Novel single workover rig

Abstract

The utility model relates to the technical field of workover rig equipment, in particular to a novel single workover rig, a main engine trailer comprises a main engine trailer bottom plate, and a trailer supporting leg hydraulic station, a large rope bracket, a comprehensive hydraulic station, an electric winch and a lifting oil cylinder are sequentially arranged on the main engine trailer bottom plate. The main engine trailer further comprises a derrick which is arranged on one side of the main engine trailer bottom plate and is perpendicular to the main engine trailer bottom plate, the driller trailer comprises a driller trailer bottom plate, and an air source system, a blowout preventer controller, a driller room and a blowout preventer are sequentially arranged on the driller trailer bottom plate. Modularized transfer of all equipment is achieved, installation work of a crane is omitted, maneuverability of the workover rig is improved, and workload of equipment disassembly and assembly during transition is reduced. Meanwhile, the winch, the power faucet and other power equipment are electrically driven or hydraulically driven, the intermediate link of energy transfer is optimized, centralized driller control of the equipment is achieved, the working environment of personnel is improved, and energy conservation and emission reduction can be effectively achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of workover rig equipment, in particular to a novel single-rod workover rig. Background Art

[0002] In the field of petroleum equipment, workover rigs include main engines, winches, derricks, workover platforms, mobile equipment, blowout preventers and controls, gas source equipment, etc. With the development of oilfield workover operations and the continuous innovation and application of various scientific and technological advances, modern workover operations have put forward higher requirements for equipment operating efficiency, automation, HSE, and labor intensity. The shortcomings of conventional workover rigs in terms of module integration, moving work intensity, and efficiency have become increasingly significant, mainly reflected in the following aspects:

[0003] 1) Conventional workover rigs use a mast-type derrick, which generally requires 6 to 10 guy ropes to ensure load capacity and stability during operation. Each time the derrick is raised and lowered, the guy ropes must be repeatedly disassembled and assembled. At the same time, special personnel must be arranged to observe the lifting and lowering process to ensure that the wire ropes are not entangled or hung.

[0004] 2) Due to the type of derrick, the floating equipment cannot be transported with the main locomotive.

[0005] 3) The entire workover rig has too many transport modules. In addition to the main module, the workover platform, driller's room and platform, blowout preventer and control equipment, gas source equipment, etc. can only be transported by other transport vehicles during transfer, which increases the workload of disassembly and assembly during transfer and reduces transfer efficiency.

[0006] 4) Due to the low modular integration of the equipment, additional cranes and forklifts are required to assist in the installation process.

[0007] In order to solve the above-mentioned shortcomings of workover equipment and combine the technology of workover operation, a new design of single workover rig is proposed to make the installation and relocation of the workover rig simpler and more efficient. Utility Model Content

[0008] In view of the above problems, the present invention provides a new single-rod workover rig, which solves the problems in the background technology.

[0009] The technical solution adopted by the utility model to solve the technical problems is as follows: 1. A new single-root workover rig includes a main engine trailer and a driller trailer, the main engine trailer includes a main engine trailer bottom plate, on which a trailer leg hydraulic station, a large rope bracket, an integrated hydraulic station, an electric winch and a lifting cylinder are sequentially arranged, the main engine trailer also includes a derrick arranged on one side of the main engine trailer bottom plate and perpendicular to each other, the derrick is provided with a traveling block-type top drive, a top drive bracket guide rail, a crown block and a workover platform slidably arranged on the derrick, the output end of the lifting cylinder is connected to the derrick, the driller trailer includes a driller trailer bottom plate, on which an air source system, a blowout preventer control system, a driller's room and a blowout preventer are sequentially arranged, a lifting mechanism is provided between the driller's room and the driller trailer bottom plate, the driller trailer also includes a driller's room platform and a blowout preventer auxiliary guide rail, and the driller's room platform is provided with a driller's room guide rail and an electric winch for moving the driller's room.

[0010] As an optimization, the integrated hydraulic station includes a main engine hydraulic system and a top drive hydraulic system.

[0011] As an optimization, the traveling block top drive is connected to the derrick via a top drive bracket guide rail.

