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API Spiral Drill Collar

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Country: China (Mainland)
City: Xi'an

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update 03/12/2009
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Offer Description - API Spiral Drill Collar



Place of Origin: Sichuan China (Mainland) Brand Name: Reliance Application: Well drilling

Shape: Round Material: 4145H/ 4145H Mod. Chemical Composition: forging chrome molybdenu .

Type: Drill Collar Alloy Or Not: Is Alloy Brand Name: Reliance

Certification: API Processing Type: Forging Secondary Or Not: Non- secondary

Outside Diameter: 104. 78~275. 4 mm Thickness: 14. 29~112. 3 mm

Packaging & Delivery

Packaging Detail : Seaworthy packing

Delivery Detail A. S. A. P





Spiral Drill Collar/ Slick drill collar/ Oil drill tools

High quality, competitive price and excellent sales service

Spiral Drill Collar/ Slick drill collar/ Oil drill toolsProduct description: Sprial collar is processed by AISI4145H rolling or forging chrome molybdenum alloy steel. Chemical composition and microelement are effectively controlled. By adding three spiral flutes into the outside cylinder surface of the co mm on spiral collar, spiral collar lessen the contact area and friction force with the well face, keep the slurry moving evenly around the spiral groove, keep the drilling string balance, and prevent pressure differential sticking effectively. The Main Technical Specification of Spiral Drill Collar

O. D. I. D. Connections

inch mm inch mm

4- 1/ 8104. 7822- 1/ 450. 8057. 15NC31, NC35

NC35

4- 3/ 4120. 6522- 1/ 450. 8057. 15NC35,

NC35, NC38 (3 1/ 2IF)

6- 1/ 4158. 752- 1/ 42- 1 3/ 1657. 1571. 44NC46 (4 IF)

NC46 (4 IF)

6- 1/ 2165. 12- 1/ 42- 1 3/ 1657. 1571. 44NC46 (4 IF)

NC46 (4 IF)

7177. 82- 1/ 42- 1 3/ 1657. 1571. 44NC50 (4 1/ 2IF)

NC50 (4 1/ 2IF)

8203. 22- 1 3/ 16371. 4476. 206 5/ 8REG

6 5/ 8REG

9228. 62- 1 3/ 16371. 4476. 207 5/ 8REG

7 5/ 8REG

9- 1/ 2241. 3376. 207 5/ 8REG

10254376. 20NC70

11275. 4376. 20NC77

We are responsible for customers, strictly implement the standard specificaions, and provide high- quality products and serices. Sincerely hope to establish good trade relationship with all friends at home and abroad, with perfect product, outstanding quality and best services, our company is ready to cooperate witn you to develop a broader market. We are looking forward to your inquiry.
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