RU2459062C1 - Jack support for system for derrick-drawworks unit of drilling rig moving and system for derrick-drawworks unit of drilling rig moving - Google Patents

Abstract

FIELD: mining.

SUBSTANCE: system for moving derrick-drawworks unit of cluster drilling rig for drilling wells installed on derrick sub-structure includes substructures connected to derrick sub-structure and at least for jack supports connected to derrick substructure. Jack support of movement system includes supporting mat on the surface of which there are not less than two rails, hydraulic cylinder of horizontal movement and hydraulic cylinder of vertical movement with cylinder support, trolley with the possibility of supporting mat rotation round the vertical axis, rail clamps with cylindrical rollers connected to the trolley.

EFFECT: increase of drilling works efficiency within multiple-well platform, reduction of total construction time of multiple wells and multiple-well platform construction and preparation costs.

10 cl, 12 dwg

Description

FIELD OF THE INVENTION

The invention relates to the field of drilling equipment, and in particular, to systems for moving the derrick-winch block of cluster drilling rigs, in which the derrick-winch block moves in any direction separately from the rest of the main rig systems, which are stationary on the cluster site.

State of the art

A device for moving a drilling rig along rails, including guide rails of the rail track, running trolleys and a moving mechanism with stops and hydraulic cylinders [a.s. SU 1032163 A, publ. 07/30/1983].

A disadvantage of the displacement device is that the drilling rig is moved along the rail track along only one line, and thus it is possible to drill cluster wells only along the displacement line.

A device is known for moving a drill tower of cluster drilling, including longitudinal and transverse guides, a sub-base with support plates, support legs with drives [a.s. SU 1180 480 A, publ. 09/23/1985].

A well-known cluster drilling rig containing a tower hoist with a base, guides with rails, a moving mechanism made in the form of hydraulic cylinders connected to the base of a tower and winch and equipped with a hydraulic cylinder attachment device [patent RU 2378482 C2, publ. 01/10/2010].

A device for moving a rig-winch block of a drilling rig, comprising a base frame with supports, equipped with wheels for interacting with rails mounted on guide beams, two-arm levers pivotally connected to each other, and a control mechanism [patent RU 53355 U1, publ. 06/10/2006].

A well-known mobile drilling rig for cluster drilling of wells, including a derrick winch block mounted on the base, a moving system containing guide beams, and a hydraulic cylinder moving mechanism [patent RU 81516 U1, publ. 03/20/2009].

A well-known mobile installation for cluster drilling of wells, including a tower hoist mounted on wheels, and a mechanism for moving hydraulic cylinders [patent RU 51099 U1, publ. January 27, 2006].

The main disadvantage of the well-known drilling cluster installations is the restriction of movement of the tower block on the cluster site, since the drilling rig moves only along the rails in one direction.

Information confirming the implementation of the invention

The problem to which the claimed invention is directed is to create a system for moving the rig-winch block of a drilling rig along a cluster pad in any direction, carried out without disassembling the rig’s equipment and using special equipment for its dismantling / installation for these works.

The technical result achieved by the implementation of the claimed invention is to increase the productivity of drilling operations by moving the winch block in any direction within the cluster pad, which allows cluster drilling of wells in one or several rows, as well as any other arrangement of wellheads on a well pad, in reducing the total time for constructing a wellbore due to the fact that wells can be drilled in any sequence in any of the adjacent rows (for example, staggering wells) without mounting and dismantling the winch block, in reducing the time and cost of building and preparing the well pad due to the fact that for the drilling rig to work with the transfer system - the winery block requires a smaller size of the cluster pad compared to the dimensions of the cluster pad under the echelon type drilling complex.

The technical result achieved is achieved due to the fact that the jack support of the moving system of the derrick and winch block of the cluster drilling rig includes a support mat on which at least two rails are located, a horizontal hydraulic cylinder and a vertical hydraulic cylinder with a cylinder support, a trolley made with the ability to rotate the support mat around a vertical axis, rail grips with cylindrical rollers connected to the trolley.

In addition, in the particular case of the invention, the jack support is equipped with a stopper fixing the position of the support mat when it is rotated by a predetermined angle of the direction of movement of the winch block.

In addition, in the particular case of the invention, the support mat is provided with eyes.

In addition, in the particular case of the invention, the rail clamps are connected to the trolley by means of fingers.

In addition, in the particular case of the invention, the trolley is equipped with a plain bearing.

In addition, in the particular case of the invention, the horizontal cylinder is placed on the supporting mat and connected to it by a hinge.

Performing a jack support with the possibility of horizontal movement and with the possibility of rotation around a vertical axis provides the ability to move the tower hoist block in any direction and at any distance within the cluster area.

Also, the technical result achieved is achieved due to the fact that the movement system of the derrick-winch block of the cluster drilling rig for drilling wells consists of support bases and at least four jack supports connected to the sub-base of the drilling rig, each jack support includes a support mat, on which at least two rails are located, hydraulic cylinders with supports for providing horizontal movement of jack supports, vertical hydraulic cylinder with support cylines pa trolley pivotable support mat around the vertical axis, the rail clamps with cylindrical rollers coupled to the cart.

