Hydraulic bridge plug setting tool and bridge plug setting method

Abstract

The invention discloses a hydraulic bridge plug setting tool, which comprises an upper joint, a shear pin a, a front drive device, a lower center rod, a push cylinder connection sleeve, a sealing plug, a push ring, a composite ring, a shear pin b, a ball seat, a conversion joint, wherein the upper joint is connected to the front drive device by the shear pin a, the push cylinder connection sleeveand the lower center rod sleeve fitly and snugly the front drive device, and a containing sealed cavity for holding fluid is defined among the front drive device, the lower center rod and the push cylinder connection sleeve; the push ring and the push cylinder connection sleeve are movable backwards, and the containing sealed cavity is formed between the front drive device and the lower center rodafter the movement; the composite ring is connected to the lower center rod through the shear pin b, the sealing plug is arranged on the front drive device, the conversion joint is connected with thelower center rod, and the ball seat is arranged in the inner cavity of the conversion joint. The tool has the advantages of shorter length, convenient use, connection, and maintenance, lower cost, reusability and more efficient bridge plugging. The invention further discloses a bridge plug setting method.

Description

technical field [0001] The invention relates to downhole tools in the field of oil and gas fields, in particular to a bridge plug hydraulic hydraulic setting tool and a bridge plug setting method. Background technique [0002] Fracturing reservoir stimulation technology is more and more widely used in the exploitation of unconventional oil and gas reservoirs. Bridge plug staged fracturing operations have become a common fracturing method in the industry. Setting bridge plugs through hydraulic setting tools is the most conventional method. The method of lowering the bridge plug, but the current hydraulic setting tool has a long length, which is extremely troublesome for on-site connection, transfer, and maintenance. The long length also adds more uncontrollable factors to downhole operations. [0003] For this reason, there is an urgent need for a bridge plug setting tool with short length, convenient on-site connection, transfer and maintenance, and more efficient bridge plu...

AI Technical Summary

Problems solved by technology

[0002] Fracturing reservoir stimulation technology is more and more widely used in the exploitation of unconventional oil and gas reservoirs. Bridge plug staged fracturing operations have become a common fracturing method in the industry. Setting bridge plugs through hydraulic setting tools is the most conventional method. Lower bridge plug method, but the current hydraulic setting tool has a long length, which is extremely troublesome for on-site connection, transfer, and maintenance. The long length also adds more uncontrollable factors to downhole operations

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