Electrically-driven self-propelled petroleum drilling machine and workover rig

Abstract

The electrically-driven self-propelled petroleum drilling machine and workover rig comprises a foreground base girder, a background base girder is fixedly connected to one end of the foreground base girder, a foreground base upper layer is installed on the foreground base girder, and a rotary disc driver and a derrick are installed on the foreground base upper layer. The upper end of the background base girder is connected with a winch, a generator and an electric control room, the lower end of the foreground base girder is connected with a front support through a first hydraulic oil cylinder, the lower end of the background base girder is connected with a middle support and a rear support through a second hydraulic oil cylinder, and a wheel type axle is arranged at the lower end of the background base girder. The electrically-driven self-propelled petroleum drilling machine and the workover rig are used, so that the problems of high cost, long waiting time and large mounting and connecting workload due to the fact that one or more tractors need to be rented before each time of transportation in the existing technology of pulling, hanging and transporting the petroleum drilling machine and the workover rig by the tractors are solved, and the common use of a generator under two working conditions can be realized; and the equipment acquisition cost is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of oil and gas drilling equipment, and relates to an electric-driven self-propelled oil drilling rig and a well repair rig. Background Art

[0002] Oil drilling rigs and workover rigs are used for oil drilling and workover. They are mainly composed of overhead cranes, traveling blocks, top drives, derricks, bases, turntables, winches, power units, etc. In the Middle East, North Africa and other regions with flat terrain and large oil reserves, the workload of oil drilling and workover is very large. In order to make full use of oil drilling rigs and workover rigs for drilling and workover, local drilling companies require that the relocation time of oil drilling rigs and workover rigs from one well site to another be shortened as much as possible. At present, in order to speed up the relocation of drilling rigs, the main method of transporting oil drilling rigs and workover rigs is towing with tractors.

[0003] However, the above method has the following disadvantages: one or more tractors must be rented before each transport of the oil drilling rig and the workover rig, which is expensive, requires a long waiting time, and requires a large amount of installation and connection work, making it inconvenient to transport the oil drilling rig and the workover rig by towing. Summary of the invention

[0004] The purpose of the present invention is to provide an electrically driven self-propelled oil drilling rig and workover rig, which solves the problem that the oil drilling rig and workover rig in the prior art are inconvenient to be towed and transported.

[0005] The technical solution adopted by the present invention is that the electrically driven self-propelled oil drilling rig and well repairing rig comprises a front base beam, one end of the front base beam is fixedly connected to a rear base beam, a front base upper layer is installed on the front base beam, a turntable drive and a derrick are respectively installed on the front base upper layer, a winch, a generator, and an electric control room are respectively connected to the upper end of the rear base beam, and a cab is provided at one end of the rear base beam away from the front base beam;

[0006] The lower end of the front base beam is connected to the front support through the first hydraulic cylinder, the lower end of the rear base beam is connected to the middle support and the rear support through the second hydraulic cylinder, and the lower end of the rear base beam is provided with a wheeled axle;

[0007] The wheeled axle and the electric control room are electrically connected to the generator respectively.

[0008] The present invention is also characterized in that: the derrick is sequentially equipped with a traveling block, a top drive, and a crown block from bottom to top, and the derrick is connected to the upper layer of the front base through a third hydraulic cylinder;

[0009] The front base beam and the front support, as well as the back base beam and the middle support and rear support are connected and fixed with a sleeve-guided telescopic structure;

[0010] The wheeled axle adopts a one-line two-axle or one-line single-axle structure, and the number of axis lines of the wheeled axle is not less than 2;

[0011] The wheeled axle adopts any combination of one or more of the three types of axles: electric drive axle, steering axle and axle that can be steered and electrically driven;

[0012] The wheeled axle adopts any combination of one or more of the three types of axles: hydraulic motor driven axle, steering axle and axle that can be steered and driven by a hydraulic motor;

[0013] The derrick is a front-opening telescopic structure.

