Automatic workover rig capable of achieving single operation

By designing a single-section automated workover rig, which uses a robotic arm and a tilting frame to adjust the drill string's posture, the problem of complex layout of oil drilling equipment was solved, achieving fully automated operation and equipment simplification, and reducing the number of equipment and personnel requirements.

CN223608488UActive Publication Date: 2025-11-28LANZHOU LS PETROLEUM EQUIP ENG CO LTD
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Patent Information

Application Number
CN202520218442.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-12
Publication Date
2025-11-28
Estimated Expiration
2035-02-12

AI Technical Summary

Technical Problem

Existing oil drilling rigs have complex equipment layouts during drill pipe discharge, require various supporting equipment, and have inconvenient drill bit attitude adjustment, making it difficult to achieve fully automated operation.

Method used

Design a single-section automated workover rig, comprising components such as a lower moving seat, an upper moving seat, a derrick, a main hydraulic cylinder, a lifting hydraulic cylinder, a power head, and a gripper. The drill string attitude is adjusted by a robotic arm and a tilting frame, and the rig is adapted to multi-well operations with the help of guide rails, simplifying the equipment layout.

Benefits of technology

It achieves fully automated operation from well site to wellhead, direct alignment of drill string attitude adjustment, reduces the number of equipment, makes drilling rigs lighter and easier to install, and simplifies personnel configuration.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of petroleum drilling operation auxiliary equipment, and discloses a single operation automatic workover rig which comprises a lower moving seat, an upper moving seat, a derrick support and a derrick are sequentially arranged on the lower moving seat, a main hydraulic cylinder and a lifting hydraulic cylinder are arranged on the derrick, and the main hydraulic cylinder is connected with a power head through a main pulley block and a steel wire rope. The derrick is further provided with an upper shackle device, and one side of the derrick is matched with a rod grabbing machine. The screwing-on and screwing-off device is connected with a drilling tool; the top of the drilling tool is connected with a power head; supporting legs are fixedly connected below the derrick through pins; the device can adjust the posture of the drilling tool, can be accurately aligned with a wellhead, and is convenient to install.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to the petroleum drilling operation auxiliary equipment technical field relates to a workover rig, in particular to a single root operation automation workover rig. BACKGROUND

[0002] At present, the degree of automation of the petroleum drilling machine is higher and higher, but the whole still adopts the traditional two-layer platform to discharge the drill rod, needs to connect and unload the single root operation, for this needs to configure the matched pipe discharging manipulator, mouse hole and other equipment, the drilling platform and the derrick equipment are too much, and the layout is complex. CONTENT OF THE UTILITY MODEL

[0003] The utility model solves the technical problem in the prior art, and provides a single root operation automation workover rig which can adjust the posture of a drilling tool, accurately align the well mouth and be conveniently installed.

[0004] The utility model solves the technical problem by the following technical scheme, a single root operation automation workover rig, including lower mobile seat, the upper mobile seat, derrick support and derrick are sequentially arranged on lower mobile seat, and the main liquid cylinder and the lifting liquid cylinder are arranged on the derrick, and the main liquid cylinder is connected with the power head through the main pulley group and the steel wire rope;The upper unloading buckle device is further arranged on the derrick, and the grab lever machine is matched on one side of the derrick;The drilling tool is connected with the power head at the top of the drilling tool.

[0005] Preferably, the cylinder body end of the main liquid cylinder is arranged at the bottom of the derrick, and the piston rod end of the main liquid cylinder is connected with the main pulley group.

[0006] Preferably, the upper mobile seat and the lower mobile seat are matched with guide rails and can slide on the guide rails respectively, so that the automation workover rig can adapt to multi-well position operation.

[0007] Preferably, the grab lever machine comprises a base, a manipulator connecting mechanism and a manipulator are arranged on the base, a turnover frame is hinged on one side of the base, and the turnover frame is further hinged with a turnover liquid cylinder;The manipulator connecting mechanism is a connecting rod structure, and the manipulator connecting mechanism connects the turnover frame and the manipulator.

[0008] Compared with the prior art, the utility model has the beneficial effects that: the utility model can realize the whole process automation operation from the well site to the well mouth, the drilling tool is directly aligned with the well mouth through the turnover of the grab lever machine and the adjustment of details from the horizontal state of the well site, without the storage process of the pipe column, and the drilling tool is directly lowered and raised;The drilling machine is light, convenient to install and simple to configure. BRIEF DESCRIPTION OF DRAWINGS

[0009] Figure 1 It is the structural schematic diagram of the utility model;

[0010] Figure 2This is the left view of the present invention;

[0011] Figure 3 This is a schematic diagram of the present invention in its laid-down state;

[0012] Figure 4 This is a top view of the present invention;

[0013] Figure 5 This is a schematic diagram of the result of the grabber machine.

