A square exploration well excavation and casing wall protection device based on the Leroy triangle principle

Abstract

The present invention discloses a square exploration well excavation and joint casing wall protection device based on the Lelo triangle principle, which belongs to the field of square exploration well construction, including a drilling rig vehicle with crawlers, a drilling rig housing is arranged on the base of the drilling rig vehicle, a square exploration well drilling and digging mechanism is arranged inside the drilling rig housing, the top of the square drilling and digging mechanism is connected to the drilling rig housing through a lifting and pressurizing structure, the square drilling and digging mechanism includes a plurality of prefabricated wall protection installation structures connected in sequence from top to bottom, the bottom end of the prefabricated wall protection installation structure is connected to the Lelo triangle drilling rig, and a protrusion hole for the Lelo triangle drilling rig to extend out is arranged at the center of the drilling rig vehicle base. The present invention adopts the above-mentioned square exploration well excavation and joint casing wall protection device based on the Lelo triangle principle to solve the problems of low efficiency of manual construction of square exploration wells, high labor intensity of workers and easy danger.

Description

Technical Field

[0001] The invention relates to the technical field of square exploration well construction, in particular to a square exploration well excavation and joint casing wall protection device based on the Leuleaux triangle principle. Background Art

[0002] Exploration well is a means (method) of geological survey. It is a shallow geological project with a small footprint that is used when the bedrock is buried deep and the exploration trench cannot achieve the geological purpose or is affected by ground conditions and the exploration trench cannot be constructed. Within the scope of the oil and gas field, the wells drilled to determine whether the oil and gas reservoir exists, to delineate the boundaries of the oil and gas reservoir, to conduct industrial evaluation of the oil and gas reservoir, and to obtain the geological data required for oil and gas development are called exploration wells. The classification of exploration wells should be combined with the exploration stage division and exploration procedures in my country, and should also be closely combined with the drilling purpose of oil and gas exploration. The main classifications of exploration wells in my country include geological wells, parameter wells, pre-exploration wells, evaluation wells and hydrological wells. Most exploration wells are circular, but square exploration wells are required under certain conditions.

[0003] In the prior art, square manholes are usually excavated manually, and wall protection is carried out during the excavation process. Concrete is poured on the excavated manhole surface to prevent the manhole from collapsing during the construction process. Manual construction is slow and labor-intensive, which not only has low efficiency in excavating square manholes, but also easily endangers the lives of workers. Summary of the invention

[0004] The purpose of the present invention is to provide a square exploration well excavation and casing wall protection device based on the Leuleaux triangle principle, so as to solve the problems of low efficiency of manual construction of square exploration wells, high labor intensity of workers and easy danger in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides a square exploration well excavation and casing wall protection device based on the Lelo triangle principle, including a drilling rig vehicle with tracks, a control box is arranged on the base of the drilling rig vehicle, a drilling rig housing and a counterweight block for balance are respectively arranged on both sides of the control box, a square exploration well drilling and digging mechanism is arranged inside the drilling rig housing, the top of the square drilling and digging mechanism is connected to the drilling rig housing through a lifting and pressurizing structure, the square drilling and digging mechanism includes a plurality of prefabricated wall protection installation structures connected in sequence from top to bottom, the bottom end of the prefabricated wall protection installation structure is connected to the Lelo triangle drilling rig, and an extension hole for the Lelo triangle drilling rig to extend out is arranged at the center of the bottom end of the drilling rig housing.

[0006] Preferably, the lifting and pressurizing structure includes a lifting plate arranged in the drilling rig housing, a hydraulic cylinder is arranged at the bottom end of the drilling rig housing, the hydraulic rod of the hydraulic cylinder passes through the drilling rig housing and is connected to the top end of the lifting plate, the bottom end of the lifting plate is connected to the prefabricated wall protection mounting structure located at the top through a connecting block, and the front and rear ends and both sides of the lifting plate are connected to the drilling rig housing through sliding components.

[0007] Preferably, the sliding assembly includes a sliding block, the sliding block is arranged on the lifting plate, a sliding groove matched with the sliding block is arranged on the drilling rig housing, and the sliding block is inserted in the sliding groove and is slidably connected with the sliding groove.

