Derrick type coiled tubing working vehicle

Abstract

The utility model relates to a derrick type coiled tubing operation vehicle, and belongs to the technical field of petroleum machinery. According to the technical scheme, the device comprises a coiled tubing derrick assembly (4) and an injection head assembly (7) which are arranged at the tail of a semitrailer (1), an injection head base is arranged in an overturning platform (404), and an injection head of the injection head assembly (7) is fixed to the injection head base (701) through a pin shaft; and the injection head assembly (7) is driven to lift and move back and forth and left and right along the portal frame structure through the movement of the lifting platform and the overturning platform. The operation vehicle is compact in structure and complete in function, is equipped with a derrick system, can operate independently, does not need the assistance of equipment such as a crane, reduces the operation cost, shortens the waiting preparation time, can realize the actions such as horizontal displacement, vertical displacement and turnover of the injection head, and is easy and quick to align a wellhead.

Description

Technical Field

[0001] This utility model relates to a derrick-type continuous tubing work vehicle, belonging to the field of petroleum machinery technology. Background Technology

[0002] Existing coiled tubing installation equipment requires crane assistance during on-site operations. The crane lifts the injection head above the wellhead, increasing the difficulty of on-site work, and resulting in long preparation times and high construction costs. Chinese Patent CN 201520188049.4 discloses a telescopic derrick type coiled tubing installation vehicle, which solves the problem of not needing a large-tonnage crane to lift the injection head by combining a chassis vehicle with a telescopic derrick assembly. However, it still has the following problems: 1. The structural layout of the vehicle is unreasonable and its function is limited, only carrying the telescopic derrick assembly, injection head assembly, blowout preventer assembly, and blowout preventer assembly. Equipment such as tubing rollers and hose rollers cannot be transported together. 2. When in use, the telescopic derrick assembly is suspended only by steel wire, which presents installation problems and prevents the injection head assembly and other components from moving in all directions, making precise alignment with the wellhead impossible. Utility Model Content

[0003] The purpose of this utility model is to provide a derrick-type coiled tubing work vehicle with a reasonable structural layout, higher efficiency, stronger operating capacity, and lower construction cost, thereby solving the aforementioned problems in the background technology.

[0004] The technical solution of this utility model is:

[0005] A derrick-type coiled tubing work vehicle includes a coiled tubing derrick assembly and an injection head assembly located at the rear of a semi-trailer. The coiled tubing derrick assembly includes a fixed derrick, a lifting mechanism, a lifting platform, a tilting platform, a main winch, lifting cylinders, tilting cylinders, translation cylinders, an upper derrick, and derrick pulleys. The fixed derrick is welded to the semi-trailer, and the bottom of the upper derrick is hinged to the fixed derrick, forming a portal frame structure. Two lifting cylinders are located on the front side of the portal frame structure, and the cylinder bodies of the two lifting cylinders are fixed to the semi-trailer. The levers of the two lifting cylinders are respectively connected to the frame of the upper derrick. The upper derrick is lifted and lowered by the extension and retraction of the lifting cylinders.

[0006] The portal frame structure has slide rails and a lifting mechanism that matches the slide rails on both sides. The lifting mechanism is slidably connected to the lifting platform. The lifting platform is equipped with a main winch with a steel wire rope wound on it. The end of the steel wire rope goes around the uppermost pulley of the upper derrick and then returns to the lifting platform and connects to it. The lifting platform is raised and lowered by the steel wire rope of the main winch.

[0007] Motors are installed on both sides of the lifting platform. Nuts are installed on the lifting mechanism on both sides of the portal frame structure. The motor is driven and connected to one end of the lead screw on the same side, and the other end of the lead screw is threaded and connected to the nut on the same side. The motor drives the lead screw to rotate, thereby driving the lifting platform to move back and forth.