[0012] As an optimization, the well repair platform includes a platform lifting cylinder fixed on the derrick, a lifting gantry slidably arranged on the derrick and connected to the output end of the platform lifting cylinder, and a platform folding cylinder and a platform body rotatably arranged on the lifting gantry, and the output end of the platform folding cylinder is connected to the bottom surface of the platform body.

[0013] As an optimization, the derrick is provided with a C-shaped guide rail, and the lifting gantry is provided with a rotating bearing and a straightening roller that cooperate with the C-shaped guide rail.

[0014] As an optimization, the derrick is an upright single-section derrick without guy lines.

[0015] As an optimization, the lifting mechanism includes a lifting mechanism frame, the lifting mechanism frame includes lifting cylinders respectively arranged on both sides, a lifting platform is provided between the two lifting cylinders, guide pulley groups are provided at both ends of the lifting platform and between the lifting cylinders, the guide pulley group is provided with a steel wire rope with one end connected to the lifting platform and the other end connected to the output end of the lifting cylinder, and double guide rails are provided on the lifting platform.

[0016] As an optimization, the driller trailer is further provided with a sunshade, and a trailer leg hydraulic station is provided under the bottom plate of the driller trailer.

[0017] The beneficial effects of the present invention are as follows: the present invention provides a new type of single-rod workover rig that realizes modular transportation of all equipment, eliminates the need for crane installation, improves the maneuverability of the workover rig, and reduces the workload of equipment disassembly and assembly during transfer; at the same time, the winch, power swivel, and other power equipment are electrically or hydraulically driven, optimizing the intermediate links of energy transmission and realizing centralized driller control of the equipment, which not only improves the working environment of personnel but also effectively saves energy and reduces emissions. This is specifically reflected in the following aspects:

[0018] 1) Adopting an integrated design concept, the entire equipment set consists of two modules: the main engine trailer and the driller trailer. The main engine trailer is integrated with the winch, derrick, integrated hydraulic station, traveling equipment, workover platform and other equipment; the driller trailer is integrated with the blowout preventer and control module, driller's room, gas source system and other equipment.

[0019] 2) The winch adopts an integrated electric drive design, which reduces the power transmission links and can operate not only using conventional generator sets but also using grid power or electric energy storage modules.

[0020] 3) The integrated hydraulic station not only integrates the functions of the conventional workover rig hydraulic system, but also integrates the hydraulic system of the power swivel or top drive, thereby reducing the transportation modules of the separate hydraulic station for the power swivel or top drive.

[0021] 4) The derrick is an upright single-section guy-rope-free derrick, which can meet the needs of well repair operations and reduce the work of guy-rope installation.

[0022] 5) The traveling system can be transported along with the derrick without being dismantled.

[0023] 6) The minor repair platform is hydraulically lifted and folded, and does not require manual installation.

[0024] 7) The driller's room adopts hydraulic lifting and guide rail translation, which can achieve accurate positioning during operation and reduce installation workload.

[0025] 8) The blowout preventer can be moved to the wellhead via a guide rail and then lifted and installed using a mobile device, saving crane operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 Workover rig working status (front view)

[0027] Figure 2 Workover rig working status (top view)

[0028] Figure 3 Host working status

[0029] Figure 4 Mainframe walking status (front view)

[0030] Figure 5 The workover platform is in low-position folding and high-position unfolding states

[0031] Figure 6 Driller trailer working status

[0032] Figure 7 Driller's room lifting mechanism (front view)

[0033] Figure 8 Driller trailer working status (side view)

[0034] Figure 9 Driller trailer working status (top view)

[0035] Figure 10 Driller trailer in motion (front view)

[0036] Among them: trailer outrigger hydraulic station 1, large rope bracket 2, integrated hydraulic station 3, electric winch 4, lifting cylinder 5, workover platform 6, derrick 7, traveling top drive 8, top drive bracket and guide rail 9, overhead crane 10, lifting cylinder 11, lifting gantry 12, folding cylinder 13, platform body 14, air source system 15, awning 16, blowout preventer control 17, driller's room 18, lifting mechanism frame 19, lifting mechanism 20, blowout preventer 21, blowout preventer guide rail 22, trailer outrigger hydraulic station 23, lifting cylinder 24, lifting platform 25, guide rail 26, guide pulley block 27, blowout preventer auxiliary guide rail 28, driller's platform 29, driller's room guide rail 30, electric winch 31. DETAILED DESCRIPTION

[0037] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which the present application belongs.

