SU236377A1 - AUTOMATIC MACHINES FOR HOUSING AND DRIFTING DRILLING OPERATIONS - Google Patents

Description

Known machines for tripping in drilling, for example, machines for feeding the bit to the bottom, for turning off the lifting of the drilling tool when passing the traveling block to the crown block, sets of mechanisms for screwing and unscrewing the drill pipes when operating these operations from the console.

The proposed automatic line is characterized by the fact that the rig equipment includes a traveling block, with rollers of which are connected an oil pump acting on a self-wedging mechanism, as well as a key and a holder, which in turn sends signals to the braking device that affects the lifting brakes winches With all these mechanisms, a candle suppressor is interlocked to center the pipes, feed them to the candlestick and install.

FIG. 1 shows a general scheme of the device; FIG. 2 is a diagram of a traveling block with an elevator. and a current collector, in FIG. 3 is a schematic of a holder with a key; FIG. 4 is a diagram of a braking device; FIG. 5 - candle feeding device.

The kronblock / mated with the traveling block 2 is equipped with a conventional tackle equipment connected by a rope to the winch 3. At the level of the beds 4 are mounted the candle-feeding device 5 and below it the tension device 6.

Rod holder 7 with a key set below the level of the floor of the drill, centralizer 8 - above the wellhead and the oil pump station 9 - at the level of the rig floor.

An oil pump / roller-driven // block is integrated in the thrust block. A three-plate hydraulic hydraulic cropper 12 is attached to the lower part of the block, with self-jamming grip 13, which keeps the column free. In the event of a pressure drop in the hydraulic system. One of the two rollers of the block is connected to the eccentric of the pump W supplying oil to the pneumohydraulic accumulator 14, from which the oil flows to the hydraulic cylinders of the elevator 12 through the reversing spool 15 controlled by the electromagnetic valve 16. The electromagnetic crane receives external pulses B of the upper and position of the pulley block. These impulses come through the current collectors from short trolls, which also receive reverse pulses from the pressure switch 17 of the hydraulic system. The outside block has four rubber-coated rollers 18, which run in two vertical guides, which receive the tilting moment from the pump drive. Rod holder consists of a mechanism

screwing and unscrewing it (key). It is equipped with six dies 19 with cMozat givayush, it is captured, and for measuring through the tube holder of different diameters, the occipital part of the dies is made with two corners.

Induction sensor 20 shtangodzhrzhatel gfi passing by the next candle lock's noto,: In which the diamagnetic ring is embedded, sends a signal to the braking device.

The dies are mounted in the horizontal grooves of the ring-cage 2 /, which is pressed from below by springs to the fixed stop of the housing 22 of the rod and capable of mixing along its inner vertical direction to it. Along the outer vertical guide of the same body, under the action of the hydraulic cylinders 23, the clamping ring 24 moves, having grooves with inclined planes in contact with which the corresponding planes of the dies enter their clamping. When the clamping ring is moved upwards, the plates first quickly approach each other for the greater part of the stroke, and then finally are clamped onto the pipe of the column.

The plates are opened only after the elevator grids the grab 12. The transfer from the P1thanderler to the elevator is accompanied by some lengthening of the pulley system, within which the clamping ring and the ring-holder with dies move simultaneously. Then the ring-holder for some time is stopped, the clamping ring under the action of hydraulic cylinders continues and releases the cloaks. The unclamping of the flaps is completed by diluting them with recoil springs and lifting the ring of the holder to its original position.

The key is made self-tightening, double acting (for screwing and unscrewing), with Forced closing of the gripping Sectors 25 at the candle lock, is driven into rotation by the hydraulic motor 26 through the drive faceplate 27 and is equipped with a brake hydraulic cylinder 28. The gripping sectors can be replaced with rotor wedges 29, since this the key mechanism is made floating on the springs in the drive faceplate.

The winch drum brake device, which receives signals from the induction sensor of the rod-holder, contains a centrifugal regulator 30, a throttle 31, a lift brake hydraulic cylinder 32, and a hydraulic cylinder of the descent brake 33.

The candle device is designed to frictionly grip the candle by the upper end and move it from the candle-receiving device to the well and back.

Pliers 34 with self-aligning dies are moved by hydraulic cylinders along short vertical guides and along with them along a long horizontal guide capable of turning about a vertical axis.

The main parts of the device are the plug 35, the probe 36, the candle receiving device 37, the hydraulic cylinder of the gripper 38, the hydraulic cylinders of the lifting 39 and horizontal movement 0, turning 41. In addition, the machine is equipped with

a pulley rope tensioning device; and a pipe centralizer in the form of forks, which install the pipes in a vertical and coaxial position. The proposed machine frees drilling crews from manual labor, improves safety engineering and increases the technical level of drilling.

Subject invention

Claims (1)

1. An automatic machine for tripping in drilling, equipped with a key of the planetary disk and self-jamming grips, mounted on a traveling block, characterized in that, in order to speed up, combine and facilitate the launch and lifting of the operads, an oil pump associated with a pulley roller is used in a self-wedging mechanism. block, which, in turn, is interlocked with a weight holder and a key. 4. Automatic but nn. 1, 2, 3, different t & m. An induction sensor is mounted in the holder, which, when an inductive coil passes through a diamagnetic ring mounted on the lock joints of the drill string, sends signals to a brake device equipped with a centrifugal regulator or TaxorenepaTOpOiM, which changes the pressure in the hydraulic cylinders of the winch by means of a throttle device. 3.Automat on PP. 1, 2, characterized in that a candle-feeding device interlocked with a brake and tensioner is used the device and with frictional capture of a candle, 4.Automat on PP. 1,2,3, characterized in that it has a tensioning device consisting of two groups of movable rollers installed at the dead end of the rope, as well as a centralizer, made in the form of two forks, moved by hydraulic cylinders. 5. An automaton according to claim 1, characterized in that, in order to combine the planetary key and the rotor, it is made with a floating mechanism that can be replaced with rotor wedges. 6. The automaton according to claim 1, characterized in that, in order to ensure that tubes of different diameters pass through the stem gauge, the occipital Part of the bags is made with two corners. -t -K 1 T V one 12 FIG 3