A drill rod guiding anti-buried device for horizontal hole and inclined hole drilling

Abstract

A drill rod guide anti-buried device for horizontal hole and inclined hole drilling relates to the field of drilling equipment. The drill rod guide anti-buried device for horizontal hole and inclined hole drilling comprises a guide tube body and at least one plug block, the outer wall of one end of the guide tube body has a chamfered surface and a plurality of arc-shaped protrusions, the chamfered surface and the arc-shaped protrusions are arranged in sequence along the axial direction of the guide tube body, and an arc-shaped groove is formed between adjacent arc-shaped protrusions, the chamfered surface and the arc-shaped protrusions are respectively provided with a plurality of slots extending along the axial direction of the guide tube body, and the guide tube body is respectively provided with alloy blocks connected to each slot; the plug block comprises a holder detachably connected to the inner wall of the guide tube body and two blocks symmetrically arranged on both sides of the holder, and the outer walls of the two blocks are respectively fitted with the inner wall of the guide tube body. The drill rod guide anti-buried device for horizontal hole and inclined hole drilling provided by the present application overcomes the problems of drilling hole sagging, bending, drilling tool stuck, and drilling buried, which are easy to occur in horizontal hole and inclined hole drilling.

Description

Technical Field

[0001] The present application relates to the field of drilling devices, and in particular to a drill rod guiding anti-buried device for drilling horizontal holes and inclined holes. Background Art

[0002] In geological exploration and drilling work, the arrangement of horizontal holes and inclined holes has become a necessary and commonly used method under specific geological and engineering conditions. Due to the actual situation of uneven rock hardness and rock integrity in the drilling holes, and the influence of the gravity of the drill tool itself, the drilling axis is prone to sag and bend during the drilling of horizontal holes and inclined holes, affecting the quality of the drilling holes and failing to meet the design angle, orientation and depth requirements. In addition, it is easy to cause block drop, drill jam and drill burial accidents in the hole. Therefore, compared with vertical holes, the difficulty of accident handling and the degree of drilling technology sophistication are significantly increased.

[0003] In order to solve the above defects, rope drilling tools are often used at present. Since the outer diameter of the drill pipe is basically the same as the hole diameter, it plays a role in keeping straight and guiding. However, the friction between the drill pipe and the hole wall will greatly increase the wear. At the same time, the increase in drilling resistance requires the addition of larger power equipment for deep holes. In addition, the unit needs to be specially equipped with a full set of rope drilling tools, drill pipes and supporting tools. When drilling deep holes, rope drilling tools and drill pipes of various calibers are also required, which is very inconvenient to use. Summary of the invention

[0004] The purpose of the present application is to provide a drill rod guiding and anti-buried device for horizontal hole and inclined hole drilling, which can ensure the diameter, straightness and guidance of the drill hole to avoid the occurrence of buried drill.

[0005] The embodiment of the present application is implemented as follows:

[0006] The embodiment of the present application provides a drill pipe guiding anti-buried device for drilling horizontal holes and inclined holes, which includes a guide cylinder body and at least one plug block for detachably connecting with a drill pipe female joint and a drill pipe male joint at two ends respectively. The outer wall of one end of the guide cylinder body has a chamfered surface and a plurality of arc-shaped protrusions arranged at intervals along the circumference of the guide cylinder body. The chamfered surface and the arc-shaped protrusions are arranged in sequence along the axial direction of the guide cylinder body, and arc-shaped grooves are formed between adjacent arc-shaped protrusions. The chamfered surface and the arc-shaped protrusions are respectively provided with a plurality of slots extending along the axial direction of the guide cylinder body, and the guide cylinder body is respectively provided with alloy blocks connected to each slot; the plug block includes a holder detachably connected to the inner wall of the guide cylinder body and two blocks symmetrically arranged on both sides of the holder, and the outer walls of the two blocks are respectively in contact with the inner wall of the guide cylinder body.

[0007] In some optional implementation schemes, the number of the plug-in blocks is more than two, and the distance between the two card blocks of each plug-in block gradually decreases.

[0008] In some optional implementation schemes, the number of the plug-in blocks is more than two, and the lengths of the two card blocks of each plug-in block gradually decrease.

[0009] In some optional embodiments, the alloy block is flush with the chamfered surface and the outer wall of the arc-shaped protrusion, respectively.

[0010] In some optional implementation schemes, the chamfered surface and the slot on the arc-shaped protrusion are connected in a one-to-one correspondence, and the chamfered surface and the alloy blocks arranged in the slot on the arc-shaped protrusion are connected in a one-to-one correspondence.

