RU69554U1 - UNIT OF REPAIR-DRILLING AR32 / 40 - Google Patents

Abstract

The utility model “Repair and Drilling Unit AR32 / 40” is designed for repair and deep drilling of oil and gas wells. The technical task of the utility model is to simplify the design of the unit while facilitating and simplifying the adjustment of the unit at the wellhead while maintaining its functionality when used for deep drilling, maintenance and repair of wells. The technical result is achieved due to the well-known repair and drilling unit, including the chassis of a self-propelled transport base, for example, a truck, equipment, including a mast with a tackle system, a drilling winch, gear drives, front and rear outriggers, according to a utility model, the equipment of the unit is located on a frame rigidly mounted on the chassis of a self-propelled transport base above its wheels, the mast is mounted in the rear of the frame with the possibility of transformation into a horizontal - transport position, for which the mast base is pivotally connected to the rear support and hydraulic jacks, while at the top of the mast there is a crown block and fastening elements for power extensions that are connected to the front of the frame, and a riser with a detachable manifold is attached to the mast on the side, and the drill winch is single-drum and is located in the central part of the frame, while in the rear of the frame there is an operator’s cabin and an auxiliary hydraulic winch, which are additionally equipped with the unit, as well as the wellhead platform, made with the possibility of changing its dimensions, connected to the unit frame by the front struts, the front mast support, on which the mast rests in the horizontal transport position, is mounted on the bumper of the self-propelled transport base, and the mast of the unit can be made single-section with an open front face or two-section telescopic .

Description

The utility model “Repair and Drilling Unit AR32 / 40” is designed for repair and deep drilling of oil and gas wells.

The well-known "Mobile drilling rig" (Patent No. 2190076, E21B 7/02 from 2001.03.26), which contains a multi-axle chassis, drill mast, mast lifting device. To facilitate and simplify the adjustment of the drilling rig at the wellhead, the mast is removable. The base of the installation is equipped with supports fixed with the possibility of rotation and fixing in the working and transport positions. The removable mast design requires additional equipment, which complicates the operation of the installation itself when drilling wells.

The well-known "Mobile repair and drilling unit" (RF Patent No. 40372, ЕВВ 3/00 from 2004.04.26). The well-known mobile repair and drilling unit contains a self-propelled chassis frame, a lifting block, an engine, a transfer gear, a double-drum winch with drill and tartar drums, winch drive transmissions, operational pneumatic couplings, a telescopic inclined mast with a crown block, a tackle system with a hook block. In this unit, the mast is made telescopic with the possibility of increasing its height, which allows the unit to be used for deep drilling of wells. To install and adjust the unit at the well, an additional wheeled platform is provided that requires an additional driveway, which makes it difficult to adjust and install the unit at the wellhead.

The well-known "Mobile repair and drilling unit" (RF Patent No. 2162133, ЕВВ 7/02 dated 03/28/2000), containing a multi-axle chassis, a drill mast, a device for lifting the mast in a vertical operating position, support jacks with plates for leveling and adjusting the platform by which the unit is oriented in relation to the well. The unit is designed for drilling and underground well repair. The presence of the adjustment platform facilitates and simplifies the adjustment of the mast at the wellhead, but the functions of the unit are limited to the use of the mast of a certain height.

This analogue is the closest claimed utility model for the achieved technical result and therefore is taken as a prototype.

The technical task of the utility model is to simplify the design of the unit while facilitating and simplifying the adjustment of the unit at the wellhead while maintaining its functionality when used for deep drilling, maintenance and repair of wells.

