Heavy Weight Drill Pipe
Heavy Weight Drill Pipe
Heavy weight drill pipeis a medium-weight drill tool similar to drill pipe,whose wall is thicker than that of drill pipe and thinner than that of drill collar. Its tube is connected with special length-added drill pipe joint(integral heavy weight drill pipe is made up of tube and tool joint). Among assemblies,it is generally added between drill pipe and drill collar to prevent sudden changes in cross-section of drill string,and reduce its fatigue. Using it to replace part of the drill collar can reduce torque, improve load,and increase drilling ability during deep well drilling;meanwhile pick-up sub and safety clamp will not be used drilling operation ,which is easy to operate and can save tripping time.It can drill in in high speed under low torque in directional wells and reduces the abrasion and fracture of string without differential pressure and sticking because of the lower steel grade than drill collar, small touching area with the well wall.
square Kelly China:Found Petroleum Equipment
If you are finding high quality and cheap API 7-1 Heavy Weight Drill Pip, you can choose us! We adhere to the principle of good faith cooperation and look forward to working with you as a partner!
CHEMICAL COMPOSITION
|
Integral heavy weight drill pipe |
||||||||
|
Size |
Outer diameter |
Inside diameter |
Joint outer diameter |
Joint inside diameter |
Connecting thread |
Slip max. diameter |
Upset middle diameter |
|
|
3 1/2 |
3 1/2 |
2 1/4 |
4 3/4 |
2 1/4 |
NC38 |
3 7/8 |
4 |
2 |
|
2 1/16 |
(4 7/8, 5) |
2 1/16 |
1 13/16 |
|||||
|
4 |
4 |
2 1/2 |
5 1/4 |
2 1/2 |
NC40 |
4 3/16 |
4 1/2 |
2 1/4 |
|
2 9/16 |
2 9/16 |
2 5/16 |
||||||
|
4 1/2 |
4 1/2 |
2 11/16 |
6 1/4 |
2 11/16 |
NC46 |
4 11/16 |
5 |
2 7/16 |
|
2 3/4 |
2 3/4 |
2 1/2 |
||||||
|
2 13/16 |
2 13/16 |
2 9/16 |
||||||
|
5 |
5 |
3 |
6 5/8 |
3 |
NC50 |
5 1/8 |
5 1/2 |
2 3/4 |
|
5 1/2 |
5 1/2 |
3 1/4 |
7 |
3 1/4 |
5 1/2 FH |
5 11/16 |
6 |
3 |
|
3 3/8 |
(7 1/4, 7 1/2) |
3 3/8 |
3 1/8 |
|||||
|
3 7/8 |
3 7/8 |
3 5/8 |
||||||
|
4 |
4 |
3 3/4 |
||||||
|
6 5/8 |
6 5/8 |
4 |
8 |
4 |
6 5/8 FH |
6 15/16 |
7 1/8 |
3 3/4 |
|
4 1/2 |
(8 1/4, 8 1/2) |
4 1/2 |
4 1/4 |
|||||
|
5 |
5 |
4 3/4 |
||||||
|
Spiral heavy weight drill pipe |
||||||||
|
Specification mm |
Tube |
Joint |
||||||
|
ID mm |
Elevator upsetmm |
elevator groove/Slip outside diameter mm |
Screw in diametermm |
Spiral groove depthmm |
Thread Type |
OD mm |
ID mm |
|
|
54 |
NC38 |
54 |
||||||
|
127 |
NC46 |
|||||||
|
127 |
NC50 |
|||||||
|
Steel Mark |
Chemical Composition% |
||||||||
|
C |
Si |
Mn |
P |
S |
Cr |
Mo |
Cu |
Al |
|
|
4145H |
≤0.03 |
≤0.03 |
≤0.2 |
||||||
|
Other Elements：N≤0.015，Ni≤0.5 |
|||||||||
|
Yield strength |
Tensile Strength |
ElongationA% |
HB |
Charpy impactAkv J |
||
|
MPa |
Psi |
MPa |
Psi |
|||
|
≥758 |
≥110000 |
≥965 |
≥140000 |
≥13 |
285～341 |
≥54 |
Product superiority:
In the process of heat treatment, a normalizing process is added, which makes the threads more granular, increases the thread strength, and effectively improves the service life of the product.
