Spiral And Screw Drill Collar - China

Our Downhole Drilling Stabilizers Drill Collar/Slick Drill Collar/standard Drill collar/Spiral Drill Collar/Non magnetic Drill collar/Drill collar hollow bar, all Drill collars are extra-heavy integral tools used to concentrate weight onto the drill bit for drilling and keeps the drill sting in tension.

Mill test certificate conformance to API Spec.

7-1, NS-1, DS-1 and Customer requirements.

Our company is the high quality drill collars manufacturers.

Slick Non magnetic Drill collar/ Non magnetic Spiral Drill collar/Flex Non magnetic Drill collar, they are function as housing for the MWD tools and provide weight for drilling string.

Drill Collar/Spiral Drill Collar, materials include AISI 4145H, AISI4145H modified steel and Non-magnetic.

Drill collars type they are Spiral Drill collar, Slick, Flex and with Slip and /or Elevator Recess.

Features and Benefits:

1 - API stress relief groove pin connection; API Bore back Box Connection.

2 - Cold Rolling Thread roots—to improve fatigue resistance of connection.

3 - Phosphate coated connections- to prevent corrosion and galling upon initial make-up.

4 - 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;

Special Features:

1 - Spiral Grooving- to avoid differential pressures sticking in the hole.

2 - Stress Relief Groove & Bore back Box

3 - Hardbanding if required.

4 - Slip and Elevator Recess-to improve downhole handling efficiency and safety.

Company Contact:

• Posted By: Dongying Lake Petroleum Technology Co., Ltd

• Phone: +865467080021

• Address: Huanghe Road, Dongying , Shandong , China

• Email:

• Website: https://www.lakepetro.com

• Business Description: We are a supplier from China for Oilfield equipment and tools: BOP, Mud pump, Valves, pipes, Handling tools, Downhole tools, Solid control, Wellhead control, flanges, fittings and spare parts.