CN202100198U - Hydraulic while-drilling underreamer - Google Patents
Hydraulic while-drilling underreamer Download PDFInfo
- Publication number
- CN202100198U CN202100198U CN2011201973310U CN201120197331U CN202100198U CN 202100198 U CN202100198 U CN 202100198U CN 2011201973310 U CN2011201973310 U CN 2011201973310U CN 201120197331 U CN201120197331 U CN 201120197331U CN 202100198 U CN202100198 U CN 202100198U
- Authority
- CN
- China
- Prior art keywords
- cylindrical shell
- pole
- center
- outside
- cone tube
- 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.)
- Expired - Fee Related
Links
Images
Abstract
The utility model relates to the technical field of while-drilling hole reaming devices, and provides a hydraulic while-drilling underreamer, which comprises a cylinder body, a cone cylinder, dovetail groove tracks, a hole reaming blade, a center rod, a compression spring, a positioning cap and a positioning nut, wherein, the cone cylinder that can move up and down is arranged inside the lower part of the cylinder body; the outer part of the cone cylinder is in the shape of a cone with a wide top and a narrow bottom; at least the two dovetail groove tracks are formed on the outer circumference of the cone cylinder from top to bottom; a mounting hole is formed on the cylinder body corresponding to the dovetail groove tracks; the middle part of the hole reaming blade is positioned in the mounting hole; and an inner end of the hole reaming blade is in the shape of a dovetail, and is installed in the dovetail groove tracks. The hydraulic while-drilling underreamer with reasonable and compact structure is convenient to use, and can contract and spread the hole reaming blade in the radial direction so as to lead the hole reaming blade to adjust the semidiameter of a cutter as required when the hole reaming blade is used, as a result, the construction difficulty can be reduced, the cost can be saved, and the working efficiency can be improved.
Description
Technical field
The utility model relates to boring reaming hole device technique field, is a kind of fluid power drill-following reamer.
Background technology
Along with going deep into of in-depth that oil-gas reservoir is familiar with and oil-gas field development; The problem that drilling well runs into becomes increasingly complex; The solution of these challenges also more and more depends on development and means perfect of instrument, with boring that the reaming hole technology just is being based on that this background proposes and development; So-called is exactly to adopt with boring reaming hole instrument and conventional bit program with boring the reaming hole technology, when creeping into, enlarges a kind of drilling technology of well comprehensively.Practice shows to have significant advantage with boring the reaming hole technology at aspects such as handling down hole problem, reduction drilling well integrated cost, raising shaft building quality and safety, becomes a kind of important oil drilling kit just gradually with boring the reaming hole instrument; Saline bed or easy undergauge stratum appear in regular meeting in drilling process, and at this moment employed in this case conventional gypsum-salt bed boring method adopts the difficulty of construction of conventional gypsum-salt bed brill big, cost up, drilling efficiency reduction through the phenomenon that bit freezing appears in regular meeting.
Summary of the invention
The utility model provides a kind of fluid power drill-following reamer, has overcome the deficiency of above-mentioned prior art, and it can effectively solve with boring the reaming hole instrument big to the difficulty of construction on saline bed or easy undergauge stratum, and cost is high, the problem that drilling efficiency is low.
The technical scheme of the utility model realizes through following measure: a kind of fluid power drill-following reamer comprises cylindrical shell, cone tube, dovetail groove track, reaming hole blade, center-pole, compression spring, positioning cap and setscrew nut; The cone tube that can move up and down is arranged in the cylindrical shell bottom; The outside of cone tube is taper wide at the top and narrow at the bottom; Exterior periphery at the cone tube is distributed with at least two dovetail groove tracks from top to bottom; On the corresponding cylindrical shell of dovetail groove track, installing hole is arranged, the middle part of reaming hole blade is positioned at installing hole, and the inner of reaming hole blade is dovetail shaped and is installed in the dovetail groove track; Inner upper side at the cone tube has inner convex platform, and the conically shaped flowing hole is arranged on inner convex platform; The center-pole that can move up and down is arranged in cylindrical shell, and the lower outside and the inner convex platform of center-pole are fixed together; Be fixed with the cylindrical shell internal projection of annular on the cylindrical shell of conically shaped top, the cylindrical shell flowing hole is arranged on the cylindrical shell internal projection; The top of center-pole pass the cylindrical shell internal projection and and cylindrical shell between form the cavity of annular, be fixed with positioning cap on the top of center-pole, the outside of the center-pole between positioning cap and cylindrical shell internal projection is set with the compression spring; On the center-pole above the positioning cap, draw-in groove is arranged, setscrew nut is fixed in the draw-in groove of center-pole and it outsidely is fixed together through screw thread with inside cylindrical shell.
