CN219412468U - Sectional semi-closed pipe drilling tool - Google Patents

Sectional semi-closed pipe drilling tool Download PDF

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Publication number
CN219412468U
CN219412468U CN202320489357.5U CN202320489357U CN219412468U CN 219412468 U CN219412468 U CN 219412468U CN 202320489357 U CN202320489357 U CN 202320489357U CN 219412468 U CN219412468 U CN 219412468U
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CN
China
Prior art keywords
reamer
pipe
semi
drilling tool
threads
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Active
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CN202320489357.5U
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Chinese (zh)
Inventor
周曰虎
王付伟
张士友
李习文
王洪江
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Haikou Marine Geological Survey Center Of China Geological Survey
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Haikou Marine Geological Survey Center Of China Geological Survey
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Priority to CN202320489357.5U priority Critical patent/CN219412468U/en
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Abstract

A sectional semi-closed pipe drilling tool comprises a reducing joint, an outer pipe upper section, an upper reamer, an outer pipe middle section, an upper semi-closed inner pipe, a connecting nipple, a lower semi-closed inner pipe, a lower reamer, a drill bit, a clamping spring seat, a clamping spring and an outer pipe lower section; the inner tube of the drilling tool is a circular tube formed by combining two semicircular tubes, so that the original state of the core after entering the semi-closed tube can be guaranteed to the greatest extent, the damage to the properties such as core layer arrangement and the like in the drilling process is reduced, meanwhile, the core can be directly detached and taken out by adopting the semi-closed tube structure, and the core taking time in the drilling tool is effectively reduced.

Description

Sectional semi-closed pipe drilling tool
Technical Field
The utility model relates to the technical field of geological exploration, in particular to a segmented semi-tubular drilling tool.
Background
In the exploration and development of underground energy resources such as petroleum, natural gas, geothermal energy and the like, in the dam foundation exploration work of newly-built highways, railway roadbeds, bridge foundation exploration, reservoir dams and river dams, drilling tools are indispensable tools, the length of the existing common drilling tools is short, the single-pass accessible size is small, when stratum difficult to core such as a broken layer is drilled, stratum disturbance is large, the original state of a rock core is damaged to a certain extent, and coring is difficult; therefore, a segmented semi-tubular drill with large single-pass accessibility and convenient and quick coring is needed in the industry.
Disclosure of Invention
The utility model aims to provide a sectional semi-closed pipe drilling tool, which has large single-pass accessible size, is convenient and quick to core and can ensure the original state of a rock core to the greatest extent when performing exploration operation.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a sectional semi-closed pipe drilling tool comprises a reducing joint, an outer pipe upper section, an upper reamer, an outer pipe middle section, an upper semi-closed inner pipe, a connecting nipple, a lower semi-closed inner pipe, a lower reamer, a drill bit, a clamping spring seat, a clamping spring and an outer pipe lower section; external threads with different nominal diameters are arranged at the lower part of the reducer union, and the upper ends of the outer pipe upper section and the upper semi-closed inner pipe are sequentially connected with the reducer union through threads; the upper end of the upper reamer is connected with the lower end of the upper section of the outer pipe through threads, and the lower end of the upper reamer is connected with the middle section of the outer pipe through threads; the lower end of the outer tube middle section is connected with the upper end of the lower reamer through threads; the lower end of the lower reamer is connected with a drill bit through threads; the horizontal sections of the upper half inner tube and the lower half inner tube are round formed by enclosing two semi-circles; the lower end of the upper half inner pipe is connected with the upper end of the connecting nipple through threads; the upper end of the lower inner closing pipe is connected with the lower end of the connecting nipple through threads; the lower end of the lower half inner tube is provided with a clamping spring seat, and the clamping spring seat contains a clamping spring; the outer surface of the upper reamer is provided with upper reamer spiral teeth; the outer surface of the lower reamer is provided with lower reamer spiral teeth; the upper reamer helical teeth and the lower reamer helical teeth are in a helical trend shape along the center line of the drilling tool; an upper stabilizing ring is arranged on the outer wall of the upper half inner tube; the outer wall of the lower inner tube is provided with a lower stabilizing ring.
According to the sectional semi-closed pipe drilling tool, the openings are formed in one sides of the upper stabilizing ring and the lower stabilizing ring, and the upper stabilizing ring and the lower stabilizing ring are not closed.
In the sectional semi-closed pipe drilling tool, the upper end screw thread of the upper semi-closed inner pipe is an internal screw thread, and the lower end is an external screw thread; the upper end screw thread of the lower half inner tube is an external screw thread.
Advantageous effects
The utility model has the following advantages:
according to the sectional semi-closed pipe drilling tool, the inner pipe of the drilling tool is a circular pipe formed by combining two semicircular pipes, so that the original state of a core after entering the semi-closed pipe can be guaranteed to the greatest extent, the damage to the properties of the core layer and the like in the drilling process is reduced, meanwhile, the core can be directly disassembled and taken out by adopting the semi-closed pipe structure, and the core taking time in the drilling tool is effectively reduced.
Drawings
FIG. 1 is a schematic cross-sectional view of the present utility model;
FIG. 2 is a cross-sectional view in the A-A direction;
FIG. 3 is a B-B cross-sectional view;
the reference numerals in the drawings are respectively as follows: 1. the reducer union comprises a reducer union, an outer pipe upper joint, an upper stabilizing ring, an upper reamer, a screw tooth, an outer pipe middle joint, an upper half inner pipe, a connecting nipple, a lower half inner pipe, a lower stabilizing ring, an upper reamer, a lower reamer, a screw tooth, a lower reamer, a drill bit, a drill seat, a clamping spring seat, an outer pipe lower joint and a lower outer pipe.
Detailed Description
The utility model is further described below with reference to the drawings and examples.
When the sectional semi-pipe-closing drilling tool is installed, firstly, the two sections of semi-pipe-closing inner pipe 7 and the lower semi-pipe-closing inner pipe 9 are combined, the upper stabilizing ring 3 and the lower stabilizing ring 10 are respectively worn, the upper stabilizing ring and the lower stabilizing ring are connected with the connecting nipple 8 and the reducer union 1, then the clamping spring seat 14 is installed, and after the installation is finished, the outer pipe is sequentially installed according to the sequence of the upper outer pipe section 2, the upper reamer 4, the middle outer pipe section 6, the lower reamer 12, the lower outer pipe section 15 and the drill bit 13.
According to the sectional semi-closed pipe drilling tool, the upper stabilizing ring 3 and the lower stabilizing ring 10 are made of high-toughness and high-elasticity materials, so that the installation is convenient.
The utility model relates to a segmented semi-closed pipe drilling tool which is mainly applicable to unconsolidated strata, incomplete broken layers, coral and other strata. When the drilling tool is used, the drill rod is sequentially arranged above the drilling tool.
The utility model relates to a segmented semi-closed pipe drilling tool, wherein a protrusion with a hexagonal outline is arranged in the middle of a connecting nipple 8 and is used for clamping the connecting nipple 8 by using a tool.

