



Drill Collar is the basic component in the BHA which provides weight on the bit for drilling and keeps the drill string in tension. JX Petro Drill Collar is manufactured from AISI 4145H modified quenched and tempered steel and is heat treated along its entire length for uniform toughness and durability. Strict metallurgical tests are performed per specifications to ensure that the heat treatment produces consistent and maximum hardness through the depth of the bar.
Drill collars are an essential component of the Bottom Hole Assembly (BHA) that provides weight on the bit for effective drilling. These heavy-duty pipes help maintain the drill string in tension and enhance the stability of the drilling process. Our drill collars are manufactured using AISI 4145H modified quenched and tempered steel, ensuring uniform toughness and high durability. The entire length of the drill collar undergoes heat treatment, and rigorous metallurgical tests are conducted to guarantee consistent hardness and maximum performance.
Drill collars are vital for providing weight on the drill bit, reducing vibration, and ensuring precise drilling operations. They are thicker and heavier than standard drill pipes, which allows them to exert significant force downward while keeping the drill string stable. The three main types of drill collars available are:
Slick Drill Collars: These have a smooth external surface and provide additional weight without increasing drag.
Spiral Drill Collars: These have helical grooves along their length to reduce the chances of differential sticking.
Non-Magnetic Drill Collars (NMDCs): These are used in environments where magnetic interference needs to be minimized.
All drill collars undergo stringent quality control measures and comply with industry standards to ensure superior performance and longevity.
Drill Collars < 7 inches:
Yield Strength: ≥758MPa
Tensile Strength: ≥965MPa
Four times elongation: ≥13%
Impact Energy Ak: ≥54J (Single Impact Work: ≥47J, Average: ≥54J)
Hardness Range: 285HB~341HB
Drill Collars ≥ 7 inches:
Yield Strength: ≥689MPa
Tensile Strength: ≥931MPa
Four times elongation: ≥13%
Impact Energy Ak: ≥54J (Single Impact Work: ≥47J, Average: ≥54J)
Hardness Range: 285HB~341HB
Drill collars can be tailored according to customer specifications, including size, thread type, and additional features.
Securely packed to prevent damage during transportation.
Available in wooden crates or as per customer requirements.
Global shipping options available with timely delivery.
Our company specializes in manufacturing high-quality drill collars and drilling equipment. We adhere to strict industry standards, ensuring our products meet the highest levels of safety, reliability, and efficiency.
High durability and strength due to heat treatment.
Reduced risk of pipe sticking with spiral designs.
Enhanced stability in drilling operations.
Customizable to suit various drilling conditions.
Competitive pricing and high-quality materials.
Extensive industry experience.
High-quality raw materials and manufacturing standards.
Customization options available.
Global shipping and reliable after-sales support.
Competitive pricing with superior performance.
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Better Petro maintains an extensive inventory of in-stock parts, Companion Flange, Double Studded Adapter, and electronic components, ready to ship to meet urgent requirements. Each part is meticulously sourced and rigorously tested to ensure compatibility and durability under extreme drilling conditions. By partnering with Better Petro, clients gain access to superior service, competitive pricing, and the assurance of keeping their drilling operations running smoothly and efficiently.