[0008] Preferably, the prefabricated wall protection installation structure includes a center seat, and prefabricated wall protection installation components are arranged at the front and rear ends and both sides of the center seat. The prefabricated wall protection installation components include telescopic cylinder 1 and telescopic cylinder 2 arranged on the center seat, the telescopic rod of telescopic cylinder 1 is connected to the fixed frame, the telescopic rod of telescopic cylinder 2 is connected to the movable plate, and rotating motors are arranged at the four corners of the movable plate, and the output shaft of the rotating motor passes through the movable plate and is connected to the screw mounting drill bit.

[0009] Preferably, a pressure plate is slidably arranged in the fixed frame, the pressure plate is connected to the telescopic rod of the telescopic cylinder three located at the top of the fixed frame, and a precast concrete plate is arranged between the pressure plate and the fixed frame.

[0010] Preferably, the precast concrete plate is provided with a screw hole, a screw is provided in the screw hole, and the tail end of the screw is connected to the screw installation drill bit.

[0011] Preferably, the Lelo triangle drilling rig includes a motor cover, the top end of the motor cover is connected to the prefabricated wall protection installation structure located at the bottom layer, and the bottom end of the motor cover is connected to the square frame through a connecting support rod, and a Lelo triangle structure is slidably arranged in the square frame.

[0012] Preferably, a driving motor is arranged in the motor cover, and the output shaft of the driving motor passes through the motor cover and is connected to one end of the universal joint, and the other end of the universal joint is connected to the center of the top end of the Lelo triangle structure through a rotating shaft.

[0013] Preferably, the bottom end of the Lelo triangle structure is connected through a drill bit connecting rod and a Lelo triangle drill bit, and a rotary drilling cutter for drilling square exploration wells is arranged on the drill bit surface of the Lelo triangle drill bit.

[0014] Therefore, the present invention adopts the above-mentioned square exploration well excavation and joint casing wall protection device based on the Leroy triangle principle, which has the following beneficial effects:

[0015] (1) The present invention drives the lifting plate to descend through a hydraulic cylinder, thereby driving the lowermost Leroy triangle drill bit to descend, and the driving motor drives the Leroy triangle drill bit to rotate while descending. The Leroy triangle drill bit is connected to the Leroy triangle structure in the square frame, so that a square exploration well can be excavated. No manual construction is required during excavation, thereby improving excavation efficiency, reducing labor intensity, and reducing the danger of manual excavation.

[0016] (2) The present invention clamps the precast concrete slab in the fixed frame through the pressure plate, so that the precast concrete slab will not easily deviate during the movement process, which is convenient for the subsequent fixation of the precast protective wall; the fixed frame and the movable plate are both moved forward to move the precast concrete slab forward, and the rotating motor drives the screw installation drill bit to rotate, and the screw installation drill bit drives the screw to rotate. The precast concrete slab moves forward while the screws in the screw holes of the precast concrete slab rotate, so that the screws drill into the inner wall of the excavated square exploration well, fix the precast concrete slab, and fix the wall of the square exploration well with a joint casing to prevent the collapse of the square exploration well during the excavation process; and there is no need to fix the joint casing protective wall manually, which greatly improves the construction efficiency.

[0017] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A front view of a device according to an embodiment of the present invention;

[0019] Figure 2 A three-dimensional diagram of a prefabricated protective wall installation structure according to an embodiment of the present invention;

[0020] Figure 3 for Figure 1 A magnified schematic diagram of point A;

[0021] Figure 4 A schematic diagram of a fixed frame structure according to an embodiment of the present invention;

[0022] Figure 5 A three-dimensional diagram of a Lelo triangle drilling rig according to an embodiment of the present invention;

[0023] Figure 6 It is a side view of the device according to an embodiment of the present invention.