Claims (3)

1. A sectioned semi-tubular drilling tool is characterized in that: the device comprises a reducing joint (1), an outer pipe upper joint (2), an upper reamer (4), an outer pipe middle joint (6), an upper half inner pipe (7), a connecting nipple (8), a lower half inner pipe (9), a lower reamer (12), a drill bit (13), a clamp spring seat (14) and an outer pipe lower joint (15); external threads with different nominal diameters are arranged at the lower part of the reducer union (1), and the upper ends of the outer pipe upper section (2) and the upper semi-closed inner pipe (7) are sequentially connected with the reducer union (1) through threads; the upper end of the upper reamer (4) is connected with the lower end of the outer tube upper section (2) through threads, and the lower end of the upper reamer (4) is connected with the outer tube middle section (6) through threads; the lower end of the outer tube middle joint (6) is connected with the upper end of the lower reamer (12) through threads; the lower end of the lower reamer (12) is connected with the lower outer pipe joint (15) through threads; a drill bit (13) is arranged at the lower end of the outer pipe lower joint (15); the horizontal sections of the upper half inner tube (7) and the lower half inner tube (9) are round formed by enclosing two semi-circles; the lower end of the upper half inner pipe (7) is connected with the upper end of the connecting nipple (8) through threads; the upper end of the lower inner closing pipe (9) is connected with the lower end of the connecting nipple (8) through threads; the lower end of the lower half inner tube (9) is provided with a snap spring seat (14); an upper reamer helical tooth (5) is arranged on the outer surface of the upper reamer (4); the outer surface of the under reamer (12) is provided with under reamer helical teeth (11); the upper reamer helical teeth (5) and the lower reamer helical teeth (11) are in a helical trend shape along the center line of the drilling tool; an upper stabilizing ring (3) is arranged on the outer wall of the upper half inner tube (7); the outer wall of the lower half inner tube (9) is provided with a lower stabilizing ring (10).
2. The segmented semi-tubular drilling tool of claim 1, wherein: openings are formed in one side of the upper stabilizing ring (3) and one side of the lower stabilizing ring (10), and the upper stabilizing ring and the lower stabilizing ring are not closed in a circular shape.
3. The segmented semi-tubular drilling tool of claim 2, wherein: the upper end screw thread of the upper half inner tube (7) is an internal screw thread, and the lower end is an external screw thread; the upper end screw thread of the lower half inner tube (9) is an external screw thread.
CN202320489357.5U 2023-03-15 2023-03-15 Sectional semi-closed pipe drilling tool Active CN219412468U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202320489357.5U CN219412468U (en) 2023-03-15 2023-03-15 Sectional semi-closed pipe drilling tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202320489357.5U CN219412468U (en) 2023-03-15 2023-03-15 Sectional semi-closed pipe drilling tool

Publications (1)

Publication Number Publication Date
CN219412468U true CN219412468U (en) 2023-07-25

Family

ID=87239664

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202320489357.5U Active CN219412468U (en) 2023-03-15 2023-03-15 Sectional semi-closed pipe drilling tool

Country Status (1)

Country Link
CN (1) CN219412468U (en)

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