Orchid Energy could supply slick type drill collar, spiral drill collar and Non-magnetic drill collar (NMDC).
Orchid Energy
19 Products beijing, China
DeRun Energy Co could provide slick drill collar,
spiral drill collar, non-magnetic drill collar, flex non-magnetic drill collar
with API
34 Products Beijing, China
Product Specification
Standard: API 5DP
Material: heavy duty plastic
Size: NC26~ NC50 or
5 Connections 20 Products xian, Shaanxi
Senwell is a professional supplier and exporter of Racks for Drill Pipe, Drill Collar, Tubing, Casing,
Detailed Product Description
drill collar
1)Out diamete: 3 7/8"~ 14"(inch)
2)Depth of cut: 4.0 ~ 11.9 (mm)
1 Connection 23 Products Beijing, China
Detailed Product Description API 7-1,drilling collar 10,000 Pcs / every year(drill collar,spiral drill collar,heavy weight drill pipe)
with the range 3-1/8"—11”, in accordance with the API
Detailed Product Description 1.Alloy steel,carbon steel,stainless steel etc.
2.API Spec.
3.Factory directly
4.Timely
Specifications: DRILL COLLAR API SPEC 7-1: 89 105 121 146 159 165 178 203 It's made from rolled or forged AISI4145H chrome-molybdenum steel.DRILL
11 Products Taiyuan, China
The drill collar are made of 4145H modified chromium-molybdenum alloy steel according to API Spec 7 and aSY/T 5144 . All threads can be phosphated
Standard:API Spec 7-1, API RP 7G
Material:Nonmagnetic alloy steel
Type: Nonmagnetic
Length: 30 or 31ft
Ensured quality
Nonmagnetic
58 Connections 30 Products 4 Shipments 1 Customer Beijing, China (Mainland)
The spiral drill collar is one of our product families. Three RH spiral grooves is
made in outside surface of drill collar in order to
10 Products taiyuan, China
Detailed Product Description
It reduces the contract area with the wellface and the steering resistance,which can prevent differential
33 Products Jinzhong, China (Mainland)
1.API Spec 7-1
API Recommended Practice 7G
API Q1 Latest Edition
2.NNC threads (interchangeable with API NC threads)
As the company who manufactures the first drill collar in CHINA, SFMC has been manufacturing drill collars for more than 30 years. All SFMC drill collars are made of AISI 4145H or AISI 4145H Modified alloy steel in accordance with API Specification 7-1,API Recommended Practice 7G and API Q1 Latest Edition. The bores are trepanned from one direction with no mismatch. All drill collars are of Q&T full length by SFMC's own unique Power Frequency Induction Heating Treatment machine designed by SFMC, so as to ensure the Charpy "V" notch minimum impact strength of 40 ft/lb at 70°F and to guarantee the hardness from 285 to 341 BHN below the
32 Products Beijing, China (Mainland)
Type: the single arm/arms
Tonnage: 30 T to 350 T
Products: inventory
origin:Baoji
Hejian Fist Petroleum Equipment
33 Products 2 Shipments 2 Customers HeJian, China (Mainland)
The drill collar is machined according to Chinese standard SY/T5144-1997 "Drilling Collar" and API 7-1 "Specification for Rotary Drill Stem Elements
competitive price and complied with API standard
Key Specifications
Place of Origin Shaanxi, China
Made from low magnetic stainless alloy steel
Non-magnetic Drill Collars are made with low magnetic stainless alloy steel by combining
Detailed Product Description The drill collar is mainly used to provide bit weight so that drill pipe is in tension.Our company can
Drill Collar
Technical features
l A hardness range of 25 to 341 BHN and a Charpy impact value of 4
5 Products xi'an, china
"Dongchen" drill collars are made with material AISI/SAE 4145H in accordance with API Spec 7-1. We supply slick drill collars and spiral drill collars
15 Products 10 Shipments 1 Customer Wuxi/Jiangsu, China