The implementation of the movement system with at least four jack supports made with the possibility of horizontal movement and with the possibility of rotation around the vertical axis, provides step-by-step movement of the tower block in the bush in any direction, at any distance, as well as rotation of the tower block around center (axis) of the well.

In addition, in the particular case of the invention, the support base is made in the form of two I-beams connected to each other.

In addition, in the particular case of the invention, the support base is attached to the substructure using fingers and welded locks.

In addition, in the particular case of the invention, the jack supports are connected to the sub-base using fingers.

In addition, in the particular case of the invention, the displacement system includes a hydraulic station, to which the horizontal and vertical displacement cylinders are connected.

In addition, in the particular case of the invention, the hydraulic station is placed on a substructure.

In addition, in the particular case of the invention, the moving system comprises a remote control cylinder, connected wirelessly to a hydraulic station.

The implementation of the invention

Figure 1 shows a General view of the system of movement of the high-winch block of a drilling rig for drilling wells;

figure 2 shows a General view of the jack support;

figure 3 shows a side view of the jack support;

figure 4 shows a view of the jack support in front in section;

figure 5 shows a top view of the jack support;

figure 6 shows the position of the jack supports during the longitudinal movement of the mast winch block [top view];

in Fig.7 - Fig.10 shows a General view of the system of movement of the high-winch block of a drilling rig for drilling wells with stepwise movement in the longitudinal direction;

11-12 depict the position of the jack supports when turning the tower block.

The movement system of the tower block 1 of the well drilling rig [Fig. 1], mounted on the sub-base 2, consists of support bases 3 and four jack supports 4. Support bases 3 are a welded metal structure in the form of two I-beams connected between themselves. The support base 3 is attached to the substructure 2 using fingers and welded locks [not shown].

The jack support [Fig. 2] includes a support mat 5 on which two guide rails 6 and a horizontal movement cylinder 7, a vertical movement [lift] cylinder 8 with a cylinder support, a trolley 9 with a sliding bearing 10 [shown in Fig. 4] are located, providing rotation of the support mat 5 around a vertical axis by an angle in the range from 0 to 360 degrees, rail clamps 11, equipped with cylindrical rollers [not shown] and limiters of their longitudinal movement [not shown], connected by fingers 1 2 with a trolley 9 [shown in figure 3]. The trolley 9 is rotated relative to the axis of rotation when the lifting hydraulic cylinder 8 is retracted and the supporting mat is raised 5. Rail grips 11 provide movement of the supporting mat 5 or sub-base 2 along the rails 6. The jack support includes a casing 13 located on the trolley 9, inside of which the lifting hydraulic cylinder is located 8, connected to the casing using fingers 14 [shown in FIG. 3]. The jack support is equipped with a stopper 15, fixing the position of the support mat 5 when it is rotated by a predetermined angle. The jack support is connected to the sub-base 2 by means of the fingers 16. The support mat 5 is provided with eyes 17. The support mats 5 of the jack supports 4 can be positioned longitudinally or transversely with respect to the sub-base 2 or rotated by a predetermined angle. The hydraulic cylinders 7 and 8 of the jack supports are connected to the hydraulic station [not shown], which is located on the beams of the sub-base 2, and the hydraulic cylinders of the jack supports are lifted / moved by a control panel connected wirelessly to the hydraulic station [not shown] .

The system for moving the tower block of a cluster well drilling rig works as follows

Longitudinal movement

The initial position of the jack supports 4 is the location of the support mats 5 along the elevated base 2 [6]. In this position, the movement of the winch block 1 will occur in the longitudinal direction of the relative sub-base 2.

Stage 1. The hydraulic cylinders 8 jack supports are fully retracted, while the supporting mats 5 are raised above the ground to the height of the hydraulic cylinder [Fig.7].

Stage 2. The horizontal cylinders 7 are moved forward and the supporting mats 5 are moved by means of rail grippers 11 with cylindrical rollers along the rails 6 in the direction of the given direction of movement by a distance corresponding to the stroke size of the horizontal cylinders 7, while the sub-base 2 with the tower hoist 1 remains motionless to stand on the ground, relying on the supporting base 3 [Fig.8].

Stage 3. The lifting hydraulic cylinders 8 are pulled out, the supporting mats 5 are lowered onto the platform, and the sub-base 2 with the mast winch block 1 is raised above the ground to a height corresponding to the stroke of the lifting hydraulic cylinder 8 [Fig. 9].

Stage 4. When the sub-base 2 is raised above the ground on the supporting mats 5, the horizontal cylinders 7 are pulled in and the sub-base 2 with the tower block 1 is moved along the rails 6 by means of rail grippers 11 with cylindrical rollers to a distance corresponding to the stroke of the hydraulic cylinder 7 horizontal movement [figure 10].

