CN219220304U - Workover rig with folding wellhead operation platform - Google Patents

Workover rig with folding wellhead operation platform Download PDF

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Publication number
CN219220304U
CN219220304U CN202320192799.3U CN202320192799U CN219220304U CN 219220304 U CN219220304 U CN 219220304U CN 202320192799 U CN202320192799 U CN 202320192799U CN 219220304 U CN219220304 U CN 219220304U
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China
Prior art keywords
operation platform
wellhead
workover rig
platform
folding
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CN202320192799.3U
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Chinese (zh)
Inventor
崔世广
郭嵩
郭永红
王毅
刘津伟
黄海阔
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Tianjin Runyi Technical Service Co ltd
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Tianjin Runyi Technical Service Co ltd
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Abstract

The utility model relates to a workover rig with a folding wellhead operation platform, which comprises a workover rig truss structure formed by four supporting legs, pulley blocks, steel wire ropes and a big hook, wherein the supporting legs of the workover rig truss structure, which are close to the wellhead side, are fixedly connected with the wellhead operation platform, the wellhead operation platform comprises a near-end supporting leg, a far-end supporting leg and an operation platform, the near-end supporting leg is fixedly connected with the wellhead side supporting leg of the workover rig truss structure through connecting blocks, four pairs of lug plates are arranged on two sides of the operation platform, the near-end supporting leg and the far-end supporting leg are hinged with the lug plates to form the folding operation platform structure attached to the workover rig, and an opening type process space for avoiding the wellhead production tree is arranged in the middle of the operation platform corresponding to the wellhead position. The beneficial effects are that: the operation platform is not required to be lifted and transported independently, the original derrick car is utilized for transportation, and the transport capacity and crane equipment are saved; the folding operation platform is safe in installation and folding processes, and time and labor are saved; the traditional process of lifting and installing the independent operation platform is omitted.

