CN103410450A - Double-tubular drill rod - Google Patents
Double-tubular drill rod Download PDFInfo
- Publication number
- CN103410450A CN103410450A CN2013103521557A CN201310352155A CN103410450A CN 103410450 A CN103410450 A CN 103410450A CN 2013103521557 A CN2013103521557 A CN 2013103521557A CN 201310352155 A CN201310352155 A CN 201310352155A CN 103410450 A CN103410450 A CN 103410450A
- Authority
- CN
- China
- Prior art keywords
- tube body
- outer tube
- drill rod
- diameter
- equal
- 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
Images
Landscapes
- Earth Drilling (AREA)
Abstract
The invention relates to a part of a coal mine exploration construction device, in particular to a double-tubular drill rod. The double-tubular drill rod comprises an outer tube body made from a seamless steel tube material, two ends of the outer tube body are connected with a male connector and a female connector respectively, an equal-diameter inner tube body is arranged at the center of the outer tube body, and two ends of an inner hole of the inner tube body are respectively connected with the male connector and the female connector in an equal-diameter mode. The inner tube body is arranged in the outer tube body, so that an inner hole main body of the whole drill rod is of an equal-diameter structure, loss of liquid supply pressure for drilling can be reduced, the requirements for a liquid supply device and the drill rod are reduced, the cost is reduced, a large-diameter gas detection tube can also smoothly pass the smooth and equal-diameter inner hole, the difficulty of detection operation is reduced, and the detection accuracy is improved.
Description
Technical field
The present invention relates to colliery drilling operation part of appliance, specifically a kind of double hose drilling rod.
Background technology
Gas accident is one of principal element threatened Safety of Coal Mine Production.Therefore, further improve the safety assurance ability in colliery, the efficiency that especially draws out methane and monitoring are very important.At present, in the down-hole drilling process, Predicting Gas and methane drawing are main or for prediction and the extraction in aperture, due to the factor complexity that affects pore-forming, after drilling rod is extracted out, easy especially collapse hole, usually can not carry out Measurement accuracy and the methane drawing of gas density, drilling efficiency is not high.Thereby, because detectable concentration is inaccurate and the deficiency of gas drainage amount, cause potential safety hazard.If before drilling rod is extracted out, utilize the drilling rod of hollow to penetrate detector tube, detect, the diameter due to drilling rod and blank area existence changes, and make detector tube be difficult to pass through smoothly drilling rod, thereby operation easier is larger.
In addition, when bit part, need the bore liquid of certain pressure for seasonable, because the drill pipe bore reducing quantity of liquid process is more, the build-up of pressure loss is larger, therefore need to improve liquid supply pressure, requirement to equipment and drilling rod all increases, thereby has improved equipment cost, reduced operational reliability.
Summary of the invention
Technical problem to be solved by this invention is that a kind of be convenient to carry out gas detection, little, reliable, low to the operational outfit requirement double hose drilling rod of boring liquid supply pressure loss are provided.
Double hose drilling rod of the present invention includes the outer tube body of a seamless steel pipe material, the outer tube body two ends are connected with respectively male joint and box joint, described outer tube body center is provided with an isodiametric interior tube body, and the endoporus two ends of interior tube body are respectively with male joint with the box joint is isometrical is connected.
Between described interior tube body outer wall and outer tube body inwall, pass through several support ring fixed supports.
Described interior tube body is the stainless steel tube material.
The present invention is by being arranged on the interior tube body in outer tube body, the endoporus main body that makes whole drilling rod is to wait gauge structure, not only can not reduce the loss of boring liquid supply pressure, the requirement of reduction to liquid supply equipment and drilling rod, reduce costs, and smooth, isometrical endoporus also can make large diameter gas detector tube pass through smoothly, reduced the difficulty that detects operation, improved the accuracy detected.
The accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
The specific embodiment
As shown in the figure, this double hose drilling rod includes the outer tube body 1 of a seamless steel pipe material, the outer tube body two ends are connected with respectively male joint 2 and box joint 3, described outer tube body center is provided with an isodiametric interior tube body 4, and the endoporus two ends of interior tube body are respectively with male joint with the box joint is isometrical is connected.Between interior tube body 4 outer walls and outer tube body 1 inwall, pass through several support ring 5 fixed supports.Interior tube body 4 is the stainless steel tube material.
Claims (3)
1. double hose drilling rod, include the outer tube body (1) of a seamless steel pipe material, the outer tube body two ends are connected with respectively male joint (2) and box joint (3), it is characterized in that: described outer tube body center is provided with an isodiametric interior tube body (4), and the endoporus two ends of interior tube body are respectively with male joint with the box joint is isometrical is connected.
2. double hose drilling rod according to claim 1, is characterized in that: between interior tube body (4) outer wall and outer tube body (1) inwall, pass through several support rings (5) fixed support.
