RU2813014C1 - Mobile device for laying pipes or rods during tripping operations in well - Google Patents

Abstract

FIELD: oil and gas industry.

SUBSTANCE: invention can be used for laying downhole pipes and rods during tripping operations in oil and gas wells. A mobile device for laying pipes or rods during tripping operations in a well includes a frame on the transportation device with height-adjustable stands for support on the ground in the working - extended - position, the rear of which are inserted into the transverse guides of the frame, and the side ones are equipped with telescopic beams consisting from hollow guides into which rods with transverse channels for the corresponding racks are inserted. Telescopic beams for the racks oppositely directed from the frame are made in pairs, rigidly connected in pairs along the side surface of hollow guides, which are transversely, rigidly and symmetrically placed in the frame. The rods are made with the possibility of being extended in pairs in opposite directions from the hollow guide telescopic beams, as well as with the possibility of being fixed in the working position relative to the hollow guides. The length of all racks is chosen so that their upper ends in the working position rise above the frame to prevent pipes or rods from falling from the frame.

EFFECT: expanded functionality of the device due to providing rigidity in the transverse direction from the frame in the working position and a horizontal surface along the entire length of the frame in the transport position, respectively, as well as reducing the influence of the human factor during fixation from the longitudinal movement of the frame due to rigid fixation with supports from longitudinal movement in the working position.

2 cl, 2 dwg

Description

The invention relates to the field of oil and gas production and will be used for laying downhole pipes and rods during tripping operations of oil and gas wells.

The “Device for laying well pipes during the construction and repair of wells” is known (patent RU No. 2138611, MPK E21B 19/14, publ. 09.27.1999 Bulletin No. 27), including a frame, racks, receiving walkways mounted on racks, and a storage device , characterized in that the receiving walkways are equipped with a container for well and process fluids, installed under the walkways and rigidly fixed to the racks, and the storage tank is made in the form of folding sections located on the sides of the receiving walkway, with the storage sections located on one of the sides the walkway are equipped with gutters for liquid drainage, placed on each section, the outermost of which communicates with the container, and the end of each previous trough in the working position overlaps the beginning of the next one.

The disadvantages of this device are low reliability when working on unstable soils, since the rotary supports when the soil subsides (lowering under pressure onto the surface - the weight of the frame) do not increase the support area, not having rigidity in the transverse direction; the absence of limiters around the perimeter from rolling off pipes requires additional costs for the use of special stops and their installation, the axial mobility of the supports relative to the frame complicates the design and also reduces the reliability of installation, since in case of unauthorized displacement of the frame in the longitudinal direction (human factor - failure to activate the brake system), they do not hold it in the folded (transport) position there is no horizontal surface on the frame (due to folded supports) along the entire length of the frame, which requires the use of additional transport for delivering long loads (pipes, rods and/or the like) to and from the well.

The closest in technical essence is the “Installation for laying well pipes and rods during drilling and workover of wells” (patent for PM RU No. 34618, IPC E21B 19/14, publ. December 10, 2003 Bulletin No. 34), including a frame with adjustable height with racks, a storage device in the form of folding sections attached to the sides of the frame, a transportation device, characterized in that a tray is installed on the frame with the ability to move it in height, the folding sections are made in the form of folding beams, which have side stops and height-adjustable racks .

The disadvantages of this device are low reliability when working on unstable soils, since the rotary supports when the soil settles (lowering under pressure onto the surface - the weight of the frame) do not increase the support area, having no rigidity in the transverse direction in the extended (working) position, axial mobility of the supports relative to the frame, it complicates the design and also reduces the reliability of installation, since in case of unauthorized displacement of the frame in the longitudinal direction (human factor - failure to activate the brake system), it is not delayed; in the folded (transport) position there is no horizontal surface on the frame (due to folded supports) along the entire length of the frame, which requires the use of additional transport to deliver long loads (pipes, rods and/or the like) to and from the well.

The technical solution is to create a design for a mobile device for laying pipes or rods during tripping operations in a well, which allows expanding functionality due to the ability to work on unstable soils and transport long loads to and from the well by providing rigidity in the transverse direction from the frame in the working position and horizontal surface along the entire length of the frame in the transport position, respectively, and reducing the influence of the human factor when fixing against longitudinal movement of the frame due to rigid fixation against longitudinal movement by supports in the working position.

