Reaming device for petroleum and natural gas well drilling

Abstract

The utility model belongs to the technical field of petroleum and natural gas drilling, and particularly relates to a reaming device for petroleum and natural gas drilling, which comprises a drill rod, a reaming component is arranged on the outer side of the drill rod, a first mounting frame is fixedly connected to the top end of the drill rod, and a screw rod is fixedly connected to the top end of the first mounting frame. The middle end of the lead screw is slidably connected with a second mounting frame, the bottom end of the second mounting frame is rotatably connected with a bolt, the bolt is in threaded connection with the lead screw, and the outer side of the top end of the lead screw is slidably connected with a limiting frame; according to the reaming device for petroleum and natural gas well drilling, the reaming diameter is adjusted by controlling the inclination angle of the reaming plate, so that the device can be adjusted according to specific well drilling requirements to adapt to different well diameters. The flexibility is particularly important because it allows the same set of equipment to be used in a variety of different drilling environments, reducing equipment requirements and replacement costs.

Description

Technical Field

[0001] The utility model belongs to the technical field of oil and gas drilling, in particular to a hole reaming device for oil and gas drilling. Background Art

[0002] Hole expansion equipment plays an important role in oil and gas drilling. Its main function is to expand the diameter of the drilled wellbore by installing and operating specific tools in the wellbore to meet the needs of wellbore design and production. These equipment are usually designed to handle different types of rock and formation conditions to ensure the smooth progress of the drilling process and the final completion quality of the wellbore.

[0003] After searching, the existing patent (Announcement No.: CN208981958U) discloses a reaming device for oil and gas drilling, including a first column and a second column, the interior of the second column is provided with an installation chamber, the interior of the installation chamber is provided with a motor, the bottom of the second column is rotatably provided with an installation disk, and the outer side of the installation disk is evenly distributed with conical heads, the output end of the motor is connected to the installation disk, the bottom of the installation disk is fixedly provided with the first column, the outer side of the first column is fixedly provided with three groups of sawtooth pieces through the installation block, and the bottom of the first column is fixedly provided with a conical connecting column. The utility model is provided with a motor that can perform secondary reaming of the soil in the well through the conical head on the installation disk, which effectively improves the reaming efficiency of the device, and is provided with a conical connecting column that can dredge and guide the soil after reaming through the spiral protrusion, so that the loss of the device during reaming is effectively reduced, the practicality of the device is improved, and it is easy to promote and use.

[0004] However, in the actual use of the above scheme, the borehole is expanded by a cone head. However, in the actual mining process, due to the complexity and diversity of the mining environment and mining conditions, if the size of the cone head cannot be adjusted according to different formations or drilling requirements, the scope of use of the device will be limited. This means that in different types of rocks or formations of different hardness, the device may not work efficiently or safely, which may lead to low hole expansion efficiency in certain formations. For example, in hard rock formations, a smaller cone head may not be able to effectively expand the aperture, while in softer formations, a larger cone head may cause unnecessary material wear and energy waste.

[0005] To this end, the utility model provides a hole reaming device for oil and natural gas drilling. Utility Model Content

[0006] In order to make up for the shortcomings of the prior art and solve the problem that the size of the conical head cannot be adjusted according to different formations or drilling requirements, and the use range of the device will be limited, the utility model proposes a reaming device for oil and gas drilling.

[0007] The technical solution adopted by the utility model to solve its technical problems is as follows: the utility model is a reaming device for oil and gas drilling, comprising a drill rod, a reaming assembly is arranged on the outer side of the drill rod, a first mounting frame is fixedly connected to the top of the drill rod, a screw rod is fixedly connected to the top of the first mounting frame, a second mounting frame is slidably connected to the middle end of the screw rod, a bolt is rotatably connected to the bottom end of the second mounting frame, the bolt is threadedly connected to the screw rod, a limiting frame is slidably connected to the outer side of the top end of the screw rod, an external connecting rod is fixedly connected to the top of the limiting frame, a uniformly distributed second transmission frame is rotatably connected to the outer side of the limiting frame, the first transmission frame is rotatably connected to the inner side of the middle end of the second transmission frame, the first transmission frame is rotatably connected to the second mounting frame, the inner side of the bottom end of the second transmission frame is rotatably connected to a fixed frame, a guide assembly is arranged inside the fixed frame, and a reaming plate is fixedly connected to the outer side of the fixed frame;

[0008] Through the above technical solution, the bolt is rotated to drive the second mounting frame to be raised and lowered synchronously, and at the same time, the second mounting frame is driven by the first transmission frame to rotate, thereby driving the top end of the fixed frame to rotate through the second transmission frame, so as to adjust the inclination angle of the eye expansion plate and adjust the eye expansion size.