The technical result is achieved due to the well-known repair and drilling unit, including the chassis of a self-propelled transport base, for example, a truck, equipment, including a mast with a tackle system, a drilling winch, gear drives, front and rear outriggers, according to a utility model, the equipment of the unit is located on a frame rigidly mounted on the chassis of a self-propelled transport base above its wheels, the mast is mounted in the rear of the frame with the possibility of transformation into a horizontal - transport position, for which warping mast pivotally connected to the back support and to the hydraulic jacks, with the top of the mast and a crown block mounted fixing elements of extensions power that

connected to the front of the frame, and a riser with a detachable manifold is attached to the side of the mast, and the drill winch is single-drum and located in the central part of the frame, while the operator’s cab and auxiliary hydraulic winch are installed in the rear of the frame, which are additionally equipped with the unit, as well as the wellhead platform, made with the possibility of changing its dimensions, connected to the unit frame by the front struts, and the front mast support, on which the mast rests in the horizontal transport floor It is fixed on the bumper of the self-propelled transport base, and the mast of the unit can be made single-section with an open front face or two-section telescopic.

The essence of the utility model is illustrated by drawings.

Figure 1 shows a General view of the unit;

Figure 2 shows the frame of the unit - top view;

Figure 3 shows the mast mounting diagram;

Figure 4 shows the platform estuarine - top view;

Figure 5, 6 shows an auxiliary hydraulic winch;

Figure 7 shows the manifold.

The claimed utility model "Assembly repair and drilling AR32 / 40" (figure 1) contains a frame 1, which has a welded structure and is rigidly mounted on the chassis of a self-propelled transport base above its wheels, for example on the chassis of a car brand Ural-4320-1912-40. On the frame 1 (Fig.1, 2) installed equipment of the lifting unit, which consists of the following elements:

- drawworks 2;

- transmission winch drive 3;

- mast 4 (with tackle system);

- crown block 5;

- rear mast support 6;

- front mast support 7;

- hydraulic jacks 8;

- front outriggers 9;

- Outriggers rear 10;

- operator's cab 11;

- fencing with stairs 12;

- auxiliary hydraulic winch 13;

- a hydraulic system with an oil tank 14;

- manifold 15;

- leading pipe 16;

- wellhead area 17.

Drill winch 2 (figure 2) is located in the middle part of the frame 1 and is made single drum. The shaft of the drawworks 2 rotates on two radial ball bearings mounted in bearings that are mounted on the unit frame. On the flange of the drum there is a ratchet of the parking brake and strap fastening the rope. The brake system is equipped with a pneumatic booster. The winch 2 is controlled by the brake lever handle or foot pedal. The drum has a special helical groove for winding the rope. The drawworks is closed by a removable metal casing (not shown in FIG.).

The transmission of the winch drive 3 (FIG. 2) is located in an oil-filled housing and consists of a three-row chain and two sprockets, most of which are pressed onto the winch shaft. The drawworks is designed to raise and lower the drilling tool.

The mast 4 of the unit (figure 1) has an all-welded construction of pipes with an open front face and can be made of one or two sections. The base of the mast is pivotally connected to the rear support of the mast 6, around which the mast rotates when lifting it

in the vertical (working) position or lowered into the horizontal transport position. In the horizontal transport position (not shown in Fig.), The mast rests on the front support of the mast 7, which is mounted on the bumper of the car (self-propelled transport base). Raising and lowering the mast is carried out using two hydraulic jacks 8.

In the upper part of the mast is located crown block 5 (figure 1).

The crown block 5 has pulleys that rotate on ball bearings made with holes for lubrication. Pulley guards prevent the rope from slipping out of the stream. The pulleys are mounted on brackets that are fastened to the plate of the upper mast section using fasteners.

The back support of the mast 6 (figure 1) is a frame welded from pipes and profile hire. The mast support 6 is hinged to the end of the unit frame with two screw ties. In the upper part of the mast support there are hinges for turning the mast. Outriggers rear 10 are attached to the mast support 6 from the bottom.

