Description:
1. Material: 4145H/4145Hmod or Non-magnetic.
2. Standard: API7-1, NS-1.
A. Slick Drill Collar
Note: Drill collar is mainly used to provide bit weight to drill bit so that drill pipe is in tension. Especially drill collar can keep drill bit centralized and hole track by large rigidity. The Drill collar are manufactured strictly from API Spec7-1 and SY5411 standard.
B. Spiral Drill Collar
Note: Spiral drill collar is used to reduce contact area with hole so as to avoid efficiently bit sticking from diffirential pressure. The drill collars are manufactired strictly according to API Spec7-1 and Standard SY5144.
C. Spiral Drill Collar With Elevator Groove And Slip Groove
Note: Elevator groove and slip groove made on box thread face of slick drill collar or spiral drill collar can be used as lifting sub and safety slip when trip out. The technical parameters for elevator groove and slip groove is as per API SPEC7-1. Hardbanding is optional at customers’ requests.
D. Non-magnetic Drill Collar
The as cold rooled finish on both ID and OD surface with unique technical process strengthen the structure and ensures the tools with optimal resistance to stress,corrosion,cracking and the mechanical performance is greatly enganced.
Overview of Matrix Body PDC Bit GM1605T Matrix body PDC bit GM 1605T is made by Tungsten carbide powder, this type of matrix body bit is very high hardness material, mainly used for deep Oil&Gas well drilling. GREAT will first provide a 3D drawing according to the customers\' ...
Overview of Matrix Body PDC Bit GM1605T Matrix body OEM PDC bit GM 1605T is made by Tungsten carbide powder, this type of matrix bit body is very high hardness material, mainly used for deep Oil&Gas well drilling. Great Drill Bits will first provide a 3D drawing according to ...
Product Description Safety Clamps Type MPare necessary tools for handling drill collars, flush joint pipes and small shoulder pipes. They could adjust pipes of different sizes by changing the quantity of chain links. They are designed and manufactured according to 7k spec for ...
Overview of Matrix Body OEM Matrix Body PDC Bits GM1605T Matrix body PDC bit GM 1605T is made by Tungsten carbide powder, this type of matrix bit body is very high hardness material, mainly used for deep Oil&Gas well drilling. Cangzhou Great Drill Bits Co.,Ltd. will first ...
There are different kinds of drill collars,including round drill collar,spiral drill collar,non-magnetic drill collar,square drill collar and so on.Ordinary drill collar is the circular cross section, the center has a water hole,the wall thickness is larger,the nozzle is ...
We supply slick drill collars, spiral drill collars and non-magnetic drill collars; their sizes are from 3-1/8 to 11 inches. Besides the drill collars in the table below, we can supply other drill collars at customers\' request. Materials: Drill collars are manufactured from ...
12.5in Tricone Rock drill bit for oil well drilling Why tricone drill bit are most widely used Due to impact, crushing and shearing rock breaking when roller cone rotates, the contact area between cone and bottom hole is small, the specific pressure is high, the working torque ...
1. Product Description: Drill collars are integral heavy-wall joints that are manufactured from a solid bar of modified alloy steel. The solid bars are quenched and tempered to obtain the mechanical properties, then trepanned drifted and threaded. All drill collars are ...
1. Product Description: A drill bit is a device attached to the end of the drill string that breaks apart, cuts or crushes the rock formations when drilling a wellbore, such as those drilled to extract water, gas, or oil. The drill bit is hollow and has jets to allow for the ...