Hydraulic deep well drilling rig

Abstract

The invention relates to the technical field of drilling machines, and provides a hydraulic deep well drilling machine which comprises a bearing base and a working device. The working device comprises a power mechanism and a derrick mechanism, the derrick mechanism comprises a derrick body, a power head and a power driving assembly, the power mechanism comprises a supporting frame and a power source module, the first end of the derrick body is rotationally connected with the supporting frame, the power source module is connected with the power driving assembly, and the supporting frame is detachably connected with the bearing base; when the derrick body is located at the working position, the bearing base supports the first end of the derrick body, and when the derrick body is located at the storage position, the derrick body is transversely arranged above the power mechanism. By means of the arrangement, split transportation of the hydraulic deep well drilling rig is achieved, the supporting frame does not need to be detached from the derrick mechanism during transition transportation, a hydraulic system and other power source modules do not need to be detached from the derrick mechanism either, detaching of the hydraulic system is avoided, the detaching workload is reduced, and the detaching efficiency is improved; and pollution to a hydraulic system is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of drilling rigs, and in particular to a hydraulic deep well drilling rig. Background Art

[0002] The main operating occasions of hydraulic drilling rigs are coalbed methane, geothermal development, coalfield management, emergency rescue and shallow well oil and gas development. With the gradual shrinkage of shallow resources, the depth of wells increases year by year, and the drilling depth required by hydraulic drilling rigs gradually increases, generally between hundreds of meters and thousands of meters. The greater the depth, the hydraulic drilling rigs gradually develop towards large-scale.

[0003] The current hydraulic deep well drilling rigs are generally fixed. When the hydraulic drilling rig is needed for drilling construction, the base of the hydraulic drilling rig is fixed at the construction site. When the drilling construction task is completed, the hydraulic drilling rig needs to be disassembled for transportation to the next construction site. The hydraulic deep well drilling rig is large in size and weight. Before the transfer and transportation, the hydraulic deep well drilling rig needs to be disassembled into multiple parts to reduce the transportation size. In the related art, when disassembling the hydraulic deep well drilling rig, the derrick and the base need to be separated. The disassembly and assembly process requires high-position lifting, which has a high risk factor. In addition, the main engine hydraulic system will be disassembled. Repeated disassembly and assembly of the main engine hydraulic system will bring new pollution sources to the main engine hydraulic system, and the disassembly and assembly workload is extremely large and the efficiency is low.

[0004] Therefore, how to solve the problem of large workload and low efficiency of disassembly and assembly of hydraulic deep well drilling rigs during transfer and transportation in the related art has become an important technical problem to be solved by technical personnel in this field. Summary of the invention

[0005] The invention provides a hydraulic deep well drilling rig, which is used to solve the defects of the hydraulic deep well drilling rig in the related art, such as large disassembly and assembly workload and low efficiency during transfer and transportation.

[0006] The present invention provides a hydraulic deep well drilling rig, comprising a bearing base and a working device; The working device comprises a power mechanism and a derrick mechanism, the derrick mechanism comprises a derrick body, a power head and a power drive assembly, the power drive assembly is suitable for driving the power head to slide reciprocatingly relative to the derrick body, the power mechanism comprises a support frame and a power source module arranged on the support frame, the first end of the derrick body is rotatably connected to the support frame, the power source module is connected to the power drive assembly, the working device is arranged above the bearing base, and the support frame is detachably connected to the bearing base; The derrick body is suitable for rotating between a working position and a storage position. In the working position, the derrick body is arranged in a vertical direction, and the bearing base supports the first end of the derrick body. In the storage position, the derrick body is horizontally placed above the power mechanism.

[0007] According to a hydraulic deep well drilling rig provided by the present invention, the working device further comprises a driving mechanism, the driving mechanism is arranged between the derrick body and the supporting frame, and the driving mechanism is suitable for driving the derrick body to reciprocate relative to the supporting frame.

[0008] According to a hydraulic deep well drilling rig provided by the present invention, the first end of the derrick body is rotatably connected to the edge position of the support frame; When the derrick body is in the working position, the end surface of the first end of the derrick body has a suspended portion relative to the support frame, and the bearing base is suitable for providing support for the suspended portion.