Hydraulic jacks 8 mast lifting (figure 1) are double-acting telescopic hydraulic cylinders and are designed to raise and lower the mast. The hydraulic jack 8 consists (not shown in FIG.) Of the outer and inner cylinders and the piston rod. The rod and jack support are connected respectively to the frame and mast supports via self-aligning plain bearings, which compensate for the distortions of the mast that may occur when it is raised and lowered. In order to reduce the lowering speed and prevent the mast from falling (if the high-pressure hose breaks), the jacks are equipped with a check valve and a safety throttle.

Outriggers: front 9 and rear 10 (Fig. 1) consist (in Fig. Not shown) of a body, a rod, at the end of which there is a ball

support with a shoe. A nut is screwed on the threaded part of the stem, fixing the stem in the extended position. The outrigger has a hinge at the top. The rear outriggers 10 are attached to the rear support of the mast 6 with the help of hinged bolts in an upright position. In the transport position (not shown in FIG.), The outriggers 9, 10 are brought into a horizontal position using the outrigger lifting device and are fixed under the unit frame. Outriggers 9, 10 are double-acting, they are controlled from the mounting console, which is located on the left-hand side of the unit frame. The front outriggers 9 are designed to level the unit at the working site, as well as to unload the axles (bridges) of the car (self-propelled transport base).

On the frame 1 of the unit is installed the operator’s cabin 11 (Fig.1, 2). The operator’s cabin contains controls for the pneumatic system of the unit, a control panel, buttons for stopping the engine, a sound signal for starting up and lighting.

On the frame 1 of the unit (Fig. 1), fences 12 are fixed on both sides, the design of which is made with the possibility of transforming fences and installing stairs with a railing (Figs. 1, 2).

On the frame 1 near the base of the mast 4 and the operator’s cab 11, an auxiliary hydraulic winch 13 is installed (Figs. 1, 2, 5, 6). A pulley 29 is fixed on the mast 4 (Fig. 6), through which a cable 30 with a hook 31 lowers to the wellhead. The auxiliary winch is controlled from the control panel of the operating system.

On the frame 1 of the unit in front of it is installed a hydraulic system 14 (Fig.1, 2) with an oil tank. The hydraulic system 14 is designed to perform the following functions:

- installation of the unit frame in a horizontal position using outriggers 9, 10, frame 1 and mast 4;

- raising and lowering the mast 4 using hydraulic jacks 8;

- drive auxiliary hydraulic winch 13;

- key drive (not shown in FIG.);

- hydraulic splitter drive (not shown in FIG.).

The hydraulic oil tank 14 is equipped with an integrated strainer and safety valve (not shown in FIG.). The working fluid from the tank enters through a checkpoint valve to the gear pump, then to the distributor block. With the neutral position of the distributor levers, the working fluid enters the drain strainer. The extension of outriggers 9, 10 and hydraulic jacks 8 is controlled by distributors. The safety valve limits the maximum pressure in the installation hydraulic line (160 kgf / cm ² ).

The control of the auxiliary hydraulic winch 13, hydraulic splitter and hydraulic key is carried out from the production console, which is a block of control valves (not shown in Fig.). The safety valve limits the maximum pressure in the hydraulic key (200 kgf / cm ² ). The safety valve limits the maximum pressure in the hydraulic line of the auxiliary hydraulic winch 13 and hydraulic splitter (100 kgf / cm ² ). The manometer located on the block of hydrodistributors shows pressure value in an operational hydroline.

Manifold 15 (Fig. 1) is designed to transfer flushing fluid from the mud pump to the swivel 18 (Fig. 7) and consists of a riser 19, a medium separator 20, a lower elbow 21 and an upper elbow 22, a drill sleeve 23 12 m long. parts of the manifold are quick disconnect. The media separator 20 is designed to control the flushing fluid in the manifold.

The drill sleeve 23 is connected to the swivel 18 adapter and tied with a safety rope. Pressure control is carried out by a manometer. The riser 19 of the monifold is attached to the mast 4 of the unit using brackets with clamps.

The lead pipe 16 (Fig. 1) has the form of a square rod with a cross section of 80 × 80 with a length of 8.5 m. The lead pipe is connected to the drill pipe with the help of adapters.

