CN102383751A - Dual-pipe drilling slag removing method and device - Google Patents
Dual-pipe drilling slag removing method and device Download PDFInfo
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- CN102383751A CN102383751A CN201110200503XA CN201110200503A CN102383751A CN 102383751 A CN102383751 A CN 102383751A CN 201110200503X A CN201110200503X A CN 201110200503XA CN 201110200503 A CN201110200503 A CN 201110200503A CN 102383751 A CN102383751 A CN 102383751A
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Abstract
The invention discloses a dual-pipe drilling slag removing method and device. The slag removing method comprises the following steps: when a dual-pipe drilling tool carries out the drilling operation, alternately injecting gas and water slag removing mediums through the same path; and discharging the drilling cuttings out of a drill hole. Through the dual-pipe drilling slag removing method, the drilling cuttings can be effectively removed; the flow rate of the slag removing mediums is increased as different slag removing mediums are injected at intervals; replacement between the drilling tool and the drilling cuttings reaches the best state; and the drilling efficiency is improved, and the service life of the drilling tool is prolonged. The dual-pipe drilling slag removing device has reasonable design, can effectively improve the drilling efficiency and realize alternate injection of high-pressure gas and high-pressure water, increase the flow rate of the slag removing mediums, thoroughly and quickly discharge the drilling cuttings out of the drill hole, reduce frictional resistance of an outer wall of a sleeve and prolong the service life of the drilling tool.
Description
Technical field
The invention belongs to two-tube drilling technique, concrete relate to a kind of two-tube Slagoff method of boring and slag-draining device that is adopted of creeping into that be used for.
Background technology
In the probing field; Sand ovum gravel ground drilling and forming hole is quite difficult; Conventional direct circulation is crept into, the deslagging difficulty, and matter is changed ability; Particularly at the deep foundation ditch inclination angle at the anchor bolt construction of 5 °～30 ° of scopes, domestic existing equipment and technology can't be accomplished the work of creeping into of this type of stratum technical requirements basically.Countries such as America and Europe adopt in recent years two-tubely creeps into simultaneously, the unit head rotation, and top high-frequency percussion drilling tool, the method for direct circulation deslagging is constructed, and can accomplish the construction on this type of stratum basically, but has the problem of deslagging difficulty.Two-tube reason of creeping into the problem of direct circulation deslagging difficulty occurring comprises: the water permeability of sand ovum factory site layer is high, and the drill water loss is big, directly reduces the flow velocity of recirculated water between the inner and outer pipes, reduces the deslagging ability simultaneously; In the deslagging process, the mill resistance of sand gravel between big tubule more reduces the flow velocity of recirculated water, makes endoporus produce negative pressure; Often causing can't deslagging, also the inner and outer pipes stuck phenomenon possibly occur, if handle untimely; Drilling tool creeps into by force, drilling tool with bore quarrel and do not carry out matter and change, just make creep into the stratum that will pass become more closely knit; Difficulty is crept in increasing, reduces drill tool life, thereby improves more the construction equipment performance requirement; In order to make the eliminating of the interior brill quarrel of pipe clean, to be convenient to continue to creep into, the drilling construction personnel generally adopt and spur interior pipe, several times, wash boring quarrel about in the of tens times, so also consumed a large amount of industrial waters, but deslagging is often not thorough yet, can not satisfy the requirement of fast footage.
Summary of the invention
The invention provides a kind of two-tube Slagoff method that creeps into that can promote effectively that drilling cuttings is got rid of; Its interval through different deslagging media is injected; Improved the flow velocity of deslagging medium, can make the displacement of drilling tool and drilling cuttings reach optimum state, improved drilling efficiency and prolong application life of drilling tool.
The present invention also provides a kind of reasonable in design, two-tube slag-draining device that creeps into that can effectively improve drilling efficiency; Its interval that can realize gases at high pressure and water under high pressure is injected; Improve the flow velocity of deslagging medium; Drilling cuttings is thoroughly got rid of outside the boring fast, reduced sleeve outer wall frictional resistance, prolong the application life of drilling tool simultaneously.