[0009] According to a hydraulic deep well drilling rig provided by the present invention, the bearing base comprises a first bearing seat and a second bearing seat, and the first bearing seat is suitable for supporting the power mechanism; The second bearing seat is rotatably connected to the first bearing seat, and the second bearing seat is suitable for rotating between a supporting position and an idle position. In the supporting position, the second bearing seat is located above the bearing surface of the first bearing seat, and the second bearing seat is located below the suspended portion to support the end surface of the first end of the derrick body. In the idle position, the second bearing seat is located to the side of the first bearing seat, and the second bearing seat is located as a whole below the bearing surface of the first bearing seat.

[0010] A hydraulic deep well drilling rig provided according to the present invention further includes a connecting member, wherein the connecting member is suitable for connecting the second bearing seat to the supporting frame when the second bearing seat rotates to the supporting position.

[0011] According to a hydraulic deep well drilling rig provided by the present invention, the derrick mechanism further comprises an adjusting foot, the adjusting foot is arranged at the first end of the derrick body, and the adjusting foot is suitable for being supported on the bearing base.

[0012] According to a hydraulic deep well drilling rig provided by the present invention, the adjustment leg includes a supporting part and a connecting part, the supporting part is suitable for interacting with the bearing base, the supporting part is universally hinged to one end of the connecting part, and the other end of the connecting part is threadedly connected to the first end of the derrick body.

[0013] A hydraulic deep well drilling rig provided by the present invention further comprises a pull rod, the length of which can be telescopically adjusted, the first end of which is detachably connected to the support frame, the second end of which is rotatably connected to the derrick body, and the second end of which is detachably connected to the derrick body; The power drive assembly has a traction rope, a first end of which is connected to the power head, and a second end of the traction rope and a second end of the pull rod are connected to the same position of the derrick body.

[0014] A hydraulic deep well drilling rig provided by the present invention further comprises a clamping device, the clamping device having a clamping space for a drill rod to pass through, the clamping device being adapted to selectively clamp or release the drill rod; The clamping device is arranged on the derrick body, and the clamping device is detachably connected to the derrick body.

[0015] A hydraulic deep well drilling rig provided according to the present invention further includes a hoisting device, which is arranged below the clamping device and connected to the clamping device.

[0016] The hydraulic deep well drilling rig provided by the present invention comprises a bearing base and a working device, wherein the working device is arranged above the bearing base, and the bearing base is used to support and fix the working device. The working device comprises a power mechanism, a derrick mechanism and a driving mechanism, wherein the derrick mechanism comprises a derrick body, a power head and a power driving assembly, wherein the power driving assembly is used to drive the power head to slide back and forth relative to the derrick body to realize the lifting and lowering of the power head. The power mechanism comprises a supporting frame and a power source module, wherein the power source module is arranged on the supporting frame, and the power driving assembly is connected to the power source module, and the power source module serves as a power source of the power driving assembly. The first end of the derrick body is rotatably connected to the supporting frame, and the derrick body can rotate between a working position and a storage position. When the derrick body rotates to the working position, the derrick body is arranged in a vertical direction, and the bearing base can support the first end of the derrick body, so that the bearing base bears the load during the working process of the derrick mechanism. When the derrick body rotates to the storage position, the derrick body is horizontally placed above the power mechanism to realize the folding of the working device. The support frame is detachably connected to the bearing base, and the bearing base and the working device can be transported separately, thus realizing the split transportation of the hydraulic deep well drilling rig. In this way, the power source modules such as the hydraulic system are centrally arranged on the support frame, and the working device is arranged in a rotatable, foldable and stored structure. When transporting the hydraulic deep well drilling rig to another site, the working device is folded and the support frame is separated from the bearing base. There is no need to separate the support frame from the derrick body, and accordingly, there is no need to separate the power source modules such as the hydraulic system from the power drive components of the derrick mechanism, which effectively avoids the disassembly of the hydraulic system, reduces the workload of disassembly and assembly, improves the efficiency of disassembly and assembly, and eliminates the pollution of the hydraulic system, thus solving the problem of large workload and low efficiency of disassembly and assembly of the hydraulic deep well drilling rig during transport to another site in the related technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a structural schematic diagram of the deep well hydraulic drilling rig provided by the present invention.

[0019] Figure 2 It is a front view of the deep well hydraulic drilling rig provided by the present invention.

[0020] Figure 3It is a schematic structural diagram of the first bearing base and the second bearing base provided by the present invention (two second bearing bases are shown in the figure, wherein the second bearing base with a solid line is the second bearing base in a supporting position, and the second bearing base with a dotted line is the second bearing base in an empty position).

