CN203097718U - Powerful reaming drill - Google Patents
Powerful reaming drill Download PDFInfo
- Publication number
- CN203097718U CN203097718U CN 201320054896 CN201320054896U CN203097718U CN 203097718 U CN203097718 U CN 203097718U CN 201320054896 CN201320054896 CN 201320054896 CN 201320054896 U CN201320054896 U CN 201320054896U CN 203097718 U CN203097718 U CN 203097718U
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- China
- Prior art keywords
- drill bit
- drill
- powerful
- drilling rod
- hole
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- Expired - Lifetime
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Abstract
The utility model discloses a powerful reaming drill which comprises a drill rod and a main drill bit placed at the lower end of the drill rod. A non-through side hole is formed in the side face of the drill rod, an assistant drill bit is clamped inside the side hole, a hydraulic oil cylinder is arranged between the tail portion of the assistant drill bit and the bottom of the side hole, meanwhile, a through hole which communicates upwards is formed in the position of the axis of the drill rod, and a hydraulic pipe of the hydraulic oil cylinder extends upwards to be out of the drill rod through the through hole. Preferably, a control part of the hydraulic pipe is connected with a programmable logic controller (PLC). The powerful reaming drill has the advantages that reaming is achieved through one drill, and the assistant drill bit can not be broken easily.
Description
Technical field
The present invention relates to the oil drilling tools technical field, especially relate to a kind of powerful borehole-enlarging drilling tool.
Background technology
In oil exploitation, drilling tool is indispensable.Though this drilling tool is various informative, in the face of comparatively hard ground condition the time,, progressively increases the diameter of this drill bit afterwards again, thereby realize progressively reaming how by use the less drill bit of diameter to get out aperture in advance.Obviously, such mode is comparatively loaded down with trivial details and need to use the drilling tool that has the different drill bit of diameter in a large number.Though, also there is the mode that secondary drill bit is set by drilling rod side to come reaming at drilling tool,, this pair drill bit carries out rigid the contact with the earth, is easy to cause fractureing of this pair drill bit.
Summary of the invention
The purpose of this invention is to provide a kind of powerful borehole-enlarging drilling tool, it has and can carry out reaming by a drilling tool, and the secondary drill bit of this drill bit characteristics of frangibility not.
The technical solution adopted in the present invention is: powerful borehole-enlarging drilling tool, the main drill bit that comprises drilling rod and be positioned at this drilling rod lower end, described drilling rod side is provided with the side opening of non-perforation, card has secondary drill bit in this side opening, be provided with hydraulic jack between the afterbody of this pair drill bit and the bottom of this side opening, simultaneously, the place, axle center on this drilling rod is provided with the through hole that upwards connects, and the hydraulic tube of this hydraulic jack protrudes upward this drilling rod by this through hole.
The control assembly of described hydraulic tube is connected with PLC.
The present invention compares the advantage that is had with prior art: carry out reaming by a drilling tool, and this its secondary drill bit frangibility not.The drilling rod side of powerful borehole-enlarging drilling tool of the present invention is provided with secondary drill bit, and this pair drill bit is used for reaming.Simultaneously, the afterbody of this pair drill bit is connected with hydraulic jack, thereby the length that head stretched out that should the pair drill bit can be regulated.That is, only need the extension elongation of secondary drill bit that should the brute force borehole-enlarging drilling tool progressively to increase, can get out the hole that diameter progressively increases in hard big ground by a powerful borehole-enlarging drilling tool.And when the earth hardness was excessive, the length of stretching out of this pair drill bit can be taked repeatedly in a small amount the mode of (being that the amplitude that increases of each extension elongation is less), had avoided secondary drill bit to stretch out the situation that is easy to fracture when long.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples:
Fig. 1 is that the master of embodiments of the invention looks sectional view.
Among the figure: 10, drilling rod, 11, main drill bit, 12, side opening, 13, through hole; 20, secondary drill bit; 30, hydraulic jack, 31, hydraulic tube; 40, PLC.
