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Exploration and Practice of Independent Research and Development of Sand Control Tools

YANG Li-ping(CNOOC Energy Technology & Services Supervision & Technology Co,Tianjin 300452,China)  
In order to reduce the costs of offshore oil and gas production,and reduce the dependence on foreign downhole tools in the completion and production,CNOOC Supervision Technology company has carried out independent research and development program of downhole tools suitable for the specific situation of offshore oil and gas field in China.Based on the environmental characteristics,the whole spectrum of tool structure,buckle-type,seal,match of tolerance,tool selection and processing,etc.was analyzed and the key difficulties of material optimization and structural optimization of sand control tools were discussed and analyzed,and specific technical ideas and practical solutions were put forward after rigorous research.The newly developed conventional frac-packing completion sand control tool has been successfully applied in the offshore oilfields,which demonstrates that the newly developed tool,as the achievement of independent RD program,has the qualities of well-designed structure and excellent performance,and provides a good model of the localization of downhole tools for offshore oilfields.
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