4145h 9in Intergral Weight Heavy Drill Collar Common Spiral Drill Collar

• Customization: Available
• After-sales Service: Support
• Warranty: Support
• Model NO.: YCPT
• Certification: CE, RoHS, ISO 9001:2000, ISO 9001:2008
• Power Source: Electric
• Operation Pressure: Atmospheric Pressure
• Applicable Medium: Crude Oil
• Structure: Vertical
• Material: Cast Steel
• Type: Spiral Drill Collar
• Length: 9150&9450mm
• Drill Pipe Material4145h: 4145h
• O.D.: 79.4-279.4mm
• Color: Red/Bule/Customize
• Delivery Date: 7-30 Days
• Shipping Method: by Sea, Express, by Air
• Transport Package: Standard Export Packaging
• Specification: Standard
• Trademark: YCPT
• Origin: China
• HS Code: 84314310
• Production Capacity: 500 Sets Per Month

Product Description

Pipe 4145H 9in Intergral Weight Heavy Drill Collar Common Spiral Drill Collar

Product Description

A. Slick Drill Collar

Note: Drill collar is mainly used to provide bit weight to drill bit so that drill pipe is in tension. Especially drill collar can keep drill bit centralized and hole track by large rigidity. The Drill collar are manufactured strictly from API Spec7-1 and SY5411 standard.

B. Spiral Drill Collar

Note: Spiral drill collar is used to reduce contact area with hole so as to avoid efficiently bit sticking from diffirential pressure. The drill collars are manufactired strictly according to API Spec7-1 and Standard SY5144

C. Spiral Drill Collar With Elevator Groove And Slip Groove

Note: Elevator groove and slip groove made on box thread face of slick drill collar or spiral drill collar can be used as lifting sub and safety slip when trip out. The technical parameters for elevator groove and slip groove is as per API SPEC7-1. Hardbanding is optional at customers' requests.

D. Non-magnetic Drill Collar

The as cold rooled finish on both ID and OD surface with unique technical process strengthen the structure and ensures the tools with optimal resistance to stress,corrosion,cracking and the mechanical performance is greatly enganced.

 

Technical specification and parameters 

Drill Collar Number	O.D		I.D		Length (mm)	Bevel Diameter	Refbend g Strength ratio
	mm	in	mm	in
NC23-31	79.4	3 1/8	31.8	1 1/2	9150	76.2	2.57:1
NC26-35(2 3/8 IF)	88.9	3 1/2	38.1	1 1/2	9150	82.9	2.42:1
NC31-41(2 7/8 IF)	104.8	4 1/8	50.8	2	9150	100.4	2.43:1
NC35-47	120.6	4 3/4	50.8	2	9150	114.7	2.58:1
NC38-50(3 1/2 IF)	127.0	5	57.2	2 1/4	9150	121.0	2.38:1
NC44-60	152.4	6	57.2	2 1/4	9150&9450	144.5	2.49:1
NC44-60	152.4	6	71.4	2 13/16	9150&9450	144.5	2.84:1
NC44-62	158.8	6 1/4	57.2	2 1/4	9150&9450	149.2	2.91:1
NC46-62(4IF)	158.8	6 1/4	71.4	2 13/16	9150&9450	150.0	2.63:1
NC46-65(4IF)	165.1	6 1/2	57.2	2 1/4	9150&9450	154.8	2.76:1
NC46-65(4IF)	165.1	6 1/2	71.4	2 13/16	9150&9450	154.8	3.05:1
NC46-67(4IF)	171.4	6 3/4	57.2	2 1/4	9150&9450	159.5	3.18:1
N50-67(4 1/2 IF)	171.4	6 3/4	71.4	2 13/16	9150&9450	159.5	2.37:1
NC50-70(4 1/2 IF)	177.8	7	57.2	2 1/4	9150&9450	164.7	2.54:1
NC50-70(4 1/2 IF)	177.8	7	71.4	2 13/16	9150&9450	164.7	2.73:1
NC50-72(4 1/2 IF)	184.2	7 1/4	71.4	2 13/16	9150&9450	169.5	3.12:1
NC56-77	196.8	7 3/4	71.4	2 13/16	9150&9450	185.3	2.70:1
NC56-80	203.2	8	71.4	2 13/16	9150&9450	190.1	3.02:1
6 5/8 REG	209.6	8 1/4	71.4	2 13/16	9150&9450	195.7	2.93:1
NC61-90	228.6	9	71.4	2 13/16	9150&9450	212.6	3.17:1
7 5/8 REG	241.3	9 1/2	76.2	3	9150&9450	223.8	2.81:1
NC70-97	247.6	9 3/4	76.2	3	9150&9450	232.8	2.57:1
NC70-100	254	10	76.2	3	9150&9450	237.3	2.81:1
8 5/8 REG	279.4	11	76.2	3		266.7	2.84:1

 

Remarks: We can produce drill pipe as per your request.

Raw Material performances

Steel Grade	Yield Strength		Tensile Strength
	Min(Mpa)	Max(Mpa)	Min(Mpa)	Max(Mpa)
E-75	517	724	100	689
G105	724	931	793
S135	931	1138	1000
R780	520	666	780	876

Drill pipe usage notes:

1.New drill pipe should be pasted oil before connection
2.Make up and break at least 3 times before drilling
3.Hard bending and plastic coating can be processed according to clients' special requirements

 

Size		Length in	Upper box connection				Lower pin connection		I.D.	Driving section
mm	in		Type(LH)		O.D.		Thread	O.D.		Cross flat	For square kelly	Cross corner for hexa kelly
			Std	optional	Std	optional
63.5	2 1/2	12.19	6 5/8REG	4 1/2REG	196.8	146.0	NC26	85.7	31.8	63.5	83.3
76.2	3	12.19	6 5/8REG	4 1/2REG	196.8	146.0	NC31	104.8	44.4	76.2	100.0	85.7
88.9	3 1/2	12.19	6 5/8REG	4 1/2REG	196.8	146.0	NC38	120.6	57.2	88.9	115.1	100.8
108.0	4 1/4	12.9	6 5/8REG	4 1/2REG	196.8	146.0	NC46	158.8	71.4	108.0	141.3	122.2
			6 5/8REG	4 1/2REG	196.8	146.0	NC50	161.9	71.4	108.0	141.3	122.2
133.4	5 1/4	12.9	6 5/8REG		196.8		5 1/2FH	177.8	82.6	133.3	175.4	151.6
			6 5/8REG		196.8		NC56	177.8	82.6	133.3	175.4	151.6

Company Profile

We shandong yacheng petroleum technology are established in 2003 year, located in Dongying city, shengli oilfield,which is  second largest oilfield of China. 

Our business scope includes oilfield equipment supply, such as, drilling equipment and spares, wellhead equipment ,oil recovery equipment. 
We have been served Shengli oilfield in the last 19 years, established a solid partnership and network with quality OEM factories. 
Based on our responsive and responsible  engineering & commercial team, we can provide one-stop shop service to our customer, and package plan of procurement which brings added value in terms of delivery time, fair prices, inventory in stock. 
We are Looking forward to build up partnership with your company and provide our attentive service to you.
 

Exhibition Style

 

Certifications

Packaging & Shipping

FAQ

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.