Drilling device

FIELD: mining industry.

SUBSTANCE: device has slanting frame with lower rotation drive and localizer, clamps of drilling pipes, stacks for storing drilling pipes. Conveyor is mounted on slanted frame, having adjustable drive, while clamps of drilling pipes having elevator links are fixed to conveyor branches, as well as open localizers and upper drive-swivel, and stacks for storing drilling pipes are placed along movement of conveyor in its upper portion. Upper end of drilling column is placed in well pipeline. At the end of stacks for storing drilling pipes a vehicle is placed with clamps for pipes to provide additional traction force and performing hoisting operations for drilling stalks consisting of several drilling pipes.

EFFECT: higher efficiency.

3 cl, 3 dwg

 

The invention is intended for deep drilling directional wells.

Known trench for pipe handling, including a tray, a conveyor in the form of a conveyor with an endless belt, head and supporting wheels, a frame mounted on the cylinders, and a roller mounted on the head roller conveyor (ed. St. No. 601386, MKI E 21 In 19/14, publ. 5.04.1978,, bull. No. 13).

When the drilling and tripping with this trough the necessary drive and manipulation of the hydraulic cylinders, which complicates the process of drilling, including ergonomic requirements. The lack of rigid mesh tubes conveyor potentially limits the weight of the moving pipe due to possible slippage in the rollers.

Known drilling rig for drilling deviated boreholes, including the base, the inclined mast, rotator, centralizer, carriage and pipelayer with grips drill pipe and saddle, traveling system (ed. St. No. 487996, MKI E 21 3/00, publ. 15.10.1975,, bull. No. 38, prototype)

The disadvantage of this setup is that of pulley system when working in contact with the guide, which contributes to its deterioration, and in a free state, the output of the rope out of the rollers traveling block and crown block. In addition, the length of the inclined mast structurally limited, which causes restrictions on the length of stroke of the carriage as a Consequence, increasing the number of slots in the drill string, time tripping and nails, which reduces the efficiency of drilling operations.

The objective of the invention is to provide a setting that enhance the effectiveness of deep drilling of directional and horizontal wells.

For the implementation of the proposed drilling rig, which includes an inclined frame with the lower drive - rotator and centralizer, grips the drill pipe racks for stacking drill pipe. A distinctive feature of the plant is that on the inclined frame mounted conveyor with adjustable drive, while to the traction branches conveyor attached with the lever grips drill pipe, open the centralizers and the top drive swivel-rotator, and racks for stacking drill pipe located in the direction of travel of the conveyor in the upper part. In addition, the upper end of the drill string is placed in the pipeline wells, and at the end of racks for stacking drill pipe is located a vehicle with clamps drill pipe to provide additional traction and holding tripping drill candles, consisting of several drill pipe.

Principle design of the rig is illustrated by drawing on figa, a top view, shows a diagram of the CA is anouki in the drilling process. On figb presents the upper part of the conveyor in the process of ascent (descent) of the tool with the descent (ascent) in the pipeline - the well - figv, and when laying it on the ground (sea) using vehicle - high.

On figa on the inclined frame 1 is mounted a conveyor with adjustable drive, including load-bearing reels 2 driven by a motor 3 through the reduction gear and clutch 4. The reels 2 are connected traction branches 5 (chain, ribbon, plates-tracks), that does not matter. To the traction 5 branches throughout the length of the fixed pipe centralizers 6 and having stropy 7 grips the drill pipe 8, which should provide free concentrations and capture elements of the drill string 9 and the top drive swivel of the rotator 10. In the lower part of the unit on the frame 1 has the lower centralizer-rotator 11 driven by motor 12 through the gear 13. In the direction of travel of the conveyor beyond racks installed 14.

On figb drill string 9 using capture 8 that is installed on the bottom of the lock 15 is removed from the well with the help of the conveyor and placed in the pipe - hole 16 - FIGU, or the upper end of the drill string 17 is attached to the host vehicle 18 (truck, car, tractor, boat, pontoon and the drillstring in whole or in part laid on the ground, oboki the s roads, cuttings on the bottom of rivers, lakes, seas.

Figure 2 shows a General view of the plant, represented by the conveyor, the drillstring 9, which is directed to the bore 19 or 20, when lifting the drill string 9, the upper end 17 which is connected with the vehicle 18 or lowered into the hole 16.

The principle of operation is as follows. On frame 1, which is installed at an angle from 0° to 90° fixed scraper conveyor SP-63/1 a length of 80 m with a reversible motor constant flow with variable speed, capacity of 32 kW with hydraulic clutch 4-TA-32. As a traction branches use two stamped chain 5 with a total bursting force 58 ft Chain scrapers connected with step 640 mm, which were reconstructed in units 6 and step 3200 mm grips 8 with strapy 7. During the descent of the drill pipe trapped under lock 15 on the opposite side, shown in figb, blades push on the conveyor and at the approach to the left drum 2, the grip 8 is released, the movement of the conveyor, the action and the release of the grippers carried out continuously. When assembling the column pipe blades push on the conveyor, are joined and screwed. At the end of the descent of the upper rotator-swivel 10 is placed on the conveyor is associated with the drillstring.

Served flushing fluid is here through a mud hose and electric power to the upper rotator 10, representing pipe electric DC motor with sealed radial-axial spindle. By adjusting the rotation speed and the feed speed of the conveyor drive mode of drilling. Building columns provide 75 m candles.

Lifting the drill string is made with the mounting of the attachment on the opposite side of the castle during the continuous movement of the conveyor up with automatic opening of the grippers 8 and passing them together with the inverse branches of the chains at the bottom on both reels 2.

Pipes are extracted candles with the laying on racks on the right side or entirely with the descent into the pipeline or borehole 16 or mounted and suspended from the controlled vehicle 18, which provides control of the pipe on the ground and prevents the landing end of the pipe 17 on the surface.

By limiting the number of connectors of the drill string, the continuity of the holding chute-podjetij operations, capacity long candles and the inclined position of the conveyor, substantially increases the drilling rate, labor productivity, reduce the cost of managing the trajectory of directional wells and especially horizontal, which ultimately meets the invention.

1. Rig, includes an inclined frame with the lower drive-rotator and centralizer, to which you drill pipe, racks for stacking drill pipe, characterized in that the inclined frame mounted conveyor with adjustable drive, while to the traction branches conveyor attached with the lever grips drill pipe, open the centralizers and the top drive swivel-rotator, and racks for stacking drill pipe located in the direction of travel of the conveyor in the upper part.

2. Drilling rig according to claim 1, characterized in that the upper end of the drill string is placed in the pipe-hole.

3. Drilling rig according to claim 1, characterized in that at the end of the racks for stacking drill pipe is located a vehicle with clamps drill pipe to provide additional traction and holding tripping drill candles, consisting of several drill pipe.



 

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