[0038] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0039] For the convenience of description, if the words "up", "down", "left" and "right" appear in this utility model, they only indicate that they are consistent with the up, down, left and right directions of the drawings themselves, and do not limit the structure. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, they should not be understood as limiting the present utility model.

[0040] A novel single-root workover rig includes a main engine trailer and a driller trailer. The main engine trailer includes a main engine trailer bottom plate, on which are arranged in sequence a trailer leg hydraulic station 1, a large rope bracket 2, an integrated hydraulic station 3, an electric winch 4, and a lifting cylinder 5. The main engine trailer also includes a derrick 7 arranged on one side of the main engine trailer bottom plate and perpendicular to each other. The derrick 7 is provided with a traveling block top drive 8, a top drive bracket guide rail 26, a crown block 10, and a workover platform 6 slidably arranged on the derrick 7. The output end of the lifting cylinder 5 is connected to the derrick 7. The driller trailer includes a driller trailer base plate, on which are sequentially arranged an air source system 15, a blowout preventer control system 17, a driller's cabin 18, and a blowout preventer 21. A lifting mechanism 20 is provided between the driller's cabin 18 and the driller trailer base plate. The driller trailer also includes a driller's cabin platform and a blowout preventer auxiliary guide rail 28. The driller's cabin platform is provided with a driller's cabin guide rail 30 and an electric winch 31 for moving the driller's cabin 18.

[0041] like Figure 1 and Figure 2 The workover rig of the present invention is shown in the working state. It consists of a main engine trailer and a driller trailer, including a main line, an integrated hydraulic station 3, a winch, a derrick 7, a top drive, a crown block 10, a driller's room 18, a workover platform 6, a blowout preventer 21, a blowout preventer control 17, an air source system 15, a ladder, and other auxiliary equipment.

[0042] like Figure 3The main engine trailer is shown in the working state, which includes the trailer leg hydraulic station 1, large rope bracket 2, integrated hydraulic station 3, electric winch 4, lifting cylinder 5, workover platform 6, derrick 7, traveling block top drive 8, top drive bracket and guide rail 9, overhead crane 10 and other main engine accessories. The integrated hydraulic station 3 integrates the main engine hydraulic system and the top drive hydraulic system, which can not only realize the lifting of the derrick 7 and the use of hydraulic auxiliary winches, power tongs and other equipment, but also provide power for the lifting, folding and top drive assembly operation of the well repair platform 6; the well repair platform 6 adopts hydraulic lifting and folding, and can be unfolded and raised to the working height during operation, and folded and lowered to the transfer position during transportation; the derrick 7 is an upright single-section structure design, which is lifted and lowered by the lifting cylinder 5, and the wind-loaded guy ropes are eliminated, leaving only two internal load guy ropes connected from the overhead crane 10 to the main engine vehicle; the top drive assembly is connected to the front thigh of the derrick 7 through the top drive bracket and the guide rail 9, which can realize the top drive guidance during operation and the vehicle-mounted transfer when the main engine is moving.

[0043] like Figure 4 The host trailer is in walking state, which can be achieved without using a crane Figure 3 The switching of equipment operation and transportation status shown in the figure realizes "one-car" transportation.

[0044] Figure 5 As shown in the low-position folded and high-position unfolded states of the well repair platform 6, the lifting gantry 12 on the well repair platform 6 is provided with a rotating bearing and a straightening roller, which cooperates with the C-shaped guide rail 26 on the derrick 7 and is lifted up and down by the lifting cylinder 11. At the same time, the platform body 14 can be folded 0 to 90 degrees by the folding cylinder 13.

[0045] Figure 6 and Figure 8 The driller trailer in operation (front and top views) shows the driller trailer integrated with the air supply system 15, awning 16, BOP control system 17, driller's cabin 18, lifting mechanism frame 19, lifting mechanism 20, BOP 21, BOP rails 22, BOP auxiliary rails 28, driller platform 29, and other auxiliary equipment. The BOP control system 17 and BOP 21 are located on the same trailer. During operation, the BOP auxiliary rails 28 are connected to the BOP rails 22 on the trailer. Rails 26 allow the BOP 21 to be moved between the trailer and the wellhead, enabling the transition between operating and transport positions without removing the BOP control system 17 piping, eliminating the need for disassembly and installation of control piping. The driller's cabin 18 is adjusted from the low position on the trailer to the working height through the lifting mechanism 20. The driller's cabin 18 can be moved along the guide rails 26 on the awning 16 and the driller's platform 29 through the electric winch 31 to achieve the conversion between the working position and the transfer position, eliminating the work of manual installation of the driller's cabin 18. Only the wiring of the driller's cabin 18 needs to be completed.

