RU103127U1 - DEVICE FOR WINDING LONG-LENGTH STEEL PIPE - Google Patents

Abstract

 1. A device for winding a long steel pipe, comprising a drum mounted on a frame, a drum drive, a mechanism for laying pipe turns, including a lead screw, a lead screw drive, a carriage made to move along the lead screw, pipe coverage rollers, a position adjustment device the mechanism for laying pipe turns in height, the external and internal manifolds, characterized in that the mechanism for laying pipe turns further comprises a guide with a body and two pairs of horizontally arranged roles The pipe coverage is mounted on the carriage with the possibility of vertical movement, while the body is equipped with a pipe lubrication system and a mechanical pipe length counter, and a device for transmitting a signal from geophysical equipment located at the end of a long steel pipe is installed on the drum shaft, the external manifold has two inputs with cranes, and a swivel is installed at the end of the drum shaft. ! 2. The device according to claim 1, characterized in that the drum drive is made hydraulic with a hydraulic motor and a gearbox with a brake. ! 3. The device according to claim 1 or 2, characterized in that the drum and the mechanism for laying the turns of the pipe in the transport position are attached to the frame using lanyards.

Description

The utility model relates to the field of operation and underground repair of oil and gas wells, and more particularly, to devices for winding long steel pipes onto a drum and feeding them to the wellhead as part of installations for carrying out technological repair and research works using long steel pipes.

A known stacker for winding long steel pipes on a drum containing a drum, a drum drive, a spindle, a carriage of a stacker of long steel pipes on a drum, pipe sway rollers, a device for adjusting the position of the stacker in height relative to the drum and a lead screw drive / 1 /. The stacker carriage is equipped with two pairs of rollers, one of which is located horizontally and the other vertically. The distance between the rollers of each pair in the coverage area of the pipe is greater than the outer diameter of the pipe.

A disadvantage of the known device is the absence on the drum of the device for measuring the depth of the well and lubrication of a long steel pipe, which reduces the reliability and technological capabilities of using the device. In addition, the insufficient lifting height of the long steel pipe limits the scope of its use.

The closest technical solution to the claimed one is a device for winding a long steel pipe containing a drum mounted on a frame, a drum drive, a stacker of pipe turns (a mechanism for laying pipe turns), including a spindle, a spindle drive, a carriage made to move along the spindle the screw, the pipe coverage rollers mounted on the carriage, a device for adjusting the position of the stacker of pipe turns in height relative to the drum. A device for winding a long steel pipe comprises a piping system including an outer and an inner manifold. The drum drive is made in the form of a hydraulic speed controller associated with an electric motor and a cylindrical gearbox, and an asterisk installed with the possibility of interaction with the drum.

A disadvantage of the known device is the low height of the long steel pipe, limiting its technological capabilities, for example, its use for high wells. The absence on the drum of a device for transmitting signals from equipment installed at the end of a long pipe, a device for measuring the pipe length (well depth) and its lubrication reduce the reliability and technological capabilities of using the device. The use of an electric motor in the drum drive requires an additional synchronizing device when feeding and lowering the pipe into the well, which complicates the design of the device and reduces its reliability. In addition, the difficulty of access to the lubrication points of some components of the device makes it difficult to periodically maintain them.

The objective of the utility model is to increase reliability and expand the technological capabilities of the device.

This object is achieved by the fact that in the device for winding a long steel pipe containing a drum mounted on a frame, a drum drive, a mechanism for laying pipe turns, including a lead screw, lead screw drive, a carriage configured to move along the lead screw, pipe coverage rollers, a device for adjusting the position of the mechanism for laying pipe turns in height, the outer and inner manifolds, the mechanism for laying pipe turns further comprises a guide with a body and two pairs of horizontally aspolozhennyh tube coverage of rollers mounted on the carriage for vertical movement. At the same time, the housing is equipped with a pipe lubrication system and a mechanical pipe length counter, and a device for transmitting a signal from geophysical equipment located at the end of a long steel pipe is installed on the drum shaft, the external manifold has two inputs with taps, and a swivel is installed at the end of the drum shaft. The drum drive is made hydraulic with a hydraulic motor and a gearbox with a brake. The drum and the mechanism for laying the turns of the pipe in the transport position are attached to the frame using lanyards.

The implementation of the stacking mechanism of the pipe turns further comprising a guide with a body made with the possibility of vertical movement relative to the carriage, allows to increase the height of the pipe and thereby expand the range of technological operations. The presence of a pipe lubrication system allows to reduce friction of rotation and increase the reliability of the device, and the use of a mechanical pipe length counter allows you to monitor tripping operations, which also increases reliability. The presence of two inputs with cranes on the external manifold allows you to pump simultaneously various process fluids. Performing a hydraulic drum drive, including a hydraulic motor and gearbox with an integrated brake, allows you to synchronize the winding process with the mechanism of raising and lowering the pipe (injector) into the well without a synchronizing device, which simplifies the design of the device and increases its reliability. The presence on the frame of the traverse and lanyards for mounting the stacker of turns of the pipe and drum allows the transportation of the device and, accordingly, to expand the scope of its use.

The essence of the utility model is illustrated by drawings, where

figure 1 shows a General view of the device (left view);

figure 2 is also a side view;

figure 3 is a view a of figure 2;

figure 4 is a section bB of figure 1;

figure 5 is a General view of the pipe laying mechanism;

Fig.6 is a side view of the pipe laying mechanism.

