A Strong Dynamic Composite Impactor Applicable to Deep Hard Formation

Abstract

The invention provides a strong dynamic composite impactor suitable for deep hard formations, which includes a motor sleeve, a circumferential hammer seat, and a sealing sleeve. A step extending inward is provided on the top of the inner side of the motor sleeve, and a motor stator is provided at the lower part of the step. , the outer side of the motor stator is fixedly connected with the motor sleeve, the motor rotor is installed inside the motor stator, the upper pressure plate is connected under the motor rotor, and the lower pressure plate used with it is provided under the upper pressure plate, and the lower pressure plate is connected to the The vibration shaft is provided with a spring on the downward step outside the vibration shaft; the contact surface structure between the upper platen and the lower platen is staggered, when the upper platen and the lower platen rotate relatively, the lower platen Move downward under the action of the upper platen, and rebound under the action of the spring to realize the impact of up and down movement. The invention can realize axial and circumferential load impact drilling, and ensure stable connection and movement of the device during the process, which is not easy to be damaged and can prolong the service life.

Description

Technical field [0001] Technical Field The present invention relates to the development of oil and gas fields, and particularly relates to an impact device, in particular a deep hard formations suitable strong composite force impactor. Background technique [0002] With the national oil and gas exploration and development and extensive use of resources, facilitate the exploitation of oil resources has been mostly developed, newly developed oil fields are mostly in difficult formation of the original is difficult to develop. Which encountered when drilling deep well, ultra-deep more and more, to meet the high rock hardness, high rock drillability value, a high abrasive rock formations is also increasing, which seriously affected the speed of drilling deep hard formation and exploration and development costs. In particular, most of the country's oil resources are located in deep hard formation difficult to develop, in order to ensure national energy security, to solve the hard form...

AI Technical Summary

Problems solved by technology

In order to improve the rock-breaking efficiency, generally, axial and circumferential double-dimensional rock breaking is carried out on the formation to improve the underground working efficiency. The impactor rotates in the opposite direction, but its structure depends on the obliquely engaged hammer head and hammer seat. The contact surface is only one side, and the limit structure is simple. After use and wear, it will cause positioning errors and affect the circumferential impact effect.

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