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22
2021-09
Maintenance and Management of Geological Drill Pipe after Use
As an important part of the whole drill string, drill pipe is widely used in hydrological survey, geological drilling, oil and gas exploration and other fields. The quality of drilling tools, on-site maintenance and utilization, drilling accidents, construction costs and so on have a significant impact. The following Huanye Machinery Editor only discusses the use of friction welding drill bits and the maintenance management of the construction site, and discusses its surface knowledge. At present, there are four kinds of drill pipes in China's oil and gas industry: E75, X95, G105 and S135 steel grades. The drill pipe joints are mainly SAE4137H pipes, with drill pipe diameters of 23/8-65/8 and many specifications. The higher the steel grade, the higher the strength and the stronger the bearing capacity. But must
2021-09-22
22
2021-09
22
2021-09
18
2021-09
A Brief Introduction of Four Main Factors Affecting the Fatigue Strength of Welded Joints
Factors that affect the fatigue strength of the base metal (e. g., stress concentration, cross-sectional dimensions, surface conditions, loading conditions, media, etc.) also have an impact on the fatigue strength of the welded structure. In addition, some characteristics of the welded structure itself, such as changes in the performance of the joint near the seam area, welding residual stress, etc., may also affect the fatigue strength of the welded structure. To understand the specific effects of these factors is beneficial to improve the fatigue strength of welded structures. The impact of these factors is discussed separately below. 1. The influence of stress concentration in welded structure, due to different stress concentration in the joint part, they have strong fatigue effect on the joint
2021-09-18
16
2021-09
In view of the geological drill pipe in drilling soft coal seam is easy to produce cracks, desoldering, wear-resistant and other problems, it is difficult to make holes and even produce drill pipe fracture and other problems. The field test results show that the geological drill pipe of Yiguang Science and Technology has good comprehensive mechanical properties, strong hole-forming ability and long service life, which can not only replace the spiral drill pipe in soft coal seam, but also replace the regular rock drill pipe. The loose coal seam is a coal seam with hardness coefficient F1, which has the characteristics of soft coal, low permeability, high gas content and high pressure. In the process of gas extraction drilling construction, accidents such as injection holes, collapsed holes and boreholes are prone to occur, resulting in drilling.
2021-09-16
16
2021-09
Use safety of drill pipe triangular drill pipe grooving drill pipe and diamond drill bit
China's mining machinery and equipment will face a new round of industrial demand, especially the demand for drill pipes, drill bits and other accessories is becoming more and more extensive. More and more mining has just begun to use mechanization to improve mining efficiency and eliminate hidden safety risks. The degree of mechanization of coal mines, copper mines, zinc mines and other mines has greatly increased the market capacity of mining machinery and equipment. Drill pipes and drill bits should be safe when used, which requires us to strictly follow the use steps. Strictly check before use. In order to measure the diameter of the drill bit, the connecting thread should meet API standards, no damage, perfect gears and seals, no interaction between gears, and no crack welding
2021-09-16
16
2021-09
Geological drill pipe manufacturer Yikuang Technology explains the use of drill pipe bits
Linqing City Drill Pipe Factory Yikuang Technology manufactures various types of coal mine geological drill pipes, water probe drill pipes, spiral drill pipes, triangular drill pipes, PDC drill bits, diamond drill bits, etc. Geological drill pipe is the rod that connects the twist drill in the drilling equipment to the driving force Common components of the drilling team are twist drills, drill strings, drill pipes, thrusters, unique connectors and square drill pipes. the basic role of drill pipe is: (1) Tripping and tripping bit; (2) Application of weight on bit; (3) power transmission; (4) Conveying drilling fluid; (5) Special operations: squeeze cement and deal with downhole accidents. use of coal mine geological drill pipe: Drill pipe refers to the seamless steel pipe with external thread at the tail end of the twist drill, which is used to connect the surface equipment of the drilling machine and the drilling machine equipment or bottom hole equipment located at the bottom of the twist drill. The main purpose of the perforated pipe is to transfer the drilling fluid to the drill bit, and to lift, reduce or rotate the bottom hole equipment together with the drill bit. The drill pipe must be able to withstand large internal and external pressures, twisting, bending and vibration. In the whole process of oil and gas mining and refining, drill pipe can be used several times. The light pipe and the original seamless steel pipe are made into drill pipe after several times of production and processing. Care is first treated with steel pipe thickening process, the outer surface of the pipe is bent inward, and the wall of the steel pipe is thickened. Heat insulation broken bridge aluminum profile step, do a good job in thread processing, plating can improve the height of copper. Subsequently, non-destructive quality management experiments were carried out and the regulations for butt welds of seamless steel pipe bodies were followed. The pipe body has to undergo welding heat treatment and welding final solution to remove the welding residual working pressure. Avoid painting and testing seamless steel products before packaging, including hardness testing, stability testing and non-destructive testing.
2021-09-16
10
2021-09
Teacher's Day | popular thousands of miles do not forget the teacher's grace
Teacher's Day | popular thousands of miles do not forget the teacher's grace
2021-09-10
30
2021-08
What exactly is the "heat treatment" often used in welding? Look at this watch
General Heat Treatment Name of Iron and Steel Materials Heat Treatment Process Heat Treatment Purpose 1. Annealing heats the steel to a certain temperature, keeps it for a certain period of time, and then slowly cools it to room temperature ① to reduce the hardness of the steel and improve the plasticity, so as to facilitate cutting and cold deformation ② to refine the grain, homogenize the structure of the steel, improve the performance of the steel and prepare for future heat treatment ③ to eliminate the internal stress in the steel. To prevent deformation and cracking of parts after processing, annealing category (1) complete annealing heats steel parts to the critical temperature (the critical temperature of different steels is also different, generally 710-750 ℃, and the critical temperature of individual alloy steels can reach 800-90
2021-08-30
30
2021-08
The main measures to solve the burning and deformation of stainless steel sheet welding are: 1. Strictly control the heat input on the welded joint, select the appropriate welding method and process parameters (mainly welding current, arc voltage, welding speed). 2. Generally, smaller nozzles are used for sheet welding, but we recommend using larger nozzle diameters as much as possible, so that the weld protection surface during welding is larger, which can effectively and isolate air for a long time, so that the weld can form better. Strong oxidation resistance. 3. With Φ 1.5 cerium tungsten rod, the sharpness of grinding should be sharper, and the length of tungsten rod extending out of the nozzle should be as long as possible, which will make the base material faster.
2021-08-30
