SU1510953A1 - Apparatus for cleaning clay drilling mud - Google Patents

Abstract

The invention relates to a technique for cleaning mud from cuttings when drilling oil and gas wells and is used as an integral part of the circulation system for preparing and cleaning mud in a drilling rig. The purpose of the invention is to increase the reliability of the device and improve the degree of purification of the drilling fluid. The device includes a frame 1, a receiving tank 2 of the clay solution, an electric motor 3 mounted on the base 1, a V-belt transmission 4, a vibration exciter (C) 5 with unbalance 10, a drum (B) 7. At the same time, B 5 and B 7 are mounted on a vibrating frame (BP ) 6, mounted on the frame 1 by means of springs. The axis of the shaft B 5 with debalance 10 is located along the movement of the drilling fluid along the screening surface B 7, which is made of spring and braided screens. Spring strainer B 7 is made in the form of a wound wire with stiffening rings located along the diameter of the sieve. Adjusting rods are placed in the rings. B 7 itself is placed on freely rotating rubberized rollers 12 mounted on BP 6, on which B 5 is mounted with unbalance that can be moved along it. The angle of inclination B 7 can be adjusted. The device has a device for rotation B 7. During operation, BP 6 performs an oscillatory motion, and B 7 also receives a discontinuous rotation around its axis. Each particle of the solution, falling on the screening surface, oscillates, rotates and under the force of gravity moves along the axis of the drum, at an angle to it, changing the motion to the opposite with each vibration of the sieve. This makes it possible to increase the passage length of particles along the grid. 4 hp f-ly, 10 ill.

Description

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31510953

Tel 3, V-belt transmission A, vibration exciter (C) 5 with unbalance 10, drum. (B) 7. At the same time C 5 and B B 7 are mounted on a vibrating frame (BP) 6 mounted on the base 1 by means of springs. The axis of the shaft B 5 with unbalance 10 is located along the movement of the drilling fluid along the penetrating surface B 7, which is made of spring and braided screens. Spring strainer B 7 is made in the form of a wound wire with stiffening rings arranged in diameter; sieve. i

Adjusting rods are placed in the rings. B 7 itself is placed on freely rotating rubberized rollers 12 mounted on BP 6, on which

set to 5 with debalance with the ability to move along it. The angle of inclination B 7 can be adjusted. The device has a device for rotation -B 7. In the process, the BP-6 oscillates as well. B 7 also receives intermittent-rotational movement around its axis. Each particle of the solution, falling on the screening surface, oscillates, rotates and under the force of gravity moves along the axis of the drum, at an angle to it, changing the motion to the opposite with each vibration of the sieve. This makes it possible to increase the passage length of particles along the grid. 4 hp f-ly, 10 ill.

The invention relates to the oil industry, in particular to the cleaning of mud from cuttings when drilling oil and gas wells, is used as an integral part of the circulation system for preparing and cleaning the mud of a drilling rig.

The purpose of the invention is to increase the reliability of the operation of the device and improve the degree of purification of the drilling fluid.

Fig, 1 shows the device, side view; - in Fig.2 - the same, front view; fig.Z - node I in figure 1; in FIG. 4, node II in FIG. one; figure 5 - node III in fig.Z; Fig. 6 shows options for the fabrication of a spring grid; Fig. 7 is a view of A in Fig. 6 in Fig. 8, a first embodiment of a device for rotating a drum in Fig. 9 is a view of B in Fig. 8. In Fig. 10 a second embodiment of a device for rotating a drum.

The device for cleaning mud drilling mud consists of the bed 1, the receiving tank 2 of the mud installed on the frame of the electric motor 3, the V-belt transmission 4, the vibration driver 5 mounted on the vibrating frame 6 with the possibility of moving along it.

On the frame 6 there is also mounted a drum 7, To the bed 1 and vibrating, the frame 6 is welded respectively

25 so

:

35

40

45

50 i 55

four cabinets 8, between which cylindrical springs 9 are placed.

Vibro-exciter 5 includes debalance 10, regulator of 1T unbalance. The axis of the shaft of the exciter 5 with an unbalance of 10 is located along the movement of the drilling mud on the screening surface.

The drum 7 is placed on freely rotating rubberized rollers 12 mounted on a stand 13, the stand is mounted on axles 14 and held at a certain angle by screws 15. Axes 14 are fixed on height-adjustable screws 16 boxes 17 and racks 18, which are welded to a vibrating frame 6 and made of rolled products. The supports 13 regulate the installation angle of the drum 7. The drum 19 holds the slide from slipping.

