Eccentric drilling bit for down hole drilling rid of friction welding,drilling bits
1. Product description:
The eccentric bit is a bit whose center of the bit deviates from the axis line due to the asymmetrical distribution of steel body or tire body around the axis line of the bit.
When the bit turns, a lateral force (centrifugal force) is created to cut the hole wall, making the aperture larger.
The eccentric bit is used for the expansion of depth or easy shrinkage hole section under extended casing.
2. Drilling formation principle and factors for eccentric bit
During the follow-up drilling of complex formations, the selected drilling parameters should be based on the principles of low speed, low feed pressure, and high return air speed.
During the construction operation, the hardness and looseness of the rock in the drilled formation should be selected. Factors such as water content and water content control the drilling s peed.
3. Our company and services
Nailiang Machinery Equipment Co., Ltd. is a professional production and processing company for core drilling rigs, crawler drilling rigs, various track chassis, various types of mud pumps, various track transport vehicles, etc. It is one of the outstanding manufacturers of similar products in North China. Strong technical force. The modern production equipment and complete testing means are specialized in the development, manufacture and marketing of drilling rigs.
| Main Products | Drilling rigs |
| Models | XY-1,XY1-A,XY-1B,GK-180,GK-200,DPP-100 |
| Other drilling tools | drilling rods |
| drilling bits | |
| drilling joints | |
| drilling forks | |
| lock joints | |
| automatic drop hammers |
The company's main products are rigs: XY-1, XY-1A, XY-1B, GK-180, GK-200, DPP-100 and other series of drilling rigs: gearbox assemblies and gyro assemblies for various rigs, Winch assembly, reducer assembly, pump assembly. Drilling tools: sedimentary pipe joints, casing joints, casing couplings, drill pipe joints, casing core pipes, lifters, automatic drop hammers, earth borrowers, standard penetrations, forks, lock joints, alloy drill bits Hundreds of drilling tools, such as steel sand drill bits, core pipe joints, drill pipe pliers, and casing pliers.
Quality Control
We have our own experienced QC.
There will be strict inspection and testing for every order before shipping out.
After Sale Services
a. Our sales team will response for your question within 24 hours (Holidays Excluded)
b. Technical Support will be available in any time
c. Free replacement will provide once the failure confirmed caused by our product quality
Package and shipping
Packing : DTH DHD hammer will pack in cardboard and plywood case.
Shipping : DTH DHD hammer will ship by sea , by air , by Express , etc
