Milled Rotary Kelly Flats In Oil Drilling Equipment Per API Spec

Price Negotiable
Price: Negotiable
MOQ: 1
Delivery Time: 1 Months
Brand: xi'an rig
Product Description

Oil Drilling Equipment with precision milled Rotary Kelly flats meeting API specifications for and consistent drill string performance

1. Oil drilling rotary kelly with precision milled drive flats, manufactured to API specifications to deliver stable and consistent drill string performance during oil & gas rotary drilling.
2. API compliant rotary kelly with precision-milled flats. It transfers torque reliably and maintains steady drill string performance for oilfield drilling rigs.
3. Precision milled rotary kelly flats ensure accurate fit with kelly bushing, meeting API standards and guaranteeing consistent drill string operation.

A Comprehensive Introduction to Oil Drilling Equipment

 

Oil drilling equipment is the core complete-set machinery for oil and gas exploration and development — a large-scale, heavy-duty industrial equipment cluster integrating mechanical, hydraulic, electrical, automation and fluid-control technologies. Its core function is to drill wellbores into the formation, penetrating different geological strata to locate underground oil and gas reservoirs and build production channels for oil and gas extraction. It is widely applied across various oil and gas operation scenarios, including onshore, desert, swamp and offshore environments. The drilling equipment system as a whole is structurally complex, with clearly divided functions and coordinated operation. By function, it can be divided into five major sections: the eight core systems, the downhole drill-string assembly, well-control safety equipment, solids-control supporting equipment and auxiliary support equipment. All equipment is precisely matched and operates in synergy, ensuring that drilling operations are carried out efficiently, safely and continuously.

When ordering please specify:of Oil Drilling Equipment

  • Kelly type (square or hexagonal);
  • nominal size and overall length;
  • Upper and lower connections.
Nom Size (in) Standard O.D.(in) Bottom Connection‑Hex. O.D.(in) I.D.(in) Drive Section(in)
  Standard O.D.(in) Optional O.D.(in) Square O.D.(in) Hex. O.D.(in) Square Hex. A B
2 1/2 6 5/8 REG LH 7 3/4 4 1/2 REG LH 5 3/4 NC26 3 3/8     1 1/4 3 1/4  
3 6 5/8 REG LH 7 3/4 4 1/2 REG LH 5 3/4 NC31 4 1/8 NC26 3 3/8 1 3/4 1 1/4 3 3/8 3 3/8
3 1/2 6 5/8 REG LH 7 3/4 4 1/2 REG LH 5 3/4 NC38 4 3/4 NC31 4 1/8 2 1/4 1 3/4 4 7/16 3 15/16
4 1/4 6 5/8 REG LH 7 3/4 4 1/2 REG LH 5 3/4 NC46 6 1/4 NC38 4 3/4 2 13/16 2 1/4 5 1/2 4 25/32
4 1/4 6 5/8 REG LH 7 3/4 4 1/2 REG LH 5 3/4 NC50 6 3/8 NC38 4 3/4 2 13/16 2 1/4 5 1/2 4 25/32
5 1/4 6 5/8 REG LH 7 3/4   5 1/2 FH 7 NC46 6 1/4 3 1/4 3 6 3/4 5 29/32
5 1/4 6 5/8 REG LH 7 3/4   NC56 7 NC50 6 3/8 3 1/4 3 1/4 6 3/4 5 29/32
6 6 5/8 REG LH 7 3/4     5 1/2 FH 7   3 1/2   6 13/16
6 6 5/8 REG LH 7 3/4     NC56 7   3 1/2   6 13/16

Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Xi'an Rig Oilfield Equipment Co., Ltd.
Location 18th/F,Unit5, Eurasia Weiyang District, Xi' an, China 710016
Contact Person Jack yang

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