[0008] The rear of the lifting platform is equipped with a rotating shaft and its bearing seat. The tilting platform is rotatably connected to the rotating shaft. The lifting platform is equipped with a tilting cylinder, and the lever of the tilting cylinder is connected to the tilting platform. The extension and retraction of the tilting cylinder pulls the tilting platform to rotate back and forth along the rotating shaft. The tilting platform has a rectangular frame structure. The lifting platform is equipped with a translation cylinder, and the lever of the translation cylinder is connected to the tilting platform. The extension and retraction of the translation cylinder drives the tilting platform to slide left and right along the rotating shaft in the vehicle width direction. The tilting platform is equipped with an injection head base. The injection head of the injection head assembly is fixed to the injection head base by a pin. The movement of the lifting platform and the tilting platform drives the injection head assembly to move up and down, back and forth, and left and right along the portal frame structure.

[0009] Furthermore, the top two sides of the upper derrick are respectively connected to one end of two cable-stayed assemblies, and the two cable-stayed assemblies are respectively connected to corresponding support assemblies, which are fixed on the semi-trailer.

[0010] Furthermore, the semi-trailer is also equipped with a power station, generator, control room, tubing roller, hose roller and blowout preventer arranged sequentially from front to back, with the blowout preventer located on the side of the fixed derrick; in the transport state, the upper derrick is placed horizontally on top of the generator, control room, coiled tubing derrick assembly, tubing roller, hose roller and blowout preventer.

[0011] Furthermore, an auxiliary winch is provided on the rear side of the lifting platform for hoisting auxiliary equipment.

[0012] Furthermore, the number of derrick pulleys is two, symmetrically arranged on the upper crossbeam of the upper derrick. The upper surface of the lifting platform is provided with platform pulley one and platform pulley two symmetrically arranged on the left and right. A steel wire rope is wound on the main winch. The end of the steel wire rope passes around the derrick pulley on the same side and then returns to the lifting platform. It then passes around platform pulley one and platform pulley two in sequence and returns to the derrick pulley on the other side before returning to the lifting platform and being fixedly connected to it.

[0013] Furthermore, the lifting mechanism comprises a slider and a support frame connected to the slider. The slider is slidably mounted on the slide rails on both sides of the portal frame structure, and the lifting platform is slidably mounted on the support frame.

[0014] The positive effects of this utility model are:

[0015] 1. It adopts a work vehicle type chassis with excellent performance and strong load-bearing capacity. It is suitable for driving on non-grade roads and oilfield field conditions, and is easy to move.

[0016] 2. The system operates using an independent power system, which provides strong power and good stability;

[0017] 3. The work vehicle has a compact structure, complete functions, and is equipped with a derrick system. It can operate independently without the need for cranes or other equipment, reducing operating costs and waiting preparation time.

[0018] 4. High degree of automation, low labor intensity for operators, and low personnel requirements;

[0019] 5. The work vehicle can perform horizontal displacement, vertical displacement, and flipping of the injection head, making wellhead alignment easy and quick. Attached Figure Description

[0020] Figure 1 This is the front view of the present utility model;

[0021] Figure 2 This is a top view of the present invention;

[0022] Figure 3 This is a left-side axonometric drawing of the power station of this utility model;

[0023] Figure 4 This is the right-side axonometric view of the power station of this utility model;

[0024] Figure 5 This is an isometric drawing of the oil pipe drum of this utility model;

[0025] Figure 6 This is an isometric drawing of the derrick of this utility model;

[0026] Figure 7 for Figure 6 Enlarged view of Part I;

[0027] Figure 8 This is the main view of the derrick of this utility model;

[0028] Figure 9 for Figure 8 Enlarged view of the L section;

[0029] Figure 10 This is a schematic diagram of the wire rope suspension structure of this utility model;

[0030] In the diagram: 1. Semi-trailer; 2. Power station; 3. Control room; 4. Coiled tubing derrick; 5. Tubing roller; 6. Hose roller; 7. Injection head assembly; 8. Blowout preventer; 9. Generator; 10. Maintenance pedal; 11. Tool table.