[0009] Further, the reaming assembly includes a secondary reaming head, the outer side of the bottom end of the drill pipe is fixedly connected with the primary reaming head, the outer side of the middle end of the drill pipe is fixedly connected with the secondary reaming head, and the secondary reaming head is fixedly connected to the first mounting frame;

[0010] Through the above technical solution, multi-stage reaming is achieved by the cooperation of the first-stage reaming head, the second-stage reaming head and the reaming plate, thereby reducing the pressure on the drill pipe by gradually increasing the hole diameter.

[0011] Further, the guide assembly includes a guide column, the inner middle end of the fixed frame is rotatably connected to hydraulic rods corresponding to two sides, the bottom end of the hydraulic rod is rotatably connected to a transmission rod, the outer side of the middle end of the transmission rod is rotatably connected to a first connecting rod, the outer side of the top end of the first connecting rod is rotatably connected to the guide column, the outer side of the top end of the guide column is rotatably connected to second connecting rods opposite to two sides, the outer side of the bottom end of the second connecting rod is rotatably connected to a limiting rod, the limiting rod is rotatably connected to the top end of the fixed frame, and the bottom end of the fixed frame is rotatably connected to the first mounting frame;

[0012] Through the above technical solution, the hydraulic rod itself is extended and retracted, so that the transmission rod and the first connecting rod are used to drive the guide column and the second connecting rod and the limit rod to rotate as the center of the circle, so as to adjust the inclination angle of the guide column and limit the angle of the top of the device, so that the drilling angle can be adjusted by cooperating with multiple groups of hydraulic rods.

[0013] Furthermore, the outermost width of the top of the secondary reamer is consistent with the outermost width of the bottom of the reamer plate, and the outermost width of the bottom of the secondary reamer is consistent with the outermost width of the top of the primary reamer;

[0014] Through the above technical solution, by setting the outermost width of the top of the secondary reamer to be the same as the outermost width of the bottom of the reamer plate, and setting the outermost width of the bottom of the secondary reamer to be the same as the outermost width of the top of the primary reamer, the primary reamer, the secondary reamer and the reamer plate can be seamlessly connected.

[0015] Furthermore, a slide groove having the same diameter as the screw rod is provided inside the external connecting rod connected to the top end of the limit frame;

[0016] Through the above technical solution, by arranging a slide groove in the drill rod at the top end of the limit frame, space for the screw rod to move upward can be provided.

[0017] Furthermore, the second mounting frame is smaller in size than the first mounting frame and the limiting frame;

[0018] Through the above technical solution, the lifting stroke of the second mounting bracket on the screw rod can be increased by reducing the size of the second mounting bracket.

[0019] The beneficial effects of the utility model are as follows:

[0020] 1. The utility model discloses a reaming device for oil and gas drilling, which uses a first transmission frame, a second transmission frame and a fixed frame to control the inclination angle of the reaming plate through a second mounting frame, thereby adjusting the reaming diameter, so that the device can be adjusted according to specific drilling requirements and adapt to different well diameters. This flexibility is particularly important because it allows the same set of equipment to be used in a variety of different drilling environments, reducing equipment requirements and replacement costs.

[0021] 2. The reaming device for oil and gas drilling described in the utility model is extended and retracted by the hydraulic rod itself, so that the inclination of the guide column is adjusted by using the transmission rod, the first connecting rod, the second connecting rod and the limit rod, so as to adjust the reaming angle, which helps to more accurately control the reaming operation, thereby improving the quality and accuracy of the wellbore. This is very important for subsequent completion operations and improving production capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The utility model is further described below in conjunction with the accompanying drawings.

[0023] Figure 1 It is a three-dimensional diagram of the utility model;

[0024] Figure 2 This is a schematic diagram of the structure of the second mounting frame in the utility model;

[0025] Figure 3 This is a schematic diagram of the guide column structure in the utility model Figure 1 ;

[0026] Figure 4 It is a schematic diagram of the eye expansion plate structure in the utility model;

[0027] Figure 5 This is a schematic diagram of the guide column structure in the utility model Figure 2 ;

[0028] In the figure: 1. drill rod; 11. primary reaming head; 12. secondary reaming head; 13. external rod; 2. first mounting frame; 21. screw rod; 22. bolt; 23. second mounting frame; 24. limit frame; 25. first transmission frame; 26. second transmission frame; 3. fixed frame; 31. hydraulic rod; 32. transmission rod; 33. first connecting rod; 34. guide column; 35. second connecting rod; 36. limit rod; 37. reaming plate. DETAILED DESCRIPTION

[0029] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0030] Embodiment 1:

