• Tentech Energy Services(Shanghai) Co.,Ltd.上海琰田能源科技有限公司
  • Tentech Energy Services(Shanghai) Co.,Ltd.上海琰田能源科技有限公司
  • Tentech Energy Services(Shanghai) Co.,Ltd.上海琰田能源科技有限公司
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      DRILL COLLAR-STANDARD AND SPIRAL

      2014-10-30  Browse:1137times

      ● Connections are phosphate coated after machining to protect the threads from corrosive elements and to prevent galling upon initial make-up;
      ● Thread roots are cold rolled on API and H-90 connections;
      ● Pressed steel thread protectors are supplied for all drill collar that are equipped with standard connections

      When ordering please specify:
      ● Drill collar OD and ID;
      ● Overall length;
      ● Connections required (size and type);
      ● Special features desired, for example: Slick or Spiral;
      Stress Relief Features;
      Slip and/or Elevator Recess; Hardbanding;
      Specifications -  Drill Collar


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