宝钢经济型油套管接头产品开发及应用

Development and application of Baosteel's economical oil tubing and casing connections

油套管接头的性能是油套管管柱重要质量指标之一,其选用条件是根据油气田工况条件,采用API扣型和特殊螺纹扣型。对于低压低产气井,选用API扣型不能保证气密封性能,选用特殊螺纹扣型价格贵、成本高,因此,没有合适的扣型选用。宝钢根据油田低压低产气井工况条件,设计开发了经济型油套管产品,产品通过全尺寸实物性能试验,其上扣完整性、密封完整性、结构完整性达到了产品设计要求,并在油田完成了下井试验,产品满足了油田实际工况的要求,实现了实用性和经济性的统一。

Performance of oil tubing and casing connections is one of the most important quality indicators for the column of oil tubing and casing.Based on the well condition,API series connections and special thread connections are preferred in general.However,for those gas wells with low yield and low pressure,there is almost no proper connection that can be used.The API series connections are poor in gas sealing,and the special thread ones are too expensive.Based on the working conditions of those gas wells,Baosteel has designed and developed an economical connection,which has been qualified in a full scale test in laboratory.Its integrity in make-up,sealing and structure has reached the design requirements.And the product has gone through all the application tests in the oil field.As it can meet the needs of the oil fields,it has realized the unity of practicality and economic efficiency.