Anti-drop type heavy drill pipe

Abstract

The utility model relates to the technical field of heavy drill pipe, a prevent slipping type heavy drill pipe, including first heavy drill pipe, the bottom of first heavy drill pipe is provided with second heavy drill pipe, be provided with the drilling tool joint between first heavy drill pipe and second heavy drill pipe, the outside of first heavy drill pipe, second heavy drill pipe and drilling tool joint is provided with the prevent slipping mechanism of preventing slipping conveniently, first prevent slipping cover sleeve setting is established on first heavy drill pipe, the screw hole is established in the inside of first prevent slipping cover, second prevent slipping cover sleeve setting is established on first heavy drill pipe. The prevent slipping type heavy drill pipe, still establish the limit hole in the installation groove that set up on first heavy drill pipe, second heavy drill pipe and drilling tool joint, and the limit block that the first prevent slipping cover and second prevent slipping cover of outside sleeve setting are fixedly connected in, with the installation groove and limit hole are inserted, in order to realize the prevent slipping connection of first heavy drill pipe, second heavy drill pipe and drilling tool joint.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of heavy drill pipe, concretely to a prevent slipping type heavy drill pipe. BACKGROUND

[0002] The pipe wall thickness of the heavy drill pipe is obviously larger than that of the ordinary drill pipe, which enables it to bear greater pressure and tension and not prone to deformation or rupture in the drilling process. For example, in some deep or ultra-deep well drilling, the thick-walled heavy drill pipe can better cope with the high-pressure environment underground.

[0003] The above-mentioned device does not have the structure of preventing the heavy drill pipe tool joint from slipping off when in use, so that the existing heavy drill pipe is connected by the drill tool joint between the multiple drill pipes when in use, but the thread connection between the multiple drill pipes and the joint will have the risk of slipping and causing slipping after long-term use. Based on the deficiencies of the prior art, the utility model designs a prevent slipping type heavy drill pipe. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies of the prior art, the utility model provides a prevent slipping type heavy drill pipe, which has the advantage of preventing the heavy drill pipe tool joint from slipping off.

[0005] The utility model provides the following technical scheme: a prevent slipping type heavy drill pipe, including first heavy drill pipe, the bottom of first heavy drill pipe is provided with second heavy drill pipe, be provided with drill tool joint between first heavy drill pipe and second heavy drill pipe, the outside of first heavy drill pipe, second heavy drill pipe and drill tool joint is provided with the prevent slipping mechanism of preventing slipping off conveniently;

[0006] The prevent slipping mechanism includes a first anti-slip cover, a threaded hole, a second anti-slip cover, a through hole, a fixed bolt, a limiting block, and a mounting groove. The first anti-slip cover is connected to the first heavy drill pipe. The threaded hole is formed in the inner side of the first anti-slip cover. The second anti-slip cover is connected to the first heavy drill pipe. The through hole is formed in the outer surface of the second anti-slip cover. The fixed bolt is inserted into the through hole. The limiting block is fixedly connected to the inside of the first anti-slip cover and the second anti-slip cover. The mounting groove is formed in the sidewall of the first heavy drill pipe, the second heavy drill pipe, and the drill tool joint. The limiting hole is formed in the inside of the mounting groove.

[0007] As a preferred technical scheme of the utility model, the top end of the first heavy drill pipe and the second heavy drill pipe is fixedly connected with a first threaded connector. The bottom end of the first heavy drill pipe and the second heavy drill pipe is provided with a first threaded connection hole. The bottom end of the second heavy drill pipe is connected with a drill bit.

[0008] As a preferred technical scheme of the utility model, the top end of the drill tool joint is fixedly connected with a second threaded connector, and the bottom end of the drill tool joint is provided with a second threaded connecting hole.

[0009] As a preferred technical scheme of the utility model, the first and second anti-dropping covers are arranged in the connecting position of the first and second heavy drill rods and the drill tool joint in a spliced and sleeved manner, and the fixing bolt is threadedly connected in the threaded hole.