[0014] The beneficial effects of the present invention are:

[0015] 1. The electric-driven self-propelled oil drilling rig and workover rig can move by itself through the middle bearing layer of its own electric drive device, so that the oil drilling rig and workover rig installed above the middle bearing layer can be moved, which solves the problem of the existing tractor-driven towing and moving oil drilling rig and workover rig technology that requires one or more tractors to be rented before each move, which is expensive, has a long waiting time, and has a large workload for installation and connection;

[0016] 2. The generator installed in the background of the device of the present invention provides power for the drilling rig and the workover rig when the device of the present invention is working normally, and provides power for the self-propelled rig under the self-propelled working condition, thereby realizing the common use of the generator under the two working conditions and effectively reducing the equipment purchase cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a side elevation schematic diagram of the drilling and repairing working condition of the device of the present invention;

[0018] Figure 2 It is a schematic diagram of the front elevation of the drilling and repairing working condition of the device of the present invention;

[0019] Figure 3 It is a schematic diagram of the structure of a 4-axis axle in a self-propelled working condition of the device of the present invention;

[0020] Figure 4 It is a schematic diagram of the structure of a three-axis axle in a self-propelled working condition of the device of the present invention;

[0021] Figure 5 It is a schematic diagram of the 2-axis axle structure of the self-propelled working condition of the device of the present invention;

[0022] Figure 6 It is a schematic diagram of the structure of a 5-axis axle in a self-propelled working condition of the device of the present invention;

[0023] Figure 7 It is a schematic diagram of the structure of a 6-axis axle in a self-propelled working condition of the device of the present invention;

[0024] Figure 8It is a schematic diagram of another 5-axis axle structure of the self-propelled working condition of the device of the present invention.

[0025] In the figure, 1. front base beam, 2. back base beam, 3. front base upper layer, 4. front support, 5. middle support, 6. back support, 7. generator, 8. electric control room, 9. wheeled axle, 10. cab, 11. overhead crane, 12. traveling block, 13. top drive, 14. derrick, 15. turntable drive, 16. winch. DETAILED DESCRIPTION

[0026] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] The electric driven self-propelled oil drilling rig and workover rig of the present invention are as follows: Figure 1 As shown, it includes a front base beam 1, one end of the front base beam 1 is fixedly connected to the rear base beam 2, wherein the front base beam 1 and the rear base beam 2 can be connected in a fixed manner or made into one component, and together serve as the middle bearing layer of the base. In this embodiment, a fixed manner is adopted, and a front base upper layer 3 is installed on the front base beam 1, and a turntable drive 15 and a derrick 14 are respectively installed on the front base upper layer 3. In the present invention, the derrick 14 is a front-opening telescopic structure, which can be retracted according to two working conditions: self-propelled or working. Among them, the derrick 14 is installed with a traveling block 12, a top drive 13, and a crane 11 in sequence from bottom to top, and the derrick 14 is connected to the front base upper layer 3 through a third hydraulic cylinder. Under the self-propelled working condition, the third hydraulic cylinder is used to rotate the retracted derrick 14 as a whole around the rear support leg of the derrick and place it flat on the support frame of the rear base, and then transport it.

[0028] The upper end of the rear base beam 2 is respectively connected to a winch 16, a generator 7, and an electric control room 8. A cab 10 is provided at one end of the rear base beam 2 away from the front base beam 1, and a wheeled axle 9 is provided at the lower end of the rear base beam 2, wherein the wheeled axle 9 and the electric control room 8 are respectively electrically connected to the generator 7. Under self-propelled conditions, the generator 7 generates electricity which can drive the motor on the wheeled axle 9 to rotate and drive the wheels to rotate through the electric control system of the electric control room 8 and the control system of the cab 10. In the cab 10, the device of the present invention can be controlled to move forward, backward and turn.

[0029] The lower end of the front base beam 1 is connected to the front support 4 through the first hydraulic cylinder, and the lower end of the rear base beam 2 is connected to the middle support 5 and the rear support 6 through the second hydraulic cylinder. In this embodiment, the front base beam 1 and the front support 4, and the rear base beam 2 and the middle support 5 and the rear support 6 are connected and fixed respectively by a sleeve-guided telescopic structure. The first hydraulic cylinder and the second hydraulic cylinder can control the lifting and lowering of the front support 4, the middle support 5, and the rear support 6 according to the actual required working conditions, and the sleeve-guided telescopic structure can guide the front support 4, the middle support 5, and the rear support 6 during the extension and retraction process.

[0030] In the present invention, the wheeled axle 9 adopts a one-line two-axle or one-line single-axle structure, the number of axis lines of the wheeled axle 9 is not less than 2, and the wheeled axle 9 adopts any combination of one or more axles of the three types of axles: an electric drive axle, a steering axle, and an axle that is both steerable and electrically driven. The axle drive mode of the electric-driven self-propelled oil drilling rig and well repairing machine of the present invention can also adopt a hydraulic motor driven axle.

[0031] The electrically driven self-propelled oil drilling rig and well repairing rig of the present invention is suitable for electrically driven oil drilling rigs and well repairing rigs of various specifications.

