CN101294480A - Device for drilling miniature borehole on ultra-short radius of coiled tubing - Google Patents
Device for drilling miniature borehole on ultra-short radius of coiled tubing Download PDFInfo
- Publication number
- CN101294480A CN101294480A CNA2008101143204A CN200810114320A CN101294480A CN 101294480 A CN101294480 A CN 101294480A CN A2008101143204 A CNA2008101143204 A CN A2008101143204A CN 200810114320 A CN200810114320 A CN 200810114320A CN 101294480 A CN101294480 A CN 101294480A
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- joint
- transmission shaft
- drive axle
- coiled tubing
- flexible drive
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Abstract
The invention discloses a device for drilling minimal borehole on one coiled tubing side with ultra-short radius, which comprises a guider, a flexible transmission shaft, a driving motor and a bit. The flexible transmission shaft is arranged inside the guider, the bit is arranged at the output end of the flexible transmission shaft, and the driving motor is arranged at the input end of the flexible transmission shaft. The flexible transmission shaft includes more than three transmission sections which are connected with each other through ball heads, and the transmission sections are in surface contact with the ball heads. The invention increases the axial area of the flexible transmission shaft by using the ball heads to connect the transmission sections of the flexible transmission shaft and designing the surface contact between the transmission sections and the ball heads, thus prolonging the service time of the flexible transmission shaft and improving the device stability.
Description
Technical field
The present invention relates to a kind of device that is used to improve the small well of sidetracking ultra-short radius of the rate of oil and gas recovery.
Background technology
Super short radial horizontal well is meant a kind of horizontal well that radius of curvature is shorter than conventional short turning radius horizontal well, also is referred to as super short radius horizontal well (Ultrashort Radius Radial Well).The well system of finishing this horizontal well is referred to as high energy jet drilling system (Radial Drilling Systems), is called for short RDS.
At present, generally adopt both at home and abroad and in sleeve pipe, implement sidetracking, this technology is in old well, take out flow string earlier, be lowered to power motor, flexible shaft and junk bit tool combinations with oil pipe again, ground pumps into the liquid of certain pressure, and CD-ROM drive motor rotates at a high speed, motor drives drill bit and rotates at a high speed, and the milling sleeve pipe is windowed.Flexible shaft transmission joint adopts pin to connect in this technology, because all having passed to, the axial force that flexible shaft bears in sidetracking technology connects on the pin of transmission joint, pin should bear moment of torsion and bear axial force again, causes down-hole accident so be easy to generate the pin inefficacy.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of device of drilling miniature borehole on ultra-short radius of coiled tubing, and this device can improve the stability and the application life of device greatly.
In order to address the above problem, the device that the invention provides a kind of drilling miniature borehole on ultra-short radius of coiled tubing comprises: coiled tubing, guider, flexible drive axle, CD-ROM drive motor and drill bit; Flexible drive axle is installed in the guider, and drill bit is arranged on the output of described flexible drive axle, and CD-ROM drive motor is arranged on the input of described flexible drive axle; Described flexible drive axle comprises the transmission joint that three joints are above, is connected by bulb between the described transmission joint, contacts for face between transmission joint and the bulb.
Preferably, described transmission joint comprises top joint, the bottom joint that connects described drill bit that connects described CD-ROM drive motor and is arranged on the above middle segmentum intercalaris of at least one joint between top joint and the bottom joint, the top save with middle segmentum intercalaris between, between the middle segmentum intercalaris and middle segmentum intercalaris be connected by described bulb between the bottom is saved.
The present invention connects the transmission joint of flexible drive axle by adopting bulb, and contact being designed to face between transmission joint and the bulb, thereby has increased the axial area of flexible drive axle, prolongs the application life of flexible drive axle, has improved the stability of installing greatly.It is little to adopt coiled tubing as power transmission shaft a whole set of equipment well site to be taken up an area of, and is more suitable in restricted area of ground condition or offshore platform operation, and has reduced demand to equipment and manpower, can significantly save drilling cost.Because continuously pipe does not need to make up a joint, thus in the process of making a trip circulating mud continuously, minimizing trip time and duty cycle have improved the safety of the speed that makes a trip and operation, avoid the blowout and the lock of tool drilling that may cause because of making up a joint.Simultaneously coiled tubing can built-in cable, improve signal with boring transmission, realize well logging during completely.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the structural representation of flexible drive axle among Fig. 1;
Fig. 3 is the bulb schematic diagram.
The specific embodiment
As shown in Figure 1, 2, the present invention includes: coiled tubing 1, guider 4, flexible drive axle 5, CD-ROM drive motor 3 and drill bit 6; Flexible drive axle 5 is installed in the guider 4, and drill bit 6 is arranged on the output of flexible drive axle 5, and CD-ROM drive motor 3 is arranged on the input of flexible drive axle 5; Flexible drive axle 5 comprises the transmission joint that three joints are above, is connected by bulb 7 between the transmission joint, contacts for face between transmission joint and the bulb 7.Oil flow in the coiled tubing 1 is rotated CD-ROM drive motor 3, thereby drives flexible drive axle 5 rotations.
The concrete set-up mode of flexible drive axle 5 is shown in Fig. 2,3, above-mentioned transmission joint comprises top joint 53, the bottom joint 51 that connects drill bit 6 that connects CD-ROM drive motor 3 and is arranged on top joint 53 and bottom and saves middle segmentum intercalaris 52 more than at least one joint between 51, between top joint 53 and the middle segmentum intercalaris 52, between the middle segmentum intercalaris 53 and middle segmentum intercalaris 53 be connected by bulb 7 between the bottom saves 51, and the mode that the face that is contacts is connected.Bulb 7 links to each other with bottom joint 51, middle segmentum intercalaris 52 and top joint 53 by pin 54.Like this, when flexible drive axle 5 rotates, because the power that applies is to be dispersed on the entire contact surface, the therefore intensity of flexible drive axle 5 greatly, thus prolonged application life of flexible drive axle 5, and improved the stability of device.
In sum; being preferred embodiment of the present invention only below, is not to be used to limit protection scope of the present invention, therefore; all any modifications of being done within the spirit and principles in the present invention, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (2)
1, a kind of device of drilling miniature borehole on ultra-short radius of coiled tubing is characterized in that, comprising: coiled tubing, guider, flexible drive axle, CD-ROM drive motor and drill bit; Flexible drive axle is installed in the guider, and drill bit is arranged on the output of described flexible drive axle, and CD-ROM drive motor is arranged on the input of described flexible drive axle; Described flexible drive axle comprises the transmission joint that three joints are above, is connected by bulb between the described transmission joint, contacts for face between transmission joint and the bulb.
2, device as claimed in claim 1, it is characterized in that, described transmission joint comprises top joint, the bottom joint that connects described drill bit that connects described CD-ROM drive motor and is arranged on the above middle segmentum intercalaris of at least one joint between top joint and the bottom joint, the top save with middle segmentum intercalaris between, between the middle segmentum intercalaris and middle segmentum intercalaris be connected by described bulb between the bottom is saved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101143204A CN101294480B (en) | 2008-06-03 | 2008-06-03 | Device for drilling miniature borehole on ultra-short radius of coiled tubing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101143204A CN101294480B (en) | 2008-06-03 | 2008-06-03 | Device for drilling miniature borehole on ultra-short radius of coiled tubing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101294480A true CN101294480A (en) | 2008-10-29 |
| CN101294480B CN101294480B (en) | 2012-08-15 |
Family
ID=40064985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101143204A Expired - Fee Related CN101294480B (en) | 2008-06-03 | 2008-06-03 | Device for drilling miniature borehole on ultra-short radius of coiled tubing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101294480B (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101824966A (en) * | 2010-05-11 | 2010-09-08 | 上海宏睿油气田径向井技术服务有限公司 | Device for jetting ultrashort radius horizontal hole by using high-pressure water |
| CN102400671A (en) * | 2010-09-07 | 2012-04-04 | 中国石油天然气集团公司 | Flexible connection device of logging-while-drilling instrument |
| CN103061674A (en) * | 2012-11-29 | 2013-04-24 | 中国石油集团长城钻探工程有限公司 | Underwell oil layer driller |
| CN101748970B (en) * | 2009-12-15 | 2013-09-04 | 中国石油集团长城钻探工程有限公司 | Ultra-short radius radial drilling tool system |
| CN103437703A (en) * | 2013-07-22 | 2013-12-11 | 中国石油天然气股份有限公司 | Oil-water well oil layer ground control downhole horizontal drilling device |
| CN105134073A (en) * | 2015-08-21 | 2015-12-09 | 中煤科工集团西安研究院有限公司 | Radial horizontal well bottom steering device and construction method thereof |
| CN105625945A (en) * | 2014-11-06 | 2016-06-01 | 中国石油化工股份有限公司 | Drilling device used for low permeability reservoir and drilling method of drilling device |
| CN106522865A (en) * | 2016-11-21 | 2017-03-22 | 中国石油集团长城钻探工程有限公司 | Flexible shaft fishing tool for radial horizontal drilling |
| CN109577863A (en) * | 2018-12-25 | 2019-04-05 | 北京大德广源石油技术服务有限公司 | Ultra-short radius sidetracking orients specific purpose tool |
| CN113216868A (en) * | 2021-05-11 | 2021-08-06 | 中煤科工集团西安研究院有限公司 | One-way bending drilling tool and punching, cave-making and coal-drawing method |
| WO2022105791A1 (en) * | 2020-11-18 | 2022-05-27 | 万晓跃 | Flexible electrical connection drill string |
| WO2024017357A1 (en) * | 2022-07-20 | 2024-01-25 | 蓝土地能源技术有限公司 | Microhole drilling apparatus |
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| US3891032A (en) * | 1974-03-29 | 1975-06-24 | Camco Inc | Apparatus for installing and removing flow control devices |
| US5538092A (en) * | 1994-10-27 | 1996-07-23 | Ingersoll-Rand Company | Flexible drill pipe |
| CN2278757Y (en) * | 1996-12-26 | 1998-04-15 | 中原石油勘探局钻井工艺技术研究院 | Flexible pipe drilling tool for super-short radium horizontal drilling |
| TW405111B (en) * | 1997-09-24 | 2000-09-11 | Faircrest Holdings Pty Ltd | Improved drive element |
| CN2466335Y (en) * | 2000-10-15 | 2001-12-19 | 张书明 | Flexible drilling tool |
| CN2830764Y (en) * | 2005-10-10 | 2006-10-25 | 天津市油田采油成套设备有限公司 | Special spherical universal joint of screw pump |
-
2008
- 2008-06-03 CN CN2008101143204A patent/CN101294480B/en not_active Expired - Fee Related
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101748970B (en) * | 2009-12-15 | 2013-09-04 | 中国石油集团长城钻探工程有限公司 | Ultra-short radius radial drilling tool system |
| CN101824966A (en) * | 2010-05-11 | 2010-09-08 | 上海宏睿油气田径向井技术服务有限公司 | Device for jetting ultrashort radius horizontal hole by using high-pressure water |
| CN102400671A (en) * | 2010-09-07 | 2012-04-04 | 中国石油天然气集团公司 | Flexible connection device of logging-while-drilling instrument |
| CN102400671B (en) * | 2010-09-07 | 2014-06-04 | 中国石油天然气集团公司 | Flexible connection device of logging-while-drilling instrument |
| CN103061674A (en) * | 2012-11-29 | 2013-04-24 | 中国石油集团长城钻探工程有限公司 | Underwell oil layer driller |
| CN103437703B (en) * | 2013-07-22 | 2016-01-20 | 中国石油天然气股份有限公司 | Horizontal drilling device under the control well of a kind of oil-water well oil layer ground |
| CN103437703A (en) * | 2013-07-22 | 2013-12-11 | 中国石油天然气股份有限公司 | Oil-water well oil layer ground control downhole horizontal drilling device |
| CN105625945A (en) * | 2014-11-06 | 2016-06-01 | 中国石油化工股份有限公司 | Drilling device used for low permeability reservoir and drilling method of drilling device |
| CN105625945B (en) * | 2014-11-06 | 2018-01-09 | 中国石油化工股份有限公司 | Drilling equipment and its boring method for low permeability reservoir |
| CN105134073A (en) * | 2015-08-21 | 2015-12-09 | 中煤科工集团西安研究院有限公司 | Radial horizontal well bottom steering device and construction method thereof |
| CN106522865A (en) * | 2016-11-21 | 2017-03-22 | 中国石油集团长城钻探工程有限公司 | Flexible shaft fishing tool for radial horizontal drilling |
| CN109577863A (en) * | 2018-12-25 | 2019-04-05 | 北京大德广源石油技术服务有限公司 | Ultra-short radius sidetracking orients specific purpose tool |
| CN109577863B (en) * | 2018-12-25 | 2019-10-15 | 北京大德广源石油技术服务有限公司 | Ultra-short radius sidetracking orients specific purpose tool |
| WO2022105791A1 (en) * | 2020-11-18 | 2022-05-27 | 万晓跃 | Flexible electrical connection drill string |
| CN113216868A (en) * | 2021-05-11 | 2021-08-06 | 中煤科工集团西安研究院有限公司 | One-way bending drilling tool and punching, cave-making and coal-drawing method |
| CN113216868B (en) * | 2021-05-11 | 2022-06-24 | 中煤科工集团西安研究院有限公司 | One-way bending drilling tool and punching, cave-making and coal-drawing method |
| WO2024017357A1 (en) * | 2022-07-20 | 2024-01-25 | 蓝土地能源技术有限公司 | Microhole drilling apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101294480B (en) | 2012-08-15 |
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| PB01 | Publication | ||
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| C14 | Grant of patent or utility model | ||
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Granted publication date: 20120815 Termination date: 20170603 |