[0021] Figure 4 It is a structural schematic diagram of the pull rod provided by the present invention.

[0022] Reference numerals: 1. Bearing base; 2. Derrick body; 3. Power head; 4. Support frame; 5. Power source module; 6. Driving mechanism; 7. First bearing seat; 8. Second bearing seat; 9. Connector; 10. Adjustment foot; 11. Pull rod; 12. Traction rope; 13. Clamping device; 14. Hoisting device; 15. First rod body; 16. Second rod body; 17. Third rod body; 18. Lifting frame; 19. First pulley; 20. Second pulley. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] Combine the following Figures 1 to 4 The hydraulic deep well drilling rig of the present invention is described.

[0025] like Figures 1 to 4 As shown, the hydraulic deep well drilling rig provided by the embodiment of the present invention includes a bearing base 1 and a working device.

[0026] Specifically, the working device is arranged above the bearing base 1, and the bearing base 1 is used to support and fix the working device.

[0027] The working device comprises a power mechanism, a derrick mechanism and a driving mechanism 6.

[0028] The derrick mechanism comprises a derrick body 2 , a power head 3 and a power drive assembly, wherein the power drive assembly is used to drive the power head 3 to slide back and forth relative to the derrick body 2 , so as to realize the lifting and lowering of the power head 3 .

[0029] The power mechanism includes a support frame 4 and a power source module 5. The power source module 5 is arranged on the support frame 4. The power drive assembly is connected to the power source module 5. The power source module 5 serves as the power source of the power drive assembly. For a hydraulic deep well drilling rig, its power mainly comes from a hydraulic system. The power drive assembly includes a hydraulic cylinder, and the corresponding power source module 5 includes at least a hydraulic pump, a motor, etc.

[0030] The first end of the derrick body 2 is rotatably connected to the support frame 4 . Specifically, the first end of the derrick body 2 and the support frame 4 can be hinged together through a pin shaft, and the axis of the pin shaft is perpendicular to the axis of the derrick body 2 .

[0031] The derrick body 2 can rotate between a working position and a storage position.

[0032] When the derrick body 2 rotates to the working position, the derrick body 2 is arranged in the vertical direction, and the bearing base 1 can support the first end of the derrick body 2 so that the bearing base 1 bears the load during the working process of the derrick mechanism.

[0033] When the derrick body 2 is rotated to the storage position, the derrick body 2 is placed horizontally above the power mechanism to achieve folding of the working device.

[0034] The support frame 4 is detachably connected to the bearing base 1, and the bearing base 1 and the working device can be transported separately, thereby realizing the split transportation of the hydraulic deep well drilling rig. Specifically, the support frame 4 and the bearing base 1 can be connected together by bolts or pins.

[0035] In this way, the power source modules 5 such as the hydraulic system are centrally arranged on the support frame 4, and the working device is arranged in a structure form that can be rotated, folded and stored. When transporting the work device to a new site, the working device can be folded and the support frame 4 can be separated from the bearing base 1. There is no need to separate the support frame 4 from the derrick body 2, and accordingly, there is no need to separate the power source modules 5 such as the hydraulic system from the power drive components of the derrick mechanism, which effectively avoids the disassembly of the hydraulic system, reduces the workload of disassembly and assembly, improves the efficiency of disassembly and assembly, and eliminates the pollution of the hydraulic system, solving the problem of large workload and low efficiency of disassembly and assembly of the hydraulic deep well drilling rig in the related art during transporting the work to a new site.

[0036] In the embodiment of the present invention, the working device further comprises a driving mechanism 6 , which is disposed between the derrick body 2 and the supporting frame 4 , and the driving mechanism 6 can drive the derrick body 2 to reciprocate relative to the supporting frame 4 .

[0037] In this way, the driving mechanism 6 can reduce human involvement and reduce labor intensity when the derrick body 2 is rotated between the working position and the storage position. In addition, the setting of the driving mechanism 6 avoids the high-position lifting of the derrick body 2, reducing the risk factor.

[0038] Specifically, the driving mechanism 6 can be a hydraulic cylinder, and the power source of the hydraulic cylinder is the pressure of the hydraulic oil, which is consistent with the power source of the hydraulic deep well drilling rig. The hydraulic cylinder is connected to the power source module 5 of the working device, and the power source module 5 of the working device is used to provide power for the movement of the hydraulic cylinder, without the need to introduce a new power source.

