API 7 1 High quality 3 1/8 inch NC50 Spiral Drill Collar and non magnetic drill collar for sales
- Category: >>>
- Supplier: Dongying Kangya Petroleum Equipment Co. Ltd.
Share on (1600428490887):
Product Overview
Description
Product Description
Product Application
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.
Features
(1)Eccentric-weight drill collar is an effective anti-deviation drilling tool,with high drill pressure used in oblique areas,rectifying oblique as well.
(2)When drilling directional wells eccentric-weight drill collar is an effective tool to reduce oblique or straighten the well hole using high drilling pressure.
(3)Eccentric-weight drill collar has the advantages of simple structure,convenient use,connected directly to common drill collar without centralizers,greatly convenient for sinking in,fishing and milling operations.
(4)Eccentric-weight drill collar runs downhole safely,danger of leakage or bit freezing hard to appear.
(5)Pay much attention to avoid mud balling and prevent effect of anti-deviation .
Size | O.D(mm) | I.D.(mm) | Code | Thread | Length(mm) | Weight(kg) | ||||||
3-1/8 | 79.4 | 31.8(1-1/4) | NC23-31 | NC23 | 9140 | 298 | ||||||
3-1/2 | 88.9 | 38.1(1-1/2) | NC26-35 | NC26 | 9140 | 364 | ||||||
4-1/8 | 104.8 | 50.8(2) | NC31-41 | NC31 | 9140/9450 | 474/490 | ||||||
4-3/4 | 120.6 | 50.8(2) | NC35-47 | NC35 | 9140/9450 | 674/697 | ||||||
5 | 127 | 57.2(2-1/4) | NC38-50 | NC38 | 9140/9450 | 725/749 | ||||||
6 | 152.4 | 57.2(2-1/4) | NC44-60 | NC44 | 9140/9450 | 1125/1163 | ||||||
71.4(2-13/16) | NC44-60 | 9140/9450 | 1022/1056 | |||||||||
6-1/4 | 158.8 | 57.2(2-1/4) | NC44-62 | NC44 | 9140/9450 | 1237/1279 | ||||||
71.4(2-13/16) | NC46-62 | 9140/9450 | 1134/1172 | |||||||||
6-1/2 | 165.1 | 57.2(2-1/4) | NC46-65 | NC46 | 9140/9450 | 1352/1398 | ||||||
71.4(2-13/16) | NC46-65 | NC50 | 9140/9450 | 1249/1291 | ||||||||
6-3/4 | 171.4 | 57.2(2-1/4) | NC46-67 | NC46 | 9140/9450 | 1471/1521 | ||||||
7 | 177.8 | 57.2(2-1/4) | NC50-70 | NC50 | 9140/9450 | 1597/1651 | ||||||
71.4(2-13/16) | NC50-70 | 9140/9450 | 1494/1545 | |||||||||
7-1/4 | 184.2 | 71.4(2-13/16) | NC50-72 | NC50 | 9140/9450 | 1625/1680 | ||||||
7-3/4 | 196.8 | 71.4(2-13/16) | NC56-77 | NC56 | 9140/9450 | 1895/1960 | ||||||
8 | 203.2 | 71.4(2-13/16) | NC56-80 | NC56/6-5/8REG | 9140/9450 | 2040/2109 | ||||||
8-1/4 | 209.6 | 71.4(2-13/16) | 6-5/8REG | 6-5/8REG | 9140/9450 | 2188/2263 | ||||||
9 | 228.6 | 71.4(2-13/16) | NC61-90 | NC61 | 9140/9450 | 2658/2748 | ||||||
9-1/2 | 241.3 | 76.2(2-13/16) | 7-5/8REG | 7-5/8REG | 9140/9450 | 2954/3054 | ||||||
9-3/4 | 247.6 | 76.2(3) | NC70-97 | NC70 | 9140/9450 | 3127/3234 | ||||||
10 | 254 | 76.2(3) | NC70-100 | NC70 | 9140/9450 | 3308/3421 | ||||||
11 | 279.4 | 76.2(3) | 8-5/8REG | 8-5/8REG | 9140/9450 | 4072/4210 | ||||||
Mechanical properties:<7 inch Drill Collar:Yield Strength≥758MPa,Tensile Strength≥965MPa,Four times elongation≥13%,Impact energy Ak≥54J,(Single impact work≥47J,Average≥54J)Hardness range 285HB~341HB≥7inch Drill Collar:Yield Strength≥689MPa,Tensile Strength≥931MPa,Four times elongation≥13%,Impact energy Ak≥54J,(Single impact work≥47J,Average≥54J) Hardness range 285HB~341HB | ||||||||||||
Certifications
Package & Delivery
Company Profile
Dongying Kangya Petroleum Equipment Co.,Ltd.is a professional manufacturer and supplier of all types of petroleum equipment.The company is located in Dongying, the beautiful petroleum city at Yellow River Delta, covers an area of more than 330 million square meters.
And we have many years of history in the petroleum equipment industry.Our main products include drilling equipment,oil production equipment,wellhead equipment,well control equipment,downhole tools,OCTG pipe,\tvavle & pipe fitting and oilfield tools.
Currently,our products is already exported to America, Middle East, Australia,Africa and 20 other countries and regions.
Our company has always focused on research, development and innovation.Kangyapetro will initiate the second phase of our development strategy.Our company regards "reasonable prices, efficient production time and good after-sales service" as our tenet. We hope to cooperate with more customers for mutual development and benefits. We welcome potential buyers to contact us.
FAQ
1) How can I place order?
A: You can contact us by email about your order details, or place order on line.
2) How can I pay you?
A: After you confirm our PI, we will request you to pay. T/T and Western Union are the most usual ways we are using.
3) What's the order procedure?
A: First we discuss order details, production details by email or TM. Then we issue you an PI for your confirmation. You will be requested to do pr -epaid full payment or deposit before we go into production. After we get the deposit, we start to process the order. We usually need 15-25days if we don't have the items in stock. Before production has been finished, we will contact you for shipment details, and the balance payment. After payment has been settled, we start to prepare the shipment for you.
4)How do you take care when your clients received defective products?
A: replacement. If there are some defective items, we usually credit to our customer or replace in next shipment.
5)How do you check all the goods in the production line?
A: We have spot inspection and finished product inspection. We check the goods when they go into next step production procedure.
Related Products
API Hexagon Square Kelly
100% Response Rate
API 5DP Drill Pipe
100% Response Rate
API Heavy Weight Drill Pipe
100% Response Rate
We Recommend
New Arrivals
New products from manufacturers at wholesale prices
