Screw drilling tool processing needs to be protected by composite machine tools

In order to ensure the precision of processing and meet the requirements of shape and position tolerance, it is necessary to avoid multiple times of loading cards in the processing and to complete multi-step processing with a single loading card. This is a processing method that is more emphasised by Deshi Machinery.

Dezhou United Oil Machinery Co., Ltd. (hereinafter referred to as “Deshi Machinery”) established a plant in 1970 and developed into a joint-stock company with a registered capital of 120 million. The company now has the most advanced product processing and inspection equipment in the industry, and has achieved API, ISO9001, HSE and other system certification, has more than 30 product patents. Deshi Machinery's products not only cover major oil fields in China, but also are the fixed-point enterprises for the production of the three major groups of PetroChina, Sinopec and CNOOC, and are exported to many countries and regions. They enjoy a high reputation in the international and domestic petroleum and petrochemical industries.

Deshi Machinery started with drilling mud pump accessories, breaking the situation that the product had been completely relied on imports since the 1980s, becoming the first domestic company to achieve domestic production of hydraulic pump hydraulic end fitting products, and gradually Started to manufacture whole products such as mud pumps. In 1987, Deshi Machinery began to develop screw drilling tools. After nearly 30 years of development, Deshi Machinery's screw drilling tools range from 43 to 286 high-speed, medium-speed, and low-speed drilling tools, and adapt to different temperatures. High-temperature drilling tools, and can be designed according to customer needs to meet the requirements of personalized screw drill. In addition, Deshi Machinery also produces a variety of downhole tools, non-magnetic products, wellhead facilities and oil production equipment.

Screw drilling tools are widely used for drilling, sloping and various workover operations in vertical wells, directional wells, lateral wells, horizontal wells, etc. in oil and coal mines, and can be used for compound drilling. A screw drilling tool is a volumetric downhole motor, which is powered by high pressure drilling fluid and converts hydraulic pressure energy into a power tool for mechanical energy. When the high-pressure drilling fluid pumped by the mud pump enters the screw drilling tool from the drill pipe, a liquid pressure difference is formed at the motor inlet and outlet, the rotor is forced to rotate, and the torque and the rotation speed are transmitted to the drill bit through the cardan shaft and the transmission shaft to realize the drilling operation. . The screw drilling tool looks simple and its structure is more complex. It consists of bypass valve, screw motor (rotor and stator), cardan shaft and drive shaft. The core part is the screw motor, which is also the key to improve the service life of the screw drilling tool. The importance of its machining accuracy is evident.

Deshi Machinery attaches great importance to the processing accuracy and position and position tolerance requirements of the screw drilling tools. In the process of processing, more than one process is used to complete the processing of multiple processes. This process concept can not only ensure the accuracy of processing, but also reduce the operator's processing intensity. The company has a variety of advanced processing and testing equipment. The special equipment of Deshi machinery processing motor rotor is the most advanced international equipment designed and manufactured by European experts. It guarantees the entire process from design, processing to inspection, and has high processing efficiency and high precision. . Deshi Machinery also owns machine tools of international brands such as Mazak in Japan, Doosan in Korea, Demagi in Germany, and a number of machine tools and machining centers manufactured by well-known machine tools companies in China and Taiwan, ensuring the accuracy of the parts. . There are three indicators to measure the performance of screw drilling tools: displacement, speed and torque. To meet the requirements of the customer's displacement and speed, it is a service objective of Deshi Machinery to provide high-torque, high-power screw drilling tools.