[0031] Skid frame 201, radiator 202, battery box 203, engine 204, transfer case 205, hydraulic pump 206, fuel tank 207, hydraulic oil tank 208, air filter 209, hydraulic oil cooler 210, accumulator 211, muffler 212.

[0032] Fixed derrick 401, lifting mechanism 402, lifting platform 403, tilting platform 404, auxiliary winch 405, support assembly 406, cable-stayed assembly 407, main winch 408, lifting cylinder 409, tilting cylinder 410, translation cylinder 411, upper derrick 412, derrick pulley 413, platform pulley one 414, platform pulley two 415;

[0033] Slider 40201, support frame 40202;

[0034] Motor 40301, Lead Screw 40302;

[0035] 501. Roller body 502. Roller base 503. Roller drive assembly 504. Pipe system 505. Guiding and lubrication system 506. Counting system 507. Boom assembly 508.

[0036] Injection head base 701. Detailed Implementation

[0037] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0038] See attached document Figure 1-10 A derrick-type coiled tubing work vehicle includes a semi-trailer 1, a power station 2, a control room 3, a coiled tubing derrick assembly 4, a tubing roller 5, a hose roller 6, an injection head assembly 7, a blowout preventer 8, a generator 9, a maintenance pedal 10, and a tool table 11.

[0039] The semi-trailer 1 is used to transport equipment mounting components. It has excellent chassis performance and strong load-bearing capacity, and is suitable for driving on non-grade roads and oilfield field conditions.

[0040] See attached document Figure 1 and 2 The semi-trailer 1 is equipped with, from front to back, a power station 2, a generator 9, a control room 3, a tubing roller 5, a hose roller 6, an injection head assembly 7, a coiled tubing derrick assembly 4, and a blowout preventer 8, the latter located on the side of the fixed derrick 401. In transport mode, the upper derrick 412 is placed horizontally above the generator 9, control room 3, coiled tubing derrick assembly 4, tubing roller 5, hose roller 6, and blowout preventer 8. A maintenance step 10 is provided on the side of the power station 2 of the semi-trailer 1, and a tool table 11 is provided at the rear of the semi-trailer 1.

[0041] See attached document Figure 3 and 4 The power station, serving as the power source for the equipment, includes a skid frame 201, a water tank radiator 202, a battery box 203, an engine 204, a transfer case 205, a hydraulic pump 206, a fuel tank 207, a hydraulic oil tank 208, an air filter 209, a hydraulic oil radiator 210, an accumulator 211, a muffler 212, and an air cylinder. The entire skid is bolted to the front end of the semi-trailer 1. The engine 204, the transfer case 205, and the hydraulic pump 206 are connected in series. The two sides of the transfer case 205 are bolted to two symmetrically arranged brackets, which are welded to the skid frame 201.

[0042] The control room 3 consists of a main control room body, a hydraulic system, and an electrical control system. It is located behind the power station 2. All operating components of the control system 3 are arranged on the control panel for centralized operation and observation. The control panel integrates all operating elements, display instruments, and indicator lights, and is mounted on the operating console. The main body has a box-like structure, with a beveled surface formed by a notch at the upper outer corner serving as the component control panel, covered by a metal protective cover for storage and protection of internal components during transportation. The operating console is positioned so that the operator can visually observe the wellhead location and simultaneously monitor the instrument display data. The hydraulic system and electrical control system are connected in series throughout the entire system.

