Light large-power drilling mud pump

Abstract

The invention discloses a light large-power drilling mud pump. The light large-power drilling mud pump comprises a pump shell, a small gear shaft, a crank shaft, a large gear shaft, a gear ring, a connecting rod, a mud blocking plate and a fluid end, wherein the structure sizes of the pump shell, the small gear shaft, the crank shaft, the large gear shaft, the gear ring, the connecting rod, the mud blocking plate and the fluid end equal those of a pump shell, a small gear shaft, a crank shaft, a large gear shaft, a gear ring, a connecting rod, a mud blocking plate and a fluid end of a low-power-grade drilling mud pump, the overall Brinell hardness of the large gear shaft is HB235-265, and the Rockwell hardness of the tooth surface of the large gear shaft is HRC50-55. According to the technical scheme, on the premise that the weight of the whole set of equipment is not increased, operation reliability of the equipment is improved, product quality is guaranteed, purchasing cost of metal materials is reduced, and profits are practically improved. The population and the application of the light large-power drilling mud pump have huge economic and environmental benefits.

Description

technical field [0001] The invention relates to a drilling mud pump, in particular to a light-duty high-power drilling mud pump, which is mainly used in the field of oil drilling. Background technique [0002] With the development of oil drilling technology in the 1990s, due to the development of offshore deepwater oil and gas fields and the need for drilling a large number of horizontal wells, not only the power of the drilling rig was increased and the lifting capacity was enhanced, but the power of the drilling mud pump was also increased to 1470-1618kW (2000-2200hp) . The pump pressure is raised from 35MPa to 52.7MPa. This kind of mud pump with new parameters has been widely used in semi-submersible, floating drilling ships, and modified jack-up platforms. And served in the oil and gas development of the North Sea oilfield in the UK, the Gulf of Mexico oilfield in the United States, and the West African coast. In the South China Sea, the pump pressure of the 3NB1600 p...

AI Technical Summary

Problems solved by technology

[0004] Therefore, there are the following main problems for the existing mud pumps: the body is bulky and the drilling pump is heavy, which is difficult to adapt to the requirements of modern light drilling rigs, which restricts the mobility of the drilling rig; the stroke is short and the number of strokes is high. Work within the range of strokes, resulting in short life of the liquid end; low pump pressure, can not fully meet the needs of modern drilling technology

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