A new type of bumping floating hoop

Abstract

The present invention provides a new type bumper type floating hoop, which includes a floating hoop body, and the inner cavity of the floating hoop body is provided with a bumper seal seat body, a sealing insertion head, a sealing insertion head mandrel, an overcurrent plate and spring; the overflow plate is installed in the middle of the inner cavity of the floating hoop body, and the core rod of the sealing insertion head passes through the center hole of the overflow plate; the spring is sleeved on the core rod of the sealing insertion head, and the sealing The bottom of the core rod of the insertion head is fixedly connected with the top of the sealing insertion head; the body of the bump seal seat is installed at the bottom of the inner cavity of the floating hoop body, and the sealing insertion head moves downward with the contraction of the spring, and the bottom of the sealing insertion head is inserted into the bumper. Compress the cavity in the seat body. The invention has the following advantages: the core rod of the sealing insertion head, the sealing insertion head and the body of the impact sealing seat are all metal structures, which solves the problems of the traditional floating hoop not being resistant to high temperature and not being resistant to erosion.

Description

technical field [0001] The invention belongs to the technical field of cementing tools in the petroleum drilling industry, and in particular relates to a novel bumper type floating hoop, which plays a very positive role in improving cementing quality and operation safety. Background technique [0002] In the oil drilling industry, cementing is an important link, and the tool accessories used in the cementing process ensure the quality of cementing. Sometimes when performing cementing operations, the existing tools are difficult to meet the needs of cementing, and even cause the failure of the entire project. In order to ensure the cementing quality of these complex wells and meet the needs of the cementing site, corresponding cementing tools are needed. [0003] The basic function of the floating hoop for cementing is to prevent the cement slurry from flowing back during cement injection. It is used to control the downward position of the rubber plug when injecting cement,...

AI Technical Summary

Problems solved by technology

[0004] However, in the prior art, the floating hoop is sealed by metal and nylon, which has disadvantages such as poor sealing effect, low pressure bearing capacity, no erosion resistance, no high temperature resistance, poor sealing and drillability, and inconvenient connection; And the existing floating hoop spool is closed only by the spring to push and reset, which has low reliability

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