Description

Workover rig with folding wellhead operation platform
Technical Field
The utility model belongs to the field of oilfield oil extraction construction operation, and particularly relates to a derrick with a folding wellhead operation platform.
Background
The well dredger is one kind of main equipment for oil field well repairing operation and consists of well repairing frame and power mechanism. The power mechanism is typically located on a hydraulic lift truck. The workover rig is a truss structure with the height of more than 20 meters, and the bottom of the workover rig is hinged with a chassis bracket on the ground so as to adjust the positions of the workover rig and a wellhead. The top of the workover rig is provided with a working fence, the top of the workover rig is provided with a pulley block, the pulley block penetrates through a steel wire rope, one end of the steel wire rope is connected with a big hook, the other end of the steel wire rope is wound on a winch connected with a power machine, and the steel wire rope pulls the big hook to reciprocate up and down through controlling the winch to finish lifting and descending of an oil pipe and a sucker rod in an oil well. The workover rig is installed in well head one side during operation, fixes with top guy wire all around, generally inclines to the well head direction at about 85 degrees with ground, makes the big hook of workover rig just aim at well head center, and the purpose is to reduce the transverse force of lifting oil pipe or the oil line in-process down. During well repair operation, an operation platform needs to be built around the periphery of the wellhead, so that a construction space is provided for workers. The operating platform is formed by combining steel structures, the weight of the operating platform is very large, and the lifting and the carrying are very difficult. When the well repairing operation is carried out off site, the well dredging machine is transported to the next well site through the hydraulic lifting truck, the well repairing frame is arranged at the well head, the operating platform is lifted near the well head through the lifting crane, and then the well repairing machine is installed right above the well head after being lifted by a large hook of the well repairing frame winch by an on-site operator. Because the derrick repairing hook is arranged right above the wellhead, the wellhead is also provided with the christmas tree, the operating platform is placed on the side face of the wellhead, the operating platform is obliquely lifted during lifting, a plurality of workers are required to drag the operating platform with shaking ropes, the derrick repairing hook is prevented from being collided with the christmas tree of the derrick or the wellhead, the operation is time-consuming and labor-consuming, and potential safety hazards exist. In oil extraction well repair operation, a folding operation platform is required to be developed, and is attached to a well repair frame. Not only can the transportation cost be reduced, but also the installation and the stowing procedures of the operation platform are simplified, so that the on-site operation is time-saving, labor-saving and safer.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art, and provides the derrick with the folding wellhead operation platform, which is arranged on the derrick to become an integral accessory of the derrick, so that the installation and retraction procedures of the operation platform are simplified, and the field operation is time-saving and labor-saving and safer.
The utility model aims to achieve the purpose, and the derrick is realized by the following technical scheme that the derrick is provided with a folding wellhead operation platform, and comprises a derrick truss structure consisting of four supporting legs, pulley blocks, steel wires and a big hook, wherein the supporting legs of the derrick truss structure, which are close to the wellhead side, are fixedly connected with the wellhead operation platform, the wellhead operation platform comprises a near-end supporting leg, a far-end supporting leg and an operation platform, the near-end supporting leg is fixedly connected with the supporting legs of the wellhead side of the derrick truss structure through connecting blocks, four pairs of lug plates are arranged on two sides of the operation platform, the near-end supporting leg and the far-end supporting leg are hinged with the lug plates to form the folding operation platform structure attached to the derrick, and an opening type process space for avoiding the wellhead oil extraction tree is arranged in the middle of the operation platform corresponding to the wellhead position.
Further, a plurality of pin holes are uniformly distributed on the proximal support leg along the longitudinal direction of the proximal support leg and are used for adjusting the height of the operating platform, and an angle is arranged on the fixedly connected side of the connecting block and the workover rig support leg, so that the axis of the fixedly connected proximal support leg is vertical to the ground.
Further, a plurality of pin holes are uniformly distributed on the distal support leg along the longitudinal direction of the distal support leg for adjusting the height of the operation platform, and a support bottom plate is fixedly connected to the bottom of the distal support leg.
Further, the shape of the operation platform is a steel structure frame structure, the steel plate net is paved on the operation platform, the frames on two sides of the operation platform are respectively hinged with the auxiliary operation platform through hinges, and the steel plate net is paved on the auxiliary operation platform.
Further, fence sockets are arranged on the periphery of the side frame of the auxiliary operation platform, and the auxiliary operation platform is inserted into the operation platform fence through the fence sockets.
Further, the open-type process space pavement on the operation platform is provided with two semicircular steel grids, the formed whole round structure is aligned with the wellhead position, and the folding small doors of the steel grids are paved on the opening of the operation platform.
Further, the operation platform is lapped with the steel structure cat ladder.
The beneficial effects are that: compared with the prior art, the workover rig is simple and convenient to transport by the folding operation platform, does not need to independently lift, transport and operate the platform, utilizes the original derrick car for transportation, and saves transport capacity and crane equipment; the folding operation platform is safe in installation and retraction process, and time and labor are saved; after the workover rig is installed at the well head, utilize the workover rig winch to put operating platform flat, can work after installing rail and cat ladder and adjusting the height, saved the process that the independent operating platform lifted by crane, installed, use manpower sparingly, operation safety. The fence adopts the grafting mode, and the cat ladder adopts the overlap joint mode, and the installation is dismantled simply. When the operation platform is folded, the rail and the ladder stand are removed, and the operation platform can be folded to be attached to the derrick by using the derrick winch, so that the operation is simple; the height adjustment range is large, and the operation is simple and convenient; the pin shafts are arranged in different holes of the near-end supporting legs and the far-end supporting legs, so that the height of the operation platform can be adjusted, the range can reach 2 meters, and the operation platform can be suitable for most oil wells in oil fields; simple structure and low cost. The folding structure of the main operation platform and the two auxiliary operation platforms is adopted, so that the requirement on the transportation width can be compounded, the area of the operation platform can be increased, and the wellhead operation is facilitated. The height adjustment can be completed by the self hook of the workover rig without other hydraulic or screw mechanisms, and the workover rig has simple structure and low cost.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a schematic view of the structure of an open process space in the middle of the operating platform;
