CN204386465U - A kind of oil field pull-type electric workover rig - Google Patents

Abstract

The utility model relates to the technical field of oilfield equipment, in particular to a trailer-type electric workover machine for oilfields. The utility model has the advantages of simple structure, convenient installation and operation, advanced control mode, and good vehicle transfer performance. In order to achieve the above object, the technical solution adopted by the utility model includes a derrick assembly, a traveling block, a front support, a rear support, a semi-trailer and a base, and the described derrick assembly and a traveling block are supported on the semi-trailer through the front support and the rear support Above, the gooseneck of the semi-trailer is provided with a hydraulic station, and the top of the semi-trailer is provided with a control system, an air compressor, a winch motor, a gear reduction box and a winch in turn, and one side of the rear support is provided There is a driller's control room, and the base is provided with a driller's control room, a turntable and a turntable motor.

Description

A trailer-type electric workover rig for oilfield

technical field

The utility model relates to the technical field of oilfield equipment, in particular to a trailer-type electric workover machine for oilfields.

Background technique

With the aging of oil wells, the international workover market and the domestic workover market continue to be optimistic, and the demand for workover equipment by workover contractors continues to increase. At the same time, the performance requirements for workover machines to adapt to the environment are also getting higher and higher. China and the country are actively promoting the use of clean energy, energy conservation and emission reduction. The power of the current workover rigs is mainly driven by diesel engines. When running in, it is generally controlled by disengaging the drum clutch and using auxiliary brakes. The position and speed of the hook cannot be accurately controlled during the running in process. With the construction of power grids in oil regions, more and more oilfield workover sites are equipped to use grid power. The existing electric workover rigs all add electric motors to conventional workover rigs, and the structure has not changed fundamentally. The transmission chain of the drawworks and the turntable is long, and the transmission efficiency is low. Therefore, it is necessary to develop a trailer-type electric workover rig to replace the current workover equipment in oilfields and to improve operating efficiency.

Contents of the invention

In order to solve the deficiencies in the above-mentioned background technology, the utility model provides a trailer-type electric workover rig for oil fields, which has simple structure, convenient installation and operation, advanced control mode, and good vehicle transportation performance.

In order to achieve the above purpose, the technical solution adopted by the utility model is: a trailer-type electric workover rig for oil fields, including a derrick assembly, a traveling block, a front support, a rear support, a semi-trailer and a base, and is characterized in that: The above-mentioned derrick assembly and traveling block are supported on the semi-trailer through the front bracket and the rear bracket. The gooseneck of the semi-trailer is provided with a hydraulic station, and the upper top of the semi-trailer is sequentially provided with a control system, an air compressor, Drawworks motor, gear reduction box and winch, one side of the rear bracket is provided with a driller's control room, and the base is provided with a driller's control room, a turntable and a turntable motor.

The control system is a U-shaped structure, which includes a rectifier unit cabinet, an inverter unit cabinet, a brake unit cabinet, a brake resistor box, a water-cooled control cabinet, a PLC control cabinet, an MCC cabinet, and a water-cooled cooling fan. Unit cabinets and water-cooling cooling fans are arranged on both sides of the U-shaped structure. Brake resistor boxes, water-cooling control cabinets, PLC control cabinets and MCC cabinets are placed side by side at the front. Rectifier unit cabinets, inverter unit cabinets, brake unit cabinets, PLC The control cabinet and the MCC cabinet are an integral cabinet.

The winch motor is connected with the winch through a gear reduction box.

The turntable is connected with the turntable motor.

Compared with the prior art, the utility model has the following advantages and effects:

1. The utility model is not only simple in structure, convenient in installation and operation, advanced in control mode, and good in vehicle transportation performance;

2. The utility model adopts the motor to directly drive the roller shaft through the gearbox, which has a simple structure and high reliability, and solves the problems of long transmission chain and low transmission efficiency of conventional electric workover rigs;

3. The utility model adopts a semi-trailer structure, which has good transportability, and adopts a unified trailer, which reduces the walking diesel engine, cab and driving system specially matched with conventional electric workover rigs.

4. The turntable of the utility model is independently driven by a motor, which reduces the transmission mechanism of the conventional workover rig from the drawworks to the turntable, and is easy to install on site;

5. The heat dissipation of the control system of the utility model adopts a combined water-cooling method, and the water-cooling device is installed on the semi-trailer.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the top view of the semi-trailer without the derrick assembly of the utility model;

Reference signs: 1—derrick assembly, 2—front support, 3—hydraulic station, 4—semi-trailer, 5—control system, 6—air compressor, 7—winch motor, 8—winch, 9—travel block, 10—rear bracket, 11—driller’s control room, 12—turntable, 13—base, 14—turntable motor, 15—rectifier unit cabinet, 16—inverter unit cabinet, 17—brake unit cabinet, 18—brake resistor Box, 19—water-cooled control cabinet, 20—PLC control cabinet, 21—MCC cabinet, 22—water cooling cooling fan, 23—gear reduction box.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment the utility model is described in detail:

Referring to Fig. 1 : a trailer-type electric workover rig for oilfields, comprising a derrick assembly 1, a traveling block 9, a front support 2, a rear support 10, a semi-trailer 4 and a base 12, the derrick assembly 1 and traveling block The vehicle 9 is supported on the semi-trailer 4 through the front support 2 and the rear support 10. The hydraulic station 3 is provided on the gooseneck (front end) of the semi-trailer 4, and the control system 5, Air compressor 6, winch motor 7, gear reduction box 23 and winch 8, described base 13 is provided with driller's control room 11, turntable 12 and turntable motor 14.

