By means of Patsnap patent analysis tool,the relevant patent literature in the field of polyolefin pipe technology for oil fields worldwide is analyzed from the perspectives of application trends,regions distribution,technological composition,applicants,and key patents.Analysis results show that the technologies about polyolefin pipes for oil fields worldwide stays still in a stage of rapid development,and Chinese enterprises have the vast majority of patent rights,but the companies in the United States and Jacan control the core patent technologies.At present,the research and development focus on polyolefin composite pipe technology represented by RTP pipes,especially the selection and batching technology of polyolefin inner lining pipe materials in composite pipe.Although Chinese enterprises started relatively late,their application volume is huge,and their comprehensive strength cannot be underestimated.
oil and gas transportationpolyolefincomposite pipeinner lining pipepatent analysis
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万方数据
