Drilling mud formula and automatic mud circulation purification device

Abstract

The invention discloses a drilling mud formula and an automatic mud circulation purification device, and relates to the technical field of drilling mud. The mud specifically comprises mud raw materials, and the mud raw materials comprise, by weight, 1000 parts of clear water, 20 parts of bentonite, 4 parts of polyacrylamide, 4 parts of vegetable gelatin, 6 parts of potassium humate, 3 parts of sodium carboxymethyl cellulose, 3 parts of ferrochrome sodium lignin sulfonate, 4 parts of sodium carbonate, 4 parts of barite fine powder, 3 parts of dry sawdust, 4 parts of asbestos and 5 parts of polyacrylamide flocculant. The high-quality bentonite is selected, so that the slurry has the advantages of low relative density, low viscosity, small sand amount, small water loss, thin mud cake, strong stability, strong wall fixing capability, small rotation resistance of a drilling tool, high drilling rate, high slurry making capability and the like; the viscosity of the slurry can be increased by using sodium carboxymethyl cellulose, so that a thin film is formed on the surface of the soil layer to prevent the hole wall from peeling off, and the effect of reducing the water loss is achieved.

Description

technical field [0001] The invention relates to the technical field of drilling mud, in particular to a drilling mud formula and an automatic mud circulation purification device. Background technique [0002] Hydrological well drilling is one of the important means to detect and exploit groundwater resources, and it is of great significance for socialist construction and transformation of nature. In recent years, with the acceleration of industrialization and urbanization in Shandong Province, the per capita water consumption in Shandong Province has increased year by year. Therefore, it is necessary to rely on hydrological drilling to seek to develop groundwater resources to solve such problems; The level decreases year by year, and the deeper the well is built, the more complicated the stratum to be drilled. In this way, it is not only necessary to develop a large number of new drilling technologies and new methods, but also to promote and apply these new technologies and...

AI Technical Summary

Problems solved by technology

[0003] During the current drilling construction of hydrogeological wells, the mud returned to the ground from the bottom of the well contains a large amount of cuttings and sand particles. After artificial sand removal, mud pools and sedimentation tanks, the solid particles in it can only be slightly reduced. Continue When using this kind of mud, a considerable part of cuttings and sand particles will inevitably enter the drilling pump with the mud and be sent to the bottom of the well again, resulting in a greatly shortened life of the drilling pump’s wearing parts and drill bits, a reduction in the drilling footage of the drill bit, and a significant reduction in the drilling speed. It will cause the drill pipe to get stuck during the drilling process; and because the mud flows through the mud pool and sedimentation tank below the ground and is recycled again, it is difficult to avoid the contamination of the surrounding soil by harmful substances in the mud during this cycle , as environmental protection construction does not meet the requirements

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