CN103061674A - Underwell oil layer driller - Google Patents
Underwell oil layer driller Download PDFInfo
- Publication number
- CN103061674A CN103061674A CN2012105000920A CN201210500092A CN103061674A CN 103061674 A CN103061674 A CN 103061674A CN 2012105000920 A CN2012105000920 A CN 2012105000920A CN 201210500092 A CN201210500092 A CN 201210500092A CN 103061674 A CN103061674 A CN 103061674A
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- flexible shaft
- flexible axle
- flexible
- spherical
- groove
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Abstract
The invention relates to an underwell drilling tool of petroleum drilling, in particular to an underwell oil layer driller. A hollow flexible shaft of the driller is composed of a plurality of flexible shaft short sections, through holes are arranged at the center of the flexible shaft short sections, flexible shaft male connectors are arranged at the upper ends of the flexible shaft short sections, and flexible shaft female connectors are arranged at the lower ends of the flexible shaft short sections; the flexible shaft male connectors are designed into spherical bodies, and grooves are symmetrically distributed on the surfaces of the spherical bodies; the flexible shaft female connectors are designed into spherical body grooves, the spherical body groove of the flexible shaft female connector of the last flexible shaft short section is matched and connected with the spherical body of the flexible shaft female connector of the next flexible shaft short section through pins in the grooves of the flexible shaft male connectors, a positioning ring clamps the flexible shaft male connectors and is welded with the flexible shaft female connectors, a guide rail groove is a cylinder, and a smooth arc-shaped rail is arranged in the guide rail groove. The underwell oil layer driller is simple in structure, convenient to detach, and capable of operating in multiple layers and multiple boreholes of the same layer, effectively increases the drainage area, and is long in horizontal borehole section and low in manufacture cost.
Description
Technical field:
The present invention relates to a kind of oil drilling down-hole drilling tool, particularly a kind of down-hole oil reservoir drill.
Background technology:
In the oil drilling field, how to improve production efficiency and the development effectiveness of stripper well, old well, be important directions and the problem of present oilfield exploitation.Traditional down-hole yield increase is the downhole perforation rifle perforations that adopt at present more, utilize the downhole perforation rifle to carry out perforation and exist perforation apart from deficiencies such as weak point, oil reservoir feedback oil amount lack.The core component of down-hole oil reservoir drill is the flexible axle drilling system.And traditional flexible axle forms by the wire rope winding or by the universal joint string, its axial direction rigidity intensity can't be protected in wire rope winding mode, flexible axle horizontal throwing up radially under the high speed rotating condition, in universal joint string prescription formula, can't satisfy at high rotating speed creeping into continuously under the low torque conditions, and existing soft axle transmission power limited, low at rotating speed, when moment of torsion is large, the rotating speed of driven end often can not guarantee even rotation, torsional stiffness can not guarantee.
Summary of the invention:
The technical problem to be solved in the present invention provides a kind of down-hole oil reservoir drill, and this device has been realized simple in structure, is convenient to dismounting, can carry out operation in the multilayer position and with the many wells in layer position, effectively increases drainage area, the horizontal hole segment length, and cost of manufacture is low.Overcome under the existing well perforating gun perforation apart from weak point, the few deficiency of oil reservoir feedback oil amount.
The technical solution used in the present invention is: a kind of down-hole oil reservoir drill comprises flexible hollow shaft, guide-track groove, top connection, anchor tip and motor; Flexible hollow shaft is comprised of a plurality of flexible axle pipe nipples, and flexible axle pipe nipple center has through hole, and flexible axle pipe nipple upper end is the flexible axle male joint, and the lower end is the flexible axle female joint; The flexible axle male joint is designed to spherical, and its spherical surface is symmetrical fluted; The flexible axle female joint is designed to the spherical groove, the pin that the spherical groove of the flexible axle female joint of a upper flexible axle pipe nipple and the spherical of the flexible axle male joint of next flexible axle pipe nipple match in the merga pass flexible axle male joint groove is connected, locating ring blocks the flexible axle male joint, and weld mutually with the flexible axle female joint, guide-track groove is a cylinder, and there is a level and smooth arc track inside; A plurality of flexible axle pipe nipples connect in turn and are installed in the arc track of guide-track groove, and the flexible hollow shaft lower end is connected with the hollow shaft drill bit, and the upper end is connected with top connection, and the top connection upper end is by the hollow stem connecting motor, and anchor tip is welded on the guide-track groove upper end.
