Rotary reaming type guide shoe

Abstract

The invention discloses a rotary reaming type guide shoe, and belongs to the technical field of guide shoes. The rotary reaming type guide shoe comprises a sleeve and a guide shoe body; a connecting cylinder is in clearance connection with the interior of the sleeve, side cavities are formed in two ends of the connecting cylinder, springs are embedded and connected in the side cavities, and one end of each spring is in sliding connection with an abutting plate; the guide shoe body is fixedly connected with the bottom end of the connecting cylinder, and a rotating structure is fixedly installedin the guide shoe body; a connecting rod, a bottom plate, a rotating groove, a top plate, a lower bearing, a magnetic plate, a rotating shaft, a magnetic sheet and rotational flow plates are arrangedin the rotating structure; the bottom end of the connecting rod is in interference connection with the bottom plate, and the rotating groove is formed in the bottom plate; and the outer side of the rotating shaft is in interference connection with the rotational flow plates. According to the rotary reaming type guide shoe, through the installed connecting cylinder, clamping rods at the two ends of the connecting cylinder can be slidably clamped into clamping grooves through sliding grooves, the guide shoe body at the bottom end is driven to be rapidly clamped into the sleeve, then the installing and fixing effect of the guide shoe body can be improved, and therefore the using effect can be improved.

Description

technical field [0001] The invention relates to the technical field of shoe guides, in particular to a rotary reaming eye guide shoe. Background technique [0002] The English name of the guide shoe is Guide shoe, which is mainly used to prevent the bottom of the casing from being scratched or inserted into the well wall during cementing work, and guide the casing to go down to the bottom of the well smoothly. It is installed at the bottom of the casing string to guide Leading the casing into the well is used to prevent the bottom of the casing from being scratched or inserted into the well wall, and to guide the casing down to the bottom of the well smoothly. [0003] Well cementing is the construction operation of running casing into the well and injecting cement into the annular space between the wellbore and the casing. It is an indispensable and important link in the process of drilling and completion operations, which includes casing running and cement injection. [...

AI Technical Summary

Problems solved by technology

[0006] The above-mentioned floating guide shoes have the following disadvantages when in use: 1. The above-mentioned floating guide shoes cannot quickly fix the guide shoes and the casing when in use, so that the fixing effect of the guide shoes is poor

[0007] 2. The above-mentioned floating guide shoes cannot effectively discharge the mud inside the guide shoes during use, which may easily lead to mud clogging

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