[0010] As a preferred technical scheme of the utility model, the limiting block is clamped in the mounting groove and the limiting hole.

[0011] As a preferred technical scheme of the utility model, the drill bit is threadedly connected in the first threaded connecting hole in the bottom of the second heavy drill rod.

[0012] As a preferred technical scheme of the utility model, the second threaded connector is threadedly connected in the first threaded connecting hole in the bottom of the first heavy drill rod.

[0013] As a preferred technical scheme of the utility model, the first threaded connecting hole in the top end of the second heavy drill rod is threadedly connected in the second threaded connecting hole in the bottom of the drill tool joint.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The anti-dropping heavy drill rod is connected with the first heavy drill rod by screwing the second threaded connector in the top end of the drill tool joint into the first threaded connecting hole, and then the second heavy drill rod with the drill bit installed at the bottom is rotatably installed in the second threaded connecting hole to connect the second heavy drill rod and the drill bit with the first heavy drill rod and the drill tool joint, until the first heavy drill rod, the second heavy drill rod and the drill tool joint are connected, and the mounting grooves and the limiting holes are aligned, at this time, the limiting blocks in the first and second anti-dropping covers are clamped in the mounting grooves and the limiting holes, and the first and second anti-dropping covers are clamped on the outside of the first heavy drill rod, the second heavy drill rod and the drill tool joint, finally, the fixing bolt is screwed into the threaded hole through the through hole to connect and fix the first and second anti-dropping covers, so that the device can prevent the first heavy drill rod, the second heavy drill rod and the drill tool joint from being loosened due to the sliding of the threads. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the heavy drill rod connecting structure of the utility model;

[0018] Figure 3The utility model discloses drill bit and the explosion structure schematic diagram of heavy drill pipe.

[0019] Figure 4 The utility model discloses explosion structure schematic diagram of anti -drop mechanism.

[0020] In the drawing: 1, first heavy drill pipe;101, second heavy drill pipe;102, first threaded connection hole;103, first threaded connector;104, drill bit;2, drill tool joint;201, second threaded connector;202, second threaded connection hole;3, anti -drop mechanism;301, first anti -drop cover;302, threaded hole;303, second anti -drop cover;304, through -hole;305, fixed peg;306, limit block;307, installation groove;308, limit hole. Specific implementation

[0021] The technical scheme in the embodiments of the utility model will be clearly and completely described below with the drawings in the embodiments of the utility model. Apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor fall within the protection scope of the utility model.

[0022] Please refer to Figures 1-4 A kind of anti -drop heavy drill pipe, including first heavy drill pipe 1, the bottom end of first heavy drill pipe 1 is provided with second heavy drill pipe 101, drill tool joint 2 is arranged between first heavy drill pipe 1 and second heavy drill pipe 101, the outer side of first heavy drill pipe 1, second heavy drill pipe 101 and drill tool joint 2 is provided with the anti -drop mechanism 3 of being convenient for preventing slip, drill bit 104 is connected in the first threaded connection hole 102 at the bottom of second heavy drill pipe 101 by screw thread, the first threaded connection hole 102 at the top of second heavy drill pipe 101 is connected in the second threaded connection hole 202 at the bottom of drill tool joint 2 by screw thread, first heavy drill pipe 1 and the top of second heavy drill pipe 101 are fixedly connected with first threaded connector 103, first heavy drill pipe 1 and the bottom of second heavy drill pipe 101 are provided with first threaded connection hole 102, and the bottom of second heavy drill pipe 101 is connected with drill bit 104.

