A Downhole Reaming Angle Adjuster

Abstract

The invention discloses a downhole reaming angle adjuster, which comprises an adjusting pipe, a core shaft and a clamping head, the adjusting tube is arranged vertically, the core shaft is vertically movable through the adjusting tube, and the clamping head is installed on the upper end of the core shaft , the upper edge of the adjustment tube is provided with a number of clamping openings, all the clamping openings are equidistantly arranged, all the clamping openings pass through the tube wall of the adjusting tube, and all the clamping openings extend upwards out of the upper edge of the adjusting tube, the clamping head includes A plurality of clamping columns arranged horizontally, all the clamping columns are equidistantly arranged around the core axis, all the clamping columns are in one-to-one correspondence with all the clamping openings, and the clamping columns are located in the corresponding clamping openings. With the downhole reaming angle adjuster of the present invention, the clamping column rotates around the core shaft and falls into the corresponding clamping port by utilizing the cooperation between the clamping column and the clamping port, so that the core shaft is rotated to ensure that The angle of each rotation adjustment is the same, so that the perforations in the perforation operation are distributed equidistantly on the well wall, and the effect of reaming is improved.

Description

technical field [0001] The invention relates to an angle adjuster for drilling, in particular to an angle adjuster for downhole reaming. Background technique [0002] With the continuous deepening of my country's oil exploration, the scale of oil development continues to expand, and it is more difficult to exploit oil and gas resources in more complex terrains. In addition, most of my country's oil fields have entered the middle and late stages of exploitation, and the difficulty of exploitation has increased. The development of hole reaming technology The application will also become increasingly important, and its research will also receive greater attention and more investment. The main operation of well wall reaming is high-pressure injection operation. First, use a high-pressure hose to connect the water pump and water tank, and put it into the casing. Install a high-pressure reaming nozzle at the bottom, and finally drill the small-diameter hole that has been completed t...

AI Technical Summary

Problems solved by technology

[0002] With the continuous deepening of my country's oil exploration, the scale of oil development continues to expand, and it is more difficult to exploit oil and gas resources in more complex terrains. In addition, most of my country's oil fields have entered the middle and late stages of exploitation, and the difficulty of exploitation has increased. The development of hole reaming technology The application will also become increasingly important, and its research will also receive greater attention and more investment. The main operation of well wall reaming is high-pressure injection operation. First, use a high-pressure hose to connect the water pump and water tank and put it into the casing. Install a high-pressure reaming nozzle at the bottom, and finally drill the small-diameter hole that has been completed to expand the diameter of the hole to complete the reaming operation. In the process of reaming, it is necessary to perforate the well wall for one week. In the process of adjustment, it is difficult to ensure that the perforations are evenly distributed on the well wall, and the reaming effect is difficult to guarantee.

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