The key role of oil drill pipe in oil exploration and its application

As a core tool in the oil industry, oil drill pipe plays an indispensable role. It is a long and strong metal pipe that can withstand strong vibration and huge loads under high pressure and high temperature environment. Usually, oil drill pipe is made of several sections of steel pipes and is used for up and down movement during drilling operations. Oil drill pipe is widely used in oil and gas extraction operations. Its excellent durability and multiple use characteristics make it an essential equipment in oil exploration. Next, we will explore the various application scenarios of oil drill pipe in depth.

Construction and manufacturing of oil drill pipe

The structural design of oil drill pipe ensures that it can withstand huge internal and external pressure, twisting, bending and vibration in a complex downhole environment. The main body of the drill pipe is made of thick-walled seamless steel pipe, which is processed by multiple steps such as thickening, threading, copper plating, welding, etc. to ensure the strength and durability of the drill pipe during use. The length of the drill pipe is usually about 9 meters, and the specific size may be adjusted according to actual needs.

During the production process, the oil drill pipe is first thickened by the steel pipe to thicken the pipe wall to enhance its pressure resistance. Next, the threaded part of the drill pipe is plated with copper to improve its strength and wear resistance. After the thread processing is completed, non-destructive testing is carried out to ensure that the quality meets the standards. After the quality control inspection, the joint part of the drill pipe is welded and heat treated to eliminate residual stress and ensure the stability of the finished product under high load environment.

Application in oil exploration

Oil exploration is a crucial part of drilling operations, and oil drill pipe is a key tool in the drilling process. Drilling operations require the drill bit to go deep into the ground to explore the formation, and as the drilling goes deeper, the drill pipe needs to bear more workload and pressure. In this process, the oil drill pipe is not only used to transport drilling mud to the drill bit, but also responsible for transmitting torque so that the drill bit can rotate and cut the formation.

The threaded part of the oil drill pipe plays the role of connection and torque transmission. However, due to frequent tightening and loosening, the thread is susceptible to wear. Therefore, in order to extend the service life of the drill pipe, in addition to improving the joint material, processing accuracy and heat treatment process, it is also necessary to ensure that the thread tolerance range is reasonable to reduce wear.

Application in well repair operations

During the maintenance and repair of oil wells, oil drill pipes also play a vital role. When there is a blockage, dirt accumulation or other problems in the well, drillers will use drill pipes to send cleaning tools into the well for cleaning. The strength and flexibility of the drill pipe enable it to remove dirt, water and other impurities in the well during well repair operations to ensure the normal operation of the oil well. In addition, the drill pipe can also help drillers reopen the wellhead and overhaul equipment, so it is also indispensable in well repair operations.

Application in geothermal development

Geothermal development is a unique form of energy extraction, which aims to use heat energy deep in the earth for energy production. In the geothermal development process, oil drill pipes also play an important role. Through the drill pipe, drilling equipment can go deep underground, tap geothermal resources, and ensure the installation and maintenance of underground hot water steam pipelines. In addition, the drill pipe also plays an important role in the cleaning and repair of geothermal wells to ensure the sustainable exploitation of geothermal resources.

Application of oil drill pipe in other fields

In addition to its wide application in the field of oil and gas, oil drill pipe also plays an important role in other industries that require deep underground mining. For example, industries such as coal mining, natural gas, geothermal energy, etc. rely on the performance of drill pipes to complete the mining of underground resources. The continuous improvement and technological innovation of oil drill pipes have also promoted the rapid development of these industries and ensured the efficiency and safety of underground operations.

Working principle and advantages of screw drill tools

Screw drill tools are a device that converts liquid pressure energy into mechanical energy and are widely used in downhole power drill tools. During operation, when high-pressure liquid enters the drill tool, the rotor in the screw drill tool rolls in the stator, thereby generating torque and speed, and transmitting it to the drill bit through the universal shaft to achieve drilling operations.

Screw drill tools have significant advantages in directional drilling, deflection and well repair operations:
Increase drill bit torque and power: Screw drill tools can greatly increase the torque and power of the drill bit, thereby increasing the drilling speed.
Reduce the wear of drill pipe and casing: screw drill can effectively reduce the wear and damage of drill pipe and casing, and extend the service life of equipment.
Improve the accuracy of directional drilling: In horizontal wells, cluster wells and well repair operations, screw drill can provide higher directional accuracy and significantly improve the economic benefits of drilling.

Conclusion

As the core tool in oil and gas exploration and production, oil drill pipe is highly valued for its excellent performance in a variety of operations. Whether in oil exploration, production, oil well repair, or geothermal development, oil drill pipe plays a vital role. With the advancement of science and technology, the technology of oil drill pipe is constantly updated and improved, enabling it to undertake more complex and diversified tasks in future energy extraction and promote the sustainable development of the entire industry.