Hole Size (in)
|
Input Flow Rate (L/S)
|
Pressure (mpa)
|
Bit Speed (r/min)
|
Output Power (kw)
|
3 1/4-4 3/4
|
2-4
|
3.2
|
80-160
|
5.8-11.5
|
4 1/8-5 5/8
|
3-8
|
3.2
|
147-392
|
8.64-23
|
4 1/8-5 7/8
|
5-12
|
3.2
|
140-320
|
10.5-25
|
6-7 7/8
|
8-16
|
3.2
|
80-180
|
23-47
|
8 1/8-9 5/8
|
18-30
|
3.2
|
111-167
|
57.6-86.4
|
8 1/8-9 5/8
|
18-30
|
4
|
120-180
|
72-108
|
Casing centralizer is a device used to place the casing at the center of the hole so as to improve the efficiency of the cementing. It is an important device because if the casing centralizer touches the formation at any part of the hole, then cement slurry does not pass ...
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 ...