent is a bipolymer obtained by carrying out free radical polymerization on acrylamide monomers and ethoxylated (methyl) acrylate. The invention also provides a synthesis method of the inhibitor and application of the inhibitor in deepwater shallow gas exploitation and high-pressure transportation. The inhibitor disclosed by the invention can effectively solve the problem that a conventional inhibitor is easy to lose efficacy in a natural gas system with high CO2 content, remarkably delays hydrate nucleation and inhibits crystal growth, is wide in applicable temperature and pressure range, safe and environment-friendly, and has a good industrial application prospect.
Owner:SOUTH CHINA UNIV OF TECH
An ultra-deep water gas hydrate kinetic inhibitor, preparation method and application thereof
The present application relates to a kind of ultra-deep water gas hydrate kinetics inhibitor and preparation method and application, the hydrate inhibitor is by the copolymerization of first monomer and second monomer Binary copolymer or terpolymer;First monomer is 4-acryloyl morpholine, second monomer is at least one of N-vinyl pyrrolidone and N-vinyl caprolactam;4-acryloyl morpholine monomer is used in amount a, N-vinyl pyrrolidone monomer is used in amount b, N-vinyl caprolactam monomer is used in amount c, a:b:c=(20-60) %:(0-80) %:(0-80) %.The hydrate inhibitor of the present application can hinder the growth of hydrate, and the inhibitory effect is good, especially suitable for the environment under low temperature and high pressure;Preparation method is simple to operate, monomer is widely used, and the price is low, and the polymerization reaction condition is mild, and the yield is high.
Owner:中海油海南能源有限公司 +1