During the drilling process, it is often necessary to spend a lot of time solving problems such as stuck pipes and other problems due to poor wellbore quality when drilling into loose, broken, and creeping strata, especially when drilling at large displacements; after completion, It is necessary to expand the hole after drilling and reduce the wellbore curvature and diameter reduction, which will increase the cost of drilling operations.

HUIRUI provides a durable and efficient shaft wall repair device with anti-jamming and shaft wall repair functions. The well wall fixer has the powerful function of preventing stuck and repairing the wellbore, which can make drilling smoother, and safer, and ensure the quality of the wellbore, thus greatly reducing the risk of stuck drilling. In short, using the well wall fixer can obtain a smooth and high-quality wellbore after drilling.

Unlike any previous centralizer tool, the innovative Bullshark centralizer has multiple functions, such as the outer diameter of the tool is innovatively designed with a spiral blade structure, which can contact the well wall 360 degrees; it is made of active cutting teeth and raised hard The double gauge structure composed of alloy gives it a powerful function of repairing the well wall; the tapered part of the blade adopts a combined design of triangular structure and PDC composite sheet, which can chop up the broken pieces of the well wall and introduce them into a larger space. To prevent the drill stuck. It has the following advantages:

1. Reduce the risk of drilling stuck due to obstruction during tripping and drilling;

2. Smaller well wall friction torque can achieve faster drilling speed;

3. Improve the durability of longer drilling distances;

4. A smoother and more stable wellbore is beneficial to completion operations;

5. Can be used with MWD/LWD.