[0023] Please refer to Figure 4, the anti-dropping mechanism 3 comprises a first anti-dropping cover 301, a threaded hole 302, a second anti-dropping cover 303, a through hole 304, a fixing bolt 305, a limiting block 306 and a mounting groove 307, the first anti-dropping cover 301 is sleeved on the first heavy drill rod 1, the threaded hole 302 is arranged on the inner side of the first anti-dropping cover 301, the second anti-dropping cover 303 is sleeved on the first heavy drill rod 1, the through hole 304 is arranged on the outer surface of the second anti-dropping cover 303, the fixing bolt 305 is inserted through the inside of the through hole 304, the limiting block 306 is fixedly connected to the inside of the first anti-dropping cover 301 and the second anti-dropping cover 303, the mounting groove 307 is arranged on the side wall of the first heavy drill rod 1, the second heavy drill rod 101 and the drill tool joint 2, the limiting hole 308 is arranged in the inside of the mounting groove 307, the first anti-dropping cover 301 and the second anti-dropping cover 303 are sleeved and arranged at the connecting position of the first heavy drill rod 1, the second heavy drill rod 101 and the drill tool joint 2, the fixing bolt 305 is screw-connected in the inside of the threaded hole 302, and the limiting block 306 is clamped and arranged in the inside of the mounting groove 307 and the limiting hole 308.

[0024] Please refer to Figure 3 The top end of the drill tool joint 2 is fixedly connected with a second threaded connector 201, and the bottom end of the drill tool joint 2 is provided with a second threaded connecting hole 202, and the second threaded connector 201 is screw-connected in the first threaded connecting hole 102 at the bottom of the first heavy drill rod 1.

[0025] The second threaded connector 201 is arranged to facilitate the fixing and connection of the drill tool joint 2 at the bottom of the first heavy drill rod 1, the second threaded connecting hole 202 is arranged to facilitate the fixing of the second heavy drill rod 101 at the bottom of the drill tool joint 2 by the first threaded connector 103 at the top end of the second heavy drill rod 101, and the first threaded connector 103 at the top end of the first heavy drill rod 1 is arranged to facilitate the connection of more drill rods after being connected with the drill tool joint 2.

[0026] The working principle is that when the anti-dropping type heavy drill rod is used, in the initial state, first, the two ends of the first heavy drill rod 1 and the second heavy drill rod 101 are respectively provided with a first threaded connecting hole 102 and a first threaded connecting head 103, the first threaded connecting hole 102 at the bottom end of the second heavy drill rod 101 is connected with a drill bit 104, meanwhile, the upper and lower ends of the drill tool joint 2 arranged between the first heavy drill rod 1 and the second heavy drill rod 101 are respectively connected with a second threaded connecting head 201 and a second threaded connecting hole 202, and the second threaded connecting hole 202 is connected with the first threaded connecting hole 102 at the bottom end of the first heavy drill rod 1 and the first threaded connecting head 103 at the top end of the second heavy drill rod 101, so as to facilitate drilling operation, and the limiting hole 308 is further arranged in the mounting groove 307 arranged on the first heavy drill rod 1, the second heavy drill rod 101 and the drill tool joint 2, and the limiting block 306 fixedly connected in the first anti-dropping cover 301 and the second anti-dropping cover 303 arranged outside is inserted with the mounting groove 307 and the limiting hole 308, so as to realize the anti-dropping connection of the first heavy drill rod 1, the second heavy drill rod 101 and the drill tool joint 2.

[0027] When it is needed to prevent the connection of the first heavy drill rod 1, the second heavy drill rod 101 and the drill tool joint 2 from being loosened due to wire slipping, first, the second threaded connecting head 201 at the top end of the drill tool joint 2 is screwed into the first threaded connecting hole 102 to be connected with the first heavy drill rod 1, then the second heavy drill rod 101 provided with the drill bit 104 at the bottom end is rotatably installed in the second threaded connecting hole 202 to make the second heavy drill rod 101 and the drill bit 104 connected with the first heavy drill rod 1 and the drill tool joint 2, until the first heavy drill rod 1, the second heavy drill rod 101 and the drill tool joint 2 are connected, and a plurality of groups of mounting grooves 307 and limiting holes 308 are aligned up and down, at this time, the limiting block 306 in the first anti-dropping cover 301 and the second anti-dropping cover 303 is aligned with the mounting groove 307 and the limiting hole 308 and is clamped into the inside, and the first anti-dropping cover 301 and the second anti-dropping cover 303 are wrapped and clamped outside the first heavy drill rod 1, the second heavy drill rod 101 and the drill tool joint 2, finally, the front end of the fixing bolt 305 is passed through the through hole 304 and screwed into the threaded hole 302 to connect and fix the first anti-dropping cover 301 and the second anti-dropping cover 303, so that the device can prevent the connection of the first heavy drill rod 1, the second heavy drill rod 101 and the drill tool joint 2 from being loosened due to wire slipping.

