SU1566004A1 - Drilling unit - Google Patents

Abstract

The invention relates to the mining industry and permits an increase in drilling productivity while reducing the time for auxiliary operations. The installation consists of a chassis 1 with a platform 2 and a mast 3 and a feed mechanism comprising an actuator and mounted with the possibility of longitudinal movement along the guides 4 of the mast 3 carriage (K) 5 with a rotator 30. The latter is connected by means of a clamping mechanism 29 to an outer pipe ( NT) of the telescopic drill rod 17. A swivel 27 is connected to the inner tube (BT). Additional K 6 is placed over a K 5 with an independent drive, on which a swivel 27 is installed. The upper part of the NT of the 17 knob has a sleeve with a profiled internal cross section echeniyu Tues. The lower part of the VT is made with a thrust washer and clamps that interact with grooves made on the inner surface of the NT. When drilling under the influence of the drive K 6 with the rotator 30 turned off and the NT held by the mechanism 29, is lowered. After the bit 19 is in contact with the soil, the mechanism 29 releases the NT, the rotator 30 is driven, which begins to rotate the VT. Through the sleeve BT transmits rotation of the NT. Together with the rotator 30 K 6 NT transmits axial load. In this case, K 5 with the swivel 27 and BT are in the upper position. After the drilling process is completed using feed K 6, it stops. The washer BT is in contact with the end of the sleeve NT, and the clamps BT are inserted into the groove of the NT. As K 5 moves down, the feed force from the BT is transmitted through the latches and the groove to the NT. Coming down, the VT from the rotor of the rotator 30 transmits the rotation of the NT with a chisel 19. After reaching the K 5 lower position, the drilling is completed to full depth. 10 il.

Description

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by clamping mechanism 29

with an outer pipe (NT) of a telescopic drilling rig 17. A swivel 27 is connected to the inner pipe (BT). Over K 5 an additional K 6 is placed with an independent drive, on which a swivel 27 is installed. The upper part of the NT of a 17 has a sleeve with a shaped inner section , the response section VT. The lower part of the VT is made with a thrust washer and clamps interacting with the grooves made on the inner surface of the NT. When drilling under the influence of a drive K 6 with the rotator 30 turned off and the NT held by the mechanism 29, is lowered. After the bit 19 is in contact with the soil, the mechanism 29 releases

NT, turns on the drive of the rotator 30, which begins to rotate the VT. Through the sleeve BT transmits rotation of the NT. Together with the rotator 30 K 6 NT transmits axial load. In this case, K 5 with the swivel 27 and BT are in the upper position. After the drilling process is completed using feed K 6, it stops. The washer BT is in contact with the end of the sleeve NT, and the clamps BT are inserted into the groove of the NT. As K 5 moves down, the feed force from the BT is transmitted through the latches and the groove to the NT. Coming down, the VT from the rotor of the rotator 30 transmits the rotation of the NT with a chisel 19. After reaching the K 5 lower position, the drilling is completed to full depth. 10 il.

He invented it in the mining industry, in particular in drilling installations.

The purpose of the invention is to increase drilling performance while reducing time for auxiliary operations.

FIG. 1 shows a drilling rig with a raised drilling rig (a roller bit in the transport position), general view; in fig. 2 - drilling rig in an intermediate position, drilling completed when the bottom carriage was supplied; in fig. 3 - the same, in the lower position, the drilling process is completed when the head carriage is fed by the upper carriage; in fig. 4 is a section A-A in FIG. 2; in fig. 5 is a section BB in FIG. 3; in fig. 6 - initial (transport) position of the drilling rig; in fig. 7 - drilling to the depth of the outer rod; in fig. 8 - drilling to the full depth (to the length of the extended telescopic drilling rig - stava); in fig. 9 - removing the drill rod on the length of the inner rod; in fig. 10 - complete extraction of the drill rod from the well.

The drilling rig is designed as a running gear 1 with a platform 2 and a mast 3 with guides 4, in which the main 5 and the additional 6 carriage feeders are mounted for movement. The drill installation has a rack 7 with pulleys 8 and 9 and a rack 10 with pulleys 11 and 12

The drives of the carriages 5 and 6 of the feed mechanism are made in the form of individual cable systems, including each, respectively, drive cables 13 and 14 and lifting cables 15 and 16 with polyspasty or winch drives (not proven).

Telescopic drilling station 17 is made of two pipes. A roller cone bit 19 is screwed into the lower end of the outer pipe 18, and a profiled (for example, square) hole for the inner pipe 21 and the cuff 22 for sealing the inner cavity 23 of drilling stock 1 7 is screwed into the upper sleeve 20 with 7. At the lower end of the inner tube 21 tab-24 and the fasteners 25 fixed on it for engagement with the grooves 26 in the rod 18.