[0014] The components include: lower moving seat 1, upper moving seat 2, derrick support 3, derrick 4, main hydraulic cylinder 5, lifting hydraulic cylinder 6, power head 7, wire rope 8, main pulley block 9, upper shackle device 10, grab bar machine 11, driller's cabin 41, outrigger 42, pin 43, base 111, tilting frame 112, manipulator 113, manipulator connecting mechanism 114, and tilting hydraulic cylinder 115. Detailed Implementation

[0015] A single-section automated well workover rig, such as Figures 1-5 As shown, the system includes a lower movable seat 1, on which an upper movable seat 2, a derrick support 3, and a derrick 4 are sequentially mounted. The derrick 4 is equipped with a main hydraulic cylinder 5 and a lifting hydraulic cylinder 6. The main hydraulic cylinder 5 is connected to a power head 7 via a main pulley block 9 and a wire rope 8. The derrick 4 is also equipped with an upper unhooking device 10, and a grab bar machine 11 is fitted on one side of the derrick 4. The upper unhooking device 10 is connected to a drill bit, and the top of the drill bit is connected to the power head 7. A support leg 42 is fixedly connected to the bottom of the derrick 4 via a pin 43.

[0016] The cylinder body end of the main hydraulic cylinder 5 is located at the bottom of the derrick 4, and the piston rod end of the main hydraulic cylinder 5 is connected to the main pulley block 9; both the upper moving seat 2 and the lower moving seat 1 are equipped with guide rails and can slide on the guide rails respectively, so that the automated workover rig can adapt to multi-well operations; the gripper 11 includes a base 111, on which a manipulator connection mechanism 114 and a manipulator 113 are provided. A tilting frame 112 is hinged to one side of the base 111, and the tilting frame 112 is also hinged to the tilting hydraulic cylinder 115; the manipulator connection mechanism 114 is a linkage structure, and the manipulator connection mechanism 114 connects the tilting frame 112 and the manipulator 113; the two hinge points of the tilting frame 112 are hinged to the base 111 and the tilting hydraulic cylinder 115, and the tilting hydraulic cylinder 115 and the base 111 form a triangle. The extension and retraction of the tilting hydraulic cylinder 115 drives the entire tilting frame to switch between horizontal and vertical states.

[0017] The grab rod machine 11 is horizontally turned to be vertical, the drilling tool is converted from horizontal posture to vertical posture, the drilling tool is aligned with the wellhead by adjusting the mechanical hand connecting mechanism 114, the upper and lower buckle device 10 is arranged near the wellhead, the drilling tool is connected, the top of the drilling tool is connected with the power head 7; the main liquid cylinder 5 on the derrick 4 is telescopic, drives the power head 7 to ascend or descend, and completes drilling, tripping and other drilling operations; the main liquid cylinder 5 is installed on the derrick 4 at the cylinder body end, the piston rod end is connected with the main pulley set 9, the liquid cylinder is extended or retracted, drives the main pulley set 9 to ascend or descend, the derrick is lifted through the lifting liquid cylinder 6, and the main liquid cylinder 5 and the main pulley set 9 can be undetachable before and after lifting.

[0018] In addition to the foregoing devices of the embodiment, the drilling floor equipment also needs the driller house 41, the comprehensive hydraulic station, the pipe manifold and other main equipment, and the drilling floor layout is simple; the single string operation automatic workover rig of the embodiment can realize full-process automatic operation from the well site to the wellhead, the drilling tool is directly aligned with the wellhead from the horizontal state of the well site through the grab rod machine turning and detailed adjustment, does not need the storage process of the pipe string, and directly drills. The drilling machine is light, convenient to install and simple to configure personnel, and can cover multiple well sites for drilling operation according to the size configuration of the upper and lower moving seats.

Claims

1. A single-trip automated workover rig characterized by: The lower moving seat is sequentially provided with an upper moving seat, a derrick support and a derrick, the derrick is provided with a main hydraulic cylinder and a lifting hydraulic cylinder, the main hydraulic cylinder is connected with a power head through a main pulley set and a steel wire rope; the derrick is further provided with an upper buckle device, and a grab lever machine is matched on one side of the derrick; the drill tool is connected with the power head at the top; the derrick is fixedly connected with a support leg through a pin at the bottom.

2. The single-rig automated workover machine of claim 1, wherein: The cylinder body end of the main hydraulic cylinder is arranged at the bottom of the derrick, and the piston rod end of the main hydraulic cylinder is connected with the main pulley set.

3. The single-rig automated workover machine of claim 2, wherein: The upper moving seat and the lower moving seat are both matched with guide rails.

4. The single-trip automated workover rig of claim 3, wherein: The grab lever machine comprises a base, a mechanical hand connecting mechanism and a mechanical hand arranged on the base, a turnover frame is hinged on one side of the base, and the turnover frame is further hinged with a turnover hydraulic cylinder; the mechanical hand connecting mechanism is a connecting rod structure, and the mechanical hand connecting mechanism connects the turnover frame and the mechanical hand.