Products

Mining Machinery Parts[6]

Contact Person : Mr. Wang Ray
Company Name : XIAN CHANGQING PETROLEUM TOOLS MANUFACTURING CO., LTD.
Tel : 86-29-86031607
Address : Shaanxi,xi'an,Jingwei West Road, Jing River Industrial Park ,Economic and Technological Development Zone, Xi'an, Shaanxi Province
Country/Region : China
Zip : 710201

api 7-1 spiral drill collar-Drilling tool

Product Detailed

Related Categories:Mining Machinery Parts
Related Product Searches:api 7-1 spiral drill collar-Drilling tool,High Quality drill collar,drill collar 4"-11"

Drill collar 1.standard:API7-1 2.OD:79.4mm-279.4mm 3.factory directly delivery 4.Moq: 25 tons

drill collar

1.standard:API7-1 2.OD:79.4mm-279.4mm 3.factory directly delivery4.Moq: 25 tons

5.Certificates : ISO ,API 7-1

6.We are factory

We are "Petrochina " subcompany

Descriptions:

Drill collars is one of the most important product of hexin oil drillings which mainly used to provide bit weight to drill so that drill pipe is in tension. Especially drill collar can keep drill bit centralized and hole track by large rigidity. GANG GONG brand drill collars are manufactured strictly from API Spec7-1 standard.

Type	OD(mm)	ID(mm)	L(m) ±152.4mm d	DF(mm) ±0.4
NC23-31	79.4	31.8	9.14	76.2
NC26-35	88.9	38.1	9.14	82.9
NC31-41	104.8	50.8	9.14or9.45	100.4
NC35-47	120.6	50.8	9.14or9.45	114.7
NC38-50	127	57.2	9.14or9.45	121
NC44-60	152.4	57.2	9.14or9.45	144.5
NC44-60	152.4	71.4	9.14or9.45	144.5
NC46-62	158.8	57.2	9.14or9.45	149.2
NC46-62	158.8	71.4	9.14or9.45	150
NC46-65	165.1	57.2	9.14or9.45	154.8
NC46-65	165.1	71.4	9.14or9.45	154.8
NC46-67	171.4	57.2	9.14or9.45	159.5
NC50-70	177.8	57.2	9.14or9.45	164.7
NC50-70	177.8	71.4	9.14or9.45	164.7
NC50-72	184.2	71.4	9.14or9.45	169.5
NC56-77	196.8	71.4	9.14or9.45	185.3
NC56-80	203.2	71.4	9.14or9.45	190.1
6-5/8REG	209.6	71.4	9.14or9.45	195.6
NC61-90	228.6	71.4	9.14or9.45	212.7
7-5/8REG	241.3	76.2	9.14or9.45	223.8
NC70-97	247.6	76.2	9.14or9.45	232.6
NC70-100	254	76.2	9.14or9.45	237.3
8-5/8REG	279.4	76.2	9.14or9.45	266.7
NC50-67	171.5	71.4	9.14or9.45	159.5

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