Rotating control head rubber core abrasion experiment equipment

Abstract

The invention discloses rotating control head rubber core abrasion experiment equipment and belongs to the technical field of abrasion experiment measuring equipment. The rotating control head rubber core abrasion experiment equipment comprises a vertical universal friction and abrasion testing machine, a test-piece rubber core clamp, a guide pipe and a stepping adjustable mud pump. Test-piece rubber cores fixed through a shell assembly and a fixing device in a main shaft and the clamp form a rotation pair and rotate relative to each other, a temperature control device and the stepping adjustable mud pump provide different experiment conditions for the experiment equipment, and the abrasive particle abrasion situation of the rubber cores in the unbalanced drilling process of a rotating control head is effectively simulated. The rotating control head rubber core abrasion experiment equipment solves the problem that at present, experiment equipment in the field does not achieve systematization and standardization, and research on the abrasion mechanism and the damage evolutional law is promoted; an accurate and reliable experiment basis can be provided for design, manufacturing and maintenance of parts related to the rotating control head rubber cores and the like.

Description

technical field [0001] The invention relates to the technical field of wear experiment measurement equipment, in particular to experimental equipment for wear of rubber core of a rotary control head, in particular to experimental equipment for simulating wear of rubber core of a rotary control head in underbalanced drilling technology. Background technique [0002] The rotary control head is the key equipment of underbalanced drilling technology. It mainly relies on the interference fit between the rubber core and the drill pipe, and uses the deformation of the rubber core to seal the drilling fluid pressure. Therefore, the performance of the rubber core determines the underbalanced drilling to a certain extent. construction capabilities. However, on the one hand, the investment in the research and development of the rubber core of the domestic rotary control head is insufficient, resulting in the lack of guidance of relevant standards and specifications for the design and p...

AI Technical Summary

Problems solved by technology

However, on the one hand, the investment in the research and development of the rubber core of the domestic rotary control head is insufficient, resulting in the lack of guidance of relevant standards and specifications for the design and production of the rubber core, and the inspection, transportation and storage guidelines are not perfect; on the other hand, there is a lack of system for the wear test of the rubber core Due to the lack of standardized and standardized experimental devices and equipment, the technical experiments in this field cannot obtain the surface morphology and surface composition of wear scars similar to those in actual production, and cannot promote the research on its wear mechanism and damage evolution law.

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