The technical scheme that the present invention adopted is following:
A kind of two-tube Slagoff method that creeps into is characterized in that said Slagoff method comprises: adopt the two-tube drilling tool that creeps into when carrying out bore operation, the injection of going the same way of carrying out gas, water deslagging medium that replaces is discharged drilling cuttings outside the boring.
In the specific embodiment, said Slagoff method further comprises: on the two-tube sleeve pipe that creeps into drilling tool, connect gas and water spacer intake line, this sleeve pipe of injection of gas and water alternate intervals are set.
In one embodiment, said gas, water deslagging medium are gases at high pressure and water under high pressure.
In another embodiment, said gas, water deslagging medium are the injection of equal-volume, constant duration.
Again in the embodiment; Said Slagoff method further comprises: adopt a high-pressure pump and a high-pressure hydraulic pump; This high-pressure pump and high-pressure hydraulic pump all are communicated with a medium pipeline; Said high-pressure pump and high-pressure hydraulic pump equal-volume, constant duration in this medium mixed pipe line, feed gas, water deslagging medium, this medium pipeline is communicated with in the said two-tube shell clearance that creeps into drilling tool.
The present invention also provides a kind of two-tube slag-draining device that creeps into, and it is characterized in that said slag-draining device comprises a medium pipeline, and an end of this medium pipeline connects the two-tube drilling tool that creeps into, and the other end connects gas, water deslagging medium Alternating Transportation device.
In one embodiment, said medium pipeline is the resistance to compression pipeline, and its other end connects a two-way valve is set, this two-way valve respectively with high-pressure pump and high-pressure hydraulic pump control connection.
In one embodiment, an end of said medium pipeline creeps into the sleeve pipe of drilling tool and the deslagging medium injection channel between the drilling rod links to each other with two-tube.
This two-tube Slagoff method that creeps into and slag-draining device are through creeping in the pipeline two-tube; Let deslagging medium gas, water go the same way, alternately and the continual deslagging that injects because the compression ratio of the gas that injects is bigger, gases at high pressure as the deslagging medium can be instantaneous give foot of hole with impact force; Just can improve the flow velocity of recirculated water at once; Drilling cuttings and boring mud are thoroughly discharged outside the boring fast, eliminate and repeat to creep into defective, make the displacement of drilling tool and drilling cuttings reach optimum state simultaneously.The frictional resistance that this has also reduced sleeve outer wall accordingly creeps into needed pressure and moment of torsion and also decreases, and has also prolonged the application life of drilling tool simultaneously accordingly.The injection of deslagging medium gases at high pressure and water under high pressure be alternately not intermittently; The injection volume ratio of the two can be for identical; The cycle of alternately injecting can automatically adjust according to actual conditions; The injection length of each gases at high pressure or water under high pressure can also specifically rationally be adjusted according to drilling tool specification and drilling depth for higher within 0.1 second-2 seconds.
Beneficial effect of the present invention is; This two-tube Slagoff method that creeps into can effectively promote drilling cuttings to get rid of, and its interval through different deslagging media is injected, and has improved the flow velocity of deslagging medium; Can make the displacement of drilling tool and drilling cuttings reach optimum state, improve drilling efficiency and prolong application life of drilling tool.This two-tube slag-draining device that creeps into is reasonable in design, can effectively improve drilling efficiency; Its interval that can realize gases at high pressure and water under high pressure is injected, and improves the flow velocity of deslagging medium, thoroughly gets rid of outside the boring fast drilling cuttings; Reduce sleeve outer wall frictional resistance, prolong the application life of drilling tool simultaneously.
Below in conjunction with the accompanying drawing and the specific embodiment the present invention is done further elaboration.
Description of drawings
Fig. 1 is the connection sketch map of slag-draining device in the specific embodiment of the invention.
