环焊缝排查中疑似黑口的识别及开挖验证
Identification and excavation verification of the suspected black holes in girth welds inspection
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- 引用格式:
-
欧新伟,冯文兴,刘洋,陈朋超,任波涛.环焊缝排查中疑似黑口的识别及开挖验证[J].天然气与石油,2021,39(1):7-12.doi:10.3969/j.issn.1006-5539.2021.01.002
OU Xinwei, FENG Wenxin, LIU Yang, CHEN Pengchao, REN Botao.Identification and excavation verification of the suspected black holes in girth welds inspection[J].Natural Gas and Oil,2021,39(1):7-12.doi:10.3969/j.issn.1006-5539.2021.01.002
- DOI:
- 10.3969/j.issn.1006-5539.2021.01.002
- 作者:
- 欧新伟1，冯文兴1，刘洋2，陈朋超1，任波涛3
OU Xinwei1, FENG Wenxin1, LIU Yang2, CHEN Pengchao1, REN Botao3
- 作者单位:
- 1. 国家管网集团北方管道公司, 2. 中国石油天然气股份有限公司天然气销售东部分公司, 3. 中国石油天然气集团有限公司
1. PipeChina Northern Pipeline Company, Langfang, Hebei, 065000, China; 2. East Branch, PetroChina Natural Gas Marketing Company, Shanghai, 200122, China; 3. China National Petroleum Corporation, Beijing, 100007, China
- 关键词:
- 环焊缝排查;疑似黑口;数据对齐;开挖验证
Girth weld inspection; Suspected black hole; Data alignment; Excavation verification
- 摘要:
- 为查找建设期未被检测的环焊缝质量问题,降低油气管道开裂泄漏风险，以特征标识数据对齐为起点,通过比对焊口建设期与内检测信息,借助建设期射线底片上制管焊缝间距和内检测环焊缝时钟方位,实现建设期与内检测数据的有效对齐,筛选出无施工安装记录、无检测报告、无建设期射线底片的“三无”焊口(统称为疑似黑口)。使用焊口建设期测量坐标或惯性导航测量坐标,借助现场时钟方位信息、现场定位和现场测量等多种方法,实现疑似黑口的精确定位。由此得出，以特征标识数据对齐为起点,识别排查疑似黑口的流程有效。建议加强建设期施工质量管理、开展环焊缝安全隐患排查,推进数据对齐标准的修订,支持焊口风险评估。
To reduce the risk of oil and gas pipeline cracking and leaking, it is necessary to find out the quality problems of girth welds that were not inspected during construction. Starting from the feature identification data alignment, by comparing the weld construction period with internal inspection information, effective alignment of construction period and internal inspection data is achieved with the help of the pipe weld spacing on the radiographic film during the pipeline construction period and the internal inspection girth weld orientation. The welds without construction and installation records, no inspection reports, and no radiographic negatives (collectively referred to as suspected black holes) during the construction period are identified. Precise positioning of suspected black holes has been achieved using measurement coordinates during weld construction period or inertial navigation measurement coordinates, and with various methods such as on-site weld orientation information, on-site positioning and on-site measurement. It is concluded that the process of identifying and troubleshooting suspected black holes is effective based on the alignment of feature identification data. Finally, it is recommended to strengthen the construction quality management during the construction period, carry out the safety hazard investigation of girth welds, promote the revision engineering standards in terms of inspection data alignment with construction timing, and provide support for the welds risk assessment.