The technical result is a mobile device for laying pipes or rods during tripping operations in a well, including a frame on a transportation device with height-adjustable stands for support in the working - extended position on the ground, the rear of which are inserted into the transverse guides of the frame, and the side ones are equipped with telescopic beams consisting of hollow guides into which rods with transverse channels are inserted for the corresponding racks.

What is new is that the side beams for the racks oppositely directed from the frame are made in pairs, rigidly connected in pairs along the side surface of the guides, which are transversely, rigidly and symmetrically placed in the frame, and the length of all racks is chosen such that their upper ends in the working position rise above frame to prevent pipes or hoses from falling.

What is also new is that the upper ends of the racks are designed to interact with technological sides, increasing the contact area with pipes or rods placed on top.

In fig. Figure 1 shows a mobile device in isometric view in a transport - assembled position.

In fig. Figure 1 shows the mobile device in isometric view in its working position.

A mobile device for laying pipes or rods (not shown) during tripping operations in a well (not shown) includes a frame 1 (Fig. 1 and 2) on a transportation device 2 with adjustable heights for support on the ground (not shown) in working - extended position with racks 3 and 4, the rear 3 of which are inserted into the transverse guides 5 (Fig. 1) of the frame 1, and the side 4 (Fig. 1 and 2) - equipped with telescopic beams 6 (outriggers), consisting of hollow guides 7 , into which rods 8 with transverse channels 9 are inserted under the corresponding racks 4. The transportation device 2 can be made in the form of a sled (not shown), a cargo tractor (not shown), a cargo trailer (not shown) or a cargo semi-trailer (the authors on this do not apply). The holes in the guides 7 and the rods 8 in cross section can be round, square or rectangular (the authors do not claim this). The side beams 6 for the side posts 4 oppositely directed from the frame are made in pairs, rigidly connected in pairs along the side surface of the guides 7, which are placed transversely, rigidly and symmetrically with respect to the longitudinal axis in the frame 1. The length of all posts 3 and 4 is chosen such that their upper ends 10 in the working position (Fig. 2) rose above the frame 1 to prevent pipes or hoses from falling from it. The upper ends of the racks 3 and 4 can be configured to interact with technological sides (not shown), increasing the contact area with pipes or rods placed on top.

Structural elements and technological connections, known from the previous level of technology and not affecting the implementation of the technical solution, are not shown in the drawings (Figs. 1 and 2) or are shown conditionally.

A mobile device for laying pipes or rods during tripping operations in a well operates as follows.

In the transport position, the supports 3 (Fig. 1) and 4, respectively, in the transverse guides 5 and channels 9 of the rods 8 are raised to the upper position and fixed (with a plug-in pin, a clamping collet, a spring-loaded plate, or the like - the authors do not claim this) and the rods 8 are inserted all the way into the guides 7 of the telescopic beams 6 and are also fixed (with a plug-in pin, a clamping collet, a spring-loaded plate, or the like - the authors do not claim this). Skids 11 for sliding pipes or rods, if present, can be made removable and inserted with racks 12 into technological holes 13 in frame 1, and removed during transportation (the authors do not claim this). The upper protruding ends 10 of the supports 3 and 4 are equipped with technological sides along the perimeter of the frame 1 and pipes and/or rods are loaded inside using fixing spacers (not shown), removable skids 11 (if any), a working platform 14 (Fig. 2) with their 15 supports (if any), crew tools (pipe wrenches, chain wrenches, grippers, etc.) and removable ladders (not shown). Everything loaded inside frame 1 (Fig. 1) is fixed (with belts, cables or special clamps - not shown). To protect against precipitation, a waterproof and windproof side awning can be stretched over the ends of 10 supports and outside the technological sides (not shown - the authors do not claim this). At the same time, the width and length of the frame 1 and the transportation device 2 are ensured, not exceeding that permissible for vehicles on public roads (1. Order of the Government of the Russian Federation dated November 29, 2022 No. 3657-r "On the signing of the Agreement on permissible masses, axial loads and dimensions of vehicles when driving on highways of member states of the Eurasian Economic Union included in the Eurasian transport corridors", 2. Order of the Ministry of Transport of Russia dated 08/31/2020 No. 343 On approval of the Requirements for organizing traffic on highways of heavy and (or) large-sized vehicles vehicle). Using a vehicle (tractor, car, tractor, or the like - not shown) connected to the transportation device 2, the mobile device is delivered to the well to ensure the carrying out of tripping operations.

