4 1/2" 8"API 4145h and Alloy Steel Drilling Tool Non-Magnetic Drill Collars

• Media: Water
• Temperature: Low Temperature
• Type: Direct-acting
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: API 4145h 6 1/2"
• Material: Carbon Steel
• Connection Form: Flange
• Pressure: Low Pressure
• Actuator: Manual
• Seal Surface: Wedge Gate Valve
• Thread Position of Valve Rod: Inside Gate Valve
• Usage: Regulation, Safety, Emptying, Drain
• Standard: GB
• Application: Industrial Usage
• Product Name: Drilling Tool
• Color: as Per Request
• Weight: Different for Each Size
• Name: Non-Magnetic Drill Collars
• Transport Package: Standard Export Packing
• Trademark: SEACO
• Origin: Shandong China
• HS Code: 84314310
• Package Size: 95.00cm * 30.00cm * 30.00cm
• Package Gross Weight: 390.000kg

Product Description

4 1/2" 8"API 4145h and Alloy Steel Drilling Tool Non-Magnetic Drill Collars
spiral API 4145H and alloy steel drilling tool non-magnetic drill collars

 

Product Description

Feature:

4 1/2" 8"API 4145h and Alloy Steel Drilling Tool Non-Magnetic Drill Collars
4 1/2" 8"API 4145h and Alloy Steel Drilling Tool Non-Magnetic Drill Collars
The Spiral Drill Collar is made from AISI 4145H modified alloy steel, and completely meets the requirement of API Spec 7-1 and SY/T5144 Standard. It is a kind of drill collar which adds three dextrogyrate spiral groove on the outer circle of ordinary drill collar when processing, and the purpose is to reduce the area of contact and friction with the well wall, which can effectively prevent the pressure sticking. The single weight of the spiral drill collar is round about 4% lighter than the ordinary drill collar with the same specification, and the shape and thread of the both ends are the same with the drill collar.
 

Drill Collar Specification
Thread Type	O.D.		I.D.		Length		Diameter of shoulder guide Angle	Reference bending strength ratio
	mm	inch	mm	inch	mm	inch
NC23-31	79.4	31/8	31.8	11/4	9150	30ft	76.2	2.57:1
NC26-35(23/8IF)	88.9	31/2	38.1	11/2			82.9	2.42:1
NC31-41(27/8IF)	104.8	41/8	50.8	2			100.4	2.43:1
NC35-47	120.7	43/4	50.8	2			114.7	2.58:1
NC38-50(31/2IF)	127	5	57.2	21/4			121	2.38:1
NC44-60	152.4	6	57.2	21/4	9150or9450	30ftor31ft	144.5	2.49:1
NC44-60	152.4	6	71.4	213/16			144.5	2.84:1
NC44-62	158.8	61/4	57.2	21/4			149.2	2.91:1
NC46-62(4IF)	158.8	61/4	71.4	213/16			150	2.63:1
NC46-65(4IF)	165.1	61/2	57.2	21/4			154.8	2.76:1
NC46-65(4IF)	165.1	61/2	71.4	213/16			154.8	3.05:1
NC46-67(4IF)	171.4	63/4	57.2	21/4			159.5	3.18:1
NC50-67(41/2IF)	171.4	63/4	71.4	213/16			159.5	2.37:1
NC50-70(41/2IF)	177.8	7	57.2	21/4			164.7	2.54:1
NC50-70(41/2IF)	177.8	7	71.4	213/16			164.7	2.37:1
NC50-72(41/2IF)	184.2	71/4	71.4	213/16			169.5	3.12:1
NC56-77	196.8	73/4	71.4	213/16			185.3	2.70:1
NC56-80	203.2	8	71.4	213/16			190.1	3.02:1
65/8REG	209.6	81/4	71.4	213/16			195.7	2.93:1
NC61-90	228.6	9	71.4	213/16			212.7	3.17:1
75/8REG	241.3	91/2	76.2	3			223.8	2.81:1
NC70-97	247.6	93/4	76.2	3			232.6	2.57:1
NC70-100	254	10	76.2	3			237.3	2.81:1
85/8REG	279.4	11	76.2	3			266.7	2.84:1
Note: 1.Drill collar thread type: NC-Digital IF-Internal flat type REG-Normal type
2.Bending strength ratio: the ratio of the modulus of the cross section and the modulus of the cross section of the cross section of the dangerous section of the inner thread
In addition, our company can produce the drill collar and spiral drill collar, which can also produce the special specifications of the drill collar and the high efficiency and wear-resisting lengthening drill collar