The specific embodiment
Slagoff method system that this is two-tube to creep into adopts the two-tube drilling tool that creeps into when carrying out bore operation, injections of going the same way of carrying out gas, water deslagging medium that replaces, with drilling cuttings discharge hole outside.Be specially and adopt a high-pressure pump and a high-pressure hydraulic pump; This high-pressure pump and high-pressure hydraulic pump all are communicated with a medium pipeline; High-pressure pump and high-pressure hydraulic pump equal-volume, constant duration in this medium mixed pipe line, feed gas, water deslagging medium, this medium pipeline is communicated with in the two-tube shell clearance that creeps into drilling tool.
As shown in Figure 1, this two-tube slag-draining device that creeps into mainly comprises high-pressure pump 11, high-pressure hydraulic pump 12, medium pipeline 14, and an end of this medium pipeline connects the two-tube drilling tool 15 that creeps into, and the other end connects gas, water deslagging medium Alternating Transportation device.Medium pipeline 14 is the resistance to compression pipeline, and its other end connects a two-way valve 13 is set, this two-way valve respectively with high-pressure pump and high-pressure hydraulic pump control connection.One end of medium pipeline creeps into the sleeve pipe of drilling tool and the deslagging medium injection channel between the drilling rod links to each other with two-tube.
This two-tube Slagoff method that creeps into and slag-draining device compared with prior art can directly be saved 30～50% industrial water and electricity consumption, can improve 30% production efficiency in the unit interval, also can reduce about 30～40% the power of construction equipment.
Claims (8)
1. two-tube Slagoff method that creeps into is characterized in that said Slagoff method comprises: adopt the two-tube drilling tool that creeps into when carrying out bore operation, the injection of going the same way of carrying out gas, water deslagging medium that replaces is discharged drilling cuttings outside the boring.
2. the two-tube Slagoff method that creeps into according to claim 1 is characterized in that said Slagoff method further comprises: on the two-tube sleeve pipe that creeps into drilling tool, connect gas and water spacer intake line, this sleeve pipe of injection of gas and water alternate intervals are set.
3. the two-tube Slagoff method that creeps into according to claim 1 is characterized in that said gas, water deslagging medium are gases at high pressure and water under high pressure.
4. the two-tube Slagoff method that creeps into according to claim 1 is characterized in that said gas, water deslagging medium are the injection of equal-volume, constant duration.
5. the two-tube Slagoff method that creeps into according to claim 1; It is characterized in that said Slagoff method further comprises: adopt a high-pressure pump and a high-pressure hydraulic pump; This high-pressure pump and high-pressure hydraulic pump all are communicated with a medium pipeline; Said high-pressure pump and high-pressure hydraulic pump equal-volume, constant duration in this medium mixed pipe line, feed gas, water deslagging medium, this medium pipeline is communicated with in the said two-tube shell clearance that creeps into drilling tool.
6. a two-tube slag-draining device that creeps into is characterized in that said slag-draining device comprises a medium pipeline, and an end of this medium pipeline connects the two-tube drilling tool that creeps into, and the other end connects gas, water deslagging medium Alternating Transportation device.
7. the two-tube slag-draining device that creeps into according to claim 6 is characterized in that said medium pipeline is the resistance to compression pipeline, and its other end connects a two-way valve is set, this two-way valve respectively with high-pressure pump and high-pressure hydraulic pump control connection.
