What is the working principle of diamond core bits? The drill bit that makes the cutting edge is called a diamond core bit. The drill bit is an integrated drill bit. The entire drill bit has no moving parts. The structure is relatively simple, with high strength, high wear resistance and impact resi
What kinds of drill pipe can be divided into? The drill pipe is a steel pipe with thread on the tail, which is used to connect the surface equipment of the drilling rig and the drilling and grinding equipment or bottom hole device located at the bottom end of the drilling well. The purpose of t
How to classify core barrels? A section of pipe connected to the upper part of the drill bit to accommodate and protect the core during core barrel. This article will introduce the classification of core barrel. This article contains the following:n What is core barrel?n Single layer core barreln do
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Quantity: | |
16inch
ROSCHEN
ROS-HO-16inch
Product Description
HDD Hole Opener 16inch or TCI Hole Opener
HDD Hole Opener 16inch
Size | 16inch |
Cutter Type | Roller cutter for building 8 1/2" tricone bit |
IADC | 537 |
Roller Cutter Quantity | 5 |
Overall Length(mm) | 1400 |
Thread Connection | 4 1/2 IF pin & box(Customized) |
Application | Medium formations, such as medium shale, |
Performance feature:
1. Time saving, quick replaceable roller bit
2. Longer working life & fast penetration, HDD special design roller bit
3. Endure hole opener body, Tungsten pads applied stabilizer
Available size:
8″-48″
Hole Openers
A hole opener is a fixed diameter bore hole enlargement tool that is utilized to expand the well bore beyond the original hole size drilled by the bit. ROSCHEN has many different types of hole openers to meet the various applications.
Function of Hole Openers
The hole opener is generally used after the pilot bit has drilled the original hole. A hole opener consists of a body with roller cones or it could be a fixed blade that would be dressed with Tricone or PDC or crushed Carbide.
Key Features of Hole Openers
A hole opener is a cost effective way to enlarge a pre-drilled pilot hole or to ensure that the gauge is maintained in a deviated hole. A hole opener with a bull nose below helps to mitigate any potential side track issues in wiper trip applications.
Typical Application of Hole Openers
A hole opener is then tripped into the well bore to the beginning depth and then utilized to enlarge the pre-drilled pilot hole. This is the most typical, however, hole openers may be also utilized to ensure that the gauge of the pilot hole is intact, this method is generally known as a wiper trip. Wiper trips are best for deviated holes where trying to run the bit back to the end of the section could actually case a side track scenario in softer formations. Hole openers may also be utilized in the same drill string as the bit to perform a function of actually enlarging the well bore or ensuring that the bit gauge is maintained and clean up any formation beds that may accumulate throughout the section being drilled.