API7-1 Spiral drill collar

FOB Price

USD $1,000 - $3,000 / Piece

10 Pieces(Min.Order)

Port Tianjin Shanghai
Payment TermsT/T

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Product Details

Place of Origin	China	Brand Name	SINOTAI
Model Number	drill collar	Type	Drill Collar
Machine Type	Drilling Tool	Certification	Other, API Spec 7-1,SY/T5144 Standard
Material	Other, AISI 4145H	Processing Type	Forging
Use	Well Drilling

Packaging Details

By the requirement fo customers or the standard packing

Product Description

Specifications

1.Spiral Drill Collar
2.API Spec7-1
3.AISI4145H
4.Professional Technicians,
5.Considerate Service

Spiral drill collar

Product Description

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.
Thechnical specifications and parameters

OD		Depth of cut(mm)	±25.4 Pitch(mm)	Depth of cut (mm)
mm	in	Depth of cut(mm)	±25.4 Pitch(mm)	Depth of cut (mm)
98.4	3 7/8	4.0±0.79	914
101.6~111.1	4~4 3/8	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	1626	5.6±0.79
203.2~225.4	8~8 7/8	9.5±1.59	1727	6.4±0.79
228.6~250.8	9~9 7/8	10.3±2.37	1829	7.1±1.59
254.0~276.2	10~10 7/8	11.1±2.37	1930	7.9±1.59
279.4	11	11.9±2.37	2037	8.7±1.59

Company Profile

Sinotai Petroleum Equipment Co., Ltd.

As a professional supplier of OCTG, drilling equipment and workover service, Sinotai Petroleum Equipment Co., Ltd. lies in the production base of petroleum equipment and China's second largest oil field --Shengi Oilfield. Our company is a high-tech enterprise in Dongying City with business scope covering the sale, trading, post-sale service and technological development of a wide variety of petroleum equipment. Besides OCTG, we provide our customers with other drilling and oil recovery equipment like fishing tools, cementing tools, workover rigs, pumping units and OCTG accessories. The striving target of our company is "Prestige first, Quality supreme; The shortest delivery time, The lowest price, The best quality". Customers' needs are our first priority and customer satisfaction is the bottom line by which we measure our success.

Contact Us

Sinotai Petroleum Equipment Co., Ltd.: Contact nameHerish Kuo
Chat Now; Phone86-546-8300512; AddressNo. 107, Bldg. 45, Gaoerfu, Wanda, Dongcheng

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Product Categories

Cementing tools	Down hole tools	Drilling Rig Accessories	Drilling Tools
Mud pump system	New Products	OCTG	Petroleum Instrument
Production Equipment	Protective Equipment	solid control system	Well control system
well head tools

API7-1 Spiral drill collar

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