[0043] See attached document Figure 6-10 The coiled tubing derrick assembly 4 and the injection head assembly 7 are located at the rear of the semi-trailer. The coiled tubing derrick assembly 4 includes a fixed derrick 401, a lifting mechanism 402, a lifting platform 403, a tilting platform 404, an auxiliary winch 405, a support assembly 406, a cable-stayed assembly 407, a main winch 408, a lifting cylinder 409, a tilting cylinder 410, a translation cylinder 411, an upper derrick 412, derrick pulleys 413, a platform pulley 414, and a platform pulley 415. The fixed derrick 401 consists of two side frames, which are symmetrically welded to the semi-trailer 1. The bottom of the two side frames of the upper derrick 412 are hinged to the two side frames of the fixed derrick 401, forming a portal frame structure. The two lifting cylinders 409 are located on the front side of the portal frame structure. The cylinder bodies of the two lifting cylinders 409 are fixed on the semi-trailer 1. The levers of the two lifting cylinders 409 are respectively connected to the frame of the upper derrick 412. The upper derrick 412 is lifted and lowered by the extension and retraction of the lifting cylinders 409.

[0044] Each of the lifting cylinders 409 has a reinforcing rod hinged to its base, and the top of the reinforcing rod is hinged to the fixed derrick 401 to increase the connection strength.

[0045] The portal frame structure has slide rails and a lifting mechanism 402 that matches the slide rails on both sides. The lifting mechanism 402 is slidably connected to the lifting platform 403. The lifting platform 403 has a main winch 408 in the middle. The main winch 408 is wound with a steel wire rope. The end of the steel wire rope passes around the uppermost pulley 413 of the upper derrick 412 and then returns to the lifting platform and connects with it. The lifting platform 403 is raised and lowered by the steel wire rope of the main winch 408.

[0046] like Figure 10 As shown, in order to maintain the stability of the lifting platform 403 during the lifting process, preferably, there are two derrick pulleys 413, which are symmetrically arranged on the upper crossbeam of the upper derrick 412. The upper end face of the lifting platform 403 is provided with platform pulley one 414 and platform pulley two 415 symmetrically arranged on the left and right. The main winch 408 is wound with a steel wire rope. The end of the steel wire rope passes around the derrick pulley 413 on the same side and then returns to the lifting platform. It then passes around platform pulley one 414 and platform pulley two 415 in sequence and returns to the derrick pulley 413 on the other side before returning to the lifting platform and being fixedly connected to it.

[0047] In this embodiment, the lifting mechanism 402 comprises a slider 40201 and a support frame 40202 connected to the slider. The slider 40201 is slidably disposed on the slide rails on both sides of the portal frame structure, and can be equipped with a fall protection mechanism commonly used in the art. The side of the support frame 40202 is connected to the slider 40201, and the bottom of the support frame 40202 is provided with a slide rail. The bottom of the lifting platform 403 is slidably disposed on the slide rail at the bottom of the support frame 40202.

[0048] Motors 40301 are provided on both sides of the lifting platform 403. Nuts are provided on the support frame 40202 of the lifting mechanism 402. The motors 40301 are driven to one end of the lead screw 40302 on the same side. The other end of the lead screw 40302 is threaded to the nut on the same side. The motors 40301 drive the lead screw 40302 to rotate, thereby driving the lifting platform 403 to move back and forth.

[0049] The lifting platform 403 has a rotating shaft and its bearing seat at its rear. The rotating shaft is mounted on the bearing seat, and the tilting platform 404 is rotatably connected to the rotating shaft. The lifting platform 403 is equipped with a tilting cylinder 410, which is located in front of the tilting platform 404. The lever of the tilting cylinder 410 is connected to the tilting platform 404. The extension and retraction of the tilting cylinder 410 pulls the tilting platform 404 to rotate back and forth along the rotating shaft, thus achieving the vertical position of the injection head assembly 7. The tilting platform 404 has a rectangular frame structure. The lifting platform 403 is equipped with a translation cylinder 411, whose lever is connected to the tilting platform 404. The extension and retraction of the translation cylinder 411 causes the tilting platform 404 to slide left and right along the rotating shaft in the vehicle width direction, thus achieving the left and right position adjustment of the injection head assembly 7. An injection head base is provided inside the tilting platform 404, and the injection head of the injection head assembly 7 is fixed to the injection head base 701 by a pin.

