Precautions during drilling rig construction
Release time:
2021-03-19
Drilling machine is used for drilling key machinery and equipment, in the application of drilling machine, safety is the most important, the following to understand the drilling machine in drilling
Some of the security FAQs:
1, point shot inclinometer must be in the square drilling tool hit, do not pick up a single strip before, inclinometer in the middle of tripping, every 1-2 minutes theme activity drilling
Prepare once, with a spacing of not less than two meters.
2, drilling often check the weight indicator, pump pressure gauge standard value, found that the suspension weight is reduced, pump pressure is reduced immediately search for the reason, first find the road surface, road edge
Therefore, the removal has not been recovered, and the drilling shall be carried out for inspection immediately.
3. During drilling, attention should be paid to the amount of sand on the vibrating screen. If gravel increases, it should be observed whether the sand sample collapses. Whether the drilling fluid is found to have reduced sand
characteristics change, carrying capacity is poor, should immediately take some effective measures to solve.
4. After tripping in, the drill bit leaves the well 2-3 meters lower (usually a single bar is mentioned) and the pump is started. When the pump is started, the diesel engine speed is 800-900 r/min. Stand
The pump pressure at the edge of the pipe rises to 5CPA to pick up the pump, and then starts the pump after lowering. The game will be played several times more. After checking the drilling fluid returned from the wellbore, the pump will continue to run. Diesel engine
The machine speed ratio is adjusted to 1150-1200 r/min when drilling. After the pump pressure is stable, the drill bit will lower the stop well at slow speed, and the extrusion will rotate slowly and stably.
When touching the geological structure, the cone bit runs for 30 minutes, the PDC bit well is designed to drill 0.3 meters in low shape, and then all the main parameters of drilling according to the design scheme.
Normal drilling.
5. Drill delivery: The spiritual essence should be centralized, and it can be delivered by point or slip. It is stipulated that the drill shall be well-proportioned, and the weight indicator shall be seen. In addition, the drum or the big rope shall be inspected.
Rate, to ensure that both closely follow the drill pressure and not slip drilling. Do not charge the bit to start the disc.
6. Before receiving a single strip, the drilling pressure should be slowly reduced to make the drill have a larger expansion space, reduce the overpressure of the drill bit, and increase the application of the drill bit.
Above is a detailed explanation of some common safety problems of drilling machines and equipment when drilling. Mastering this professional knowledge is for many people.
is very useful.
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