Self-balancing drilling and pulling mechanism with real-time monitoring function of bit pressure

Abstract

A self-balancing drilling and pulling mechanism with the function of real-time monitoring of bit pressure, including a primary fixed fuselage, a secondary oil cylinder feeding the fuselage and a power head support plate, and the secondary oil cylinder feeding the fuselage passes through the oil cylinder It is telescopically arranged on the primary fixed fuselage, and the secondary oil cylinder feed fuselage includes a fuselage body located in the middle of the hollow square steel on both sides. The free end of the telescoping rod of the oil cylinder, the power head supporting plate is located at the front side of the first-level fixed fuselage, and is connected to the The first stage fixes the fuselage to realize the up and down movement of the power head support plate through the up and down movement of the feeder fuselage through the second stage oil cylinder; thus, the present invention has simple structure, convenient operation, not only improves the pulling force, but also can carry out real-time monitoring, More practical and applicable.

Description

technical field [0001] The invention relates to the technical field of drilling equipment, in particular to a self-balancing drilling and pulling mechanism with the function of real-time monitoring of drilling pressure. Background technique [0002] During the drilling construction process, the drilling rig mainly has two working conditions: drilling and pulling out. [0003] During the drilling and pulling out process, the drilling pressure of the drilling rig is one of the most important drilling process parameters. During the drilling and pulling out process, the drilling pressure of the drilling rig has a great influence on the drilling construction effect, drilling efficiency and drilling quality. Real-time and accurate monitoring of WOB is required during drilling and pulling out. At present, the drilling pressure of the full hydraulic drilling rig is not directly measured, but is generally calculated indirectly by measuring the pressure of the two oil ports of the do...

AI Technical Summary

Problems solved by technology

To further increase the pull-out force of the drilling rig, either increase the number of steel wire ropes or increase the cross-sectional area of ​​the steel wire ropes, which will lead to a complex overall structure of the drilling rig and an increase in cost. In addition, each steel wire rope is affected by elastic deformation and assembly errors. It is difficult to precisely control the length. The more the wire ropes are, the greater the cumulative error will be, which seriously restricts the further improvement of the drilling rig capacity.

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