[0024] Reference numerals

[0025] 1. Drilling rig vehicle; 2. Drilling rig housing; 3. Base; 4. Control box; 5. Counterweight; 6. Lifting plate; 7. Hydraulic cylinder; 8. Connecting block; 9. Sliding block; 10. Center seat; 11. Telescopic cylinder one; 12. Telescopic cylinder two; 13. Universal joint; 14. Fixed frame; 15. Moving plate; 16. Rotating motor; 17. Pressure plate; 18. Telescopic cylinder three; 19. Precast concrete slab; 20. Screw hole; 21. Motor cover; 22. Driving motor; 23. Connecting support rod; 24. Square frame; 25. Lelo triangle structure; 26. Lelo triangle drill bit. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages disclosed in the embodiments of the present invention clearer, the embodiments of the present invention are further described in detail in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the embodiments of the present invention and are not intended to limit the embodiments of the present invention. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions.

[0027] It should be noted that the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or server that includes a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units that are not explicitly listed or inherent to these processes, methods, products or devices.

[0028] Like reference numerals and letters denote similar items in the following drawings, and thus, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0029] In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the product of the invention is usually placed when in use. They 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 direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0030] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "setting", "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] like Figure 1 , Figure 6As shown, the square exploration well excavation and casing wall protection device based on the Leroy triangle principle of the present invention comprises a drilling rig vehicle 1 with tracks, a control box 4 is arranged on the base 3 of the drilling rig vehicle 1, and a drilling rig housing 2 and a counterweight 5 for balance are arranged on both sides of the control box 4. A square exploration well drilling and excavation mechanism is arranged inside the drilling rig housing 2, and a counterweight 5 is arranged on the base 3 of the drilling rig vehicle 1, and the counterweight 5 is evenly distributed on both sides of the drilling rig housing 2. The counterweight 5 can improve the stability of the entire device during the process of the device excavating a square exploration well.

[0032] The top of the square drilling mechanism is connected to the drilling rig housing through a lifting and pressurizing structure, and the square drilling mechanism includes four groups of prefabricated wall protection installation structures connected in sequence from top to bottom. The bottom end of the prefabricated wall protection installation structure is connected to the Lelo triangle drilling rig, and the center of the bottom end of the drilling rig housing 2 is provided with an extension hole for the Lelo triangle drilling rig to extend out. The lifting and pressurizing structure includes a lifting plate 6 arranged in the drilling rig housing 2, and a hydraulic cylinder 7 is arranged at the bottom end of the drilling rig housing 2. The hydraulic rod of the hydraulic cylinder 7 penetrates the drilling rig housing 2 and is connected to the top of the lifting plate 6. The bottom end of the lifting plate 6 is connected to the prefabricated wall protection installation structure located at the top through a connecting block 8, and the front and rear ends and both sides of the lifting plate 6 are connected to the drilling rig housing 2 through a sliding assembly. The sliding assembly includes a slider 9, which is arranged on the lifting plate 6, and a slide groove adapted to the slider 9 is arranged on the drilling rig housing 2. The slider 9 is inserted in the slide groove and is slidably connected with the slide groove.

[0033] The hydraulic rod of the hydraulic cylinder 7 can drive the lifting plate 6 to descend, thereby driving the prefabricated wall protection installation structure to descend. The descent of the prefabricated wall protection installation structure drives the Lelo triangle drilling rig to extend out of the extension hole and dig downward. At the same time, the hydraulic cylinder 7 can apply thrust to the Lelo triangle drilling rig to enable it to dig stably.

[0034] like Figure 2 , Figure 3 As shown, the prefabricated wall protection installation structure includes a center seat 10, and prefabricated wall protection installation components are provided at the front and rear ends and both sides of the center seat 10. The prefabricated wall protection installation components include a telescopic cylinder 11 and a telescopic cylinder 12 arranged on the center seat 10, the telescopic rod of the telescopic cylinder 11 is connected to the fixed frame 14, and the telescopic rod of the telescopic cylinder 2 12 is connected to the movable plate 15. A rotating motor 16 is provided at the four corners of the movable plate 15, and the output shaft of the rotating motor 16 passes through the movable plate 15 and is connected to the screw mounting drill bit. A pressure plate 17 is slidably provided in the fixed frame 14, and the pressure plate 17 is connected to the telescopic rod of the telescopic cylinder 3 18 located at the top of the fixed frame 14, and a prefabricated concrete plate 19 is provided between the pressure plate 17 and the fixed frame. As shown Figure 4 As shown, a screw hole 20 is provided on the precast concrete slab 19, a screw is provided in the screw hole 20, and the tail end of the screw is connected to the screw installation drill bit.

