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.
Send product request
Other supplier products
 |
Drill Pipe | The drill pipe chinais a steel pipe with a tail thread for connecting the surface equipment of the drilling rig and the drilling equipment or botto... |
 |
CIRCULATING SWAGE | Saigao Circulating Swageis forged from high-grade steel materials and machined to the required specifications. After heat treatment and non-destruc... |
 |
External Sleeve Choke Valve | External Sleeve Choke Valve With integral cage design technology, inner annular space had been increased, and in this way, the possibility of corro... |
 |
BW1200 / 7 Horizontal Double Cylinder Reciprocating Double Acting Piston Pump | BW1200/ 7 slurry pump is a horizontal double cylinder reciprocating double-action piston pump. The power has electric driving and diesel driving. ... |
 |
Drill Pipe Circulating Swage | The top of Circulating Head DrillingSwage connects to the hoses,the bottom connects to the Drill Pipe. Main body is made from AISI4145H alloy st... |
Same products
 |
Die Casting | Seller: 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 | Seller: 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 | Seller: 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 | Seller: Kaiping healthwise health food co., ltd | Traditional types of natural herbal extract wholesale use the advanced technology of Chinese medi... |
 |
Ginger Root Essential Oil | Seller: Kaiping healthwise health food co., ltd | Ginger Root Essential Oil Ginger essence oil' s extracted from the root of ginger by SFE-CO2 ext... |
