Title: Method for making super-high-strength anti-corrosion pumping polished rod
Application Number: 200610114691 Application Date: 2006.11.21
Publication Number: 1952344 Publication Date: 2007.04.25
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: E21B17/00;C22C38/22;C22C38/44;C22C33/04;B21B37/74;C23C30/00;C21D1/10;C21D1/18;B24B1/00
Applicant(s) Name: Anton Oilfield Services (Group) Ltd. Address:
Inventor(s) Name: Huang Jinbin;Wu Zhenning;Xuan Cuixia;Zhang Gengjua
Attorney & Agent: caohong jin
Abstract:
    The invention relates to a production method for smooth sucker rod with ultra-high strength, comprising the following procedures. 1. Round bar of low alloy structure steel is prepared. 2. The blank of smooth sucker rod is prepared. 3. The blank surface of smooth sucker rod is sprayed and coated. 4. The blank of smooth sucker rod with alloy coating said above is remelted and cooled. 5. Smooth sucker rod is treated by tempering temperature. 6. Smooth sucker rod is polished. Finally, anti-corrosion smooth sucker rod with ultra-high strength is obtained. The smooth sucker rod by the method is applied in oil well with bad corrosive circumstance and prolongs the service time of smooth rod. Work times are decreased and oil production is improved.
Time: 19