Natural gas pipeline drag reducer and preparation method thereof

The invention relates to the technical field of pipeline systems, in particular to a natural gas pipeline drag reducer and a preparation method thereof. The preparation method comprises the following steps: synthesizing a nitrogen-nitrogen dipolar compound; compounding the synthesized nitrogen-nitrogen dipolar compound by using N-methyl pyrrolidone. After the prepared natural gas pipeline drag reducer is injected into a natural gas pipeline through atomization, the drag reducer is firmly adhered to the inner wall of the pipeline, and a smooth and compact molecular film is formed; meanwhile, a nonpolar end exists at a gas-solid interface formed between fluid and the inner surface of the pipeline during formation of the molecular film, so that the energy loss produced by turbulence at the interface is reduced and the purposes of drag reduction and throughput increase are achieved.