抄録
The traceability labels used for GPI standard pipes for oil wells are cumulative management of application certification and usage load progress conditions that can disseminate pipes conforming to acid resistance (pH 2 or less), high temperature (maximum 250 °C), and high pressure (maximum 100 MPa), used for guaranteeing durability performance. The traceability system is a communication function with internet electronic information, created for users' needs that can be used and managed within the durability range in addition to the QC information which is the GPI standard application product. In this paper, comparison of 1D/2D code and image correction on pipe with cylyndrical shape skew is presented.