[0035] The telescopic rod of telescopic cylinder 3 18 drives pressure plate 17 to descend, and both ends of pressure plate 17 slide downward in fixed frame 14. Pressure plate 17 tightens precast concrete plate 19 in fixed frame 14, and the width of the side of precast concrete plate 19 is greater than the width of the side of fixed frame 14. The telescopic rod of telescopic cylinder 1 11 drives fixed frame 14 to move forward, and at the same time, the telescopic rod of telescopic cylinder 2 12 drives mobile plate 15 to move forward, and the rotating motor 16 on the mobile drives the screw installation drill bit to rotate. During the process of precast concrete plate 19 moving forward, the screw installation drill bit drives the screw to rotate, so that the screw is drilled into the inner wall of the excavated square exploration well, and the precast concrete plate 19 is initially fixed. The length of the screw is much greater than the thickness of the precast concrete to achieve stable fixation.

[0036] The Lelo triangle drilling rig includes a motor cover 21, the top of which is connected to the prefabricated wall mounting structure located at the bottom. The bottom of the motor cover 21 is connected to a square frame 24 via a connecting support rod 23, and a Lelo triangle structure 25 is slidably arranged in the square frame 24. A driving motor 22 is arranged in the motor cover 21, and the output shaft of the driving motor 22 passes through the motor cover 21 and is connected to one end of the universal joint 13, and the other end of the universal joint 13 is connected to the center of the top of the Lelo triangle structure 25 via a rotating shaft. Figure 5 As shown, the bottom end of the Lelo triangle structure 25 is connected to the Lelo triangle drill bit 26 through a drill bit connecting rod, and a rotary drilling cutter for square exploration well drilling is arranged on the drill bit surface of the Lelo triangle drill bit 26. The Lelo triangle drill bit 26 has the same structure as the existing rotary drilling bit except for the shape, and the drill bit can store a part of the excavated soil, etc.

[0037] The hydraulic cylinder 7 drives the lifting plate 6 to descend, thereby driving the lowermost Leroy triangle drill bit 26 to descend, and the driving motor 22 drives the Leroy triangle drill bit 26 to rotate while descending, thereby realizing the excavation of the exploration well. Since the Leroy triangle drill bit 26 is connected to the Leroy triangle structure 25 in the square frame 24, the excavation of the square exploration well can be realized.

[0038] When in use, the drilling rig 1 is first moved to the target position, and the hydraulic rod of the hydraulic cylinder 7 can drive the lifting plate 6 to descend, thereby driving a number of central seats 10 connected in sequence to descend, and the descent of the central seat 10 at the bottom drives the motor cover 21 to descend, and then drives the Lelo triangle drill bit 26 to extend from the extension hole, and at the same time, the output shaft of the drive motor 22 in the motor cover 21 rotates, driving the Lelo triangle drill bit 26 to rotate, and excavating a square exploration well downward. After a section of the square exploration well is excavated, the waste soil generated by the excavation is manually removed first, and then the prefabricated wall installation components around the central seat 10 work at the same time, the telescopic rod of the telescopic cylinder 11 drives the fixed frame 14 to move forward, and at the same time, the telescopic rod of the telescopic cylinder 2 12 drives the moving plate 15 to move forward, and the rotating motor 16 on the moving plate drives the screw installation drill bit to rotate, and the screw installation drill bit drives the screw to rotate, so that the screw is drilled into the inner wall of the excavated square exploration well, and the prefabricated concrete slab is initially fixed.

[0039] After the initial fixing of the square well wall is completed, the gap between the expansion concrete and the precast concrete slab is manually sprayed to achieve secondary fixing, and then the wall construction such as steel bar fixing is carried out. When all the precast concrete slabs on the precast wall installation structure are used up, the lifting plate 6 rises, and the new precast concrete slab is fixed on the fixed frame 14 by manual entry from the door reserved in the drilling rig housing 2. The control box 4 is equipped with electrical components such as a controller and a remote control receiver. Various electrical connection structures are electrically connected using existing structures. Construction personnel can work through the remote control device to reduce construction risks.