[0039] The cylinder barrel of the hydraulic cylinder is rotatably connected to the support frame 4, and the piston rod of the hydraulic cylinder is rotatably connected to the derrick body 2. The rotation axis of the hydraulic cylinder relative to the support frame 4 and the rotation axis of the hydraulic cylinder relative to the derrick body 2 are both parallel to the rotation axis of the derrick body 2 relative to the support frame 4.

[0040] Specifically, the cylinder barrel of the hydraulic cylinder can be hinged to the support frame 4 through a pin, and the piston rod of the hydraulic cylinder can be hinged to the derrick body 2 through a pin.

[0041] In this embodiment, the first end of the derrick body 2 is rotatably connected to the edge of the support frame 4, so that when the derrick body 2 is rotated to the working position, the end surface of the first end of the derrick body 2 has a cantilevered portion relative to the support frame 4. Figure 3 .

[0042] Such arrangement enables the bearing base 1 to provide support for the suspended portion, ensuring the transfer of load between the derrick body 2 and the bearing base 1 , so that the load of the derrick mechanism can be smoothly transferred to the bearing base 1 during the operation of the hydraulic deep well drilling rig.

[0043] In order to ensure that the bearing base 1 effectively supports the derrick body 2 , a protruding structure may be formed on the bearing base 1 at a position corresponding to the suspended portion, so that the protruding structure contacts the suspended portion.

[0044] In a further embodiment, the bearing base 1 includes a first bearing seat 7 and a second bearing seat 8. The first bearing seat 7 is used to support the power mechanism. The second bearing seat 8 is rotatably connected to the first bearing seat 7, and the second bearing seat 8 can rotate between a supporting position and an idle position.

[0045] The supporting position of the second bearing base 1 corresponds to the working position of the derrick body 2. When the derrick body 2 needs to be rotated to the working position, the second bearing base 1 needs to be rotated to the supporting position. The vacant position of the second bearing base 1 corresponds to the storage position of the derrick body 2. When the derrick body 2 needs to be rotated to the storage position, the second bearing base 1 can be rotated to the vacant position.

[0046] When the second bearing seat 8 rotates to the supporting position, the second bearing seat 8 is located above the bearing surface of the second bearing seat 8 and directly below the suspended portion. The second bearing portion, as the protruding structure, can support the end surface of the first end of the derrick body 2.

[0047] When the second bearing seat 8 rotates to the empty position, there is no need to support the derrick body 2. The second bearing seat 8 is located on the side of the first bearing seat 7, and the second bearing seat 8 is located below the bearing surface of the first bearing seat 7, which can reduce the overall height of the bearing base 1 and facilitate transportation.

[0048] In this embodiment, the hydraulic deep well drilling rig also includes a connecting member 9. When the second bearing seat 8 rotates to the supporting position, the connecting member 9 connects the second bearing seat 8 and the supporting frame 4 together to improve the relative stability of the second bearing seat 8 and the supporting frame 4, limit the second bearing seat 8 from rotating to the empty position, and ensure that the second bearing seat 8 stably supports the derrick body 2.

[0049] Specifically, a first connecting hole can be set on the second bearing seat 8, and a second connecting hole can be set on the supporting frame 4, so that the connecting member 9 passes through the first connecting hole and the second connecting hole at the same time, and the interaction between the connecting member 9 and the hole wall of the first connecting hole and the interaction between the connecting member 9 and the hole wall of the second connecting hole are used to limit the rotation of the second bearing seat 8 relative to the supporting frame 4.

[0050] The connecting member 9 may be, but is not limited to, a pin or a bolt.

[0051] In the embodiment of the present invention, the derrick mechanism further includes an adjustment foot 10, which is disposed at the first end of the derrick body 2 and is used to be supported on the bearing base 1. The adjustment foot 10 itself can be adjusted to adapt to different gaps between the first end of the derrick body 2 and the bearing base 1, thereby reducing the requirements for processing accuracy and assembly accuracy.

[0052] In this embodiment, the adjusting foot 10 includes a supporting portion and a connecting portion, wherein the supporting portion is used to interact with the bearing base 1. The connecting portion is disposed between the supporting portion and the first end of the derrick body 2, one end of the connecting portion is connected to the supporting portion, and the other end of the connecting portion is threadedly connected to the first end of the derrick body 2.

