Recently, the 9-5/8"×5-1/2" liner hanger screen pipe top cementing process tools and accessories specially customized by Shelfoil Company for the Yongjin block were successfully applied, solving the technical problems of long horizontal section cementing under complex well conditions of high temperature, high pressure and easy leakage, helping the oil and gas development construction in the Junggar Basin of Shengli Oilfield to achieve another success, and setting the record of the deepest depth of the process pipe column into the well.

The Yongjin Oilfield is the first 100 million tonne oilfield discovered in the abdomen of the Junggar Basin in western Shengli, which has great development value and is of great significance to the construction of oil and gas in the Junggar Basin. In recent years, the Shelfoil Company has continued to support the technical services of cementing and completion tools in Yongjin Oilfield, and helped key projects such as Yongjin 11 well and Yongjin 7 well to achieve high production. Yongjin X well is a cooperative production well deployed by Xinchun Oil Production Plant and the Project Management Department of Shengli Petroleum Engineering Company Difficult to Move in the southern part of Yong301 well area in the western part of Chemogu uplift in the central depression of Changji depression in Junggar Basin. During the drilling process, it was found that the oil and gas display was good, but there were complicated well conditions such as high temperature, high pressure and easy leakage, which received the key attention of the bureau leaders of the oilfield company.

The application of the special liner hanger screen pipe top cement injection process tubing column technology has successfully solved the technical problems of liner cementing in long horizontal sections of high temperature, high pressure and leak prone wells in Yongjin oilfield and improved the quality of cementing, which was unanimously affirmed by the leaders at all levels of the oilfield and recommended to be promoted in a large area. Shelfoil will continue to support and serve the oil and gas development and construction in the Junggar Basin with high quality tool products and perfect integrated technical services, and become a value partner of global oil companies and petroleum engineering contracting service providers.