CN104265187A - Chambering drilling tool - Google Patents
Chambering drilling tool Download PDFInfo
- Publication number
- CN104265187A CN104265187A CN201410454036.7A CN201410454036A CN104265187A CN 104265187 A CN104265187 A CN 104265187A CN 201410454036 A CN201410454036 A CN 201410454036A CN 104265187 A CN104265187 A CN 104265187A
- Authority
- CN
- China
- Prior art keywords
- drilling tool
- wall
- reaming
- tool body
- fraising
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/28—Enlarging drilled holes, e.g. by counterboring
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention relates to a chambering drilling tool which comprises a drilling tool body. Reaming blocks and water guide grooves are arranged on the outer wall of the drilling tool body alternately, protrusions used for reaming are arranged on the outer walls of the reaming blocks, and chamfers are arranged at the connecting positions of the water guide grooves and the outer wall of the drilling tool body. Compared with a straight corner structure of a water passing groove of a traditional drilling tool, according to the chamfer structure of the drilling tool, water flow outside the drilling tool can flow into the drilling tool conveniently, the water guide efficiency is improved, and therefore the reaming and chambering operation of the reaming blocks is facilitated, and drilling quality and efficiency are improved.
Description
Technical field
The present invention relates to geological prospecting apparatus field, particularly relate to the drilling rod of rig.
Background technology
Drilling rod is the critical component in rig, and its end connects drilling tool.As shown in Figure 1, in prior art, the outer wall interval spiral of drilling tool body 1 is provided with fraising block 2 and water-flowing trough 3, the outer wall of fraising block 2 with multiple projection for reaming, for the water outside drilling tool body 1 being passed into the inside of boring body 1 in water-flowing trough 3.Existing water-flowing trough 3 is the structure at straightedge angle 31 with the outer wall junction of drilling tool body 1, and its shortcoming is: the water outside drilling tool body 1 is not easy to import that it is inner, and when causing reaming, discharge is inadequate, and fraising efficiency and quality reduce.
Summary of the invention
The shortcoming that the applicant exists for above-mentioned prior art, carries out studying and improving, provides a kind of borehole-enlarging drilling tool, it greatly improves water guide efficiency and reaming quality.
The technical solution adopted in the present invention is as follows:
A kind of borehole-enlarging drilling tool, comprises drilling tool body, and the outer wall of drilling tool body is arranged at intervals with fraising block and guiding gutter, and the outer wall belt of fraising block has the projection for reaming, and the junction of described guiding gutter and drilling tool body outer wall is with chamfering.
Further improvement as technique scheme:
The angular range of the outer wall tangent plane of the relative drilling tool of fillet surface of described chamfering is 15 degree to 45 degree.
Beneficial effect of the present invention is as follows:
Chamfering structure of the present invention compares the straightedge corner structure of the water-flowing trough of traditional drilling tool, and it is inner that the current be beneficial to outside drilling tool flow into drilling tool, improves water guide efficiency, thus be beneficial to fraising, the ream operation of fraising block, improves drilling quality and efficiency.
Accompanying drawing explanation
Fig. 1 is three-dimensional structure diagram of the present invention.
Fig. 2 is front view of the present invention.
In figure: 1, drilling tool body; 2, ream block; 21, protruding; 3, guiding gutter; 31, straightedge angle; 32, chamfering.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described.
As shown in Figure 2, the borehole-enlarging drilling tool of the present embodiment, comprises drilling tool body 1, and the outer wall of drilling tool body 1 is arranged at intervals with fraising block 2 and guiding gutter 3, the outer wall belt of fraising block 2 has the projection 21 for reaming, and the junction of guiding gutter 3 and drilling tool body 1 outer wall is with chamfering 32.
Chamfering 32 is rounding or chamfer, and during chamfer, the angular range of the outer wall tangent plane of the relative drilling tool 1 of its fillet surface is 15 degree to 45 degree, and for convenience of processing, angle is arranged to 30 degree of the bests.