[0053] By rotating the connection portion relative to the derrick body 2, the distance between the support portion and the first end of the derrick body 2 can be adjusted to adapt to the gap between the first end of the derrick body 2 and the bearing base 1. The adjusting foot 10 ensures the load transfer between the derrick mechanism and the bearing base 1, and the load of the derrick mechanism can be transferred to the bearing base 1 through the adjusting foot 10.

[0054] The support part and the connection part are universally hinged, and the support part and the connection part can rotate relative to each other in any direction. When the connection part is rotated relative to the derrick body 2, even if the support part cannot rotate due to the friction between it and the bearing base 1, the connection part can still rotate relative to the derrick body 2, which reduces the difficulty of operation.

[0055] Moreover, the support portion can be rotated to any angle relative to the connection portion, and when the support portion is rotated to any angle relative to the connection portion, the load can be effectively transferred between the support portion and the connection portion. As long as the support portion is in contact with the load-bearing base 1, the load can be effectively transferred between the support portion and the load-bearing base 1. When adjusting the adjustment foot 10, the support portion can spontaneously adapt to the load-bearing surface of the load-bearing base 1, so that the support portion and the load-bearing base 1 are in surface contact, thereby increasing the contact area between the adjustment foot 10 and the load-bearing base 1.

[0056] In the embodiment of the present invention, the hydraulic deep well drilling rig further includes a pull rod 11, a first end of the pull rod 11 is detachably connected to the support frame 4, and a second end of the pull rod 11 is detachably connected to the derrick body 2. The pull rod 11 can withstand tension, and when the derrick body 2 is in the working position, the derrick body 2 will generate a bending moment. The setting of the pull rod 11 increases the overall strength and rigidity of the working device, can alleviate the bending deformation of the derrick body 2, etc., thereby reducing the deviation between the central axis of the power head 3 and the central axis of the wellhead, and improving the drilling quality.

[0057] The length of the tie rod 11 can be adjusted telescopically, and the two ends of the tie rod 11 are respectively connected to the derrick body 2 and the support frame 4. After the derrick body 2 is fixed in the working position, the tie rod 11 can generate different pulling forces on the derrick body 2 by adjusting the length of the tie rod 11. The length of the tie rod 11 can be adjusted according to the load of the derrick body 2.

[0058] Specifically, the pull rod 11 includes a first rod body 15, a second rod body 16 and a third rod body 17, which are coaxially arranged and respectively located at two ends of the second rod body 16. The first rod body 15 is threadedly connected to the second rod body 16, and the third rod body 17 is threadedly connected to the second rod body 16. The direction of rotation of the thread on the first rod body 15 is opposite to that of the thread on the third rod body 17.

[0059] One end of the first rod 15 away from the second rod 16 is connected to the support frame 4, and one end of the third rod 17 away from the second rod 16 is connected to the support frame 4. A torque is applied to the second rod 16 to rotate the second rod 16 relative to the first rod 15 and the third rod 17. By rotating the second rod 16 in the positive direction, the first rod 15 and the third rod 17 can be brought closer to each other, thereby shortening the length of the pull rod 11. By rotating the second rod 16 in the reverse direction, the first rod 15 and the third rod 17 can be moved away from each other, thereby lengthening the length of the pull rod 11.

[0060] In this embodiment, the power drive assembly is configured as a traction rope 12. Figure 1 and Figure 2 The power drive assembly includes a lifting frame 18, a first pulley 19, a second pulley 20, a telescopic cylinder and a traction rope 12. The lifting frame 18 is slidably connected to the derrick body 2, and the telescopic cylinder is arranged between the lifting frame 18 and the derrick body 2. The telescopic action of the telescopic cylinder can drive the lifting frame 18 to rise and fall relative to the derrick body 2. The first pulley 19 and the second pulley 20 are arranged at the top of the lifting frame 18, and the second end of the traction rope 12 is fixedly connected to the derrick body 2. After the traction rope 12 passes around the first pulley 19 and the second pulley 20, the first end of the traction rope 12 is connected to the power head 3. When the lifting frame 18 is raised and lowered relative to the derrick body 2, the first end of the traction rope 12 will drive the power head 3 to rise and fall.

[0061] With such arrangement, the lifting distance of the first end of the traction rope 12 is twice the telescopic distance of the telescopic cylinder, which improves the lifting efficiency of the power head 3 and helps to reduce the requirements for the telescopic stroke of the telescopic cylinder.