The device for winding a long steel pipe contains a drum 10 mounted on a frame 7, to the upper brackets of which a stacking mechanism for the coils of pipe 4 is attached. The drum 10 for winding a long steel pipe is a coil with flanges and has a drive 15 located in close proximity to the axis of the drum 10 and, connected by a chain mechanism or gear with the outer diameter of the drum. The drive 15 is made hydraulic and includes a hydraulic motor and gearbox with an integrated brake. The use of such a drive allows you to create and adjust (maintain) the necessary tension of a long steel pipe when winding and unwinding due to the rotation of the drum 10. Regulation of the tension force of the pipe is carried out remotely from the operator's cab. When carrying out repair work on the well, a device 16 is installed on the drum shaft 10, which serves to transmit a signal from geophysical equipment installed at the end of a long steel pipe to a data acquisition and processing system. The mechanism for laying the turns of the pipe 4 is synchronized with the rotation of the drum 10 by means of a chain transmission 11 with manual correction from the hydraulic motor through an adjustable friction clutch. The laying mechanism of the turns of the pipe 4 rises to the working position with a hydraulic cylinder 1, mounted on the frame 7 and equipped with hydraulic locks to hold the set position. The mechanism for laying the turns of the pipe 4 contains a lead screw 17, driven by a hydraulic actuator 21. On the lead screw 17, a carriage 18 is mounted with a possibility of movement, on which a vertically arranged guide 19 with a housing 20 is mounted in the sleeve. The housing 20 is equipped with two pairs of horizontally located coverage rollers pipes between which a long steel pipe passes. The housing 20 together with the guide 19 freely moves vertically relative to the carriage 18, and provides an additional height of the mechanism for laying the turns of the pipe 4 within the length of the guide 19. In the housing 20 between the two pairs of rollers there is also a mechanical counter for the length of the pipe 2, the measuring wheel of which rotates due to friction on a pipe passing by him. In addition, the housing 20 is equipped with a lubrication system 3, which is a set of gaskets impregnated with an inhibitor, which is supplied to the lubrication system 3 through a high pressure sleeve. A device for winding a long steel pipe includes a piping system: inner 5 and outer 6 manifolds. A long steel pipe is connected at one end to an inner manifold 5 mounted in the core of the drum 10 and facing onto its shaft. For the simultaneous connection of two reagents (liquids or gases), the external manifold 6 has two inputs with taps. To ensure the circulation of liquids and gases in the pipes of the inner 5 and outer 6 manifolds when unwinding or winding the pipes onto the drum 10, a swivel is installed at the end of the shaft of the drum 10. For the convenience of loading and unloading operations, a beam 8 is provided in the design of the device for winding a long steel pipe ( which is a beam with brackets for lifting the device at two points) attached to the frame 7, and lanyards 12 and 13, with which the drum 1 and the mechanism for laying the turns of the pipe 4 in the transport position Lena to the frame 7. The frame 7 is the lubrication system 14 to which are connected all lubricating points device nodes requiring periodic maintenance.

The device operates as follows.

A long steel pipe wound on a drum 10 is fed through an arrangement of turns of pipe 4 to an injector (not shown in the drawing) for descent into the well. The mechanism for laying the turns of the pipe 4 is set to the working position in accordance with the direction of movement of the long steel pipe using the hydraulic cylinder 1. When unwinding the pipe (lowering the pipe into the well), the actuator 15 acts as a brake, the torque of which is regulated by changing the pressure on the hydraulic motor, thereby ensuring the tension of the pipe on the drum 10 during descent into the well. When winding a long steel pipe onto the drum 10 when lifting it from the well, the hydraulic motor rotates the drum faster than lifting the pipe from the well, thereby increasing the tension of the pipe when winding it onto the drum 10. Laying turns of a long steel pipe on the drum 10 is carried out by the stacking mechanism of the pipe turns 4, synchronized with the rotation of the drum 1. A long steel pipe passes through the rollers of the pipe girth of the housing 20 and in the process (winding or unwinding the pipe) independently adjusts the height under EMA within the length of the guide 19. Accordingly, enlarged or reduced lifting height pipe that allows the expense and length of the guide 19 of the hydraulic cylinder 1 to increase the maximum lift height of the turns laying pipe mechanism 4.

The presence of two inlets on the outer manifold 6 allows you to use two working fluids at the same time, and the swivel 9 allows you to pump any fluid or gas used in repair operations, for example, acid or nitrogen under pressure up to 70 MPa.

Sources of information taken into account when considering the application:

1. Certificate for a utility model of the Russian Federation No. 13231, IPC Е21В 19/00, publ. 03/27/2000)

2. Copyright certificate No. 832038, IPC Е21В 19/00, publ. 05/23/81, bull. No. 19 - prototype

Claims (3)

1. Device for winding a long steel pipe containing a drum mounted on a frame, a drum drive, a mechanism for laying pipe turns, including a spindle, a spindle drive, a carriage made to move along the spindle, pipe sweep rollers, a position adjustment device the mechanism for laying pipe turns in height, the external and internal manifolds, characterized in that the mechanism for laying pipe turns further comprises a guide with a body and two pairs of horizontally arranged roles The pipe coverage is mounted on the carriage with the possibility of vertical movement, while the body is equipped with a pipe lubrication system and a mechanical pipe length counter, and a device for transmitting a signal from geophysical equipment located at the end of a long steel pipe is installed on the drum shaft, the external manifold has two inputs with cranes, and a swivel is installed at the end of the drum shaft. 2. The device according to claim 1, characterized in that the drum drive is made hydraulic with a hydraulic motor and a gearbox with a brake. 3. The device according to claim 1 or 2, characterized in that the drum and the mechanism for laying the turns of the pipe in the transport position are attached to the frame using lanyards.