[0031] like Figures 1 to 5As shown, the utility model discloses a reaming device for oil and gas drilling, comprising a drill rod 1, a reaming assembly is arranged outside the drill rod 1, a first mounting frame 2 is fixedly connected to the top of the drill rod 1, the first mounting frame 2 is supported and fixed by the drill rod 1, a screw rod 21 is fixedly connected to the top of the first mounting frame 2, the screw rod 21 is fixed by the first mounting frame 2, a second mounting frame 23 is slidably connected to the middle end of the screw rod 21, the second mounting frame 23 is limited by the screw rod 21, a bolt 22 is rotatably connected to the bottom end of the second mounting frame 23, the bolt 22 is connected and limited by the second mounting frame 23, the bolt 22 is threadedly connected to the screw rod 21, the bolt 22 is limited by the screw rod 21, and the second mounting frame 23 can be lifted and lowered by rotating the bolt 22 using the limit of the screw rod 21, a limit frame 24 is slidably connected to the outer side of the top end of the screw rod 21, the limit frame 24 is limited by the screw rod 21, an external rod 13 is fixedly connected to the top end of the limit frame 24, and an external rod 13 is fixedly connected to the top end of the limit frame 24. The connecting rod 13 limits and fixes the top of the limiting frame 24 (the external connecting rod 13 is connected to the power source of the drilling device through other external drill rods), the outer side of the limiting frame 24 is rotatably connected with a uniformly distributed second transmission frame 26, and the second transmission frame 26 is limited by the limiting frame 24, the middle side of the second transmission frame 26 is rotatably connected with the first transmission frame 25, and the outer end of the first transmission frame 25 is limited by the middle side of the second transmission frame 26, the first transmission frame 25 is rotatably connected to the second mounting frame 23, and the inner end of the first transmission frame 25 is limited by the second mounting frame 23, and the inner middle end of the second transmission frame 26 is connected to the second mounting frame 23 through the first transmission frame 25, and the bottom end of the second transmission frame 26 is rotatably connected with the fixed frame 3, and the top of the fixed frame 3 is limited by the second transmission frame 26, a guide assembly is provided on the inner side of the fixed frame 3, and an eye reaming plate 37 is fixedly connected to the outer side of the fixed frame 3, and the eye reaming plate 37 is fixed by the fixed frame 3.

[0032] The reaming assembly includes a secondary reaming head 12, a primary reaming head 11 is fixedly connected to the outer side of the bottom end of the drill rod 1, a secondary reaming head 12 is fixedly connected to the outer side of the middle end of the drill rod 1, and the secondary reaming head 12 is fixedly connected to the first mounting frame 2. The primary reaming head 11 and the secondary reaming head 12 are fixed at the same time through the drill rod 1, so that the three are integrated to increase the lightness of the device.

[0033] The guide assembly includes a guide column 34, and the middle end of the inner side of the fixed frame 3 is rotatably connected to the hydraulic rods 31 corresponding to the two sides, and the top of the hydraulic rod 31 is limited by the fixed frame 3, and the bottom end of the hydraulic rod 31 is rotatably connected to the transmission rod 32, and the transmission rod 32 is limited by the hydraulic rod 31, and the middle end of the transmission rod 32 is rotatably connected to the first connecting rod 33, and the top end of the first connecting rod 33 is rotatably connected to the guide column 34, and the transmission rod 32 and the bottom end of the guide column 34 are connected through the first connecting rod 33, and the top end of the guide column 34 is rotatably connected to the second connecting rod 35 opposite to the two sides, and the bottom end of the second connecting rod 35 is rotatably connected to the limiting rod 36, and the top end of the guide column 34 is connected to the limiting rod 36 through the second connecting rod 35, and the limiting rod 36 is rotatably connected to the top end of the fixed frame 3, and the limiting rod 36 is limited by the fixed frame 3, and the bottom end of the fixed frame 3 is rotatably connected to the first mounting frame 2, and the bottom end of the fixed frame 3 is limited by the first mounting frame 2.

[0034] The outermost width of the top of the secondary reamer 12 is consistent with the outermost width of the bottom of the reamer plate 37, and the outermost width of the bottom of the secondary reamer 12 is consistent with the outermost width of the top of the primary reamer 11. By setting the outermost width of the top of the secondary reamer 12 to be the same as the outermost width of the bottom of the reamer plate 37, and setting the outermost width of the bottom of the secondary reamer 12 to be the same as the outermost width of the top of the primary reamer 11, the primary reamer 11, the secondary reamer 12 and the reamer plate 37 can be seamlessly connected.

[0035] A slide groove having the same diameter as the screw rod 21 is provided inside the external connecting rod 13 connected to the top of the limiting frame 24 . By providing the slide groove inside the external connecting rod 13 at the top of the limiting frame 24 , space for the screw rod 21 to move upward can be provided.

[0036] The second mounting frame 23 is smaller than the first mounting frame 2 and the limiting frame 24 . By reducing the size of the second mounting frame 23 , the lifting stroke of the second mounting frame 23 on the screw rod 21 can be increased.