The wellhead platform 17 (FIG. 1) is intended to facilitate and simplify the adjustment of the unit near the wellhead (drill string). The wellhead 17 is removable with the possibility of changing its dimensions, has dimensions of 3 m × 4 m and can be adjusted in height from 0.5 m to 3.0 m. The wellhead 17 (Fig. 4) consists of rotary and removable platforms 24, thanks to which its dimensions are regulated. Swivel and removable platforms are connected to the mouth area pivotally with the ability to disconnect using fasteners. A railing 25 is installed on the mouth site, which can be reinstalled if the mouth area is resized. The wellhead platform has front struts 26 and rear racks 27. With front racks 26, the wellhead platform 17 is attached to the unit frame 1 (Fig. 1). Due to the rear struts 27, the horizontal position of the mouth area is regulated. On the front and rear racks holes are made with a pitch of 180 mm to reinstall the mouth area in height.

Work on the estuarine site 17 (Fig. 1) is carried out after the installation of the rotor 28 and the lead pipe 16 assembled with a drill pipe (not shown in Fig.).

The rotor 28 is mounted on the flange. The rotation of the rotor is transmitted from the transfer gearbox by the cardan shafts through the secondary shaft of the gearbox and the intermediate support, which

passes under the operator’s cab (not shown in FIG.). To disconnect the rotor drive, a pneumatic tire coupling is installed on the secondary shaft of the gearbox, which is controlled by a crane from the operator's cab. The rotor 28 is designed to transmit rotation to the drill string while drilling.

To use the unit for its intended purpose, a prepared site with dimensions of 7 × 12 m ^{2 is} required. The unit is installed on the prepared site, which should be concreted. It is allowed to use metal concreted platforms, providing a complete and evenly distributed transmission of the efforts of the jacks of the mast 4 and frame 1 (Fig. 1) to the ground. In this case, the specific pressure on the soil should not exceed 0.25 MPa (2.5 kgf / cm ³ ) for soft soils and 0.5 MPa (5 kgf / cm ³ ) for medium soils.

Before starting work, the unit is installed on a pre-planned site and fed back to the wellhead so that its longitudinal axis coincides with the axis of the wellhead. The distance from the rear end of the unit frame to the axis of the wellhead should be 1000 ± 10 mm. Misalignment of the longitudinal axis of symmetry of the lifting block and the wellhead should be no more than ± 50 mm. They apply the parking brake of the self-propelled vehicle and set the wheel chocks under the wheels, then install the stands for the front and rear outriggers. Install the platform guard 12 in the working position with the installation of stairs with a railing for lifting onto the platform of the unit. Disconnect the mast mount from the front support 7 to install the mast in a horizontal position.

Outriggers 9, 10 are lowered. The rear outriggers 10 are fixed with hinged bolts to the rear mast support 6. They start the engine. Open the taps of the tank of the hydraulic system and pneumatic system. Check

the oil level in the hydraulic tank and the presence of lubricant in the mechanisms of the unit.

Put in neutral position the control levers of the gearbox and transfer case on the frame 1 of the unit. They include the fourth (direct) transmission of the gearbox, and then turn on the gearbox for additional power take-off. Turn on the pump. Turn on the hydraulic pump of the mounting console and using the outriggers 9, 10 set the unit. To remove air from the outriggers, the stem is extended. By controlling the handles of the control valves so that the distance from the ground to the surface of the frame is 1600 mm. Expose the unit horizontally along a plumb mounted on the rear support 6. In this case, the center of the load should not go beyond the annular mark on the disk welded to the frame 1 of the unit. Fix the position of the outrigger rods with locknuts. The switch on the control panel in the operator's cab is set to the "On" position.

