Tool guide device for derrick floor

FIELD: machine building.

SUBSTANCE: invention relates to the device for vertical directed movement of the tool intended for installation on the derrick floor. The device for the tool directional movement contains the drilling rig that goes from the drilling rig base supported by the derrick floor with possibility of rotation relatively to the first vertical axis. The drilling rig contains the vertical tool guide located at distance from the first vertical axis. The drilling rig rotation relatively to the first vertical axis creates the horizontal work sector of the first tool, and vertical projection of the given work sector touches or crosses the central axis of the through hole in the derrick floor. The drilling rig is installed on the base with possibility of rotation around the second vertical axis that in the horizontal direction is at some distance from the first vertical axis. At that the second drilling rig with the second tool is installed on the derrick floor. The horizontal work sector of the first tool in the vertical projection at least partially overlaps or touches the vertical projection of the horizontal work sector of the second tool.

EFFECT: invention ensures increased productivity and safety of works.

3 cl, 3 dwg

 

The technical field to which the invention relates.

The described device for vertical directional move tool, designed for installation on the floor of the rig. More specifically, on the floor of the drilling rig is installed at least one drilling rig. Each drilling unit is located on the base, which rests on the floor of the drilling rig can be rotated around a first vertical axis and can move the tool in a horizontal working sector, which has a vertical projection of at least touches or crosses the Central axis of the through-hole made in the floor of the drilling rig, and each drilling unit is equipped with a vertical guide tool.

The level of technology

When conducting surface in the wells for hydrocarbon production, it is often necessary alternately to use several different tools that are installed on the floor or above the floor of the rig. For instruments that perform vertical movement along or near wells or Central axis of its casing, requires especially precise vertical movement and fast movement in the direction specified by the Central axis and in the opposite direction. An example of such work takes place during the installation or removal of the drill pipe.

The equipment used for such operations, often suspended by means of lifting operations on the rig or on the relevant structures rising above the floor of the rig. Horizontal movement is usually done by moving the suspended equipment from the center of the tower or using a hoisting means, in particular crane. The load suspended on the cables while lifting is a danger to personnel on the floor of the drilling rig, and, in addition, there is always the danger of swinging of the suspended load due to fluctuations in the tower, the influence of wind or etc.

Disclosure of inventions

The objective of the invention is to eliminate or reduce at least one of the disadvantages of the prior art.

This task is solved in accordance with the following description and the appended claims.

The invention provides a device for vertical directional movement of the tool to the floor of the drilling rig, with each of the one or more drilling rigs are equipped with vertical guides for the tool, in particular a sliding guide with a hydraulic cylinder, a screw or a gear rack feeding mechanism acting of his own Foundation, the mouth of blencogo on the floor of the drilling rig, and each base can be rotated around the vertical axis. The guide tool is installed at a distance from the axis of rotation of the base. The distance from the axis of rotation and orientation of the tool corresponding to the axis of rotation is provided such that the vertical projection of the sector horizontal movement of each tool at least touched point on the floor of the drilling rig, represented, for example, the center of the through holes in the floor of the rig. Each tool can be moved in a horizontal direction to an individual or group to capture the string of pipe passing vertically through the hole in the floor of the drilling rig, for example, in the form of the drill pipe or casing pipe that is associated with the well. Due to the presence of rotary support drilling units on the floor of the drilling rig tools can be rotated away from the Central axis of these drilling units, passing through the floor, for vertical movement after another tool, gripping the string of pipe, for the new capture above or below another tool. In one embodiment of the invention, the tool can also be moved radially relative to the vertical axis of rotation of the drilling rig. In another embodiment, the image is the shadow of the drilling unit can be rotated around a second vertical axis, located at a distance from the axis of rotation of the base of the drilling rig.

More specifically, the invention relates to a device for vertical directional move tool, intended for installation on the floor of the drilling rig, which is characterized by the fact that on the floor of the drilling rig has at least one drilling unit, with each drilling unit is installed on the base of the drilling rig, which rests on the floor of the drilling rig can be rotated around a first vertical axis and moves the tool in a horizontal working sector, which has a vertical projection of at least touches or crosses the Central axis passing through the through hole in the floor of the drilling rig, and each drilling unit is equipped with a vertical guide tool.

On the floor of the drilling rig can be installed in at least two drilling units, horizontal work sector of each tool of a drilling Assembly in a vertical projection at least partially overlaps or touches the working sector of the instrument one or more other drilling rigs. All tools can independently from each other to perform the work with the column of pipes running down or in the direction of the underground reservoir borehole or etc.

The tools can be installed with the possibility of radial movement relative to the axis of rotation of the base of the drilling rig. Tools that have multiple degrees of freedom and can perform a wider range of activities outside the Central axis of the through holes in the floor of the drilling rig, and perpendicular to it.

The drilling rig can be set on the basis of the drilling rig can be rotated around a second vertical axis. This increases the flexibility of maneuvering tools.