[0011] The beneficial effects of the present application are as follows: the drill pipe guiding anti-buried device for horizontal hole and inclined hole drilling provided in the present embodiment comprises a guide cylinder body and at least one plug block, the outer wall of one end of the guide cylinder body has a chamfered surface and a plurality of arc-shaped protrusions arranged at intervals along the circumference of the guide cylinder body, the chamfered surface and the arc-shaped protrusions are arranged in sequence along the axial direction of the guide cylinder body, and an arc-shaped groove is formed between adjacent arc-shaped protrusions, the chamfered surface and the arc-shaped protrusions are respectively provided with a plurality of slots extending along the axial direction of the guide cylinder body, and the guide cylinder body is respectively provided with alloy blocks connected to each slot; the plug block comprises a holder detachably connected to the inner wall of the guide cylinder body and two blocks symmetrically arranged on both sides of the holder, and the outer walls of the two blocks are respectively fitted with the inner wall of the guide cylinder body. The drill pipe guiding anti-buried device for horizontal hole and inclined hole drilling provided in the present embodiment can ensure the diameter, straightness and guidance of the borehole to avoid the occurrence of buried drilling. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 A cross-sectional view from a first perspective of a drill rod guiding anti-embedding device for horizontal hole and inclined hole drilling provided in an embodiment of the present application;

[0014] Figure 2 For along Figure 1 Section view of the section line at AA;

[0015] Figure 3 A schematic structural diagram from a second perspective of a drill rod guiding anti-embedding device for horizontal hole and inclined hole drilling provided in an embodiment of the present application.

[0016] In the figure: 100, guide cylinder body; 110, chamfered inclined surface; 120, arc-shaped protrusion; 121, slot; 130, arc-shaped groove; 140, alloy block; 200, insert block; 210, holder; 220, block. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0018] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0019] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0020] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0021] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0022] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0023] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0024] The features and performance of the drill rod guiding anti-buried device for horizontal hole and inclined hole drilling of the present application are further described in detail below in conjunction with the embodiments.

[0025] like Figure 1 , Figure 2 and Figure 3 As shown, the embodiment of the present application provides a drill pipe guide anti-buried device for horizontal hole and inclined hole drilling, which includes a guide cylinder body 100 and an insert block 200 for detachably connecting with a drill pipe female joint and a drill pipe male joint respectively at two ends. The outer wall of one end of the guide cylinder body 100 has a chamfered inclined surface 110 and four arc-shaped protrusions 120 arranged at intervals along the circumference of the guide cylinder body 100. The chamfered inclined surface 110 and the arc-shaped protrusions 120 are arranged in sequence along the axial direction of the guide cylinder body 100, and arc-shaped grooves 130 are formed between adjacent arc-shaped protrusions 120. The chamfered surface 110 and the arc-shaped protrusion 120 are respectively provided with three slots 121 extending axially along the guide tube body 100. The guide tube body 100 is respectively provided with alloy blocks 140 connected to each slot 121. The alloy blocks 140 are respectively flush with the outer walls of the chamfered surface 110 and the arc-shaped protrusion 120; the insert block 200 includes a holder 210 detachably connected to the inner wall of the guide tube body 100 by threads and two blocks 220 symmetrically arranged on both sides of the holder 210. The outer walls of the two blocks 220 are respectively fitted with the inner wall of the guide tube body 100.

[0026] When the drill rod guiding anti-buried device for horizontal hole and inclined hole drilling provided in this embodiment is used, the insert block 200 is inserted into the end of the guide cylinder body 100 away from the chamfered inclined surface 110 and rotated, so that the clamping seat 210 is connected to the inner wall of the guide cylinder body 100 through a thread, and the two symmetrically arranged clamping blocks 220 connected to the clamping seat 210 are directed to the end away from the guide cylinder body 100 away from the chamfered inclined surface 110, and then the two ends of the guide cylinder body 100 are detachably connected to the drill rod female joint and the drill rod male joint respectively. Specifically, the end of the guide cylinder body 100 provided with the clamping seat 210 is aligned with the hanging and lifting device of the drill rod female joint. Insert it into the upper groove, then align the male joint end of the other drill pipe and insert it into the end of the guide cylinder body 100 away from the holder 210, and then refer to the original drilling procedure to thread the drill pipe male joint and the drill pipe female joint to form an installation mode in which one end of the guide cylinder body 100 is inserted into the groove of the drill pipe female joint and the other end is sleeved on the outside of the drill pipe male joint. Then, drill is sequentially drilled according to the above method. During drilling, one of the above-mentioned drill pipe guide anti-buried devices for drilling horizontal holes and inclined holes is installed on each drill pipe. When drilling inclined holes with small top angles, one of the above-mentioned drill pipe guide anti-buried devices for drilling horizontal holes and inclined holes can be installed at appropriate intervals of one drill pipe.

