Hydraulic impactor cylinder block forming method for improving cylinder block structural strength

Abstract

The invention discloses a hydraulic impactor cylinder block forming method for improving cylinder block structural strength. The hydraulic impactor cylinder block forming method comprises the following process steps that a product structure is optimized, wherein after a welding process is cancelled, circular bead connection is adopted inside a product, stress concentration of the product is reduced, a reinforcing rib is additionally arranged in a liquid return hole, and the strength and rigidity of the product are improved. By means of the hydraulic impactor cylinder block forming method, theproduct structure can be optimized, stress concentration at the welded portion is avoided, the cylinder block structural strength is improved, waste of machining is reduced, the production efficiencyis improved, and cost is reduced; liquid nitriding and oxidation processes are adopted to a cylinder blocks at the later period, the inner wall of the cylinder block can be uniformly nitrided, the wear resistance of the inner wall of the cylinder block is improved, the lubricity is improved, and the service life of the cylinder block is prolonged; and a casting method is used for producing the hydraulic impactor cylinder block for petroleum drilling, the cost is greatly reduced compared with the conventional mechanical welding and processing processes, and the yield and productivity are also greatly improved, and the economic benefit is remarkable.

Description

technical field [0001] The invention relates to a relatively large range, in particular to a method for forming a cylinder body of a hydraulic impactor for improving the structural strength of the cylinder body. Background technique [0002] In the field of application of hydraulic jet impactor in oil drilling, its great potential and advantages are obvious to all. For example: 1. The manufacturing cost of the hydraulic jet impactor is low. 2. The hydraulic jet impact can work normally in a high confining pressure environment. Moreover, the hydraulic jet impact rotary drilling method has high energy utilization rate and rock-breaking effect. Well, the drilling cost is low and the operation is easy. However, ordinary roller cone drilling is expensive, and once an accident occurs, it will cause huge losses when the drill is buried or burnt. However, in actual work, we found that the key part of the impactor: the life of the jet element is reduced from 100 hours to 10 hours o...

AI Technical Summary

Problems solved by technology

However, ordinary roller cone drilling is expensive, and once an accident occurs that causes the drill to be buried or burnt, it will cause huge losses.

However, in actual work, we found that the key part of the impactor: the life of the jet element is reduced from 100 hours to 10 hours or even lower, which leads to an increase in the frequency of replacement of the impactor in oil drilling, which greatly increases the oil consumption. The cost of drilling has temporarily limited the application prospects of jet-type hydraulic impactors