[0032] The installation position and state of the device of the present invention under normal drilling and repairing conditions are specifically described as follows: Figure 1 and Figure 2 As shown, the process of the device of the present invention being converted from a normal drilling and repairing working condition to a self-propelled working condition is specifically described as follows: Under the drilling and repairing working condition, the derrick 14 is installed on the upper layer 3 of the front base in an upright state, and the lifting load and the deadweight load of the equipment are transmitted to the foundation ground of the well site through the top drive 13, the traveling block 12, the drilling wire rope, the overhead crane 11, the derrick 14, the upper layer 3 of the front base, the front base beam 1, the rear base beam 2, the front support 4, the middle support 5 and the rear support 6, and the wheeled vehicle bridge 9 does not bear any load;

[0033] like Figure 3 As shown, under the self-propelled working condition, the derrick 14 is in a flat state, the distance between the front support 4 and the upper surface of the well site foundation is H1, the distance between the middle support 5 and the rear support 6 and the upper surface of the well site foundation is H2, and at this time, the tires of the wheeled axle 9 are all placed on the upper surface of the well site foundation, and the deadweight load of the equipment is transmitted to the well site foundation through the front base beam 1, the rear base beam 2 and the wheeled axle 9.

[0034] like Figure 1 , Figure 2 and Figure 3 As shown, the process of converting the device of the present invention from the normal drilling and well repairing working condition to the self-propelled working condition is specifically described as follows: when the derrick 14 is in an upright state, the telescopic section of the derrick 14 is retracted, and then the third hydraulic cylinder is used to rotate the retracted derrick 14 as a whole around the rear support leg of the derrick and place it flat on the support frame of the rear base, and then the first hydraulic cylinder and the second hydraulic cylinder are operated to shorten the distance between the front support 4, the middle support 5, and the rear support 6 and the front base beam 1 and the rear base beam 2 until the wheeled vehicle axle 9 is supported on the upper surface of the well site foundation, and then the first hydraulic cylinder and the second hydraulic cylinder are continued to be operated to make the front support 4, the middle support 5, and the rear support 6 leave the foundation support surface to a predetermined position. At this time, it has been converted to the self-propelled working condition, and the driver can operate in the cab 10 to make the device of the present invention move to the wellhead position of the next well site by self-propelled.

[0035] After arriving at the designated well site and aligning with the wellhead, the process of switching the device of the present invention from the self-propelled working condition to the normal drilling and repairing working condition is the reverse process of switching from the normal drilling and repairing working condition to the self-propelled working condition, the operation method is similar, and the operation process is opposite.

[0036] Example 1

[0037] Electric drive self-propelled oil drilling rig and workover rig, its structure is as follows Figure 3 As shown, the wheeled axle 9 is a 4-axis structure, and its axle configuration has the following situations: first, the 2-axis axles between the middle support 5 and the cab 10 are steering axles, and the 2-axis axles between the front support 4 and the middle support 5 are driving axles; second, the 2-axis axles between the middle support 5 and the cab 10 are both steerable and electrically driven axles, and the 2-axis axles between the front support 4 and the middle support 5 are electrically driven axles; third, all 4-axis axles are both steerable and electrically driven axles.

[0038] Example 2

[0039] Electric drive self-propelled oil drilling rig and workover rig, its structure is as follows Figure 4 As shown, the wheeled axle 9 is a three-axis structure, and its axle configuration has the following situations: first, one axis axle between the middle support 5 and the cab 10 is a steering axle, and two axis axles between the front support 4 and the middle support 5 are driving axles; second, one axis axle between the middle support 5 and the cab 10 is a steerable and electrically driven axle, and two axis axles between the front support 4 and the middle support 5 are electrically driven axles; third, all three axis axles are steerable and electrically driven axles.

[0040] Example 3

[0041] Electric drive self-propelled oil drilling rig and workover rig, its structure is as follows Figure 5 As shown, the wheeled axle 9 is a two-axis structure, and its axle configuration has the following situations: first, the axle between the middle support 5 and the cab 10 is a steering axle, and the axle between the front support 4 and the middle support 5 is a driving axle; second, the axle between the middle support 5 and the cab 10 is a steering axle and an electrically driven axle, and the axle between the front support 4 and the middle support 5 is an electrically driven axle or a hydraulic motor driven axle; third, both axles are steering axles and electrically driven axles.