[0037] Working principle: When the reaming device for oil and gas drilling is used, firstly, the top of the limit frame 24 is connected through the external rod 13, and then the height of the bolt 22 is adjusted according to the size of the drill hole, and the second mounting frame 23 and the inner bottom end of the first transmission frame 25 are driven to rise and fall through the bolt 22, so that the second transmission frame 26 is driven by the first transmission frame 25 to rotate with the connection position of the top of the second transmission frame 26 and the limit frame 24 as the center of the circle, thereby driving the top of the fixing frame 3 to rotate with the connection position of the bottom of the fixing frame 3 and the first mounting frame 2 as a circle, and at the same time driving the rolling reaming plate 37 to rotate synchronously, so as to adjust the inclination angle of the reaming plate 37, thereby adjusting the reaming diameter, and then the device It rotates along with the external rod 13. During the rotation process, the first and second reaming heads 11 and 12 are used to reame the borehole for the first and second time, and then the reaming plate 37 is used to reame the borehole for the third time. After that, when adjusting the drilling angle, the length of the hydraulic rod 31 is independently controlled to be extended and retracted, so that the hydraulic rod 31 uses the transmission rod 32 and the first connecting rod 33 to drive the bottom end of the guide column 34 to adjust the angle with the second connecting rod 35 and the limit rod 36 as the center, thereby controlling the inclination angle of the guide column 34. By setting the outer width of the top end of the guide column 34 to be larger than the outermost width of the top end of the reaming plate 37, the angle is adjusted, thereby achieving the adjustment of the drilling angle.

[0038] The above-mentioned front, back, left, right, top and bottom are all based on the figures in the specification. Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0039] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present invention.

[0040] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A hole reaming device for oil and gas drilling, characterized in that: The invention comprises a drill rod (1), a reaming assembly is arranged on the outer side of the drill rod (1), a first mounting frame (2) is fixedly connected to the top of the drill rod (1), a screw rod (21) is fixedly connected to the top of the first mounting frame (2), a second mounting frame (23) is slidably connected to the middle end of the screw rod (21), a bolt (22) is rotatably connected to the bottom end of the second mounting frame (23), the bolt (22) is threadedly connected to the screw rod (21), a limiting frame (24) is slidably connected to the outer side of the top end of the screw rod (21), and the limiting frame (24) is The top of the limit frame (24) is fixedly connected to an external connecting rod (13); the outer side of the limit frame (24) is rotatably connected to a uniformly distributed second transmission frame (26); the inner side of the middle end of the second transmission frame (26) is rotatably connected to a first transmission frame (25); the first transmission frame (25) is rotatably connected to a second mounting frame (23); the inner side of the bottom end of the second transmission frame (26) is rotatably connected to a fixed frame (3); a guide assembly is provided on the inner side of the fixed frame (3); and an eye reamer (37) is fixedly connected to the outer side of the fixed frame (3).

2. The reaming device for oil and gas drilling according to claim 1, characterized in that: The reaming assembly comprises a secondary reaming head (12); a primary reaming head (11) is fixedly connected to the outer side of the bottom end of the drill rod (1); a secondary reaming head (12) is fixedly connected to the outer side of the middle end of the drill rod (1); and the secondary reaming head (12) is fixedly connected to the first mounting frame (2).

3. The reaming device for oil and gas drilling according to claim 2, characterized in that: The guide assembly comprises a guide column (34), the middle end of the inner side of the fixed frame (3) is rotatably connected to hydraulic rods (31) corresponding to two sides, the bottom end of the hydraulic rod (31) is rotatably connected to a transmission rod (32), the middle end of the transmission rod (32) is rotatably connected to a first connecting rod (33) on the outer side, the top end of the first connecting rod (33) is rotatably connected to the guide column (34), the top end of the guide column (34) is rotatably connected to second connecting rods (35) corresponding to two sides, the bottom end of the second connecting rod (35) is rotatably connected to a limiting rod (36), the limiting rod (36) is rotatably connected to the top end of the fixed frame (3), and the bottom end of the fixed frame (3) is rotatably connected to the first mounting frame (2).

4. The reaming device for oil and gas drilling according to claim 3, characterized in that: The outermost width of the top of the secondary reamer (12) is consistent with the outermost width of the bottom of the reamer plate (37), and the outermost width of the bottom of the secondary reamer (12) is consistent with the outermost width of the top of the primary reamer (11).

5. The reaming device for oil and gas drilling according to claim 4, characterized in that: A sliding groove having the same diameter as the screw rod (21) is provided inside the external connecting rod (13) connected to the top end of the limiting frame (24).

6. The reaming device for oil and gas drilling according to claim 1, characterized in that: The second mounting frame (23) is smaller in size than the first mounting frame (2) and the limiting frame (24).

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