The specific embodiment
Embodiment sees shown in Figure 1: powerful borehole-enlarging drilling tool, the main drill bit 11 that comprises drilling rod 10 and be positioned at these drilling rod 10 lower ends.More particularly, these drilling rod 10 sides are provided with the side opening 12 of non-perforation.So-called non-perforation refers to that this side opening 12 has the bottom rather than through the both sides of this drilling rod 10.Card has secondary drill bit 20 in this side opening 12.So-called secondary drill bit 20 is stuck in this side opening 12, and the head that refers to this pair drill bit 20 stretches out outside this side opening 12, afterbody is positioned at this side opening 12, and secondary drill bit 20 can not deviate from this side opening 12.Be provided with hydraulic jack 30 between the bottom of the afterbody of this pair drill bit 20 and this side opening 12.That is, after these fluid oil cylinder 30 actions, can control this pair drill bit 20 outwardly directed length.Simultaneously, the place, axle center on this drilling rod 10 is provided with the through hole 13 that upwards connects, and the hydraulic tube 31 of this hydraulic jack 30 protrudes upward this drilling rod 10 by this through hole 13.That is, the operating state of this fluid oil cylinder 30 can be controlled outside.Further, in order to reach the purpose of automatic control, the control assembly of this hydraulic tube 31 is connected with PLC40.
Operating principle of the present invention: the extension elongation of secondary drill bit 20 is determining the pore size of should the brute force borehole-enlarging drilling tool being holed.Like this, at the beginning of boring, these fluid oil cylinder 30 these pair drill bits 20 of control stretch out less length, such as stretching out 2mm.Along with the carrying out of boring procedure, progressively the extension elongation of secondary drill bit 20 is increased by this fluid oil cylinder 30, such as the once then 2mm or more that stretch out of every control, certainly, the process of this boring can be followed mentioning repeatedly of this brute force borehole-enlarging drilling tool and descend more.Simultaneously, when the earth hardness was big, these pair drill bit 20 each extension elongations that increase can be less, such as stretch out 0.5mm at every turn more.
What deserves to be explained is that this PLC40 can set the torque information that this pair drill bit 20 is subjected to, thereby this PLC40 adjusts the extension elongation of this pair drill bit 20 voluntarily according to setting and detected torque information.Such as, when the earth was comparatively hard, the moment of torsion that secondary drill bit 20 need overcome was bigger, and it is less that then this PLC40 controls these pair drill bit 20 each length of stretching out more.Certainly, so also reduced the probability that should pair drill bit 20 fractures.
The above only is the preferred embodiments of the present invention; be not so limit claim of the present invention; every equivalent structure or equivalent flow process conversion that utilizes manual of the present invention and accompanying drawing content to be done; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (2)
1. powerful borehole-enlarging drilling tool, the main drill bit (11) that comprises drilling rod (10) and be positioned at this drilling rod (10) lower end, it is characterized in that: described drilling rod (10) side is provided with the side opening (12) of non-perforation, card has secondary drill bit (20) in this side opening (12), be provided with hydraulic jack (30) between the bottom of the afterbody of this pair drill bit (20) and this side opening (12), simultaneously, place, axle center on this drilling rod (10) is provided with the through hole (13) that upwards connects, and the hydraulic tube (31) of this hydraulic jack (30) protrudes upward this drilling rod (10) by this through hole (13).
2. powerful borehole-enlarging drilling tool according to claim 1 is characterized in that: the control assembly of described hydraulic tube (31) is connected with PLC(40).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320054896 CN203097718U (en) | 2013-01-31 | 2013-01-31 | Powerful reaming drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320054896 CN203097718U (en) | 2013-01-31 | 2013-01-31 | Powerful reaming drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203097718U true CN203097718U (en) | 2013-07-31 |
Family
ID=48849128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320054896 Expired - Lifetime CN203097718U (en) | 2013-01-31 | 2013-01-31 | Powerful reaming drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203097718U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103615196A (en) * | 2013-12-12 | 2014-03-05 | 西南石油大学 | Plunger type significantly-variable-diameter reaming-while-drilling tool |
| CN104343390A (en) * | 2014-09-18 | 2015-02-11 | 平顶山市安泰华矿用安全设备制造有限公司 | Water conservancy reaming system |
| CN117307042A (en) * | 2023-10-10 | 2023-12-29 | 山东科技大学 | Mining hydraulic reducing reamer bit and use method thereof |
-
2013
- 2013-01-31 CN CN 201320054896 patent/CN203097718U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103615196A (en) * | 2013-12-12 | 2014-03-05 | 西南石油大学 | Plunger type significantly-variable-diameter reaming-while-drilling tool |
| CN104343390A (en) * | 2014-09-18 | 2015-02-11 | 平顶山市安泰华矿用安全设备制造有限公司 | Water conservancy reaming system |
| CN104343390B (en) * | 2014-09-18 | 2016-08-17 | 平顶山市安泰华矿用安全设备制造有限公司 | A kind of water conservancy reaming system |
| CN117307042A (en) * | 2023-10-10 | 2023-12-29 | 山东科技大学 | Mining hydraulic reducing reamer bit and use method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130731 |
|
| CX01 | Expiry of patent term |