[0062] In this embodiment, the second end of the traction rope 12 and the second end of the pull rod 11 are connected to the same position of the derrick body 2. Specifically, a connecting seat is provided on the derrick body 2, and the second end of the traction rope 12 and the second end of the pull rod 11 are both connected to the connecting seat. In this way, the pull rod 11 can better balance the bending moment of the derrick body 2.

[0063] In a further embodiment, the second end of the tie rod 11 is rotatably connected to the derrick body 2 , and when the first end of the tie rod 11 is disconnected from the support frame 4 , the tie rod 11 can be rotated relative to the derrick body 2 around its second end.

[0064] When the derrick body 2 needs to be rotated to the storage position, the first end of the tie rod 11 is first disconnected from the support frame 4, and then the driving mechanism 6 drives the derrick body 2 to rotate to the storage position. During the process, the first end of the tie rod 11 rotates relative to the derrick body 2 under the action of the support frame 4. During the rotation of the derrick body 2 to the storage position, the height of the connecting seat and the second end of the tie rod 11 gradually decreases. When the derrick body 2 rotates to the height of the second end of the tie rod 11 is smaller, or when the derrick body 2 rotates to the storage position, the first end of the tie rod 11 is detached from the derrick body 2.

[0065] That is to say, during the transfer transportation, the pull rod 11 is disconnected from the working device and can be transported separately.

[0066] When the derrick body 2 needs to be rotated to the working position, the second end of the pull rod 11 is first connected to the connection seat of the derrick body 2, and then the driving mechanism 6 drives the derrick body 2 to rotate to the working position. Alternatively, the driving mechanism 6 can first drive the derrick body 2 to rotate to the working position by a certain angle, and then the second end of the pull rod 11 is connected to the connection seat of the derrick body 2 when the height of the connection seat on the derrick body 2 is appropriate. When the derrick body 2 is rotated to the working position, the first end of the pull rod 11 is connected to the support frame 4.

[0067] In the embodiment of the present invention, the hydraulic deep well drilling rig further includes a clamping device 13, and the clamping device 13 has a clamping space for the drill rod to pass through. The clamping device 13 is arranged on the derrick body 2, and the clamping device 13 can selectively clamp or release the drill rod. The clamping device 13 is relatively fixed to the derrick body 2. During the drilling process of the drill rod or when the drill rod needs to be lifted, the clamping device 13 releases the drill rod to allow the drill rod to be lifted and lowered relative to the clamping device 13 and the derrick body 2. When the drill rod needs to be fixed and the drill rod is relatively fixed to the clamping device 13 and the derrick body 2, the clamping device 13 can clamp the drill rod.

[0068] In this embodiment, the clamping device 13 is detachably connected to the derrick body 2. When the hydraulic deep well drilling rig is in operation, the clamping device 13 is fixed to the derrick body 2. When transporting at a transfer site, the clamping device 13 is removed from the derrick body 2 for separate transportation. The clamping device 13 will not affect the transportation quality and transportation size of the working device.

[0069] In some prior arts, although a clamping device 13 is provided, the clamping device 13 is provided on a base. When the clamping device 13 clamps the drill rod, the load of the drill rod is all applied to the base through the clamping device 13, and a base with a strong load-bearing capacity needs to be designed separately. The base is large in size, complex in structure, and heavy, and the disassembly and assembly of the base is cumbersome, and more transport vehicles are required for transfer and transportation.

[0070] In the present embodiment, the clamping device 13 is directly arranged on the derrick body 2. When the clamping device 13 clamps the drill pipe, the load of the drill pipe acts entirely on the derrick body 2 and the supporting base 1 through the clamping device 13. There is no need to equip the clamping device 13 with a separate base, thus avoiding the need for a separate design of the base, simplifying the structure, and not increasing the amount of transportation tasks, thereby reducing the number of transport vehicles required for transfer transportation.

[0071] As hydraulic deep well drilling rigs develop towards large-scale, well control devices, such as blowout preventers, are required during the operation of the drilling rigs. Therefore, certain requirements are placed on the height of the clamping device 13. In this embodiment, the clamping device 13 is directly fixed on the derrick body 2, which just increases the height dimension of the space below the clamping device 13 and meets the requirements for the height of the space below the clamping device 13.

[0072] In this embodiment, the hydraulic deep well drilling rig further includes a hoisting device 14, which is disposed below the clamping device 13 and is connected to the clamping device 13. The hoisting device 14 can be used to hoist the well control device, which is convenient for operation.

