Drill Collar
Usage :
One of the most important components of the drill string is to provide drilling bit of pressure and the drill string rigid role.
Standard :
API 7, API 7-1 and SY/T standards.
Material :
AISI 4145 H or Non-magnetic material.
Types:
Slick drill collars / Spiral drill collars / Non-mag material drill collars
Size :
OD : 3 1/8”---11”, Length : 10’---31’
Mechanical Property:
Mechanical Property of Slick and Spiral drill collars made of AISI 4145 H
OD Range Yield Strength(MPa) Tensile Strength(MPa) Elongation
(%) Hardness
(HB) Impact Test(J)
mm in
79.4～171.4 31/8～63/4 ≥758 ≥965 ≥13 285～341 ≥54
177.8～279.4 7～11 ≥689 ≥930 ≥13 285～341 ≥54
Mechanical Property of Non-mag Drill Collars
OD Range Yield Strength(MPa) Tensile Strength(MPa) Elongation (%) Hardness
(HB) Impact Test(J)
mm in
79.4～171.4 31/8～63/4 ≥758 ≥827 ≥18
177.8～279.4 7～11 ≥689 ≥758 ≥20
Other supplier products
|
|
Hole Opener |
The Fixed Diameter Hole Opener
It is made of tough heat treated alloy steel for maximum strength. Cutter arms, equipped with removable cutter, ar... |
|
|
Jar Intensifier |
Jar Intensifier Type YJQ
Jar Intensifier Type YJQ is designed on the principle of compressible fluid. It is used in conjunction with Fishing Jar T... |
|
|
Rotary Table |
Design Features：
Gear and pinion are made of alloy steel
Split main bushing is steel cast. Kelly drive and slip drive are available for choose.
S... |
|
|
Swivel |
Design Features：
Standard bail and double pin (male) alloy sub
The washpipe and packing are box structure, convenient to replacing on drill flo... |
|
|
Casing & Tubing |
Standard：
API SPEC 5CT Standard of American Petroleum Institute
Steel Grade:
J55, K55, N80, L80, N80-1, N80Q P110 etc．
Diamensional to... |
All supplier products
Same products