The transportation device 2 (Fig. 1) is installed at the location at the well determined by the technologists, installed on the theological stop 16 (if necessary) and the vehicle is uncoupled. After which frame 1 (Fig. 2) is moved to the working position. To do this, remove the awning (if any) and technologically the sides from the upper ends 10 of the supports 3 and 4, remove from the frame 1 the pipes and/or rods, removable skids 11 (if any), the working platform 14 with its supports 15 (if any), brigade tools (pipe wrenches, chain wrenches, grippers, etc.) and removable ladders (not shown). The rear supports 3 are pushed (for example, by a screw pair, rack and pinion gear, etc. - the authors do not claim this) down along the transverse guides 5 (Fig. 1) until it stops on the ground. From the hollow guides 7 of the telescopic beams 6 (Fig. 2), the rods 8 are pulled out in pairs in opposite directions until they stop (not shown) (for example, by hydraulics, a screw pair, a rack and pinion gear, or the like - the authors do not claim this) and fix ( insert pin, clamping collet, spring-loaded plate, etc. - the authors do not claim this). The side supports 4 are pushed (for example, by a screw pair, rack and pinion gear, etc. - the authors do not claim this) down the transverse channels 9 of the rods 8 until they stop on the ground. To increase the area of contact with the ground, supports 3 and 4 are equipped with plates 17 (the authors do not claim this), which, thanks to telescopic beams 6, provide a total larger support area and prevent the mobile device from falling through when used even in unstable soils. A rigid connection in the longitudinal direction of the telescopic beams 6 with supports 3 and 4 interacting with the ground provides reliable fixation of the longitudinal movement of the transportation device 2 and frame 1 relative to the ground surface, including in the longitudinal direction. If necessary, skids 11 are installed on the frame, inserting racks 12 into technological holes 13, attaching a working platform 14 (to accommodate service personnel during hoisting operations) with its supports 15. The upper protruding ends 10 of supports 3 and 4 are, if necessary, equipped with technological sides around the perimeter frame 1. If there is a working platform 14, it is also equipped with protective sides (not shown) around the perimeter. The required number of pipes or rods is loaded inside frame 1.

When lowering pipes or rods into the well, they are alternately fed to the middle of the frame 1 or to the skids 11, from where they are captured by a lifting mechanism (stationary or mobile - the authors do not claim this) and lowered into the well for drilling, repair or technological work. During lifting operations, the lifting mechanism sequentially removes pipes or rods from the well and slides them down to the middle of frame 1 or skids 11, from where they are moved mechanically or manually by service personnel to the sides onto frame 1 and rods 8.

Upon completion, the mobile device is transferred to the transport (assembled) position in the reverse order.

The proposed mobile device for laying pipes or rods during tripping operations in a well allows expanding functionality due to the ability to work on unstable soils and transport long loads to and from the well by providing rigidity in the transverse direction from the frame in the working position and a horizontal surface throughout along the frame in the transport position, respectively, and also reduces the influence of the human factor when fixing against longitudinal movement of the frame due to rigid fixation with supports against longitudinal movement in the working position.

Claims (2)

1. A mobile device for laying pipes or rods during tripping operations in a well, including a frame on a transportation device with height-adjustable stands for support on the ground in the working - extended - position, the rear of which are inserted into the transverse guides of the frame, and the side ones are equipped with telescopic beams consisting of hollow guides into which rods with transverse channels are inserted under the corresponding racks, characterized in that the telescopic beams for the racks oppositely directed from the frame are made in pairs, rigidly connected in pairs along the side surface of the hollow guides, which are transversely, rigidly and symmetrically placed in frame, the rods are made with the ability to extend in pairs in opposite directions from the hollow guide telescopic beams, as well as with the possibility of being fixed in the working position relative to the hollow guides, and the length of all racks is chosen such that their upper ends in the working position rise above the frame to prevent pipes from falling or rods from the frame. 2. A mobile device for laying pipes or rods during tripping operations in a well according to claim 1, characterized in that the upper ends of the racks are designed to interact with technological sides, increasing the contact area with the pipes or rods placed on top.