Screw drilling tool is a downhole power drilling tool powered by drilling fluid, and its core power component is a volumetric motor. Hydraulic energy is converted into mechanical energy, and the rotor drives the spindle and drill bit to rotate. The drill bit drills to achieve the purpose of drilling. The drilling tools of Shandong Walls Petroleum Equipment Co., Ltd. are easy to operate and reliable in performance. Drilling tools use various drilling fluids such as oil-based mud, emulsified mud, and clay mud as power fluids, with strong adaptability. They can be used for drilling special wells such as horizontal wells and cluster wells, greatly improving drilling speed and economic benefits.

At present, in addition to ordinary straight screw drilling tools, there are mainly the following forms of screw drilling tools

·1. Adjustable angle curved screw drilling tool: To improve the requirements of curved screw drilling tools for different inclination rates, the bending angle of the screw drilling tool can be adjusted on the well as needed. The length of the entire machine is shorter, and the inclination can reach>1 ·/m

·2. Equal wall thickness screw drilling tool: Equal wall thickness screw is a new type of screw drilling tool. It has shown greater advantages over conventional screw drilling tools in deep wells, large displacement, and short radius horizontal wells.

·3. Saturated saline mud resistant screw drilling tools: In order to ensure that the entire screw drilling tool can work for a long time in a saturated saline mud environment, a special drilling tool coating is used, which is more corrosion-resistant and wear-resistant.

·4. High temperature type screw drilling tools: In order to improve the high-temperature resistance of the stator rubber of screw drilling tools and meet the drilling needs of high temperature gradient areas, deep wells, and ultra deep wells under high-temperature conditions, high-quality high-temperature resistant rubber is used to manufacture the motor stator, which can increase the temperature resistance of the motor to 150 Above C.

·5. Sealed transmission shaft screw drilling tool: Replace the ordinary mud lubricated transmission shaft with an oil lubricated sealed transmission shaft, improve the working environment of thrust bearings and radial bearings, and extend the overall service life of the screw drilling tool