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Slick Drill Collar Slips And Elevator Grooves Can Be Produced Upon Customer - China

price: contact company for price

Drill Collar is the basic component in the BHA which provides weight on

the bit for drilling and keeps the drillsting in tension.

TIANHE Drill Collar has been approved by the NS-1 certification, it is manufactured from 4145H modified quenched and tempered steel, strict metallurgical specifications are followed to insure that full length heat treating produces a consistent maximum depth of hardness.

Features and Benefits

-A hardness range of 285 to 341 BHN and a Charpy impact value of 40 ft-lbs are guaranteed at evenly distributed 16 points in any sections at room temperature;

-Connections are completed phosphate coated to protect them from the elements after machining and to help 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;


Slips and elevator grooves can be produced upon the customers' requirement.

Company Contact:

  • Phone: +

  • Address: No.2999 ,XinYang Road,FengXian District, Shanghai, China

  • Email: Email

Published date: August 2, 2013 -

  • Business Description: Tianhe Oil Group,originally established in 1973, is a comprehensive

    enterprise of equipment manufacturing and oilfield service providing.

    We're specialized in innovating, manufacturing and sales of drill and

    petroleum extraction tools, equipments and oil field services.

    Tianhe Oil Group is a council member of CPEIA (China Petroleum and Equipment Industry Association), having been confered as a national Hi Tech company. Tianhe is a well known Chinese trademark. We've been certified in compliance with ISO, API, NS 1, and HSE management system,we have now high end machining centers like CNC turning centers from Mazak,all in one MILLTURN center from WFL Millturn Technologies GmbH&Co.KG as well as a wide range of other sophisticated tooling equipments.

    A strong domestic sales network has been established,covering all oilfields of CNPC, SINOPEC and CNOOC. Specifically today, we're exporting to 45 countries around the globe, overseas trading amount has topped over 80% of our business.

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