Integral string stabilizer is a very important downhole auxiliary tool in oil and gas equipment engineering, mainly used for installation on drill strings (i.e. drill rods, anti-theft drill rods, drill collars, etc.). Its core purpose is to ensure the center position of the drill string in the wellbore, thereby improving bridge efficiency and wellbore quality. The following is a detailed introduction to the drill string stabilizer:
1. The function of integral string stabilizer
l Keeping the drill string centered to prevent it from running against the wall.
l Improving the annular flow rate of the mud and enhance the effectiveness of wellbore cleaning.
l Reducing the frictional resistance between the drill string and the wellbore, and lower the air pressure and frictional resistance.
l Beneficial for the smooth insertion and rotation of the drill string.
l Protecting the wellbore and drilling tools
l Reducing the fatigue of the drill string on the wellbore and minimize the risk of wellbore fatigue.
2、 Key selection points
When choosing a drill string stabilizer, the following factors should be considered:
Well type (vertical well, directional well, horizontal well, etc.)
Wellbore size and structure
Drill pipe configuration (including drill pipe diameter, wall thickness)
Working conditions (well depth, pressure, temperature, abrasion)
3.Installation method
The stabilizer is usually fixed on the drill string through welding, brackets, threaded connections, and other methods.
The installation location should be arranged reasonably, and common layout methods include:
Set installation dimensions (e.g. every 30 meters)
Key section encryption installation (such as curved well sections, near casing shoes)
4.Usage effect
The correct use of drill string stabilizers can bring the following benefits:
✅ Improve drilling efficiency
✅ Reduce the risk of diamond jamming
✅ Improve the cleaning effect of mud
✅ Extend the sleep period of drilling tools
✅ Improve wellbore quality and dietary control
Post time: May-28-2025
