| After-sales Service: | 12months |
|---|---|
| Warranty: | 12months |
| Surface Treatment: | Polishing |
| Operation Pressure: | Atmospheric Pressure |
| Material: | 4145h, Alloy |
| Certificate: | API |
| Customization: |
|---|
Suppliers with verified business licenses
Audited Supplier API Drill Collar Spiral Drill Collar and Non Magnetic Drill Collar Nmdc for Well Drilling Oilfield
Spiral drill collar is made of alloy steel and the outside pipe has spiral grooves. it is an importand part of drill string, drill collar can supply the drill bit and increase the rigidity of drill string.
There are different kinds of drill collars,including round drill collar,spiral drill collar,non-magnetic drill collar,square drill collar and so on.Ordinary drill collar is the circular cross section, the center has a water hole,the wall thickness is larger,the nozzle is smaller, the weight of per unit length is greater than the size of drill pipe almost 4- 5 times .The majority of drill collar is thread processing directly on the pipe body , but some of them also use the replaced joint.
non-magnetic drill collar (spiral drill collar)
API 51 /2", 6 3/4", 8" Nmdc Non-Magnetic Drill Collar 31FT
11" non-magnetic drill collar
Standard:API Spec 7
Material:AISI 4145H, AISI 4145 H Modidied,Non-mag material
Specification:
OD:3 1/8"-11" Length:10'-31'
|
O.drill pipe thread type
|
O.D/mm(in)
|
I.D/mm(in)
|
L/mm
|
Chamfer diameter
DF/mm
|
Reference bending strength ratio
|
|
NC26-35(23/8IF)
|
88.9(31/2)
|
38.1(11/2)
|
9150
|
82.9
|
2.42:1
|
|
NC35-47
|
120.7(43/4)
|
50.8(2)
|
9150
|
114.7
|
2.58:1
|
|
NC46-62(4IF)
|
158.8(61/4)
|
71.4(213/16)
|
9150 or 9450
|
150
|
2.63:1
|
|
NC46-65(4IF)
|
165.1(61/2)
|
71.4(213/16)
|
9150 or 9450
|
154.8
|
3.15:l
|
|
NC50-70(41/2IF)
|
177.8(7)
|
71.4((213/16)
|
9150 or 9450
|
164.7
|
2.73:1
|
|
NC56-80 65/8REG
|
203.2(8)
|
71.4(213/16)
|
9150 or 9450
|
190.1
|
3.02:l
|
|
NC61-9075/8REG
|
228.6(9)
|
71.4(213/16
|
9150 or 9450
|
212.7
|
3.17:1
|
1) About Packing
Inner packing: white box, color boxes (upon request), Outer packing: cartons or pallets
2) Terms of payment:
We accept T/T,L/C
3)Terms of Shipment:
About 30 days after receiving the advance payment,or according to both parties agreement
4)Ports of shipment:
Tianjin,Qingdao, shanghai or other required Port, by sea or air
5)Guarantee:
One year since delivery.
6)Inspection:
100% testing before delivery.
Shandong Yacheng Petroleum Technology Co.,Ltd.(YCPT) is located in the second largest oilfield in Dongying city. We are the subsidiary of Xincheng Petroleum of Xincheng Petroleum Group,which was founded since 2003. We are first class supplier in vendor list of CNPC,SINOPEC,and CNOOC,and member of CCOIC, CCPIT and so on.
We have 19 years of experience in research,development and manufacturing of oil drilling equipment and drilling string, We have professional sales and after-sales service teams We are committed to develop, manufacture and supply of oilfield equipment, like oil and gas Gate Valve, Mud Pump and Spare Parts, Handling Tools,Drilling String, Well Control Equipments.
We have established a complete quality control system, all products & equipment manufactured as per international standard ISO 9001 and API standard. Based on our talented experienced technician team and sincerely marketing strategy, we have exported our products to more than 30 countries. The positive feedback from our clients are encouraging us to do much better and more strict on self-requirement. We will continue to provide quality products with favorable prices to all customers!
Welcome to Dongying city and visit our company. Let's open the delightful business cooperation!
1. who are we?
We are based in Shandong Province, China, start from 2016,sell to Eastern Europe(17.00%),Mid East(16.00%),Southeast Asia(16.00%),South America(15.00%),North America(14.00%),Eastern Asia(10.00%),Western Europe(8.00%),Oceania(2.00%),Africa(2.00%). There are total about 11-50 people in our office.
2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
3.what can you buy from us?
API 6A Gate Valve / Mud Pump Spare Parts / Handling Tools / Drilling String / API 16A Well Control Equipments
4. why should you buy from us not from other suppliers?
we have been exporting drill pipe, handing tools,mud pump parts and well control equipments to well-known oil service companies in the world .We are the first class supplier of CNPC,SINOPEC,and CNOOC.
5. what services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW,CIP,FCA,CPT,Express Delivery;
Accepted Payment Currency:null;
Accepted Payment Type: T/T,L/C,Credit Card,PayPal,Western Union,Cash;
Language Spoken:English,Chinese,Russian.
Suppliers with verified business licenses
Audited Supplier 
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