SU142245A1 - The method of increasing the drill string - Google Patents

Description

Commonly used methods are used to build up a drilling tool using two elevators, which require long and complicated manual operations to set a square in the hole at each extension. The expandable tube is pre-installed on the ramp of the drilling rack where the elevator is manually put on it, after which it is raised and screwed onto the column.

Known not found because of technical difficulties, the method using three elevators, which also requires a large amount of manual labor.

A method is proposed for expanding a drill string using an auxiliary hole located at the rotor, the axis of the auxiliary hole being inclined to the center of the well under the ANGLE equal to the angle of inclination of the square rod connected to the hole for connection with the expandable pipe previously lowered into it. The mouth of the hole is equipped with some kind of gripping device.

The proposed method simplifies the process of building up a storm, a string, and creates conditions for the mechanization of heavy manual operations, eliminating multiple operations of putting on and removing and tropes and elevators.

The tool buildup using an auxiliary mechanized hole is made in the following order.

Raise the square bar from the well and place the tool on the elevator (or wedge). The square bar is reversed and brought to the auxiliary pit. Then put the square bar in the sleeve narashaemoi pipe and screwed. After that, a square is raised together with an expandable pipe from the hole and brought to the rotor. After planting the pipe into the plug of the candle, they screw together and fix the stackable pipe and the square rod.

X9 142245- 2 Having started up the pump, lower the square bar into the well, previously .ycTaHQBHB clamps.

The All-Union Scientific Research Institute of Drilling Technique recommends a gun for industrial use.

.. -and i G. The subject matter of the invention

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A method of increasing the drill string using an auxiliary pinhole located at the rotor, characterized in that, in order to facilitate and speed up the production process of the build-up, the axis of the auxiliary pinhole is inclined to the center of the well at an angle equal to the angle of inclination of the square shaft connected to the drill hole to connect to a stackable pipe lowered into it, and the mouth of the pit is equipped with some housing device.