[0027] The drill rod guiding anti-buried device for horizontal hole and inclined hole drilling provided in the present embodiment is connected with alloy blocks 140 through slots 121 on the chamfered inclined surface 110 and the arc-shaped protrusion 120 of the outer wall of the guide cylinder body 100, respectively. It can greatly improve the wear resistance of the guide cylinder body 100, improve the drilling diameter protection and drill rod straightening effect of the guide cylinder body 100, and extrude, drill and grind the fallen blocks in the hole to avoid blockage by the fragments. At the same time, the arc-shaped grooves 130 formed between adjacent arc-shaped protrusions 120 serve as a drilling circulating fluid channel and a channel for discharging rock fragments and slag generated by the falling blocks during drilling. At the same time, by continuously installing the drill rod guiding and anti-buried device for horizontal hole and inclined hole drilling provided by this embodiment on the full-hole drill rod joint, the straightening and centering rotation of each drill rod can be maintained during drilling, and the inclination of the entire drill rod column in the entire hole is guaranteed. In addition, the above-mentioned extrusion and crushing of the fallen blocks in the hole, the circulation of the drilling circulating fluid and the discharge of the fallen blocks during drilling are combined, and finally the comprehensive effects of maintaining the diameter, maintaining the straightness, guiding and preventing the buried drilling of the drill rod for horizontal hole and inclined hole drilling are achieved.

[0028] In other optional embodiments, the number of the plug blocks 200 is more than two, and the spacing between the two clamping blocks 220 of each plug block 200 gradually decreases, and the length of the two clamping blocks 220 of each plug block 200 gradually decreases. Therefore, according to the drill pipe configuration selection needs, different plug blocks 200 are adjusted and replaced accordingly to maintain a reasonable match with the groove width and height dimensions on the drill pipe female joints of different specifications, and maintain a reasonable match with the outer diameter dimensions of the drill pipe male and female joints of different specifications, so as to be suitable for ordinary drill pipes of different specifications (such as drill pipes of common specifications such as diameters of Φ42, Φ50 or Φ60).

[0029] In other optional embodiments, the chamfered surface 110 and the slot 121 on the arc-shaped protrusion 120 are connected one-to-one, and the chamfered surface 110 and the alloy block 140 arranged in the slot 121 on the arc-shaped protrusion 120 are connected one-to-one, so that the chamfered surface 110 and the alloy block 140 in the slot 121 on the arc-shaped protrusion 120 are connected to form a whole, thereby increasing the crushing force on the drilled rock and improving the diameter maintenance, straightness maintenance and guiding effect of the drill rod for drilling horizontal holes and inclined holes during drilling.

[0030] The embodiments described above are part of the embodiments of the present application, rather than all of the embodiments. The detailed description of the embodiments of the present application is not intended to limit the scope of the present application for protection, but merely represents the selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

Claims

1. A drill rod guiding anti-buried device for horizontal hole and inclined hole drilling, characterized in that: The invention comprises a guide cylinder body and at least one plug block, the outer wall of one end of which is respectively used for detachably connecting with a female joint of a drill pipe and a male joint of a drill pipe, the outer wall of one end of the guide cylinder body is provided with a chamfered surface and a plurality of arc-shaped protrusions arranged at intervals along the circumference of the guide cylinder body, the chamfered surface and the arc-shaped protrusions are arranged in sequence along the axial direction of the guide cylinder body, and an arc-shaped groove is formed between adjacent arc-shaped protrusions, the chamfered surface and the arc-shaped protrusions are respectively provided with a plurality of slots extending along the axial direction of the guide cylinder body, and the guide cylinder body is respectively provided with slots connected to each of the slots The insert block comprises a holder detachably connected to the inner wall of the guide cylinder body and two holders symmetrically arranged on both sides of the holder, the outer walls of the two holders are respectively fitted with the inner wall of the guide cylinder body, the number of the insert blocks is more than two, and the spacing between the two holders of each insert block gradually decreases, and the length of the two holders of each insert block gradually decreases; the chamfered surface and the slot on the arc-shaped protrusion are connected one-to-one, and the chamfered surface and the alloy blocks arranged in the slot on the arc-shaped protrusion are connected one-to-one.

2. The drill rod guiding anti-buried device for horizontal hole and inclined hole drilling according to claim 1, characterized in that: The alloy block is flush with the chamfered surface and the outer wall of the arc-shaped protrusion respectively.

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