3. double hose drilling rod according to claim 1 and 2, it is characterized in that: interior tube body (4) is the stainless steel tube material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103521557A CN103410450A (en) | 2013-08-13 | 2013-08-13 | Double-tubular drill rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103521557A CN103410450A (en) | 2013-08-13 | 2013-08-13 | Double-tubular drill rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103410450A true CN103410450A (en) | 2013-11-27 |
Family
ID=49603484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013103521557A Pending CN103410450A (en) | 2013-08-13 | 2013-08-13 | Double-tubular drill rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103410450A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103758465A (en) * | 2014-01-22 | 2014-04-30 | 平顶山天安煤业股份有限公司 | Drill rod for coal mine underground gas extraction drill hole protection |
| CN106121549A (en) * | 2016-08-26 | 2016-11-16 | 蒲长晏 | Water saving drilling rod |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3830319A (en) * | 1972-05-16 | 1974-08-20 | Stork Conrad Bv | Drilling apparatus |
| CN2761810Y (en) * | 2004-09-17 | 2006-03-01 | 辽河石油勘探局 | Biwall drill rod for petroleum well drilling |
| CN101655003A (en) * | 2009-09-26 | 2010-02-24 | 姬振河 | Air drilling double-wall drill rod |
| CN203394365U (en) * | 2013-08-13 | 2014-01-15 | 镇江安达煤矿专用设备有限公司 | Double-tube type drill pipe |
-
2013
- 2013-08-13 CN CN2013103521557A patent/CN103410450A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3830319A (en) * | 1972-05-16 | 1974-08-20 | Stork Conrad Bv | Drilling apparatus |
| CN2761810Y (en) * | 2004-09-17 | 2006-03-01 | 辽河石油勘探局 | Biwall drill rod for petroleum well drilling |
| CN101655003A (en) * | 2009-09-26 | 2010-02-24 | 姬振河 | Air drilling double-wall drill rod |
| CN203394365U (en) * | 2013-08-13 | 2014-01-15 | 镇江安达煤矿专用设备有限公司 | Double-tube type drill pipe |
Non-Patent Citations (1)
| Title |
|---|
| 韩广德: "《中国煤炭工业钻探工程学》", 31 December 2000, 煤炭工业出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103758465A (en) * | 2014-01-22 | 2014-04-30 | 平顶山天安煤业股份有限公司 | Drill rod for coal mine underground gas extraction drill hole protection |
| CN106121549A (en) * | 2016-08-26 | 2016-11-16 | 蒲长晏 | Water saving drilling rod |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112097726B (en) | Device and method for measuring expansion deformation of protected layer | |
| CN103411868A (en) | Measuring method for coal seam gas permeability coefficient | |
| CN106401564B (en) | Measuring device for drilling while drilling quick sealing coal seam | |
| CN103644940A (en) | Coal seam gas pressure, gas flow and crustal stress monitoring device and monitoring method | |
| CN108590628A (en) | A kind of device and method of monitoring coal body drilling transformation-temperature-gas flow | |
| CN104179491A (en) | Ultrasonic detecting device and system for downhole rock fracture drilling | |
| CN205743887U (en) | With the measurement apparatus boring fast sealing coal bed drilling | |
| CN103410450A (en) | Double-tubular drill rod | |
| CN203394365U (en) | Double-tube type drill pipe | |
| CN203430573U (en) | Portable coal mine underground gas extraction parameter detection device | |
| CN108798645B (en) | Interior following formula deviational survey device of drilling rod and interior following formula deviational survey system of drilling rod | |
| CN107227954B (en) | Three-zone rapid observation and analysis method for spontaneous combustion of coal in goaf | |
| CN104502002A (en) | Hydraulic force transfer type borehole stressmeter and operation method thereof | |
| CN104265364B (en) | Monitoring determining method for working face goaf lateral coal plastic area width | |
| AU2015296985A1 (en) | Downhole system using packer setting joint and method | |
| CN204359470U (en) | Hydraulic pressure power transmission formula borehole stressmeter instrument | |
| CN204386589U (en) | A kind of device of simulation test boring distortion | |
| CN203347782U (en) | Ultra-deep well down-hole video imaging device | |
| CN215927324U (en) | Horizontal well pumping soluble bridge plug and perforation combined construction process detection device | |
| CN203241177U (en) | Monitoring system of goaf rock coverage stability | |
| CN203685288U (en) | Underground coal mine water exploration drilling water control device | |
| CN103590753A (en) | Drilling tool for detecting temperature in drill hole in real time | |
| CN203308457U (en) | Gas drilling communication relay short section while drilling | |
| CN207776795U (en) | A kind of chambering device structure | |
| CN203161287U (en) | Out-flow gas collecting device for drilling construction |
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: 20131127 |