FIG. 4 is a side view of the folded state;
fig. 5 is a schematic diagram of the working state of the conventional tractor hoist.
In the figure: 1. 1-1 parts of workover rig truss structure, 1-2 parts of landing legs, pulley blocks, 1-3 parts of steel wire ropes, 1-4 parts of hooks, 2 parts of wellhead operation platforms, 2-1 parts of proximal landing legs, 2-2 parts of distal landing legs, 2-3 parts of operation platforms, 2-4 parts of auxiliary operation platforms, 3 parts of connection blocks, 4 parts of ear plates, 5 parts of christmas tree, 6 parts of open-type process spaces, 7 parts of pin holes, 8 parts of support bottom plates, 9 parts of steel plate meshes, 10 parts of hinges, 11 parts of fence sockets, 12 parts of fences, 13 parts of semicircular steel grids, 14 parts of folding small doors, 15 parts of climbing ladders.
Detailed Description
The following detailed description of the embodiments according to the present utility model is provided with reference to the preferred embodiments: referring to the drawings in detail, this embodiment provides a workover rig with folding wellhead operation platform, including four landing legs 1-1, assembly pulley 1-2, wire rope 1-3, the workover rig truss structure 1 that hook 1-4 constitutes, the rigid coupling has wellhead operation platform 2 on the landing leg that the workover rig truss structure is close to the wellhead side, wellhead operation platform includes proximal end landing leg 2-1, distal end landing leg 2-2 and operation platform 2-3, proximal end landing leg passes through connecting block 3 and the well head side landing leg rigid coupling of workover rig truss structure, the operation platform both sides are equipped with four pairs of otic placode 4, proximal end landing leg and distal end landing leg are articulated with the otic placode, constitute the folding operation platform structure that the workover rig is attached, the open-type process space 6 that dodges wellhead tree 5 is equipped with corresponding well head position in the middle of the operation platform.
The preferred scheme of this embodiment is, near-end landing leg has a plurality of pinhole 7 along its longitudinal equipartition for adjust operation platform and workover rig relative height, connecting block and workover rig landing leg rigid coupling side are equipped with the angle, guarantee that the near-end landing leg axis of rigid coupling is perpendicular with ground. The angle between the fixedly connected side of the support leg of the workover rig and the horizontal line is 85 degrees.
The preferred scheme of this embodiment is, the distal end landing leg has a plurality of pinhole along its longitudinal equipartition for adjust operation platform height, in order to satisfy the uneven environmental condition in workover rig construction environment ground. The bottom of the far-end supporting leg is fixedly connected with a supporting bottom plate 8.
In the preferred scheme of the embodiment, the operation platform is in a steel structure frame structure, the steel plate net 9 is paved on the operation platform, the frames on two sides of the operation platform are respectively hinged with the auxiliary operation platforms 2-4 through hinges 10, and the steel plate net is paved on the auxiliary operation platforms.
In the preferred scheme of this embodiment, rail sockets 11 are arranged on the periphery of the side frame of the auxiliary operation platform, and the auxiliary operation platform is inserted into the operation platform rail 12 through the rail sockets.
In the preferred scheme of the embodiment, the open type process space pavement on the operation platform is provided with two semicircular steel grids 13, the formed full-circle structure is aligned with the wellhead position, and the folding small door 14 which is positioned at the opening of the operation platform and is connected with the steel grids by adopting pavement or hinges is arranged. The folding small door of the embodiment is paved.
In the preferred scheme of the embodiment, the operation platform is lapped with the crawling ladder 15 of the steel structure.
Principle of operation
1. Installation process
1. Installing a workover rig on one side of a wellhead according to an operation standard, and determining the height of an operation platform according to the actual condition of the wellhead;
2. hoisting the operation platform by using a winch hook, adjusting the height of the operation platform to be proper, and inserting a pin shaft of the proximal supporting leg;
3. the remote end of the operation platform is hung by a large hook, the operation platform is slowly put down, the remote end supporting legs naturally drop to be vertical to the ground, the relative heights of the remote end supporting legs and the operation platform are adjusted, and a hinge pin is inserted into a pin hole to enable the operation platform to be kept parallel to the ground.
4. The rail is inserted around the operation platform to prevent the operator from falling; the ladder stand is a channel for workers to operate the platform up and down;
5. and closing the steel grid folding small door at the opening of the operation platform, installing a semicircular hole steel grid to enclose the Christmas tree, and finishing the installation of the operation platform.
Description: fig. 1 is a diagram of a derrick truss structure by adopting a screenshot mode, because: the winch hook needs to be coincident with the wellhead center line along the center line of the winch hook, and the workover rig forms an angle of 85 degrees relative to the ground.
2. Working process
The operation platform is proper in height, and well repair operation can be performed after the accessory is installed.
3. Stowing process
1. Taking out the fence, the semicircular steel grid and the cat ladder;
2. hoisting the far end of the operating platform by using a workover rig winch, and rotating the operating platform around a pin roll of a supporting leg at the near end until the operating platform is attached to the workover rig;
3. the two auxiliary operation platforms are folded to be attached to the side face of the workover rig, the far-end supporting legs naturally droop, the folding process is completed, the whole operation platform and the workover rig are folded together, then can be transported by a derrick car,
4. the open-type process space is arranged, so that interference between the operation platform and wellhead related equipment in the folding process of the operation platform is prevented. The folding small door of the operation platform hinged steel grid can be folded to be attached to the operation platform, and at the moment, the operation platform is in a U-shaped opening structure, so that the operation platform is ensured to be folded smoothly.
The foregoing detailed description of a workover rig with a collapsible wellhead operating platform, with reference to the embodiments, is illustrative and not limiting, and several embodiments may be listed in the scope of the disclosure, and therefore variations and modifications may be made without departing from the general inventive concept.

