API Drilling String Part Drill Collar

• Post Date:

  Nov 18,2017

• Expiry Date:

  May 17,2018

• Detailed Description:

  Quantity: 1FCL
  Specs:API
  Price:5000 USD Metric Tons
  Payment Method: TT, LC, West Union
  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:

  Lake Petro     [ China ]        

• Contact:

  Kaldrassil Moonfang

• Tel:

  +86-546-15764218693

• Fax:

  +86-546-7080025

• Email:

  lakepetro-008@qq.com