Drill Collars

Drill-collar configurations including spiral and non-magnetic executions, with groove and hardbanding requirements specified separately.

Configure your requirements
Drill-collar dimensional illustration; exact dimensions, connection and material must be confirmed for the selected execution.
Drill-collar dimensional illustration; exact dimensions, connection and material must be confirmed for the selected execution.

Sizes & capacities

Manufacturer reference configurations

Compare published specifications for each configuration, then select a reference or enter your own requirements. Supply and the final configuration are confirmed in the quotation.

Drill collar, 3 1/8 in OD, 1 1/4 in bore / ثقل حفر، قطر خارجي 3 1/8 بوصة وتجويف 1 1/4 بوصة

Technical example for this source execution only. Confirm the final dimensions, connections, material and service conditions for the enquiry. / مثال فني لهذا التكوين الوارد في المصدر فقط. يرجى تأكيد الأبعاد والوصلات والمادة وظروف الخدمة النهائية للطلب.

Outside diameter / القطر الخارجي
3 1/8 in — This source execution only. / لهذا التكوين الوارد في المصدر فقط.
Connection / الوصلة
NC 23-31 — This source execution only. / لهذا التكوين الوارد في المصدر فقط.
Bore / التجويف
1 1/4 in — Source bore tolerance +1/16 in / -0. / سماحية التجويف في المصدر +1/16 بوصة / -0.
Length / الطول
30 ft — Source length tolerance +6 in. / سماحية الطول في المصدر +6 بوصات.
Minimum yield strength / أدنى مقاومة خضوع
110,000 psi — This source execution only. / لهذا التكوين الوارد في المصدر فقط.
Minimum tensile strength / أدنى مقاومة شد
140,000 psi — This source execution only. / لهذا التكوين الوارد في المصدر فقط.
Minimum elongation / أدنى استطالة
13% — Gauge length: four times diameter. / طول القياس: أربعة أمثال القطر.
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Your specification

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Essential operating requirements

Optional example only. Its values apply only to the stated execution; confirm the final configuration in your quotation.

Describe the operating task and installation context.

Include size, length, connection type and drawings where applicable; state units.

State working pressure, temperature and units. Distinguish working and test pressure.

Describe the fluid, well conditions and any corrosive or sour-service requirements.

For matching equipment, provide its maker, model, serial number, interface or drawing. Compatibility must be confirmed.

Specify required drawings, material records, test reports, standards and inspection scope. No certification is presumed.

State whether a complete item, assembly, accessory or spare part is needed, with part references if available.

Next: contact details, quantity and delivery. Leave unknown requirements blank and request help in the RFQ.

Selection guidance

Specify the application, size, connection, operating pressure and temperature, fluid or service conditions, quantity and required documentation. Confirm the exact configuration before ordering.

Technical notes

The specification tables below describe documented example configurations only. Values are not interchangeable between executions; final dimensions, interfaces, materials and service requirements must be confirmed. Configuration enquiry only. Ratings, materials, connections and standards are specific to the selected execution and must be confirmed. No cross-model interchangeability or site approval is implied.