Drilling Collar
The drill collar is at the bottom of the drill string and is a major component of the lower hole assembly. Its main feature is that the wall thickness is large (generally 38~53mm, which is equivalent to 4~6 times of the wall thickness of the drill pipe), and it has greater gravity and rigidity. In order to facilitate the drilling work, the elevator slot and the slip groove can be processed on the outer surface of the internal thread of the drill collar.
Drill Collar Typesintroduction
Made of rolled or forged AISI 4145H chrome-molybdenum alloy steel for effective control of chemical and trace element content.
As a drill collar supplier, we can offer kinds of non mag drill collars for sale, if you are interested, please contact us.
We are one of the largest oil equipment suppliersfrom China. Our products are mainly used in oil, gas, geothermal and water well field drilling.
SAIGAO GROUPprovides high-quality oil and gas drilling equipment with excellent sealing performance. If you are looking foroil and gas equipment companies, please give us an opportunity to cooperate with you.
在线联系供应商
Other supplier products
 |
Manifold | Overview of china manifold A manifold is a combination of multiple pipes. The manifold includes gate valves, pipelines, pipe fittings, pressure ga... |
 |
LL-F Type Reverse Circulating Junk Basket | LLF type reverse circulating junk basket drillingis designed to remove all types of small junks such as bit cones, cutters and hand tools from the ... |
 |
BW240-10 Horizontal Three Cylinder Reciprocating Single Acting Piston Pump | BW240/10 Mud Pump is widely used in mining, drilling, coal, railway, highway, water conservancy and hydropower, bridges, high-rise buildings, found... |
 |
MZ Type Die Collar | MZ Type Die Collar MZ die collaris a special external fishing tool that engages with the dropped tubular s such as drill pipes casing and oil tubi... |
 |
F1300 Triplex Piston Mud Pump | The pump has features of advanced structure, small volume, reliable operation, easy maintenance The cylinder is made of alloy steel forgings, and... |
Same products
 |
Die Casting | 卖方: Dongguan Yuhui Die Casting Co., Ltd | Die Casting High-pressure die castingis a process in which molten metal is forced under pressure... |
 |
150*180*14.5/16 Crankshaft Seals Oil Seal | 卖方: Xingtai Subote Oil Seal Manufacturing Co., Ltd. | 150*180*14.5/16 Crankshaft Seals Oil Seal Tractors are generally operated outdoors. The wind, ra... |
 |
Cas 8001-26-1 Flax Seed Oil/Linum Usitatissimum Seed Oil | 卖方: Kaiping healthwise health food co., ltd | Linum usitatissimum seed oil is extracted from the linseed by SFE-CO2 Extraction. Cas 8001-26-1 l... |
 |
NATURAL HERBAL EXTRACT WHOLESALE POWDER | 卖方: Kaiping healthwise health food co., ltd | Traditional types of natural herbal extract wholesale use the advanced technology of Chinese medi... |
 |
Ginger Root Essential Oil | 卖方: Kaiping healthwise health food co., ltd | Ginger Root Essential Oil Ginger essence oil' s extracted from the root of ginger by SFE-CO2 ext... |