[0073] The lifting device 14 can be, but is not limited to, configured as a hand chain hoist, and the specific structure will not be described again.

[0074] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A hydraulic deep well drilling rig, characterized in that: It comprises a bearing base (1) and a working device; The working device comprises a power mechanism and a derrick mechanism, the derrick mechanism comprises a derrick body (2), a power head (3) and a power drive assembly, the power drive assembly is suitable for driving the power head (3) to slide reciprocatingly relative to the derrick body (2), the power mechanism comprises a support frame (4) and a power source module (5) arranged on the support frame (4), the first end of the derrick body (2) is rotatably connected to the support frame (4), the power source module (5) is connected to the power drive assembly, the working device is arranged above the bearing base (1), and the support frame (4) is detachably connected to the bearing base (1); The derrick body (2) is suitable for rotating between a working position and a storage position. In the working position, the derrick body (2) is arranged in a vertical direction, and the bearing base (1) supports the first end of the derrick body (2). In the storage position, the derrick body (2) is placed horizontally above the power mechanism.

2. The hydraulic deep well drilling rig according to claim 1, characterized in that: The working device further comprises a driving mechanism (6), wherein the driving mechanism (6) is arranged between the derrick body (2) and the supporting frame (4), and the driving mechanism (6) is suitable for driving the derrick body (2) to reciprocate relative to the supporting frame (4).

3. The hydraulic deep well drilling rig according to claim 1, characterized in that: The first end of the derrick body (2) is rotatably connected to the edge of the support frame (4); When the derrick body (2) is in the working position, the end surface of the first end of the derrick body (2) has a suspended portion relative to the support frame (4), and the bearing base (1) is suitable for providing support for the suspended portion.

4. The hydraulic deep well drilling rig according to claim 3, characterized in that: The bearing base (1) comprises a first bearing seat (7) and a second bearing seat (8), wherein the first bearing seat (7) is suitable for supporting the power mechanism; The second bearing seat (8) is rotatably connected to the first bearing seat (7), and the second bearing seat (8) is suitable for rotating between a supporting position and an idle position. In the supporting position, the second bearing seat (8) is located above the bearing surface of the first bearing seat (7), and the second bearing seat (8) is located below the suspended portion to support the end surface of the first end of the derrick body (2). In the idle position, the second bearing seat (8) is located to the side of the first bearing seat (7), and the second bearing seat (8) is located as a whole below the bearing surface of the first bearing seat (7).

5. The hydraulic deep well drilling rig according to claim 4, characterized in that: It also comprises a connecting member (9), wherein the connecting member (9) is suitable for connecting the second bearing seat (8) and the supporting frame (4) together when the second bearing seat (8) is rotated to the supporting position.

6. The hydraulic deep well drilling rig according to any one of claims 1 to 5, characterized in that: The derrick mechanism further comprises an adjusting support foot (10), wherein the adjusting support foot (10) is arranged at a first end of the derrick body (2), and the adjusting support foot (10) is suitable for being supported on the bearing base (1).

7. The hydraulic deep well drilling rig according to claim 6, characterized in that: The adjusting support foot (10) comprises a supporting portion and a connecting portion, the supporting portion being suitable for interacting with the bearing base (1), the supporting portion being universally hinged to one end of the connecting portion, and the other end of the connecting portion being threadedly connected to the first end of the derrick body (2).

8. The hydraulic deep well drilling rig according to any one of claims 1 to 5, characterized in that: It also comprises a pull rod (11), the length of which can be telescopically adjusted, the first end of which is detachably connected to the support frame (4), the second end of which is rotatably connected to the derrick body (2), and the second end of which is detachably connected to the derrick body (2); The power drive assembly comprises a traction rope (12), a first end of the traction rope (12) being connected to the power head (3), and a second end of the traction rope (12) and a second end of the pull rod (11) being connected to the same position of the derrick body (2).

9. The hydraulic deep well drilling rig according to any one of claims 1 to 5, characterized in that: It also comprises a clamping device (13), the clamping device (13) having a clamping space for the drill rod to pass through, the clamping device (13) being suitable for selectively clamping or releasing the drill rod; The clamping device (13) is arranged on the derrick body (2), and the clamping device (13) is detachably connected to the derrick body (2).

10. The hydraulic deep well drilling rig according to claim 9, characterized in that: It also comprises a hoisting device (14), wherein the hoisting device (14) is arranged below the clamping device (13), and the hoisting device (14) is connected to the clamping device (13).

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