Weld heavy weight drill pipe:
Using the current domestic and foreign advanced heat treatment technology of friction welding deformation ,and heat affected zone smaller， welding process more simple and strict welding deformation and heat treatment standard procedure qualification, tuning parameters to ensure better welding quality more stable and reliable.
|
Welded heavy weight drill pipe |
||||
|
Type |
Outer diameter |
Inside diamter mm |
Joint type |
|
|
mm |
in |
|||
|
MJZ29-NC31-I/II |
2 7/8 |
NC31 |
||
|
MJZ35-NC38-I/II |
3½ |
NC38(3½ IF) |
||
|
MJZ40-NC40-I/II |
4 |
NC40(4FH) |
||
|
MJZ45-NC46-I/II |
4½ |
NC46(4IF) |
||
|
MJZ50-NC50-I/II |
127 |
5 |
NC50(4½ IF) |
|
|
MJZ55-5½ FH-I/II |
5½ |
5½ FH |
||
|
MJZ66-65/8FH-I/II |
Aug-65 |
65/8FH |
||
|
127 |
||||
Отправить запрос, связаться с поставщиком
Другие товары поставщика
 |
Sucker Rod Coupling Class T | Sucker Rod CouplingClass T Our company producedClass T Coupling,subcouplingand spray coupling, they are design according to API Spec 11 Bstandard.... |
 |
China Sucker Rod | Spray Anti-corrosion Sucker Rod It is a kind of manufacturability anti-corrosion sucker rod, the rod surface spraying a layer of special anti-corro... |
 |
Api Solid Sucker Rods | If you have any question on Grade Hy Sucker Rodand Api Solid Sucker Rods. We will give the professional answers to your short questions. Grade HY S... |
 |
high strength sucker rod | Grade HY Sucker Rod Grade HY Sucker Rod Description If you have any question on Grade Hy Sucker Rodand Api Solid Sucker Rods. We will give the pr... |
 |
Oil drilling equipment - Drill Collar | shares that there are different kinds of drill collars, including round drill collars, spiral drill collars, non-magnetic drill collars, square dri... |
Похожие товары
 |
STABURAGS NBU 8 EP 1KG Grease for Machinery Production Line | Продавец: Guangdong Juguangheng Automation Equipment Co.,Ltd. | NSK LR3 80G/PC 20PC,50PC/Carton NSK AS2 80G/PC 20PC,50PC/Carton ... |
 |
KLUBER PETAMO GHY 441 2KG for Pick and Place Machine | Продавец: Guangdong Juguangheng Automation Equipment Co.,Ltd. | N990pana-023 Panasonic MP Grease Kluber Isoflex Nbu 15 Grease Afc Lubricant K3036c K48-M3856-0... |
 |
KLUBER PETAMO GHY 133 N Grease for Placement Machine | Продавец: Guangdong Juguangheng Automation Equipment Co.,Ltd. | NSK LR380G/PC 20PC,50PC/Carton NSK AS280G/PC 20PC,50PC/Carton NSK LG280G/PC 20PC,50PC/Carton N... |
 |
KLUBER PASTE ME 31-52 750G Lubricants for Machinery Production Line | Продавец: Guangdong Juguangheng Automation Equipment Co.,Ltd. | ENEOS BONNOC M-220 Energy-saving extreme pressure gear oil 20L/PC ENEOS BON... |
 |
Rubber Wax | Продавец: King Honor International | Rubber wax Microcrystalline wax is widely used in rubber products with natural rubber and synthe... |