Be to the further optimization of above-mentioned utility model technical scheme below or/and improve:
The exterior periphery of above-mentioned cone tube can be evenly equipped with three dovetail groove tracks from top to bottom; Article three, on the cylindrical shell that the dovetail groove track is corresponding three installing holes are arranged, the inner of reaming hole blade is installed in the dovetail groove track.
The inner lower of above-mentioned cone tube can have screw thread, is fixedly connected with supporting positive cover at the downside of cone tube through screw thread, and the external diameter of supporting positive cover is corresponding with the internal diameter of cylindrical shell bottom.
The outside, upper end of above-mentioned cone tube and the outside, bottom of supporting positive cover can have the seal groove of annular respectively, are installed with the O RunddichtringO in the seal groove; Be installed with rectangular seal on the installing hole of the cylindrical shell corresponding with the reaming hole blade.
The lower outside of above-mentioned center-pole and inner convex platform can be fixed together through screw thread.
The outside, upper end of above-mentioned center-pole can be fixed together through screw thread with positioning cap.
The utility model reasonable and compact in structure, easy to use, through radial contraction and expansion, make it can regulate tool radius according to required situation in use to the reaming hole blade, therefore reduce difficulty of construction, practiced thrift cost, improved operating efficiency.
Description of drawings
Accompanying drawing 1 is looked the half section structural representation for the master of the utility model most preferred embodiment.
Accompanying drawing 2 is that the A-A of accompanying drawing 1 is to the sectional structure sketch map.
Coding in the accompanying drawing is respectively: 1 is cylindrical shell, and 2 is the cone tube, and 3 is the dovetail groove track, and 4 is the reaming hole blade; 5 is inner convex platform, and 6 is the cylindrical shell flowing hole, and 7 is center-pole, and 8 is the cylindrical shell internal projection; 9 are the compression spring, and 10 is positioning cap, and 11 is setscrew nut, and 12 is supporting positive cover; 13 is the O RunddichtringO, and 14 is rectangular seal, and 15 is cone tube flowing hole.
The specific embodiment
The utility model does not receive the restriction of following embodiment, can confirm concrete embodiment according to the technical scheme and the actual conditions of the utility model.
In the utility model; For the ease of describing; The description of the relative position relation of each parts all is to describe according to the Butut mode of Figure of description, as: the position relation of upper and lower, left and right etc. is what to confirm according to the Butut direction of Figure of description.
Below in conjunction with embodiment and accompanying drawing the utility model is further described:
Like accompanying drawing 1, shown in 2, this fluid power drill-following reamer comprises cylindrical shell 1, cone tube 2, dovetail groove track 3, reaming hole blade 4, center-pole 7, compression spring 9, positioning cap 10 and setscrew nut 11; The cone tube 2 that can move up and down is arranged in cylindrical shell 1 bottom; The outside of cone tube 2 is taper wide at the top and narrow at the bottom; Exterior periphery at cone tube 2 is distributed with at least two dovetail groove tracks 3 from top to bottom; On the cylindrical shell 1 of dovetail groove track 3 correspondences, installing hole is arranged, the middle part of reaming hole blade 4 is positioned at installing hole, and the inner of reaming hole blade 4 is dovetail shaped and is installed in the dovetail groove track 3; Inner upper side at cone tube 2 has inner convex platform 5, and conically shaped flowing hole 15 is arranged on inner convex platform 5; The center-pole 7 that can move up and down is arranged in cylindrical shell 1, and the lower outside of center-pole 7 and inner convex platform 5 are fixed together; Be fixed with the cylindrical shell internal projection 8 of annular on the cylindrical shell 1 of conically shaped 2 tops, cylindrical shell flowing hole 6 is arranged on cylindrical shell internal projection 8; The top of center-pole 7 pass cylindrical shell internal projection 8 and and cylindrical shell 1 between form the cavity of annular, be fixed with positioning cap 10 on the top of center-pole 7, the outside of the center-pole 7 between positioning cap 10 and cylindrical shell internal projection 8 is set with compression spring 9; On the center-pole above the positioning cap 10 7, draw-in groove is arranged, setscrew nut 11 is fixed in the draw-in groove of center-pole 7 and it outsidely is fixed together through screw thread with inside cylindrical shell 1.
Can according to actual needs above-mentioned fluid power drill-following reamer be done further to optimize or/and improve:
Shown in accompanying drawing 2, be evenly equipped with three dovetail groove tracks 3 from top to bottom in the exterior periphery of cone tube 2; Article three, on the cylindrical shell 1 of dovetail groove track 3 correspondences three installing holes are arranged, the inner of reaming hole blade 4 is installed in the dovetail groove track 3; Like this, reaming hole blade 4 is stressed more even when making cutting, is difficult for forging a knife.