[0042] Example 4

[0043] Electric drive self-propelled oil drilling rig and workover rig, its structure is as follows Figure 6As shown, the wheeled axle 9 is a 5-axis structure, and its axle configuration has the following situations: first, the 3-axis axles between the middle support 5 and the cab 10 are steering axles, and the 2-axis axles between the front support 4 and the middle support 5 are driving axles; second, the 3-axis axles between the middle support 5 and the cab 10 are both steerable and electrically driven axles, and the 2-axis axles between the front support 4 and the middle support 5 are electrically driven axles or hydraulic motor driven axles; third, all 5-axis axles are both steerable and electrically driven axles.

[0044] Example 5

[0045] Electric drive self-propelled oil drilling rig and workover rig, its structure is as follows Figure 7 As shown, the wheeled axle 9 is a 6-axis structure, and its axle configuration has the following situations: first, the 3-axis axles between the middle support 5 and the cab 10 are steering axles, and the 3-axis axles between the front support 4 and the middle support 5 are driving axles; second, the 3-axis axles between the middle support 5 and the cab 10 are both steerable and electrically driven axles, and the 3-axis axles between the front support 4 and the middle support 5 are electrically driven axles or hydraulic motor driven axles; third, all 6-axis axles are both steerable and electrically driven axles.

[0046] Example 6

[0047] Electric drive self-propelled oil drilling rig and workover rig, its structure is as follows Figure 8 As shown, the wheeled axle 9 is a 5-axis structure, and its axle configuration has the following situations: first, the 2-axis axles between the middle support 5 and the cab 10 are steering axles, and the 3-axis axles between the front support 4 and the middle support 5 are driving axles; second, the 2-axis axles between the middle support 5 and the cab 10 are both steerable and electrically driven axles, and the 3-axis axles between the front support 4 and the middle support 5 are electrically driven axles or hydraulic motor driven axles; third, all 5-axis axles are both steerable and electrically driven axles.

[0048] The generator installed in the background of the device of the present invention provides power for the drilling rig and the well repairing rig when the device of the present invention is working normally, and provides power for the self-propelled rig under the self-propelled working condition, thereby realizing the common use of the generator under the two working conditions and effectively reducing the equipment purchase cost.

Claims

1. Electric-driven self-propelled oil drilling rig and workover rig, characterized in that: It comprises a front base beam (1), one end of which is fixedly connected to a rear base beam (2), a front base upper layer (3) is installed on the front base beam (1), a turntable drive (15) and a derrick (14) are respectively installed on the front base upper layer (3), a winch (16), a generator (7) and an electric control room (8) are respectively connected to the upper end of the rear base beam (2), and a cab (10) is provided at one end of the rear base beam (2) away from the front base beam (1); The lower end of the front base beam (1) is connected to a front support (4) via a first hydraulic cylinder, the lower end of the rear base beam (2) is connected to a middle support (5) and a rear support (6) via a second hydraulic cylinder, and the lower end of the rear base beam (2) is provided with a wheeled axle (9); The wheeled axle (9) and the electric control room (8) are electrically connected to the generator (7) respectively.

2. The electrically driven self-propelled oil drilling rig and workover rig according to claim 1, characterized in that: The derrick (14) is provided with a traveling block (12), a top drive (13), and an overhead crane (11) in sequence from bottom to top, and the derrick (14) is connected to the upper layer (3) of the front base via a third hydraulic cylinder.

3. The electrically driven self-propelled oil drilling rig and workover rig according to claim 1, characterized in that: The front base beam (1) and the front support (4), as well as the back base beam (2) and the middle support (5) and the rear support (6) are connected and fixed by a sleeve-guided telescopic structure.

4. The electrically driven self-propelled oil drilling rig and workover rig according to claim 1, characterized in that: The wheeled vehicle bridge (9) adopts a one-line two-axle structure or a one-line single-axle structure, and the number of axis lines of the wheeled vehicle bridge (9) is not less than 2.

5. The electrically driven self-propelled oil drilling rig and workover rig according to claim 4, characterized in that: The wheeled axle (9) adopts any combination of one or more axles among three types of axles: an electric drive axle, a steering axle, and an axle that is both steerable and electrically driveable.

6. The electrically driven self-propelled oil drilling rig and workover rig according to claim 4, characterized in that: The wheeled axle (9) adopts any combination of one or more axles among the three types of axles: a hydraulic motor driven axle, a steering axle, and an axle that is both steerable and hydraulic motor driven.

7. The electrically driven self-propelled oil drilling rig and workover rig according to claim 1, characterized in that: The derrick (14) is a front-opening telescopic structure.

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