In the V-belt transmission 4 stabilizer 20 is applied.

The drum 7 is designed to directly clean the clay solution and discharge the cleaning waste into the receiving barns and consists of an inner ring 21 with a spring mesh recess 22 of adjusting rods 23, an outer ring 24 with a small tooth fixed on it, 25 gears, a woven mesh 27, clamps 28, bolts 29 welded to the inner ring 21 of the corners 30, screws 31, nuts 32, sleeves 33, The grid 22 is made of wound wire with rings of gesture

15

bone diameter of the grid, while the adjustment rods 23 are placed in these rings.

The drum 7 is rotated by means of a device that can be made in two versions. The fixture is located on an additional frame 34 rigidly mounted on the base 1.

In the first embodiment, the device rotates the drum 7 through the steel tape 35 attached to the frame 34 by the bolt 36 through the wedge 37. In this case, the free end of the tape 35 contacts the gear teeth 25. During the oscillatory movement of the drum 7, the tape rests under the action of the vibration exciter tooth gear when the drum 7 is shifted to the right, turns it at a certain angle.

In the second embodiment, the forced rotation of the drum 7 is carried out through a pin 38 mounted in the guide sleeve 39 attached to the additional frame 34. One end of the pin rests on the eccentric 40, mounted on the shaft of the injectors 5, and the other The spring 41 is used to return the pin 38 to its original position. With each turn of the eccentric 40, the pin pushes the gear tooth 25 and turns the drum at a certain angle.

The device works as follows.

The device is started by means of a button post. The rotation of the electric motor 3 through the V-belt drive 4 drives the vibration exciter 5, unbalance 10 is unwound, and the vibrating frame 6 starts to oscillate with a certain frequency.

In this case, each point of the frame 6 not only oscillates, but also rotates, describing with great speed the exact circle perpendicular to the plane of growth.

The drum 7, in addition to these movements, also receives a discontinuous-rotational movement around its axis. In this case, each particle of the solution, falling on the screened surface, oscillates, rotates and under the action of gravity moves along the bar axis.

6

a ban, at an angle to it, changing the movement to the opposite with each oscillation of the sieve (zigzag movement), which allows to increase the length of the particle passage along the grid.

The clay slurry solution enters from the left into the drum 7, large particles of sludge do not pass into the gaps of the spring screen 22 and roll down, rotate, oscillate, free from liquid medium, on the inside of the drum into the barn or receiving tray.

Small parts 1a.1, passing through the spring grid, are held up on the grid 27 and also, rotating, oscillating

When released from a liquid medium, roll into a barn or collection tray. Spring mesh 22 delays ocHOBHjTo rock mass (sludge), while mesh 27 takes a slight load compared to spring mesh.

Claims (5)

25 claims 0 0 five five five Q one . A device for cleaning mud drilling mud, including a frame, receiving mud capacity, a motor for transmitting torque to the vibration exciter mounted on a frame connected by means of elastic supports to the frame, and a screening device, characterized in that, in order to increase reliability device and improving the degree of cleaning of the drilling fluid, the screening device is made in the form of an inclined drum, which, by means of rotating rubberized rollers, is mounted on a vibrator conductive frame, wherein the vibration exciter shaft axis with de balance is arranged along the drilling fluid motion on the sieving surface, wherein the device is provided with a device for providing a. intermittent drum rotation. I -, 2. The device according to claim 1, about tl and - the fact that the vibration exciter is mounted on the frame with the ability to move along it, 3. The device according to claim 1, characterized in that the screening surface of the drum is made of concentrically mounted braided and spring sieves, while the spring sieve is made in the form of adjustment rods and wired wire e rings of rigidity located on the diameter of the sieve, and the adjustment rods are placed in the rings of rigidity,. . 4, the device according to claim 1, characterized in that the drum: is installed with the possibility of adjusting its angle of inclination, 5. The device according to claim 1, about tl and - that the engine is mounted on the frame and is connected to the vibration exciter by means of a clinorem transmission. Phage.g thirty Fut.if Fig.Z F 32 33 FIG. five First option Second. Option Theb.6 23 In id 22 .. 2J P 7 Fi9.8 View 6 S6 Fie.9 itU fyu