Oil drill pipe is a major tool used in the exploration and development of oil and gas. It is the main part of the drill string, accounting for 80% to 90% of the entire drill string length. It is connected to the square drill rod at the top and the drill collar at the bottom. The drill pipe, square drill pipe and drill collar are connected as a whole through short sections, joints, etc. with drill pipe threads. Its main function is to transmit rotational torque and transport drilling fluid. Oil casing pipes are another crucial component in the oil and gas industry. They are used to line the wellbore after it has been drilled, providing structural integrity to the well and isolating different subsurface layers to prevent contamination between formations.
During the drilling process, the drill pipe is subjected to alternating effects such as tension, compression, bending, torsion, vibration load, rotation centrifugal force and additional dynamic load when drilling. At the same time, the acidic corrosive media dissolved in the drilling fluid and drilling mud and the oxides in the formation cause serious corrosion on the inner surface of the drill pipe. For gas drilling with high-pressure gas as the medium, the rock cuttings particles broken by the drill bit also have a great erosion on the outer surface of the drill pipe. These corroded and eroded drill pipes are prone to failure and fracture under stress, thus causing significant economic losses. In addition, improper use and maintenance of drilling tools may cause the drill pipe threads to stick together, or cracks may appear at the root of the drill pipe thread of the drill pipe joint. Even if these cracks are small, they will cause accidents if they are not discovered in time and continue to be used.
Application scenarios of oil drill pipes
1. Oil Exploration
Oil exploration is an important part of drilling. The drilling process requires the use of oil drill pipes to sink the drill bit into the ground in order to explore and exploit the strata. At the beginning of exploration, drilling requires the use of oil drill pipes to sink the drill bit into the ground in order to explore below the oil reservoir. Drilling work requires the use of a large number of oil drill pipes to move the drill bit down along the well wall.
2. Oil extraction
-Once the oil reservoir is found, it is necessary to use drilling equipment to extract it. In oil extraction, the oil drill pipe is an important tool. In the underground reservoir, the oil drill pipe can transport the oil pipe to the oil pool to bring the oil out of the underground.
3. Oil well repair
During the drilling process, oil drill pipes are installed between the drill bit and the platform in order to find new oil reservoirs. In oil well repair, oil drill pipes also play an important role. Petroleum engineers can use oil drill pipes to insert the drill bit into the well to remove dirt, water and other waste from the well. In addition, drillers can also use oil drill pipes to open the wellhead for more convenience during the drilling process. Therefore, oil drill pipes are extremely important in oil well repair.
4. Geothermal development
Geothermal development is a unique way of energy extraction, which aims to produce renewable energy by utilizing geothermal energy deep in the earth. In the process of geothermal development, oil drill pipes are also an important tool. Oil drill pipes can be used to dig underground hot water steam pipelines, as well as deep cleaning and repair of wellheads.
5. Pipeline Connection and Installation
Laying Down Casing: In many cases, the drill pipe also assists in the installation of larger casing strings that stabilize the wellbore. Drill pipes provide the necessary torque and strength to drive casings deep into the formation.
6. Corrosion and Abrasion-Resistant Applications
Challenging Formations: Drill pipes are often required in abrasive environments, such as drilling through hard rock or corrosive formations. Specialized coatings and materials are used to resist wear and extend pipe life.
Read more: Common Drill Pipe Connection