[0028] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A type of anti-dislodgement weighted drill rod, comprising a first weighted drill rod (1), characterized in that: The bottom end of the first heavy drill rod (1) is provided with a second heavy drill rod (101), and a drill joint (2) is provided between the first heavy drill rod (1) and the second heavy drill rod (101). An anti-slip mechanism (3) is sleeved on the outside of the first heavy drill rod (1), the second heavy drill rod (101) and the drill joint (2) to prevent slippage. The anti-detachment mechanism (3) includes a first anti-detachment cover (301), a threaded hole (302), a second anti-detachment cover (303), a through hole (304), a fixing bolt (305), a limiting block (306), a mounting groove (307), and a limiting hole (308). The first anti-detachment cover (301) is sleeved on the first weighted drill rod (1), and the threaded hole (302) is opened on the inner side of the first anti-detachment cover (301). The second anti-detachment cover (303) is sleeved on the first weighted drill rod (1). On the drill rod (1), the through hole (304) is opened on the outer surface of the second anti-dislodgement cover (303), the fixing bolt (305) is inserted through the inside of the through hole (304), the limiting block (306) is fixedly connected to the inside of the first anti-dislodgement cover (301) and the second anti-dislodgement cover (303), the mounting groove (307) is opened on the side wall of the first heavy-duty drill rod (1), the second heavy-duty drill rod (101) and the drill joint (2), and the limiting hole (308) is opened inside the mounting groove (307).

2. The anti-dislodgement weighted drill rod according to claim 1, characterized in that: The first weighted drill rod (1) and the second weighted drill rod (101) are fixedly connected to the top end of the first weighted drill rod (1) and the second weighted drill rod (101) are provided with the first threaded connection hole (102) at the bottom end of the first weighted drill rod (1) and the second weighted drill rod (101) are connected to the bottom end of the second weighted drill rod (101) and the drill bit (104).

3. The anti-dislodgement weighted drill rod according to claim 1, characterized in that: The top end of the drill bit connector (2) is fixedly connected to a second threaded connector (201), and the bottom end of the drill bit connector (2) is provided with a second threaded connection hole (202).

4. The anti-dislodgement weighted drill rod according to claim 1, characterized in that: The first anti-detachment cover (301) and the second anti-detachment cover (303) are spliced ​​and sleeved together at the connection of the first heavy drill rod (1), the second heavy drill rod (101) and the drill joint (2), and the fixing bolt (305) is threaded into the inside of the threaded hole (302).

5. The anti-dislodgement weighted drill rod according to claim 1, characterized in that: The limiting block (306) is snapped into the inside of the mounting groove (307) and the limiting hole (308).

6. The anti-dislodgement weighted drill rod according to claim 2, characterized in that: The drill bit (104) is threaded into the first threaded connection hole (102) at the bottom of the second weighted drill rod (101).

7. The anti-dislodgement weighted drill rod according to claim 3, characterized in that: The second threaded connector (201) is threaded into the first threaded connection hole (102) at the bottom of the first weighted drill rod (1).

8. A weighted drill rod with anti-detachment properties according to claim 2, characterized in that: The first threaded connection hole (102) at the top of the second weighted drill rod (101) is threaded into the second threaded connection hole (202) at the bottom of the drill joint (2).

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