 

O.D.		cutting depth		Lead ±25.4
mm	in	A(mm)	B(mm)	mm
86	3.375	3.5±0.79	/	679
98.4	3.875	4.0±0.79	/	914
101.6~111.1	4~4 1/8	4.8±0.79	/	914
114.3~130.2	4 1/2~5 1/8	5.6±0.79	/	965
133.4~146.1	5 1/4~5 3/4	6.4±0.79	/	1067
149.2~161.9	5 7/8~6 3/8	7.1±1.59	/	1067
165.1~177.8	6 1/2~7	7.9±1.59	/	1168
181.0~200.0	7 1/8~7 7/8	8.7±1.59	5.6±0.79	1626
203.2~225.4	8~8 7/8	9.5±1.59	6.4±0.79	1727
228.6~250.8	9~9 7/8	10.3±2.37	7.1±1.59	1829
254.0~276.2	10~10 7/8	11.1±2.37	7.9±1.59	1930
279.4	11	11.9±2.37	8.7±1.59	2032

 

Advantages of Drill Collar Production Process

In the process of heat treatment, the drill collar has added a special normalizing process, which makes the thread part grain more refined, enhances the drill collar thread strength, and effectively improves the service life of the drill collar.

 

Sreel Mark	Chemical Composition %
	C	Si	Mn	P	S	Cr	Mo	Cu	Al
4145H	0.42~0.48	0.15~0.35	0.90~1.20	≤0.03	≤0.03	0.90~1.20	0.15~0.25	≤0.2	0.025~0.045
Other Elements:N≤0.015,Ni≤0.5

 

Drill Collar Mechanical Performance
Drill Collar Outside Diameter Range		Yield Strength		Tensile Strength		Elongation A%	HB	Charpy Impact Akv J
mm	in	MPa	Psi	MPa	Psi
79.4~171.4	3-1/8~6-3/4	≥758	≥110000	≥965	≥140000	≥13	285~341	≥54
177.8~279.4	7~11	≥689	≥100000	≥930	≥135000	≥13	285~341	≥54
Under special conditions, the impact work of the charpy can be determined as greater than 70J according to the supply and demand

 

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	127.0	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	254.0	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

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SEACO Oilfield Equip,is manufacturer & stockist of equipments,services and solutions to the upstream to downstream in oil & gas industry.We are aimed at helping customers to obtain the maximum from their each well.Providing our customers superior quality at the best value for products and services in order to ensure our customers' continued satisfaction.

 

Our main range include but not limited below:

 

1).Rig packages: 250hp to 3000hp Land drilling rigs; Workover rigs(Fast-moving rigs are available).

 

2).Rig components: Crown block;Travelling block; Hook; Swivel; Rotary table; Drawwork; Driller's cabin; MCC/SCR house; MCC/VD house; Top drive ect...

 

3).Wellhead & Pressure control equipments: BOP; Chock & Kill manifold; Pressure hoses; BOP closing unit; Casing&Tubing head; X-Mas tree; Valves; Spools and flanges ect...

 

4).Solid control & Mud system equipments: Shale shaker; Desander; Desilter; Mud cleaner; Hopper; Centrifuge; Agitator; Mud tanks; Unions,ect...

 

5).Tubulars & Drilling strings: Drill pipe; HWDP; Drill collar; Kelly; Casing; Tubing; Pup joint; Sucker rod; Line pipes ect...

 

6).Tubular Running and handing tools: Elevator; Slip; Manual/Power tong; HPU; Bushing; Spinner; Bit breaker; Spider; Links; Stuibing guide; Thread protector ect...

 

7).Downhole/Fishing tools: Drilling & Fishing jar; Stabilizers; Hole opener; Overshot; Drilling bit ect...

 

8).Cement tools: Cement unit;Float collar; Float shoe;Liner hanger;Cement head ect...

 

9).Others: Air winch; Drilling line; Safety equipments; Mud pump spare parts; Rig parts; Fittings ect...

 

10). Commissioning and other services.

 

Quality Control:

 

Quality admits no compromises.For this purpose.we exercise strict control on the starting materials.We ensure our equipments are manufactured to the international standards,producing per API,ISO or/and other applicable quality standards.We accentuate QA and QC monitoring & control processes to guarantee the quality.Our efforts is for providing the Customers with the peace of mind that when the equipment arrives on location,it is ready to go to work,and it will perform reliably.