[0040] Therefore, the present invention adopts the above-mentioned square exploration well excavation and casing wall protection device based on the Reuleaux triangle principle to solve the problems of low efficiency of manual construction of square exploration wells, high labor intensity of workers and easy danger.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that they can still modify or replace the technical solution of the present invention with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the present invention.

Claims

1. A square well excavation and casing wall protection device based on the Leroy triangle principle, characterized by: It comprises a drilling rig vehicle with crawlers, a control box is arranged on the base of the drilling rig vehicle, a drilling rig housing and a counterweight block for balance are arranged on both sides of the control box, a square well exploration drilling mechanism is arranged inside the drilling rig housing, the top of the square drilling mechanism is connected to the drilling rig housing through a lifting and pressurizing structure, the square drilling mechanism comprises a plurality of prefabricated wall protection installation structures connected in sequence from top to bottom, the bottom end of the prefabricated wall protection installation structure is connected to the Lelo triangle drilling rig, and an extension hole for the Lelo triangle drilling rig to extend out is arranged at the center of the bottom end of the drilling rig housing; The prefabricated wall protection installation structure includes a central seat, and the front and rear ends and both sides of the central seat are provided with prefabricated wall protection installation components, and the prefabricated wall protection installation components include a telescopic cylinder 1 and a telescopic cylinder 2 arranged on the central seat, the telescopic rod of the telescopic cylinder 1 is connected to the fixed frame, and the telescopic rod of the telescopic cylinder 2 is connected to the moving plate, and the four corners of the moving plate are provided with a rotating motor, and the output shaft of the rotating motor passes through the moving plate and is connected to the screw mounting drill bit; A pressure plate is slidably arranged in the fixed frame, the pressure plate is connected to the telescopic rod of the telescopic cylinder 3 located at the top of the fixed frame, and a prefabricated concrete plate is arranged between the pressure plate and the fixed frame; The precast concrete plate is provided with a screw hole, in which a screw is provided, and the tail end of the screw is connected with a screw installation drill bit.

2. The square well excavation and casing wall protection device based on the Reuleaux triangle principle according to claim 1 is characterized by: The lifting and pressurizing structure includes a lifting plate arranged in the drilling rig housing, a hydraulic cylinder is arranged at the bottom end of the drilling rig housing, the hydraulic rod of the hydraulic cylinder passes through the drilling rig housing and is connected with the top end of the lifting plate, the bottom end of the lifting plate is connected with the prefabricated wall protection mounting structure located at the top through a connecting block, and the front and rear ends and both sides of the lifting plate are connected to the drilling rig housing through sliding components.

3. The square well excavation and casing wall protection device based on the Reuleaux triangle principle according to claim 2 is characterized by: The sliding assembly comprises a sliding block, which is arranged on the lifting plate, a sliding groove matched with the sliding block is arranged on the drilling rig housing, and the sliding block is inserted in the sliding groove and is slidably connected with the sliding groove.

4. The square well excavation and casing wall protection device based on the Reuleaux triangle principle according to claim 1 is characterized by: The Lelo triangle drilling rig comprises a motor cover, the top end of which is connected to a prefabricated wall protection installation structure located at the lowest layer, and the bottom end of which is connected to a square frame via a connecting support rod, in which a Lelo triangle structure is slidably arranged.

5. The square well excavation and casing wall protection device based on the Reuleaux triangle principle according to claim 4 is characterized by: A driving motor is arranged in the motor cover, and an output shaft of the driving motor passes through the motor cover and is connected to one end of the universal joint, and the other end of the universal joint is connected to the center of the top end of the Lelo triangle structure through a rotating shaft.

6. The square well excavation and casing wall protection device based on the Reuleaux triangle principle according to claim 5 is characterized by: The bottom end of the Lelo triangle structure is connected to the Lelo triangle drill bit through a drill bit connecting rod, and a rotary drilling cutter for drilling a square exploration well is arranged on the drill bit surface of the Lelo triangle drill bit.

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