Tools can belong to a group that includes a rotating instruments, percussion instruments, fixing tools and instruments, creating pressure fluid. Thus, the invention can be used in many different combinations of technological operations.

Brief description of drawings

The following is an example description of a preferred variant of the invention with reference to the accompanying drawings, on which:

Fig.1 is a General perspective view of the first variant of the invention, containing two drilling unit, installed with a possibility of rotation relative to the holes in the floor of the drilling rig;

Fig.2 is a General perspective view of the second variant of the invention, containing three drilling is gregate, installed with a possibility of rotation relative to the holes in the floor of the drilling rig; and

Fig.3 is a top view of a variant embodiment of the invention with figure 2 with the image of the business sectors of tools.

The implementation of the invention

In the drawings, reference number 1 indicates the floor of the drilling rig that has first and second drilling unit 2A, 2b (see Fig.1) or the alternate first, second and third drilling unit 2A, 2b', 2C (see Fig.2 and 3).

Floor 1 drilling rig, essentially, in a known manner, made at least one hole 11 that is designed for through output tubes and tools, for example, to perform work in a borehole in a hydrocarbon field. The hole 11 in the floor of the drilling rig has a Central axis C.

Drilling units 2A, 2b, 2b', 2C is mounted on a base 21 of the drilling rig made in the form of a rotary pad 211. Rotary Playground 211 can be rotated around a first vertical axis and provided with a first rotary actuator 212, which can rotate the rotary platform at least in the sector Sa, Sb, Sc, respectively, see figure 3.

The first and second drilling units 2A, 2b in the figure 1 and the first and third drilling units 2A, 2C in figure 2 is rigidly connected with the rotary platform 211.

An alternative to this second drilling agreg the t 2b' according to figure 2 mounted on the rotary platform, which can be rotated around a second vertical axis C. the Rotation of the drilling unit 2b' is provided by the second rotary actuator 26, which can rotate the drilling unit 2b', at least in the sector of Sb' (see figure 3).

Drilling units 2A, 2b, 2b', 2C fitted with the guide rail 22 of the tool that includes a tool 24A, 24b, 24C, respectively. Tools 24A, 24b, 24C can be moved along the guide 22 of the tool for vertical movement relative to the floor 1 of the rig. Each tool 24A, 24b, 24C is connected to the vertical actuator 23, which can move the tools 24A, 24b, 24C along the guide 22, as well as to keep the tools 24A, 24b, 24C in the specified position.

The third tool 24C (see figure 2) is provided with a horizontal actuator 25, which can move the tool 24 in a horizontal direction relative to the drilling Assembly, the tool 24 is mounted on the horizontal guides 27.

When performing technological operations, during which interact with two or more instruments 24A, 24b, 24C, in particular, during Assembly or disassembly of the column of pipes, one of the tools 24A, 24b, 24C should be administered after one or two other instruments 24A, 24b, 24C to perform a new operation on another part of the specified column pipes. When this support is fast functioning of active instruments 24A, 24b, 24C and provides a high degree of accuracy and stability for all instruments 24A, 24b, 24C in all positions on the respective drilling units 2A, 2b, 2b', 2C. The device according to the invention is particularly preferred, if the operations are performed or should be performed continuously, in particular, when assembling or disassembling a long pipe string, such as offshore pipelines connecting surface installation deep well, and the drill pipes used in deep water or in horizontal wells.

1. Device for the controlled movement of the tool installed on the floor (1) drilling rig containing at least one drilling unit (2b') that extends from the base (21) of the drilling Assembly based on the floor (1) drilling rig can be rotated around a first vertical axis (A), at least one drilling unit (2b) contains a vertical guide (22) of the tool is located at a distance from the first vertical axis (A), in this case, rotation of the drilling Assembly (2b') around the first vertical axis (A) forms a horizontal work sector (Sb) of the first tool (24b), and the vertical projection of the specified operating sector (Sa) at least touches or crosses the Central axis (C) through hole (11) in the floor of the drilling installation is key, characterized in that at least one drilling unit (2b') is installed on the base (21) of the drilling rig can be rotated around a second vertical axis (b) which is in a horizontal direction away from the first vertical axis (A), floor (1) drilling rig has a second drilling unit (2A, 2C) containing a second instrument (24A, 24C), with a horizontal work sector (Sb) of the first tool (24b) vertical projection at least partially overlaps or touches the vertical projection of the horizontal operating sector (Sa, Sc) of the second tool (24A, 24C).

2. The device under item 1, characterized in that the tools (24A, 24b, 24C) is installed with the possibility of radial movement relative to the axis (a, b) rotation of the base (21) of the drilling rig.

3. The device under item 1, characterized in that the tools (24A, 24b, 24C) belong to the group, which includes rotating instruments, percussion instruments, fixing tools and instruments, creating pressure fluid.



 

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