The invention has the beneficial effects as follows: the present invention has been owing to adopted flexible hollow shaft, thereby has and can carry out operation in the multilayer position and with the many wells in layer position, effectively increases the effect of drainage area, and is simple in structure, is convenient to dismounting, the horizontal hole segment length, and cost of manufacture is low.
Description of drawings:
The present invention will be further described in detail below in conjunction with the drawings and specific embodiments.
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of flexible hollow shaft.
The specific embodiment:
As shown in Figure 1 and Figure 2, a kind of down-hole oil reservoir drill comprises flexible hollow shaft, guide-track groove 6, top connection 7, anchor tip 8 and motor 10; Flexible hollow shaft is comprised of a plurality of flexible axle pipe nipples, and flexible axle pipe nipple center has through hole, and flexible axle pipe nipple upper end is flexible axle male joint 1, and the lower end is flexible axle female joint 2; Flexible axle male joint 1 is designed to spherical, and its spherical surface is symmetrical fluted; Flexible axle female joint 2 is designed to the spherical groove, the pin 3 that the spherical groove of the flexible axle female joint 2 of a upper flexible axle pipe nipple and the spherical of the flexible axle male joint 1 of next flexible axle pipe nipple match in merga pass flexible axle male joint 1 groove is connected, and has realized the motion of flexible hollow shaft in axial and radial direction.Locating ring 4 blocks flexible axle male joint 1, and welds mutually with flexible axle female joint 2, makes flexible axle male joint 1 can interconnect accurately and prevent with flexible axle female joint 2 in the axial direction loosening of flexible axle male joint 1 and comes off.Guide-track groove 6 is cylinders, and there is a level and smooth arc track inside, realizes 90 ° of break-ins for flexible hollow shaft at the axial direction of certain distance, provides external condition for drilling cement sheath.A plurality of flexible axle pipe nipples connect in turn and are installed in the arc track of guide-track groove 6, the flexible hollow shaft lower end is connected with hollow shaft drill bit 5, the upper end is connected with top connection 7, hollow shaft drill bit 5 is power outputs that cement sheath is drilled, its special cutter head structure can effectively prevent the formation of mud drum, and hydrophthalmia thereon can recirculated water liquid, plays cooling, lubricated, the effect of cleaning the impurity spare.Top connection 7 upper ends are by hollow stem connecting motor 10, and anchor tip 8 is welded on guide-track groove 6 upper ends.
During construction, anchor tip 8 connects the top oil pipe, top connection 7 top connecting screw rod power set, the bottom connects flexible hollow shaft with transferring power, drive flexible hollow shaft and seamlessly transit in guide-track groove 6 interior realizations, and then realize rotary drilling from the axial direction to the radial direction, finally by motor 10 with transmission of power to hollow shaft drill bit 5, brill leaves sleeve pipe 9 and cement sheath, finishes construction.
Be understandable that, more than about specific descriptions of the present invention, only for the present invention being described and being not to be subject to the described technical scheme of the embodiment of the invention, those of ordinary skill in the art is to be understood that, still can make amendment or be equal to replacement the present invention, to reach identical technique effect; Use needs as long as satisfy, all within protection scope of the present invention.
Claims (1)
1. a down-hole oil reservoir drill comprises flexible hollow shaft, guide-track groove (6), top connection (7), anchor tip (8) and motor (10); It is characterized in that: flexible hollow shaft is comprised of a plurality of flexible axle pipe nipples, and flexible axle pipe nipple center has through hole, and flexible axle pipe nipple upper end is flexible axle male joint (1), and the lower end is flexible axle female joint (2); Flexible axle male joint (1) is designed to spherical, and its spherical surface is symmetrical fluted; Flexible axle female joint (2) is designed to the spherical groove, the pin (3) that the spherical groove of the flexible axle female joint (2) of a upper flexible axle pipe nipple and the spherical of the flexible axle male joint (1) of next flexible axle pipe nipple match in merga pass flexible axle male joint (1) groove is connected, locating ring (4) blocks flexible axle male joint (1), and weld mutually with flexible axle female joint (2), guide-track groove (6) is a cylinder, and there is a level and smooth arc track inside; A plurality of flexible axle pipe nipples connect in turn and are installed in the arc track of guide-track groove (6), the flexible hollow shaft lower end is connected with hollow shaft drill bit (5), the upper end is connected with top connection (7), top connection (7) upper end is by hollow stem connecting motor (10), and anchor tip (8) is welded on guide-track groove (6) upper end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105000920A CN103061674A (en) | 2012-11-29 | 2012-11-29 | Underwell oil layer driller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105000920A CN103061674A (en) | 2012-11-29 | 2012-11-29 | Underwell oil layer driller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103061674A true CN103061674A (en) | 2013-04-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105000920A Pending CN103061674A (en) | 2012-11-29 | 2012-11-29 | Underwell oil layer driller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103061674A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104481394A (en) * | 2014-11-14 | 2015-04-01 | 中国石油集团长城钻探工程有限公司 | Radial horizontal rotating drilling flexible shaft protector |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2135055Y (en) * | 1992-05-27 | 1993-06-02 | 胜利石油管理局钻井总公司 | Guide power drilling tool with flexible hinge |
| US5305838A (en) * | 1990-12-28 | 1994-04-26 | Andre Pauc | Device comprising two articulated elements in a plane, applied to a drilling equipment |
| CN1508380A (en) * | 2002-12-18 | 2004-06-30 | 杜晓瑞 | Ultrashort curvature leve well drilling and completion method and apparatus thereof |
| CN2700538Y (en) * | 2004-01-13 | 2005-05-18 | 辽河石油勘探局 | Horizontal radial drilling device |
| CN101158271A (en) * | 2007-11-19 | 2008-04-09 | 大庆油田有限责任公司 | Oil-water well oil layer positioning deep penetration horizontal drilling device |
| CN201083225Y (en) * | 2007-10-10 | 2008-07-09 | 大庆油田有限责任公司 | Power type hollow soft shaft |
| CN101294480A (en) * | 2008-06-03 | 2008-10-29 | 中国海洋石油总公司 | Device for drilling miniature borehole on ultra-short radius of coiled tubing |
| CN101748970A (en) * | 2009-12-15 | 2010-06-23 | 中国石油集团长城钻探工程有限公司 | Ultra-short radius radial drilling tool system |
-
2012
- 2012-11-29 CN CN2012105000920A patent/CN103061674A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5305838A (en) * | 1990-12-28 | 1994-04-26 | Andre Pauc | Device comprising two articulated elements in a plane, applied to a drilling equipment |
| CN2135055Y (en) * | 1992-05-27 | 1993-06-02 | 胜利石油管理局钻井总公司 | Guide power drilling tool with flexible hinge |
| CN1508380A (en) * | 2002-12-18 | 2004-06-30 | 杜晓瑞 | Ultrashort curvature leve well drilling and completion method and apparatus thereof |
| CN2700538Y (en) * | 2004-01-13 | 2005-05-18 | 辽河石油勘探局 | Horizontal radial drilling device |
| CN201083225Y (en) * | 2007-10-10 | 2008-07-09 | 大庆油田有限责任公司 | Power type hollow soft shaft |
| CN101158271A (en) * | 2007-11-19 | 2008-04-09 | 大庆油田有限责任公司 | Oil-water well oil layer positioning deep penetration horizontal drilling device |
| CN101294480A (en) * | 2008-06-03 | 2008-10-29 | 中国海洋石油总公司 | Device for drilling miniature borehole on ultra-short radius of coiled tubing |
| CN101748970A (en) * | 2009-12-15 | 2010-06-23 | 中国石油集团长城钻探工程有限公司 | Ultra-short radius radial drilling tool system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104481394A (en) * | 2014-11-14 | 2015-04-01 | 中国石油集团长城钻探工程有限公司 | Radial horizontal rotating drilling flexible shaft protector |
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| 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: 20130424 |