Raising and lowering the mast with hydraulic jacks is carried out from the mounting control panel. Hydraulic jacks are crimped (removal of air from hydraulic cylinders) of the mast lifting. After that, the mast is lifted, controlling the pressure in the hydraulic system and the position of the guy wires.

To stop the mast in any position, just release the lift button. The vertical position of the mast is fixed by securing the supports with hinged bolts and nuts to the support shoes welded to the unit frame. The mast hydraulic jack design includes throttle valve assemblies that prevent the mast from falling in the event of high pressure hoses breaking or pipe depressurization.

To ensure the stability of the unit during operation, the mast is fastened with 4 power 32 and 33 wind guy wires

(figure 3). At the same time, the wind guy 33 is attached to the anchors 34. Power guy 32 is attached to the brackets rigidly installed in the front of the frame 1 and tensioned with a force of 400-500 kgf, which corresponds to the tightening of the coupling nut with a lever 800 mm long, with a force of 25 kgf. Wind ropes 33 are pulled with such force that there is no noticeable sagging of the rope. Power guy wires 32 are pulled up periodically during operation, and power guy wires 32 are regulated with tie rods 35. The installation diagram of guy wires is shown in Fig. 3.

After that, the mouth area 17 (FIG. 1) is set to the desired height, the hook 31 (FIG. 6) of the auxiliary hydraulic winch 13 and the rotor 28 (FIG. 1) are brought into working position. Check the fastening of the hoist rope on the winch drum 2 (Fig. 1) and the fastening mechanisms of the fixed end of the hoist rope, the operation of all instrumentation, and the brake system of the drawworks.

The drill sleeve 23 (Fig. 7) is wrapped with a steel rope with a diameter of 13.5 mm with loops every 1.0-1.5 m along the entire length. The ends of the rope are fixed to the upper elbow 22 of the riser 19 and to the outlet of the swivel 18 of the manifold 15 (figure 1).

At the end of the work, all the handles are set to neutral or off, disassemble the lifting unit in the reverse order and prepare the unit for transportation.

When dismantling, wind brackets and auxiliary ropes are laid on transport hooks. After that, the mast is fixed in horizontal position with the help of special ties, the tackle block is fixed inside the mast with the help of a special device, the hinged bolts of the front mast stand are fixed; set the folding barriers and ladders of the lifting unit to the transport position.

The technical result of the utility model, namely, facilitating and simplifying the adjustment of the unit at the wellhead is obtained by changing the design of the frame and introducing an additional wellhead area with the possibility of changing its dimensions, while the functionality of the unit is preserved. The claimed utility model “Repair and Drilling Unit AR32 / 40” can be used for development and overhaul of wells and for deep drilling in macroclimatic regions with temperate and cold climates at ambient temperatures from minus 45 to plus 40 C.

Claims (4)

1. The assembly of the drilling rig, including the chassis of a self-propelled transport base, for example, a truck, equipment, including a mast with a tackle system, a drawworks, gear drives, front and rear outriggers, characterized in that the equipment of the unit is located on a frame rigidly mounted on the chassis of the self-propelled transport base above its wheels, the mast is mounted in the rear of the frame with the possibility of transformation into horizontal - transport position, for which the mast base is pivotally connected to the rear support and with hydraulic jacks, while in the upper the mast part is equipped with a crown block and fastening elements for power extensions, which are connected to the front of the frame, with a riser with a detachable manifold attached to the side of the mast, and the drawworks it is single-drum and is located in the central part of the frame, while in the rear of the frame there is an operator’s cabin and an auxiliary hydraulic winch, which are additionally equipped with the unit, as well as the mouth platform, with the possibility of changing its dimensions, connected to the unit frame by the front struts. 2. The assembly according to claim 1, characterized in that the front mast support, on which the mast rests in the horizontal transport position, is mounted on the bumper of the self-propelled transport base. 3. The unit according to claim 1, characterized in that the mast is made single-section with an open front face. 4. The unit according to claim 1, characterized in that the mast is made of a two-section telescopic.