[0050] The main winch 408 pulls the lifting platform 403 up and down via a wire rope. The motor 40301 drives the lead screw 40302 to rotate, thereby moving the lifting platform 403 back and forth. The extension and retraction of the tilting cylinder 410 pulls the tilting platform 404 to rotate along the rotation axis. The extension and retraction of the translation cylinder 411 causes the tilting platform 404 to slide left and right along the width of the vehicle. The upper derrick 412 is lifted and lowered by the extension and retraction of the lifting cylinder 409. The movement of the lifting platform 403 and the tilting platform 404 drives the injection head assembly 7 to move up, down, back and forth, and left and right along the portal frame structure, making it easier for the injection head assembly 7 and components such as the blowout preventer 8 to be aligned with the wellhead.

[0051] The top two sides of the upper derrick 412 are respectively connected to one end of two cable-stayed assemblies 407. The two cable-stayed assemblies 407 are respectively connected to the corresponding support assemblies 406. The support assemblies 406 are fixed on the semi-trailer 1 to maintain the stability of the portal frame structure.

[0052] The rear side of the lifting platform 403 is equipped with an auxiliary winch 405 for hoisting auxiliary equipment.

[0053] See attached document Figure 5 The oil pipe drum 5 includes a drum body 501, a drum base 502, a drum drive assembly 503, a pipe laying system 504, a guiding and lubrication system 505, a counting system 506, and a boom assembly 507. It is a device known in the art.

[0054] The hose reel 6 includes an injection head control hose reel, a blowout preventer (BOP) control hose reel, a derrick platform hose reel, and an injection head power hose reel. The injection head control hose reel and the BOP control hose reel are used for winding and unwinding the injection head control lines and the BOP control lines; the derrick platform hose reel and the injection head power hose reel are used for winding and unwinding the coiled tubing derrick control lines and the injection head power lines.

[0055] The injection head assembly 7 includes: an injection head, a guide gooseneck, and a front bracket; the injection head assembly 7 is integrally disposed at the rear end of the semi-trailer, and the guide gooseneck is installed at the top center of the injection head; the injection head base is installed on the tipping platform and fixed by four pins; the front bracket is used to support the injection head.

[0056] Before the operation, preparations need to be made. The work vehicle is parked in front of the wellhead. The semi-trailer hydraulic outriggers are used to fix the vehicle to ensure stability. The upper derrick 412 is slowly raised to a vertical position by lifting cylinder 409. The position of injection head assembly 7 is adjusted to be connected with blowout preventer 8 by tilting cylinder 410 and translating cylinder 411. Then, the continuous tubing is led out from tubing roller 5 and lowered into the well through injection head.

[0057] After the operation is completed, the drive tilting cylinder 410 is retracted, the injection head assembly 7 is tilted down, the drive lifting cylinder 409 is retracted, and the upper derrick 412 is lowered to the transport position.