Stage 5. Then, the lifting hydraulic cylinders 8 are retracted, as a result of which the sub-base 2 with the towing unit 1 lowers onto the platform and becomes on the supporting bases 3, and the supporting mats 5 are raised above the ground. Repeating sequentially steps 1-5, the derrick-winch block 1 will be moved in the longitudinal direction to the required distance.

Cross and diagonal movement

The initial position of the jack supports is the location of the support mats 5 along the sub-base 2 [6].

Stage 1. Expand all supporting mats of 5 jack supports by 90 ° [not shown] in the direction of movement of the winch block 1 relative to the initial position. Repeat steps 1-5 sequentially for longitudinal movement of the winch block.

When you install all the supporting mats 5 jack supports at the required angle, the winch block 1 will be displaced in a given direction.

Turn above the winch block

The initial position of the jack supports is the location of the support mats 5 along the sub-base 2 [6].

Stage 1. To implement the rotation of the winch block 1, each supporting mat 5 should be rotated by a turning angle from the initial position (the value of the turning angle is determined by the size of the sub-base) [11]. In this case, the support mats 5, located on one side relative to the longitudinal axis of the winch block, are rotated in the direction of a given direction of rotation, and the support mats 5, located on the other side, are rotated in the direction opposite to the direction of rotation. After the rotation of the support mats 5, their position is fixed using the stopper 15.

Stage 2. Hydraulic cylinders 7 move the support mats 5 by means of rail grippers 11 with cylindrical rollers along the rails 6. In this case, the support mats 5, located on one side relative to the longitudinal axis of the winch block 1, are moved in the direction of the given direction of rotation, and the support mats 5, located on the other hand, are moved in the direction opposite to the direction of rotation. The sub-base 2 with the tower block 1 remains stationary on the platform, on the supporting bases 3 [Fig. 8].

Stage 3. The lifting hydraulic cylinders 8 are pulled out, the supporting mats 5 are lowered onto the platform, and the sub-base 2 with the mast winch block 1 is raised above the ground to a height corresponding to the stroke of the lifting hydraulic cylinder 8 [Fig. 9].

Stage 4. Hydraulic cylinders 7 move the carts on the mats 5 to the distance of the hydraulic cylinders 7 [Fig.10]. In this case, trolleys located on one side relative to the longitudinal axis of the winch block are moved towards a given direction of rotation, and located on the other side are moved in the direction opposite to the direction of rotation. The limiting movement depends on the size of the rail grips. There is a rotation of the winch block 1 relative to its vertical axis in a given direction of rotation [Fig.12].

Stage 5. Then, the lifting hydraulic cylinders 8 are retracted, as a result of which the sub-base 2 with the towing unit 1 lowers onto the platform and becomes on the supporting bases 3, and the supporting mats 5 are raised above the ground.

Repeating the sequence of steps 1-5 as many times as necessary, the winch block 1 will be rotated around its own vertical axis by any desired rotation angle.

Thus, a step-by-step movement of the tower block 1 on the cluster site in any direction is carried out with a movement speed that meets the requirements of safety rules and is not lower than the movement speed of echelon-type drilling complexes, as well as a rotation around its own vertical axis (well) to any necessary angle.

Claims (10)

1. A jack support for the movement system of the tower hoist block of a cluster drilling rig, including a support mat on which at least two rails are located, a horizontal movement hydraulic cylinder and a vertical movement hydraulic cylinder with a cylinder support, a trolley configured to rotate the support mat around a vertical axis, rail grips with cylindrical rollers connected to the trolley. 2. The jack support according to claim 1, characterized in that it is equipped with a stopper fixing the position of the support mat when it is rotated through a predetermined angle. 3. The jack support according to claim 1, characterized in that the trolley is equipped with a sliding bearing. 4. The jack support according to claim 1, characterized in that the hydraulic cylinders of horizontal movement are placed on the supporting mat. 5. The movement system of the derrick-winch block of a well drilling rig mounted on a sub-base, including support bases connected to the sub-base, and at least four jack supports connected to the sub-base, each jack support includes supporting mat on which at least two rails are located, at least one horizontal displacement hydraulic cylinder, at least one vertical displacement hydraulic cylinder with a cylinder support , Trolley pivotable support mat around the vertical axis, the rail clamps with cylindrical rollers coupled to the cart. 6. The movement system according to claim 5, characterized in that the supporting base is made in the form of two I-beams connected to each other. 7. The movement system according to claim 5, characterized in that the jack support is equipped with a stopper that fixes the position of the support mat when turning through a predetermined angle. 8. The movement system according to claim 5, characterized in that the rail grips are connected to the trolley by fingers. 9. The movement system according to claim 5, characterized in that the trolley is equipped with a sliding bearing. 10. The movement system according to claim 5, characterized in that it includes a hydraulic station to which the horizontal and vertical movement cylinders are connected.

Images