China Vigor Drilling Oil Tools and Equipment Co.,Ltd

Date: 22nd July 2016
Drill Collar
Vigor Drilling is one of pioneer Downhole Drilling Stabilizers manufacturers in Oil industry. 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.China Vigor?s 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 Box3.Hardbanding if required.4.Slip and Elevator Recess-to improve downhole handling efficiency and safety.If you are looking for competitive, high quality and fast delivery oilfield drill collar in stock, or if you are planning to buy drill collar API from one of the leading non magnetic drill collar, spiral grooved drill collar stock, hollow bar for drill collar, slick drill collar, aisi 4145h mod drill collar manufacturers and suppliers China, please feel free to contact VIGOR.
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Building No.4 I-City, South Tangyan Road,,High-Tech Zone, Xi'an, China.
Xian, 710065


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