Seamless pipe for geological drilling
Seamless steel pipe for geological use: Steel pipe for geological drilling (YB235-70) is a steel pipe used for core drilling by the geological department. It is a hollow section.Long strip of steel without seams around. Steel pipes have a hollow section and are used in large quantities as pipes for transporting fluids, such as pipes for transporting oil, natural gas, gas, water and certain solid materials. According to the use, it can be divided into drill pipe, drill collar, core pipe, casing and sedimentation pipe.
Geological pipe use drill pipe: A connecting rod that connects a drill bit and transmits power in a drilling tool. The usual components of the drill string are: drill bits, drill collars, drill pipes, stabilizers, special joints and kelly bars. The basic functions of the drill string are: (1) starting the drill bit; (2) applying the drilling pressure; (3) transmitting the power; (4) conveying the drilling fluid; and (5) performing special operations: squeezing the cement, handling the downhole accident, and the like.
Geological pipe use drill pipe: A connecting rod that connects a drill bit and transmits power in a drilling tool.
The usual components of the drill string are: drill bits, drill collars, drill pipes, stabilizers, special joints and kelly bars. The basic functions of the drill string are: (1) starting the drill bit; (2) applying the drilling pressure; (3) transmitting the power; (4) conveying the drilling fluid; and (5) performing special operations: squeezing the cement, handling the downhole accident, and the like. Drill collar: Located at the bottom of the drill string, it is the main component of the lower drill assembly. Its main feature is that the wall thickness is large (generally 38~53mm, which is equivalent to 4~6 times of the wall thickness of the drill pipe). It has large gravity and stiffness, and it plays the following roles in the drilling process: (1 ) Applying bit pressure to the bit; (2) ensuring the necessary strength under compression conditions; (3) reducing the vibration, oscillation, and bounce of the bit to make the bit work smoothly; (4) controlling the well inclination.
In the practical application of geological pipes and geological drilling pipes: in order to find out the underground rock stratum structure, groundwater, oil, natural gas and mineral resources, use drilling rigs to drill wells. Oil and natural gas mining is inseparable from drilling wells. Seamless steel pipes for oil drilling for geological drilling are the main equipment for drilling, mainly including core outer tubes, core inner tubes, casings and drill pipes. Because the drilling pipe is deep enough to work in a depth of several kilometers, the working conditions are extremely complicated, and the drill pipe is subjected to stress such as tension, pressure, bending, torsion and unbalanced impact load, and is also subject to mud and rock wear. Therefore, the pipe is required. Must have sufficient strength, hardness, wear resistance and impact toughness. The steel for steel pipe uses “DZ” (the gravitational Chinese pinyin prefix) plus the number one represents the steel yield point. The commonly used steel number is 45MnB of DZ45，50Mn; DZ50 40Mn2, 40Mn2Si; DZ55 40Mn2Mo, 40MnVB; DZ60 40MnMoB, DZ65 27MnMoVB. The steel pipes are delivered in a heat treated state.
Geological pipe use drill pipe: A connecting rod that connects a drill bit and transmits power in a drilling tool. The usual components of the drill string are: drill bits, drill collars, drill pipes, stabilizers, special joints and kelly bars. The basic functions of the drill string are: (1) starting the drill bit; (2) applying the drilling pressure; (3) transmitting the power; (4) conveying the drilling fluid; and (5) performing special operations: squeezing the cement, handling the downhole accident, and the like.
Geological pipe use drill pipe: A connecting rod that connects a drill bit and transmits power in a drilling tool.
The usual components of the drill string are: drill bits, drill collars, drill pipes, stabilizers, special joints and kelly bars. The basic functions of the drill string are: (1) starting the drill bit; (2) applying the drilling pressure; (3) transmitting the power; (4) conveying the drilling fluid; and (5) performing special operations: squeezing the cement, handling the downhole accident, and the like. Drill collar: Located at the bottom of the drill string, it is the main component of the lower drill assembly. Its main feature is that the wall thickness is large (generally 38~53mm, which is equivalent to 4~6 times of the wall thickness of the drill pipe). It has large gravity and stiffness, and it plays the following roles in the drilling process: (1 ) Applying bit pressure to the bit; (2) ensuring the necessary strength under compression conditions; (3) reducing the vibration, oscillation, and bounce of the bit to make the bit work smoothly; (4) controlling the well inclination.
In the practical application of geological pipes and geological drilling pipes: in order to find out the underground rock stratum structure, groundwater, oil, natural gas and mineral resources, use drilling rigs to drill wells. Oil and natural gas mining is inseparable from drilling wells. Seamless steel pipes for oil drilling for geological drilling are the main equipment for drilling, mainly including core outer tubes, core inner tubes, casings and drill pipes. Because the drilling pipe is deep enough to work in a depth of several kilometers, the working conditions are extremely complicated, and the drill pipe is subjected to stress such as tension, pressure, bending, torsion and unbalanced impact load, and is also subject to mud and rock wear. Therefore, the pipe is required. Must have sufficient strength, hardness, wear resistance and impact toughness. The steel for steel pipe uses “DZ” (the gravitational Chinese pinyin prefix) plus the number one represents the steel yield point. The commonly used steel number is 45MnB of DZ45，50Mn; DZ50 40Mn2, 40Mn2Si; DZ55 40Mn2Mo, 40MnVB; DZ60 40MnMoB, DZ65 27MnMoVB. The steel pipes are delivered in a heat treated state.
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