[0046] Figure 7The driller's cabin lifting mechanism (20) is shown as follows: it includes a lifting cylinder 24, a lifting platform 25, guide rails 26, a guide pulley assembly 27 (consisting of two fixed pulleys and one movable pulley), and other auxiliary equipment. The extension and retraction of the lifting cylinder 24 drives the movable pulley of the guide pulley assembly 27 up and down, thereby driving the wire rope along the guide pulley assembly 27 to retract and extend, thereby raising and lowering the lifting platform 25. When the lifting platform 25 is integrated with the driller's cabin 18, the driller's cabin 18 can be raised and lowered. Furthermore, the lifting mechanism frame 19 and the lifting cylinder 24 are both guided to ensure stable raising and lowering of the driller's cabin 18.

[0047] Figure 9 As shown in the working state of the driller trailer (side view), the driller's cabin 18 can be moved to the driller's platform 29 via the guide rails 26 to achieve the working position; the blowout preventer 21 can be moved to the wellhead position via the blowout preventer auxiliary guide rails 28, and the blowout preventer 21 can be lifted by the traveling top drive 8 to achieve crane-free installation operation.

[0048] like Figure 10 The driller trailer is shown in the walking state, which can be achieved without the use of a crane. Figure 6 and Figure 8 The switching of equipment operation and transportation status shown in the figure realizes "one-car" transportation.

[0049] The above-mentioned specific implementation methods are only specific cases of the present utility model. The scope of patent protection of the present utility model includes but is not limited to the product form and style of the above-mentioned specific implementation methods. Any appropriate changes or modifications made to them by ordinary technicians in the relevant technical field that comply with the claims of the present utility model shall fall within the scope of patent protection of the present utility model.

Claims

1. A new type of single well workover rig, characterized by: The derrick is a pneumatic derrick with a plurality of cams and a plurality of cams connected to the derrick. The derrick is a pneumatic derrick with a plurality of cams and a plurality of cams connected to the derrick. The derrick is a pneumatic derrick with a plurality of cams and a plurality of cams connected to the derrick. The derrick is a pneumatic derrick with a plurality of cams and a plurality of cams connected to the derrick.

2. The new single-rod workover rig according to claim 1 is characterized in that: The integrated hydraulic station includes a main engine hydraulic system and a top drive hydraulic system.

3. The new single-rod workover rig according to claim 1 is characterized in that: The traveling block type top drive is connected to the derrick via a top drive bracket guide rail.

4. The new single-rod workover rig according to claim 3 is characterized by: The well repair platform includes a platform lifting cylinder fixed on the derrick, a lifting gantry slidably arranged on the derrick and connected to the output end of the platform lifting cylinder, and a platform folding cylinder and a platform body rotatably arranged on the lifting gantry, and the output end of the platform folding cylinder is connected to the bottom surface of the platform body.

5. The new single-rod workover rig according to claim 4 is characterized in that: The derrick is provided with a C-shaped guide rail, and the lifting gantry is provided with a rotating bearing and a straightening roller that cooperate with the C-shaped guide rail.

6. The new single-rod workover rig according to claim 5 is characterized by: The derrick is an upright single-section derrick without guy ropes.

7. The new single-rod workover rig according to claim 1 is characterized by: The lifting mechanism includes a lifting mechanism frame, and the lifting mechanism frame includes lifting cylinders respectively arranged on both sides. A lifting platform is provided between the two lifting cylinders, and guide pulley groups are provided between the two ends of the lifting platform and the lifting cylinders. The guide pulley group is provided with a steel wire rope with one end connected to the lifting platform and the other end connected to the output end of the lifting cylinder. Double guide rails are provided on the lifting platform.

8. The new single-rod workover rig according to claim 7 is characterized in that: The driller trailer is also provided with a sunshade, and a trailer leg hydraulic station is provided under the bottom plate of the driller trailer.

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