The control system 5 is a U-shaped structure, which includes a rectifying unit cabinet 15, an inverter unit cabinet 16, a braking unit cabinet 17, a braking resistor box 18, a water-cooled control cabinet 19, a PLC control cabinet 20, an MCC cabinet 21, The water-cooled heat dissipation fan 22, the rectifier unit cabinet 15 and the water-cooled heat dissipation fan 22 are arranged on both sides of the U-shaped structure, the braking resistor box 18, the water-cooled control cabinet 19, the PLC control cabinet 20 and the MCC cabinet 21 are placed side by side at the front end, The rectifier unit cabinet 15, the inverter unit cabinet 16, the brake unit cabinet 17, the PLC control cabinet 20 and the MCC cabinet 21 are designed as a whole cabinet, and the interior is cooled by the water-cooling control cabinet 19 and the water-cooling cooling fan 22.

The winch 8 is connected with a winch motor 7, and the winch motor 7 is provided with a gear reduction box 23, and the winch 8 is directly driven by the winch motor 7 through the gear reduction box 23. the

The turntable 12 is connected with a turntable motor 14, and the turntable 12 is driven by the turntable motor 14.

Hydraulic station 3 is composed of disc brake hydraulic station (providing power for hydraulic disc brakes) and tool hydraulic station (including tongs, lifting tongs, derrick lifting, vehicle outriggers, etc.), hydraulic station 3 and semi-trailer 4 goose The neck forms a whole.

The control scheme of the utility model: the main power is supplied by an external high-voltage power grid or by a diesel generator set. The rectification unit cabinet 15 in the control system 5 converts the external input AC power into DC power, and provides power to the inverter unit cabinet 16 through the connection copper bar between the rectification unit cabinet 15 and the inverter unit cabinet 16 . The inverter unit cabinet 16 is connected to the motor of the winch and the turntable to provide driving power for the winch and the turntable. The braking unit cabinet 17 and the braking resistor box 18 form a dynamic braking circuit. The PLC system and disc brake system form an intelligent disc brake control system. The PLC control cabinet 20 and the driller's control room 11 form a remote operation control system. The PLC control cabinet 20, the driller's control room 11 and the inverter unit cabinet 16 use profinet network communication. The driller performs stepless control on the winch motor 7 through the control system 5 in the driller's control room 11, and the winch motor 7 drives the winch 8 to rotate through the gear reduction box 23, thereby realizing lifting and lowering of the hook. The driller drives the turntable motor 14 through the control system 5 in the driller's control room 11 for stepless control to realize the forward and reverse rotation of the turntable.

The control system of the utility model communicates with the driller's control room through the Profinet network.

All parts involved in the utility model are existing parts.

Claims (4)

1. an oil field pull-type electric workover rig, comprise derrick assembly (1), tourist bus (9), fore-stock (2), after-poppet (10), semitrailer (4) and base (13), it is characterized in that: described derrick assembly (1) and tourist bus (9) are supported on semitrailer (4) by fore-stock (2) and after-poppet (10), the gooseneck of described semitrailer (4) is provided with Hydraulic Station (3), described semitrailer (4) upper top is provided with control system (5) successively, air compressor (6), winch motor (7), gear reduction box (23) and winch (8), the side of described after-poppet (10) is provided with driller control house (11), described base (13) is provided with driller control house (11), rotating disk (12) and rotary tray motor (14).

2. a kind of oil field according to claim 1 pull-type electric workover rig, it is characterized in that: described control system (5) is U-shaped structure, it comprises rectification unit cabinet (15), inversion unit cabinet (16), brake unit cabinet (17), braking resistor box (18), water-cool control cabinet (19), PLC control cabinet (20), MCC cabinet (21), water-cooling fan (22), described rectification unit cabinet (15), water-cooling fan (22) is respectively in U-shaped structure both sides, braking resistor box (18), water-cool control cabinet (19), PLC control cabinet (20) and MCC cabinet (21) are placed on front end side by side, rectification unit cabinet (15), inversion unit cabinet (16), brake unit cabinet (17), PLC control cabinet (20) and MCC cabinet (21) as a whole cabinet.

3. a kind of oil field according to claim 1 and 2 pull-type electric workover rig, is characterized in that: described winch motor (7) is connected with winch (8) by gear reduction box (23).

4. a kind of oil field according to claim 3 pull-type electric workover rig, is characterized in that: described rotating disk (12) is connected with rotary tray motor (14).