Shown in accompanying drawing 1, in the inner lower of cone tube 2 screw thread is arranged, be fixedly connected with supporting positive cover 12 at the downside of cone tube 2 through screw thread, the external diameter of supporting positive cover 12 is corresponding with the internal diameter of cylindrical shell 1 bottom; Like this, can guarantee when center-pole 7 drive cone tubes 2 move up and down, to be in the center.
Shown in accompanying drawing 1, in the outside, upper end of cone tube 2 and the outside, bottom of supporting positive cover 12 annular seal groove is arranged respectively, be installed with O RunddichtringO 13 in the seal groove; Be installed with rectangular seal 14 on the installing hole of the cylindrical shell 1 corresponding with reaming hole blade 4; Can prevent that like this drilling fluid from entering into the dovetail groove rail portion, make its corrosion reduce application life.
Shown in accompanying drawing 1, the lower outside of center-pole 7 and inner convex platform 5 are fixed together through screw thread; Be convenient to install.
Shown in accompanying drawing 1, the upper end of center-pole 7 outside and positioning cap 10 are fixed together through screw thread; Be convenient to dismounting.
Above technical characterictic has constituted the most preferred embodiment of the utility model, and it has stronger compliance and best implementation result, can increase and decrease non-essential technical characterictic according to actual needs, satisfies the demand of different situations.
The use of the utility model most preferred embodiment: when the turn on pump circulation time; It is descending together that fluid power promotes cone tube 2 through center-pole 7; Compression spring 9 is in compressive state; Reaming hole blade 4 moves on dovetail groove track 3, and cone tube 2 promotion reaming hole blades 4 move radially simultaneously, make reaming hole blade 4 stretch out realization with boring reaming hole; Drilling fluid forms drilling channels through cylindrical shell flowing hole on inner convex platform 5 and the cylindrical shell internal projection 86 and conically shaped flowing hole 15, guarantees that drilling fluid does not have pressure reduction smoothly and passes through; When termination of pumping, center-pole 7 sets back under the effect of compression spring 9, and it is up together to cause center-pole 7 to drive cone tube 2, makes reaming hole blade 4 vertically move withdrawal.
Claims (10)
1. a fluid power drill-following reamer comprises cylindrical shell, cone tube, dovetail groove track, reaming hole blade, center-pole, compression spring, positioning cap and setscrew nut; The cone tube that can move up and down is arranged in the cylindrical shell bottom; The outside of cone tube is taper wide at the top and narrow at the bottom; Exterior periphery at the cone tube is distributed with at least two dovetail groove tracks from top to bottom; On the corresponding cylindrical shell of dovetail groove track, installing hole is arranged, the middle part of reaming hole blade is positioned at installing hole, and the inner of reaming hole blade is dovetail shaped and is installed in the dovetail groove track; Inner upper side at the cone tube has inner convex platform, and the conically shaped flowing hole is arranged on inner convex platform; The center-pole that can move up and down is arranged in cylindrical shell, and the lower outside and the inner convex platform of center-pole are fixed together; Be fixed with the cylindrical shell internal projection of annular on the cylindrical shell of conically shaped top, the cylindrical shell flowing hole is arranged on the cylindrical shell internal projection; The top of center-pole pass the cylindrical shell internal projection and and cylindrical shell between form the cavity of annular, be fixed with positioning cap on the top of center-pole, the outside of the center-pole between positioning cap and cylindrical shell internal projection is set with the compression spring; On the center-pole above the positioning cap, draw-in groove is arranged, setscrew nut is fixed in the draw-in groove of center-pole and it outsidely is fixed together through screw thread with inside cylindrical shell.
2. fluid power drill-following reamer according to claim 1 is characterized in that the exterior periphery of cone tube is evenly equipped with three dovetail groove tracks from top to bottom; Article three, on the cylindrical shell that the dovetail groove track is corresponding three installing holes are arranged, the inner of reaming hole blade is installed in the dovetail groove track.
3. fluid power drill-following reamer according to claim 1 and 2 is characterized in that the inner lower of cone tube has screw thread, is fixedly connected with supporting positive cover at the downside of cone tube through screw thread, and the external diameter of supporting positive cover is corresponding with the internal diameter of cylindrical shell bottom.
4. fluid power drill-following reamer according to claim 1 and 2 is characterized in that the outside, upper end of cone tube and the outside, bottom of supporting positive cover have annular seal groove respectively, are installed with the O RunddichtringO in the seal groove; Be installed with rectangular seal on the installing hole of the cylindrical shell corresponding with the reaming hole blade.
