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Oil Drill Collar 6 1/4"-Nc46 with API Spec 7-1

Oil Drill Collar 6 1/4"-Nc46 with API Spec 7-1

    • Oil Drill Collar 6 1/4"-Nc46 with API Spec 7-1
    • Oil Drill Collar 6 1/4"-Nc46 with API Spec 7-1
    • Oil Drill Collar 6 1/4"-Nc46 with API Spec 7-1
    • Oil Drill Collar 6 1/4"-Nc46 with API Spec 7-1
    • Oil Drill Collar 6 1/4"-Nc46 with API Spec 7-1
  • Oil Drill Collar 6 1/4"-Nc46 with API Spec 7-1

    Product Details:

    Place of Origin: China
    Brand Name: SHITAN
    Certification: API SPEC 5DP SY/T5561-2008
    Model Number: 6 1/4"-Nc46

    Payment & Shipping Terms:

    Minimum Order Quantity: 1 PC
    Price: USD1500-5000
    Packaging Details: Bundles
    Delivery Time: 10 working days
    Supply Ability: 6000 PCS per year
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    Detailed Product Description
    Key Words: Drill Collar, API 7-1, Drilling Tool H.S. Code: 8431431000
    Package: Bundles Processing: Forging And Integral Heat Treatment

    ​​Product Information
    Drill Collar is mainly used for providing drill bit with required drilling pressure, ensuring pull force transmitted to drill pipe and centralize the drill bit. According to API Spec 7-1 specifications, the material quality is 4145H that's after heat-treatment, thread hardening treatment and phosphating to better antiseize. It also can be produced upon customers' requirements.
    The parameter of drill collar according to API Spec 7-1 specifications.

    Drill Collar Thread Outside Diameter D Inside Diameter d Length Chamfer Diameter Reference Bending Strength Ratio
    L Df
    mm in mm in mm mm
    NC31-41(27/8IF) 104.8 4 1/8 50.8 2 9140or9450 100.4 2.43:1
    NC35-47 120.7 4 3/4 50.8 2 9140or9450 114.7 2.58:1
    NC38-50(31/2IF) 127 5 57.2 2 1/4 9140or9450 121 2.38:1
    NC44-60 152.4 6 57.2 2 1/4 9140or9450 144.5 2.49:1
    NC44-60 152.4 6 71.4 2 13/16 9140or9450 144.5 2.84:1
    NC44-62 158.8 6 1/4 57.2 2 1/4 9140or9450 149.2 2.91:1
    NC46-62(4IF) 158.8 6 1/4 71.4 2 13/16 9140or9450 150 2.63:1
    NC46-65(4IF) 165.1 6 2/4 57.2 2 1/4 9140or9450 154.8 2.76:1
    NC46-65(4IF) 165.1 6 2/4 71.4 2 13/16 9140or9450 154.8 3.05:1
    NC46-67(4IF) 171.4 6 3/4 57.2 2 1/4 9140or9450 159.5 3.18:1
    NC50-67(41/2IF) 171.4 6 3/4 71.4 2 13/16 9140or9450 159.5 2.37:1
    NC50-70(41/2IF) 177.8 7 57.2 2 1/4 9140or9450 164.7 2.54:1
    NC50-70(41/2IF) 177.8 7 71.4 2 13/16 9140or9450 164.7 2.73:1
    NC50-72(41/2IF) 184.2 7 1/4 71.4 2 13/16 9140or9450 169.5 3.12:1
    NC56-77 196.8 7 3/4 71.4 2 13/16 9140or9450 185.3 2.70:1
    NC56-80 203.2 8 71.4 2 13/16 9140or9450 190.1 3.02:1
    6 5/8REG 209.6 8 1/4 71.4 2 13/16 9140or9450 195.7 2.93:1
    NC61-90 228.6 9 71.4 2 13/16 9140or9450 212.7 3.17:1

     

    Equipment:

     

    Oil Drill Collar 6 1/4"-Nc46 with API Spec 7-1

     

    Oil Drill Collar 6 1/4"-Nc46 with API Spec 7-1

    Contact Details
    Shijiazhuang Coal Mining Machinery Co., Ltd.

    Contact Person: Mrs. Gina

    Tel: 86-311-85538986

    Fax: 86-311-85538888

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