8. the two-tube slag-draining device that creeps into according to claim 6, an end that it is characterized in that said medium pipeline creeps into the sleeve pipe of drilling tool and the deslagging medium injection channel between the drilling rod links to each other with two-tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110200503XA CN102383751A (en) | 2011-07-18 | 2011-07-18 | Dual-pipe drilling slag removing method and device |
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| CN201110200503XA CN102383751A (en) | 2011-07-18 | 2011-07-18 | Dual-pipe drilling slag removing method and device |
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| CN201110200503XA Pending CN102383751A (en) | 2011-07-18 | 2011-07-18 | Dual-pipe drilling slag removing method and device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106592588A (en) * | 2016-11-22 | 2017-04-26 | 成都四海岩土工程有限公司 | Bit-expanded anchor rope construction method by using mechanical hole expansion |
| CN114753787A (en) * | 2022-05-06 | 2022-07-15 | 咸宁职业技术学院 | A clear hole device in anchor rod hole for construction |
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| US3525395A (en) * | 1968-12-26 | 1970-08-25 | Mobil Oil Corp | Alternate gas and water flood process for recovering oil |
| GB2074629A (en) * | 1980-04-24 | 1981-11-04 | Salzgitter Maschinen Ag | Drilling rod system for a sinking drilling tool |
| CN1077515A (en) * | 1993-04-28 | 1993-10-20 | 胜利石油管理局浅海工程处 | Basic combined type production platform of jar and job practices |
| CN1087966A (en) * | 1992-12-08 | 1994-06-15 | 王豪 | Dual-tube driller |
| US20060180306A1 (en) * | 2003-05-12 | 2006-08-17 | Stone Herbert L | Method for improved vertical sweep of oil reservervoirs |
| CN1995691A (en) * | 2006-12-18 | 2007-07-11 | 辽河石油勘探局 | Low-pressure drilling technology using double-wall drill pipe |
| CN101070755A (en) * | 2006-11-24 | 2007-11-14 | 中国海洋石油总公司 | Pressure-control well-drilling method and device based two gradients |
| WO2010060134A1 (en) * | 2008-11-25 | 2010-06-03 | Camstar Nominees Pty Ltd | Drill string |
| CN201539215U (en) * | 2009-08-28 | 2010-08-04 | 大庆油田有限责任公司 | CO2 displacement concentric double-tube injection technique tubing string |
| CN202132007U (en) * | 2011-07-20 | 2012-02-01 | 陶德明 | Slag discharging device for dual-pipe drilling hole |
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2011
- 2011-07-18 CN CN201110200503XA patent/CN102383751A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3525395A (en) * | 1968-12-26 | 1970-08-25 | Mobil Oil Corp | Alternate gas and water flood process for recovering oil |
| GB2074629A (en) * | 1980-04-24 | 1981-11-04 | Salzgitter Maschinen Ag | Drilling rod system for a sinking drilling tool |
| CN1087966A (en) * | 1992-12-08 | 1994-06-15 | 王豪 | Dual-tube driller |
| CN1077515A (en) * | 1993-04-28 | 1993-10-20 | 胜利石油管理局浅海工程处 | Basic combined type production platform of jar and job practices |
| US20060180306A1 (en) * | 2003-05-12 | 2006-08-17 | Stone Herbert L | Method for improved vertical sweep of oil reservervoirs |
| CN101070755A (en) * | 2006-11-24 | 2007-11-14 | 中国海洋石油总公司 | Pressure-control well-drilling method and device based two gradients |
| CN1995691A (en) * | 2006-12-18 | 2007-07-11 | 辽河石油勘探局 | Low-pressure drilling technology using double-wall drill pipe |
| WO2010060134A1 (en) * | 2008-11-25 | 2010-06-03 | Camstar Nominees Pty Ltd | Drill string |
| CN201539215U (en) * | 2009-08-28 | 2010-08-04 | 大庆油田有限责任公司 | CO2 displacement concentric double-tube injection technique tubing string |
| CN202132007U (en) * | 2011-07-20 | 2012-02-01 | 陶德明 | Slag discharging device for dual-pipe drilling hole |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106592588A (en) * | 2016-11-22 | 2017-04-26 | 成都四海岩土工程有限公司 | Bit-expanded anchor rope construction method by using mechanical hole expansion |
| CN114753787A (en) * | 2022-05-06 | 2022-07-15 | 咸宁职业技术学院 | A clear hole device in anchor rod hole for construction |
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Application publication date: 20120321 |