Chamfering structure of the present invention compares the straightedge corner structure of the water-flowing trough of traditional drilling tool, and it is inner that the current be beneficial to outside drilling tool flow into drilling tool, improves water guide efficiency, thus be beneficial to fraising, the ream operation of fraising block, improves drilling quality and efficiency.
More than describing is explanation of the invention, and be not the restriction to invention, limited range of the present invention is see claim, and when without prejudice to spirit of the present invention, the present invention can do any type of amendment.
Claims (2)
1. a borehole-enlarging drilling tool, comprise drilling tool body (1), the outer wall of drilling tool body (1) is arranged at intervals with fraising block (2) and guiding gutter (3), the outer wall belt of fraising block (2) has the projection (21) for reaming, and it is characterized in that: the junction of described guiding gutter (3) and drilling tool body (1) outer wall is with chamfering (32).
2. according to borehole-enlarging drilling tool described in claim 1, it is characterized in that: the angular range of the outer wall tangent plane of the relative drilling tool of fillet surface (1) of described chamfering (32) is 15 degree to 45 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410454036.7A CN104265187A (en) | 2014-09-05 | 2014-09-05 | Chambering drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410454036.7A CN104265187A (en) | 2014-09-05 | 2014-09-05 | Chambering drilling tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104265187A true CN104265187A (en) | 2015-01-07 |
Family
ID=52156747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410454036.7A Pending CN104265187A (en) | 2014-09-05 | 2014-09-05 | Chambering drilling tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104265187A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105255235A (en) * | 2015-11-27 | 2016-01-20 | 常熟市地大探矿机械厂 | Drilling tool for reaming |
| CN105255326A (en) * | 2015-11-27 | 2016-01-20 | 常熟市地大探矿机械厂 | Drilling tool used for petroleum exploitation |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2635890Y (en) * | 2003-07-03 | 2004-08-25 | 辽河石油勘探局工程技术研究院 | Drilling followed reamer |
| US20100065282A1 (en) * | 2006-05-15 | 2010-03-18 | Baker Hughes Incorporated | Method of drilling out a reaming tool |
| CN201763245U (en) * | 2010-07-12 | 2011-03-16 | 吴宣成 | Geological reamer |
| CN201934025U (en) * | 2011-02-10 | 2011-08-17 | 天合石油集团汇丰石油装备股份有限公司 | Buoy reamer with conical knife seat |
| CN203640626U (en) * | 2013-11-05 | 2014-06-11 | 中国海洋石油总公司 | Down-the-hole drill centering device |
| CN204139984U (en) * | 2014-09-05 | 2015-02-04 | 无锡中地地质装备有限公司 | Borehole-enlarging drilling tool |
-
2014
- 2014-09-05 CN CN201410454036.7A patent/CN104265187A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2635890Y (en) * | 2003-07-03 | 2004-08-25 | 辽河石油勘探局工程技术研究院 | Drilling followed reamer |
| US20100065282A1 (en) * | 2006-05-15 | 2010-03-18 | Baker Hughes Incorporated | Method of drilling out a reaming tool |
| CN201763245U (en) * | 2010-07-12 | 2011-03-16 | 吴宣成 | Geological reamer |
| CN201934025U (en) * | 2011-02-10 | 2011-08-17 | 天合石油集团汇丰石油装备股份有限公司 | Buoy reamer with conical knife seat |
| CN203640626U (en) * | 2013-11-05 | 2014-06-11 | 中国海洋石油总公司 | Down-the-hole drill centering device |
| CN204139984U (en) * | 2014-09-05 | 2015-02-04 | 无锡中地地质装备有限公司 | Borehole-enlarging drilling tool |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105255235A (en) * | 2015-11-27 | 2016-01-20 | 常熟市地大探矿机械厂 | Drilling tool for reaming |
| CN105255326A (en) * | 2015-11-27 | 2016-01-20 | 常熟市地大探矿机械厂 | Drilling tool used for petroleum exploitation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150107 |