How does the torque value of the drilling rig come from and what factors are it composed of?
We know that the torque of the trailer drilling rig is fixed, so how does the torque value of the drill pipe come from and what are the factors? The editor also learned that the factors that affect the torque value of the drill pipe are composed of the following aspects after consulting the technology. Let’s learn and sell it now: The torque value of the drill pipe is mainly determined by the specification, material and joint form of the drill pipe body as well as Variations in the production process yield different performance conclusions. Among them, the variation value is due to different materials and processes. The drilling depth of the drill pipe is related to the torque of the drill pipe, but the drilling depth is not determined by the torque of the drill pipe. It should be selected according to different geological conditions. Drill pipe for large trailer rigs, drill bit type to determine drilling depth. In this way, the torque of the drill pipe and the drilling rig is selected well, and then the corresponding drill pipe is selected according to the geological conditions of the operation, and the matching drill bit is selected to start construction. Of course, these are theoretical data, and specific problems in the construction process can be analyzed in detail.
The drill bit is one of the important drilling tools in the drilling of water well drilling rigs. It can be said that without the drill bit, the large trailer drilling rig cannot start production normally, which shows the importance of the drill bit in the water well drilling rig. For different types of water well drilling rig equipment, different drill bits are required in production. When selecting drill bits for water well drilling rig equipment, you should pay attention to the following aspects: 1. When producing in soft rock with better drillability, drill The speed is faster, and it is necessary to choose a larger amount of slag discharge and a higher quality of slag discharge, and the shape of four wings is selected. 2. When producing in hard rock, due to the high strength of the rock, each column tooth and drill bit need to bear a large rated load, so it is necessary to select a drill bit with a higher strength of the drill bit body and column teeth. 3. When drilling rocks containing clay, because the clay is relatively loose, the slag discharge hole is often blocked, so you can choose a side slag discharge drill bit. 4. When the trailer drilling rig manufacturer drills holes in rocks with better toughness, they can choose wedge-shaped tooth drill bits to ensure safe production.
The principle of dismantling the trailer drilling rig is generally to dismantle the rear installation first, and then dismantle the first installation. Drilling rig accessories remind you to pay attention to the following matters when disassembling: the disassembled gas, liquid, and water pipelines should be sealed to keep the inside and interface of the drilling rig clean to prevent debris from entering. When the drilling rig is disassembled, the fasteners should be packed separately and marked with a label or packed into a special packing box. Screws and nuts used for various connections should be packaged separately to avoid confusion between high-strength screws and nuts and other screws and nuts. The software of the air system should be free from oil, and the external threads of each pipeline should be wrapped with clean plastic cloth to avoid thread damage and keep the inside of the pipe clean. It is strictly forbidden to drop or touch the large trailer drilling rig during disassembly and hoisting, so as not to damage the machine parts. If long-distance transportation or long-term storage is required, it should be treated with rainproof, moisture-proof, and rust-proof treatment, and packed in a box, and the packing list should be filled out. All liquids (oil, water) in the equipment should be drained.
Trailer rigs use the weight of the drilling tool itself to impact the formation. The lower end of the drilling tool has several sharp-edged gripping flaps that can be opened and closed. When the drilling tool moves downward under its own weight, the gripping flaps open and cut into the rock formation. Then the hoist lifts the drilling tool through the wire rope, and the gripping flaps are closed During the process, the cuttings are caught in the cone, and the cuttings are discharged from the wellhead. The drilling depth is usually 40-50 meters, and the depth is 100-150 meters. Wire rope percussion drill. It consists of a mast, a hoisting pulley installed on the top, a wire rope, an impact mechanism, a drilling tool, and an electric motor. When the trailer drilling rig manufacturer is working, the motor drives the impact mechanism through the transmission device, and drives the wire rope to make the drilling tool reciprocate up and down. When it moves downward, it cuts into and breaks the rock formation by the weight of the drill bit itself, and when it moves upward, it is pulled by the wire rope. The stroke of the drill bit is 0.5-1 meter, and the impact frequency is 30-60 times/min. The cuttings are cleared out of the ground by the sand pump, and the drilling and removal of cuttings are carried out at the same time.
The maintenance content of the trailer drilling rig: clean the surface of the drilling rig, pay attention to the cleaning of the base slideway, vertical shaft, guide rod and other surfaces, and keep them well lubricated; check whether all exposed bolts, nuts, safety lock nails, etc. are firm and reliable; according to the requirements Lubricate; check the oil level of gearbox and transfer case; check the oil level of hydraulic oil tank; check for oil leakage and air leakage, and eliminate them; eliminate other faults that occur in the shift. Drilling rig weekly maintenance content: thoroughly carry out shift maintenance content; add lubricating grease to the vertical shaft box; eliminate grease or dust on the hydraulic chuck and lower chuck; lubricate according to weekly maintenance requirements; clean the inner surface of the brake. Monthly maintenance content for large trailer drilling rigs: complete weekly maintenance content; remove the chuck, clean the slips, slip seats, disc springs, etc., and change the oil for the thrust bearing; add lithium-based grease to the beam bearing; clean the oil tank Filter, replace the deteriorating hydraulic oil; check the lubricating oil in the gearbox, transfer case, and gyrator, and replace it in time if it deteriorates; check the technical status of each component, and replace it in time if it is damaged, and do not work while sick.
