海底管道内检测技术方案的确定
Determination of Technical Scheme of Internal Inspection in Subsea Pipeline
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- 引用格式:
-
徐慧,王诗鹏,杜鹃,傅强,孙换婷.海底管道内检测技术方案的确定[J].天然气与石油,2015,33(1):0.doi:
Xu Hui, Wang Shipeng, Du Juan, Fu Qiang, Sun Huanting.Determination of Technical Scheme of Internal Inspection in Subsea Pipeline[J].Natural Gas and Oil,2015,33(1):0.doi:
- DOI:
- 作者:
- 徐 慧1 王诗鹏2 杜 鹃3 傅 强1 孙换婷1
Xu Hui, Wang Shipeng, Du Juan, Fu Qiang, Sun Huanting
- 作者单位:
- 1.西安石油大学石油工程学院，2.中国燃气控股有限公司,3.中国石油西南油气田川港公司项目管理部
1.College of Petroleum Engineering, Xi'an Petroleum University; 2.China Gas Holdings Limited; 3.PetroChina Southwest Oil and Gas Field Chuangang Company Project Management Department
- 关键词:
- 海底管道;内检测;技术方案
Subsea pipeline; In-line inspection; Technical scheme
- 摘要:
- 海底管道的海底服役环境和管道的结构形式，决定了只能通过管道内检测实现对海底管道本体的检测。对海底管道内检测的三种主要检测技术进行了分析。针对海底管道转弯半径小、有立管、多相流动的特点，提出了海底管道内检测技术方案的确定方法：海底管道内检测的技术方法选择要根据海底管道的特点进行；在实施海底管道内检测的过程中，为防止卡球，确保万无一失，应该对海底管道添加蜡及分散剂，试通球，初步清管，机械清管作业，最后进行智能内检测；确定海底管道内检测技术方案时，应该进行可行性和风险分析，对异常情况制定相应的应急处置措施。
Due to marine service environment of subsea pipeline and pipeline structure, only in—line inspection can be adopted to inspect steel pipeline body. In-line inspection used for subsea pipeline mainly includes three inspection techniques and analyzed are the techniques. According to such characteristics of subsea pipeline as small radius of turning circle and existence of the riser and multiphase flow, proposed is the determination method of in-line inspection techniques: selection of specific inspection technique according to characteristics of subsea pipeline, addition of wax and dispersing agent into subsea pipeline during in-line inspection in order to prevent sphere pig from being blocked, trying to pass the pig for preliminary pigging, mechanical pigging operation and intelligent in-line inspection. Feasibility and risk analysis shall be performed before selection of specific inspection technique and corresponding emergency measures shall be prepared for abnormal conditions so as to minimize risks of subsea pipeline in—line inspection.
