Views: 1 Author: pqwt Publish Time: 2023-01-31 Origin: PQWT
Drilling company drilling machinery maintenance.
1、Safety: implement the fixed person and machine and strict handover system, maintain the equipment carefully, use the equipment reasonably, strictly abide by the operating procedures, be familiar with the structure and operating characteristics of drilling machinery and equipment, monitor and pay attention to abnormal conditions, and ensure the safe use of equipment.
2、Tidy: arrange the drilling machinery workpieces, tools and accessories neatly; complete equipment parts and safety guards; various signs and nameplates should be complete and clear; pipelines and pipes should be installed neatly, safe and reliable.
3、Lubrication on time, according to the quality, according to the amount of oil and oil change, keep the oil mark eye-catching; oil tank, oil pool, cooling box should be clean, no iron chips and other debris; oil pot, oil gun, oil cup, oil nozzle, oil felt, oil pipe clean; oil pump works normally, oil path is smooth, bearing parts are well lubricated.
4. Clean equipment is clean inside and outside, no oil, dirt, rust, no waste debris; every relative movement of sliding surfaces (such as gears, rack, filaments, lamp rods, switch rods, shaft tiles, journals, etc.) is free of oil, bruises and hair pulling; no oil, water, gas or electricity leaks; the ground around the equipment is often kept clean.
Maintenance methods of water well drilling rigs
As we all know, during the drilling process, water always flows from high to low and heat is always transferred from high to low temperature. Water can be pumped from low to high to achieve the process of water flowing from low to high, and drilling can similarly transfer heat from low to high. Thus, a heat pump is essentially a heat lifting device that consumes very little electrical energy during operation, but can extract several times more from the ambient medium (water, air, soil, etc.). On these media, the temperature rises and is utilized, which is what makes heat pumps energy efficient. A ground source heat pump is a type of heat pump, an air conditioning technology that uses soil or water as a heat and cooling source to heat a building in winter and cool it in summer. It uses a very small amount of electricity to maintain the desired indoor temperature. In the winter, 1 kW of electricity sends 4-5 kW of heat from the soil or water source into the room. In summer, the process is reversed and the heat from the room is transferred through the heat pump to the soil or water to cool the air inside. The energy gained underground will be used in the winter. And so on, thus integrating the building space with nature. A comfortable living environment at a low cost. Geothermal is an inexhaustible, low-cost new energy source, a new energy product that benefits forever from a one-time investment. And environmental protection and health, is the preferred partner for community development of new energy. Generally, longitudinal buried pipes are used, and holes with a diameter of 160 mm are punched 50-80 m deep. Each hole is put into a single U-shaped pipe or a double U-shaped pipe, and the heat transfer efficiency of the double U-shaped is 1.25 times that of the single U-shaped, with a hole spacing of 4 meters. Operation requirements: first dig the ground 1 m, then start drilling, this table is used for the main connection, after the drilling is completed, immediately put down the heat exchanger tube, all heat exchanger tubes must be tested for pressure leakage before. Single U-shaped pipe down along the well section and up along the well section to the plastic bracket support opening
Volume crushing stage: When the drilling pressure is greater than the indentation hardness of the rock, the cutting teeth cut into the rock to produce volume crushing and the drilling effect can only be obvious and only normal drilling can be done. Therefore, the drilling pressure applied to the geared drill bit must meet the requirements of cutting teeth pressing into the rock and causing volume crushing of the rock.
Fatigue crushing stage: When the drilling pressure is close to the indentation hardness of the rock, the cutting teeth will not cut into the rock, but produce many cracks on the rock surface, and the repeated action of the cutting teeth will also produce volume crushing
Surface crushing stage: When the drilling pressure is less than the rock indentation hardness, the cutting teeth can't cut into the rock, but only crush the rock on the rock surface in the form of friction, and the cutting teeth wear more, although the drilling speed of small drilling machines also increases with the increase of drilling pressure and the proportion of
Fatigue crushing stage: when the drilling pressure is close to the rock indentation hardness, the cutting teeth do not cut into the rock, but produce many cracks on the rock surface, and by the repeated action of the cutting teeth, volume crushing is also produced
Surface crushing stage: When the drilling pressure is less than the rock indentation hardness, the cutting teeth can not cut into the rock, but only in the form of friction on the rock surface to break the rock, the cutting teeth wear larger, although small drilling machinery drilling speed also increases proportionally with the increase in drilling pressure, but small drilling machinery drilling speed is very low.
Drilling pressure is a necessary condition for rock breaking at the bottom of the well. The size of the drilling pressure determines the way and characteristics of rock breaking. In well drilling, the drill bit is subject to axial pressure and rotary force, and the cutting teeth are worn, blunted or damaged in the process of pressing into and shearing the rock, which inevitably affects the drilling speed. By doubling the drilling pressure and testing the tooth wheel bit to drill into different levels of rock, the results show that the drilling speed of small drilling machinery obtained when increasing the drilling pressure is different for different rocks. Among them, the growth rate of small drilling mechanical drilling speed is higher for medium-hard rock (rock level 6 to 7), while the growth rate for softer (rock level 4 to 5) and harder (rock level 8 to 9) rock is relatively insignificant. When drilling bonded soft rocks, it is easy to produce water plugging and paste drilling, and the drilling pressure should be chosen smaller.
Hunan Puqi Geological Exploration Equipment Research Institute is a professional institution engaged in the research of geological exploration water instrument equipment, and undertakes the "National 13th Five-Year Water Special Research Project" Puqi new generation of physical exploration water instrument has the characteristics of easy to carry, simple operation, automatic map formation, high accuracy, and its equipment has won a number of invention patents and software copyrights.