Internal tube 21 to its top

the end is fastened to the thread in the swivel 27 mounted on the carriage 5. To the swivel 27 is attached an air hose 28 for supplying compressed air to the bottom hole to remove the drill cuttings. The outer tube 18 is installed in the clamping mechanism 29 with the upper stop of the rotator 30,

mounted on the main carriage 6. The rotor 31 of the rotator 30, through the window of which the tube 21 passes, is driven to rotate from the engine 32.

Burov installation works as follows.

In the initial position, the carriage 5 with the swivel 27 and the inner tube 21, as well as the carriage 6 with the rotator 30 and the outer tube 18 connected to the rotator housing and held on weight by means of the clamping mechanism 29, are also in the upper transport position. The drive of the clamping mechanism 29 can be electrically or hydraulically driven and controlled from a common automation system.

When drilling to the depth of the outer pipe, initially under the influence of the drive, the drive cable 14 is simultaneously pulled off at the port 16. Under their influence, the carriage 6 with the rotator 30 turned off and the pipe 18 held by the clamping mechanism 29 begin to descend until the ball bit 19 contacts the soil. After that, the clamping mechanism 29 is opened and the tube 18 is then released, then the rotator 30 is turned on, which by the rotor 31 starts to rotate the tube 21 passing through it, which rotates the outer tube 18 through the sleeve 20. carriage 6. Under the impact of the drive cable 14, the carriage 6, together with the operation of the rotator 30 by its rotor 31, interacting with the upper end of the outer pipe 18, transfers the axial load to it, due to which drilling is carried out on at the stroke of the carriage 6, corresponding to the length of the pipe 18. At this stage of drilling, the carriage of 5 g by the swivel 27 and the pipe 21, held by the cable 15, remains in the upper position.

After the drilling process is completed by feeding the carriage 6 from the upper to the lower position, it stops and is fixed by tensioning the cables 14 and 16. In this case, the stop washer 24 contacts the end of the sleeve 20 and the latches 25 are in the groove zone 26 of the pipe 18. Then by means of a rotational drive of clamps (not shown) mounted, for example, on a swivel, and tg or shafts passing, for example, through the internal cavity of tube 21 (not shown), clamps 25 are inserted into the groove 26 of tube 18. As a result, moving the main carriage 5 down using the drive cable 13

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the feed force from the inner pipe 21 through the latches 25 and the groove 26 is transferred to the outer pipe 18. Since the rotator 30 on this ethane is already in the lower position, the pipe 21, going down, passes through the rotating rotor 31 and transfers the rotation of the outer pipe 18 from it - with a chisel 19. Drilling to the full depth is completed after the carriage 5 is in the lower position before the drilling.

Removing the drill rod from the well is carried out in two stages. Initially, with the help of a cable 15, the carriage 5, which is after the completion of the drilling cycle in the lower position, together with the pipe 21 is raised to the upper position. At the same time, the upper end of the cc of the pipe 18 partially leaves the well and enters the working area of the clamping mechanism 29 of the rotator 30, since the carriage 6 is in the lower ivuoru. Following this, the immoi mechanism 29 is turned on, the tube 18 is gripped with its help, and the clamps 2S are forced from the groove 26 to the initial neutral position1. After that, the carriage 6, together with the pipe 18, is lifted with the help of a lifting cable (raised to the upper position. 1), and after the expensive drilling rig, it is moved to the new MRGTO to drill the next well.

Claims (1)

Invention Formula A drilling rig including a running gear with a platform and a machuy, a feeder, contents of nature, and installed with the possibility of longitudinal movement of a carriage with a rotator associated with a telescopic drilling rig, a swivel connected to the inner tube of a telescopic glar bridge, along the guide masts, l and ch yu, 1 with JGM, that, in order to increase the drilling rate while reducing the time for auxiliary operations, the feeder is discharged with an extra frame placed above the main carriage etkoy with singly driven, with an extra carriage mounted swivel, and wr. The curved pipe has a profiled cross section, the rotator being connected by means of a clamping mechanism to the outer pipe, the upper part of which is -1 sleeve with profiled internal section, counter section of the inner pipe, bottom pass, which is made with a thrust washer and fixer Fig .2 for interaction with a sleeve and grooves made on the inner surface of the outer tube, respectively. Fig.Z WITH: P about J go And 5s N3 Och ghz - iffYSSS / stffffvftlffffi t 77 ////////////////// i I g, Fig.8 PhieZ Fi.Y.