5. fluid power drill-following reamer according to claim 3 is characterized in that the outside, upper end of cone tube and the outside, bottom of supporting positive cover have annular seal groove respectively, are installed with the O RunddichtringO in the seal groove; Be installed with rectangular seal on the installing hole of the cylindrical shell corresponding with the reaming hole blade.
6. fluid power drill-following reamer according to claim 1 and 2 is characterized in that the lower outside of center-pole and inner convex platform are fixed together through screw thread.
7. fluid power drill-following reamer according to claim 5 is characterized in that the lower outside of center-pole and inner convex platform are fixed together through screw thread.
8. fluid power drill-following reamer according to claim 1 and 2 is characterized in that the outside, upper end of center-pole is fixed together through screw thread with positioning cap.
9. fluid power drill-following reamer according to claim 3 is characterized in that the outside, upper end of center-pole is fixed together through screw thread with positioning cap.
10. fluid power drill-following reamer according to claim 7 is characterized in that the outside, upper end of center-pole is fixed together through screw thread with positioning cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201973310U CN202100198U (en) | 2011-06-13 | 2011-06-13 | Hydraulic while-drilling underreamer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201973310U CN202100198U (en) | 2011-06-13 | 2011-06-13 | Hydraulic while-drilling underreamer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202100198U true CN202100198U (en) | 2012-01-04 |
Family
ID=45386214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201973310U Expired - Fee Related CN202100198U (en) | 2011-06-13 | 2011-06-13 | Hydraulic while-drilling underreamer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202100198U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105089502A (en) * | 2014-05-14 | 2015-11-25 | 中国石油天然气股份有限公司 | Variable-diameter back reaming device and process method |
| CN108343381A (en) * | 2018-01-22 | 2018-07-31 | 长江大学 | A kind of flexible reaming while drilling device of hydraulic type |
| CN110695410A (en) * | 2019-09-30 | 2020-01-17 | 达英科(南京)设备有限公司 | Diameter-variable hand-held electric drill |
-
2011
- 2011-06-13 CN CN2011201973310U patent/CN202100198U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105089502A (en) * | 2014-05-14 | 2015-11-25 | 中国石油天然气股份有限公司 | Variable-diameter back reaming device and process method |
| CN108343381A (en) * | 2018-01-22 | 2018-07-31 | 长江大学 | A kind of flexible reaming while drilling device of hydraulic type |
| CN110695410A (en) * | 2019-09-30 | 2020-01-17 | 达英科(南京)设备有限公司 | Diameter-variable hand-held electric drill |
| CN110695410B (en) * | 2019-09-30 | 2020-12-08 | 武义锐鹰工具制造有限公司 | Diameter-variable hand-held electric drill |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202655695U (en) | Improved compound bit | |
| CN202100198U (en) | Hydraulic while-drilling underreamer | |
| CN203308389U (en) | Double-wall drill rod with detachable inner pipe | |
| CN203097775U (en) | Hydraulic anchor | |
| CN103726808A (en) | Hydraulic sleeve scraper | |
| CN201428405Y (en) | Patch device for casing damaged well | |
| CN202914039U (en) | Hydraulic type sleeve scraper | |
| CN203906364U (en) | Installed and welded bearing housing | |
| CN205135490U (en) | Well drilling is cored and is used doublestage linkage | |
| CN203742545U (en) | Combined drill pipe rubber plug | |
| CN103089834A (en) | Throttler | |
| CN206608145U (en) | A kind of oil well pump | |
| CN203817415U (en) | Machining cutter for manufacturing stepped taper hole cylinder | |
| CN103061685B (en) | Downhole drilling tool and anti-loosening self-locking structure thereof | |
| CN202441260U (en) | Oil field coring bit | |
| CN203626794U (en) | Two-staged differential pressure sliding sleeve | |
| CN206812062U (en) | A kind of elastic gum wing topping machanism of oil steering tool centralizer | |
| CN204960843U (en) | Two effect recycle valves | |
| CN203626735U (en) | High-performance drill rod check valve | |
| CN204627443U (en) | Helicoid hydraulic motor testing pressure of well head joint | |
| CN104563901A (en) | Petroleum drilling top drive safety valve protecting joint | |
| CN201502349U (en) | Expansion tool for expansion pipes | |
| CN104358562A (en) | Built-in annular bottom hole pressure measuring device | |
| CN205135505U (en) | Adjustable anti -overflow pipe | |
| CN202660070U (en) | Wired laterally-inclined cable guiding device for direction well |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120104 Termination date: 20160613 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |