Abstract
Pipeline transportation is a security, economical and effective transportation mode of fluid, and is widely used in petroleum, gas and other fields. The detection of small-caliber buried oil and gas pipeline under trenchless is an important means to master the situation of small diameter buried pipeline and to ensure the safe operation of pipeline. To ensure the straightway and safe operation and disaster prevention of oil and gas pipelines, the paper analyzes the status of trenchless detection technology of existing small-diameter underground oil and gas pipeline, proposed new technologies and countermeasures of detection of small-caliber buried oil and gas pipeline, constructed technology and equipment of detection of small-caliber buried pipeline.
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