RU17331U1 - DRILLING RIG - Google Patents

Description

Drilling rig

The utility model relates to the field of drilling equipment for the construction of directional wells.

A well-known drilling machine, including a base machine, a frame with rails, a rotator, a rotator drive with a square shaft and a feed hydraulic cylinder with a chain hoist, in addition, the machine is equipped with movable traverses with: coins, which are connected to the cylinder block via a displacement cable system (autoswitch .№ 369252, M. cl. E 21 B 3/00, publ. 08.11.1973, Bull. No. 10).

The layout of the machine does not include working with long candles, combining the operations of lowering and raising candles with the work of screwing, unscrewing and stacking on racks, thereby limiting the possibility of drilling deep wells.

A well-known machine for drilling deviated wells, including a mast, hydraulic cylinders for bringing the mast into an inclined position and a separator with a slewing pivot with upper and lower brackets to accommodate pins, the lower of which has sockets and a hinge. But the pedal fixed to it with a platform for interaction with the end part of the rods, and the upper one is a gripping device connected to the pedal by a flexible connection, moreover, a stop with a vertical flat surface is made in the upper part of the sockets, and a second stop with a conical surface is made in the lower part In the central part of the socket, a protrusion with a recess is made on which the second stop is placed. (RF patent No. 2057884, 6 МГЖ Е21 В 7/02, publ. 04/10/1996, Bull. No. 10.)

This machine is potentially limited in depth due to the limited length of the candles.

Known drilling rig for drilling deviated wells (prototype), including a base, a mast, a rotator, a centralizer, a carriage and a pipe layer with a rack and a tackle system (pulley), and the carriage is mounted on the upper face of a single-barrel sectional mast and is movable in a vertical plane relative to the axis of the pipes with the lower point of the receiving hole for pipes located above the outlet line of the tackle system. (Aut. St. No. 487 996, M. Cl. E21 B3 / 00, publ. 10/15/1975, Bull. No. 38.)

This installation has the basic solutions that are characteristic of all analogues and is limited in depth of drilling due to the large number of connectors and the limited length of the candles, which leads to an increase in time and laboriousness of the hoisting operations.

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This is achieved by the fact that inclined guides are placed on the base onto which a freight trolley is installed, which has a pipe grip and moves reciprocatingly using two lifting and lowering pulleys, the running ends are connected to two winch drums having independent rotation to the freight trolley during a drilling trolley is mounted on the hitch, equipped with a rotator with a drive and a swivel connected to a mud hose, which is wound on a drum in the center of which a swivel is mounted, connected to manifold, and for removal and installation of pipe b-candles above the rails placed electromagnetic capture of pipes.

The essence of the utility model is illustrated by the drawing: in FIG. 1 is a general view of the hangar of the rig, in FIG. 2 is a plan view of FIG. 3 longitudinal section.

On the base 1, inclined rail guides 2 are laid, the inclination angle of which is controlled by hydraulic cylinders 3. A load trolley 4 is installed on the guides, which is in the coupling period with the drill trolley 5 equipped with a rotator and swivel during drilling. The cargo trolley 4 is connected by two chain hoists: hoisting 6 and lower 7 with a winch 8, which has two independently rotating drums, working to lift and force feed the drill string 9 into the well 10. Towards the swivel:;:, walking; c, a mud hose is fastened on the drilling trolley 5, wound on a drum 11, in the center of which a swivel 12 is mounted, connected to the manifold 13. At the wellhead 10, anti-towing equipment 14 and wrenches for screwing and unscrewing the pipe 15 are installed. 16 there is a beam 17. In addition, the drilling rig serves the mud cleaning unit 18, the pump unit 19, the control unit 20 and the power unit 2.

The operation of the rig is as follows. In the process of drilling and deepening the borehole, the drill string 9 is connected to the rotator, swivel and hose located in the layout of the drilling trolley 5. The load on the bit is created using a freight trolley 4 connected by means of the lower chain block 7, the running end of which is wound on the drum of the winch 8. From block of drilling pumps, the solution for flushing the well through the manifold 13 through the swivel 12 and the mud hose wound on the drum 11 is fed into the swivel, the rotator of the mud cart 4 into the drill string 9. For geophysical their studies and navigation through the swivel and lubricator measuring sensors are fed into the drill string and the bottom hole drilling fluid flow. With the hydraulic drive of the rotator, the solution is supplied to the hydraulic motor.

If it is necessary to carry out hoisting operations, the rotator and the swivel are flipped, the drill trolley 5 is uncoupled from the cargo trolley 4. Using the drum 11, the mud hose is wound and the drill trolley is moved to its highest position and

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fixed motionless. A freight trolley 4 is connected to the drill string 9 by means of a grab elevator and is pulled out of the well by a lifting pulley 6 and drum 8 from the well to a length of a candle about 75-100 m long. After turning the plug with a key 15, it is captured by an electromagnetic grip and placed with the use of beams 17 in the racks. The drill string is lowered using a cargo trolley 4, a lower sheave 7 and a winch 8.

A comparison of the qualitative and quantitative indicators of the proposed drilling rig with an analogue including a vertical derrick 53 m high and a drill string with a weight of 1 linear meter 30 kg is shown in the table.

The application of the proposed drilling rig-inclined drilling complex allows you to:

- to ensure the search and exploration of minerals in the rock mass in a hemisphere with a radius of 15,000 m, eliminating or limiting in this way costly technologies with the construction of flyovers, artificial islands and the use of floating drilling rigs;

-provide a horizontal trunk of up to 12,000 m through hydrocarbon deposits, including heavy oils, gas hydrates and scattered gas from coal deposits, thereby creating an increase in profitable reserves;

-use horizontal wells as pipelines for communications and hydrocarbon transport under the seabed, under permafrost, in protected areas and in cities;

- limit the well stock by a factor of 10–15, reduce the number of communications, capital investments, and anthropogenic impact on nature.

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Claims (1)

A drilling rig comprising a base, inclined guides on which a freight trolley is mounted, a rotator with the possibility of their reciprocating movement using a pulley, characterized in that the freight trolley is coupled to the drilling trolley, with a rotator and a swivel, which to ensure the rotation of the rotator and a swivel over a distance of more than 40-50 m is connected to a mud hose wound around a drum, in the center of which is connected by means of a swivel to a fixed manifold.