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The first cementing sliding sleeve with unlimited stages was successfully installed in place in Daniudi area
Author:Julong Liu    Readnum:1116       Datetime:2015-01-24 14:31

        The successful completion of the cementing operations for DPH-137 on January 8 marked our Company’s success in installing the first cementing sliding sleeve with unlimited stages in Daniudi area. 
        As it was the first time for North China Petroleum Bureau of Sinopec to apply the cementing sliding sleeve featuring unlimited stages, Party A attached high importance to its operation, and the leaders of SINOPEC Research Institute of Petroleum Engineering resided at the well site for guidance. It was reported that the barefoot interval of DPH-137 well was 3411m length, which posed great construction challenges. Moreover, the cold weather in Daniudi area in winter made the operation more difficult. Despite the biting wind and coldness, the well completion team of our Company held high sense of responsibility and satisfactorily completed operations for the well for five days and nights by carefully controlling the installation sequence of the sleeve and tools, ensuring smooth installation and strictly performing anti-freezing work for grouted pipeline. The success made a good start for 2015 work for the technical department of well completion.