Claims (7)

1. The utility model provides a take folding well head operation platform's workover rig, includes four landing legs, assembly pulley, wire rope, big hook constitution's workover rig truss structure, characterized by: the well head operation platform is fixedly connected to the support leg of the well head side, the well head operation platform comprises a proximal support leg, a distal support leg and an operation platform, the proximal support leg is fixedly connected with the well head side support leg of the well head truss structure through a connecting block, four pairs of lugs are arranged on two sides of the operation platform, the proximal support leg and the distal support leg are hinged with the lugs to form a folding operation platform structure attached to the well head truss, and an opening type process space for avoiding a wellhead christmas tree is arranged in the middle of the operation platform corresponding to the well head position.
2. The workover rig of claim 1 with a collapsible wellhead operating platform, wherein: the near-end landing leg is longitudinally and uniformly provided with a plurality of pin holes for adjusting the height of the operating platform, and the fixedly connected side of the connecting block and the landing leg of the workover rig is provided with an angle to ensure that the axis of the fixedly connected near-end landing leg is vertical to the ground.
3. The workover rig of claim 1 with a collapsible wellhead operating platform, wherein: the remote supporting leg is longitudinally and uniformly provided with a plurality of pin holes for adjusting the height of the operating platform, and the bottom of the remote supporting leg is fixedly connected with a supporting bottom plate.
4. The workover rig of claim 1 with a collapsible wellhead operating platform, wherein: the operation platform is in a steel structure frame structure, the steel plate net is paved on the operation platform, the side frames on two sides of the operation platform are respectively hinged with the auxiliary operation platform through hinges, and the steel plate net is paved on the auxiliary operation platform.
5. The workover rig of claim 4 with a collapsible wellhead operating platform, wherein: and fence sockets are arranged on the periphery of the side frame of the auxiliary operation platform, and the auxiliary operation platform is inserted into the operation platform fence through the fence sockets.
6. The workover rig of claim 1 with a collapsible wellhead operating platform, wherein: the open-type process space pavement on the operation platform is provided with two semicircular steel grids, the formed full-circle structure is aligned with the wellhead position, and the folding small door of the steel grids is paved on the opening of the operation platform.
7. The workover rig of claim 1 with a collapsible wellhead operating platform, wherein: and the operating platform is lapped with the steel structure cat ladder.
CN202320192799.3U 2023-02-09 2023-02-09 Workover rig with folding wellhead operation platform Active CN219220304U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202320192799.3U CN219220304U (en) 2023-02-09 2023-02-09 Workover rig with folding wellhead operation platform

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202320192799.3U CN219220304U (en) 2023-02-09 2023-02-09 Workover rig with folding wellhead operation platform

Publications (1)

Publication Number Publication Date
CN219220304U true CN219220304U (en) 2023-06-20

Family

ID=86735129

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202320192799.3U Active CN219220304U (en) 2023-02-09 2023-02-09 Workover rig with folding wellhead operation platform

Country Status (1)

Country Link
CN (1) CN219220304U (en)

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