Downhole hydraulic vibration assisted casing running and well cementation integrated combination tool and using method thereof

Abstract

The invention discloses an underground hydraulic vibration assisted casing running and well cementation integrated combination tool and a use method thereof. According to the integrated combination tool, circulation is established to guide fluid to enter the hydraulic self-excitation cavity to generate regular vibration, the sleeve generates axial and radial vibration, and resistance reduction and jam release are achieved; under the action of hydraulic pressure difference, the turbine assembly is pushed to drive the guide head to continuously rotate, and under the cutting action of the alloy teeth, reaming and reaming can be performed, a well wall can be corrected, and a sleeve can be assisted to smoothly enter; in the well cementation process, due to the fact that the outer wall of the tool is designed to be of a rotational flow type structure, cement paste plane flowing can be changed into rotational flow flowing in the cement paste upward returning process, and the cement paste displacement efficiency and flushing efficiency are improved; circulating cement paste flows through the contraction spraying cavity and the nozzle of the self-excitation cavity, so that long-distance high-frequency vibration can be generated, the rheological property of the cement paste is improved, the cement paste is more uniformly hydrated and more compactly solidified, and the well cementation quality is further improved.

Description

technical field [0001] The invention relates to an integrated casing running and well cementing combined tool assisted by downhole hydraulic vibration and a use method thereof, belonging to the field of oil and gas well engineering. Background technique [0002] Casing and cementing are one of the most critical parts in drilling engineering. Whether the casing can be run in place and whether the cementing quality can be guaranteed will directly affect the well construction cycle and operation safety. At present, conventional casing-assisted running tools and cementing tools are independent of each other and cannot meet the needs of complex well cementing operations. In order to overcome these shortcomings, an integrated design is adopted to improve the reliability and effectiveness of cementing tools. The existing casing auxiliary tools cannot actively release the casing when the casing is blocked or stuck; while the conventional cementing string can only meet the replacemen...

AI Technical Summary

Problems solved by technology

At present, conventional casing-assisted running tools and cementing tools are independent of each other and cannot meet the needs of complex well cementing operations. In order to overcome these shortcomings, an integrated design is adopted to improve the reliability and effectiveness of cementing tools

The existing casing auxiliary tools cannot actively release the stuck casing when the casing is stuck; while the conventional cementing string can only meet the replacement function, and cannot actively improve the cementing quality

At the same time, the existing vibration cementing technology still has the problems of weak vibration intensity and uneven vibration distribution. By optimizing the vibration generation method, the problem of poor vibration amplitude is solved.

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