Claims

1. A derrick-type coiled tubing workover vehicle, comprising a coiled tubing derrick assembly (4) and an injection head assembly (7) disposed at the rear of a semi-trailer (1), characterized in that: The coiled tubing derrick assembly (4) includes a fixed derrick (401), a lifting mechanism (402), a lifting platform (403), a tilting platform (404), a main winch (408), a lifting cylinder (409), a tilting cylinder (410), a translation cylinder (411), an upper derrick (412), and derrick pulleys (413). The fixed derrick (401) is welded to the semi-trailer (1), and the bottom of the upper derrick (412) is hinged to the fixed derrick (401), forming a portal frame structure. The two lifting cylinders (409) are located on the front side of the portal frame structure. The cylinder bodies of the two lifting cylinders (409) are fixed on the semi-trailer (1). The levers of the two lifting cylinders (409) are connected to the frame of the upper derrick (412) respectively. The upper derrick (412) is lifted and lowered by the extension and retraction of the lifting cylinders (409). The portal frame structure has slide rails and a lifting mechanism (402) matching the slide rails on both sides. The lifting mechanism (402) is slidably connected to the lifting platform (403). The lifting platform (403) is equipped with a main winch (408). A steel wire rope is wound on the main winch (408). The end of the steel wire rope passes around the uppermost derrick pulley (413) of the upper derrick (412) and then returns to the lifting platform and connects with it. The lifting platform (403) is pulled up and down by the steel wire rope of the main winch (408). The lifting platform (403) is equipped with motors (40301) on both sides. Nuts are provided on the lifting mechanisms (402) on both sides of the portal frame structure. The motors (40301) are driven to one end of the lead screw (40302) on the same side. The other end of the lead screw (40302) is threaded to the nut on the same side. The motors (40301) drive the lead screw (40302) to rotate, thereby driving the lifting platform (403) to move back and forth. The rear of the lifting platform (403) is provided with a rotating shaft and its bearing seat. The tilting platform (404) is rotatably connected to the rotating shaft. The lifting platform (403) is provided with a tilting cylinder (410). The lever of the tilting cylinder (410) is connected to the tilting platform (404). The extension and retraction of the tilting cylinder (410) pulls the tilting platform (404) to rotate back and forth along the rotating shaft. The tilting platform (404) is a rectangular frame structure. The lifting platform (403) is provided with a translation cylinder (411). The lever of the translation cylinder (411) is connected to the tilting platform (404). The extension and retraction of the translation cylinder (411) drives the tilting platform (404) to slide left and right along the rotating shaft in the vehicle width direction. The tilting platform (404) is provided with an injection head base. The injection head of the injection head assembly (7) is fixed to the injection head base (701) by a pin. The movement of the lifting platform and the tilting platform drives the injection head assembly (7) to move up and down, back and forth and left and right along the portal frame structure.

2. The derrick-type coiled tubing work vehicle according to claim 1, characterized in that: The top two sides of the upper derrick (412) are respectively connected to one end of two cable-stayed assemblies (407), and the two cable-stayed assemblies (407) are respectively connected to the corresponding support assemblies (406), and the support assemblies (406) are fixed on the semi-trailer (1).

3. The derrick-type coiled tubing work vehicle according to claim 2, characterized in that: The semi-trailer (1) is also equipped with a power station (2), generator (9), control room (3), tubing roller (5), hose roller (6) and blowout preventer (8) arranged from front to back. The blowout preventer (8) is located on the side of the fixed derrick (401). In the transport state, the upper derrick (412) is placed horizontally on top of the generator (9), control room (3), coiled tubing derrick assembly (4), tubing roller (5), hose roller (6) and blowout preventer (8).

4. A derrick-type coiled tubing work vehicle according to claim 2 or 3, characterized in that: An auxiliary winch (405) is provided on the rear side of the lifting platform (403).

5. A derrick-type coiled tubing workover rig according to claim 2 or 3, characterized in that: There are two derrick pulleys (413), which are symmetrically arranged on the upper crossbeam of the upper derrick (412). The upper end face of the lifting platform (403) is provided with platform pulley one (414) and platform pulley two (415) symmetrically arranged on the left and right. The main winch (408) is wound with a wire rope. The end of the wire rope passes around the derrick pulley (413) on the same side and then returns to the lifting platform. It then passes around platform pulley one (414) and platform pulley two (415) in sequence and returns to the derrick pulley (413) on the other side and then returns to the lifting platform and is fixedly connected to it.

6. A derrick-type coiled tubing workover rig according to claim 2 or 3, characterized in that: The lifting mechanism (402) consists of a slider (40201) and a support frame (40202) connected to the slider. The slider (40201) is slidably mounted on the slide rails on both sides of the portal frame structure, and the lifting platform (403) is slidably mounted on the support frame (40202).

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