CN202215176U - Novel dismountable and replaceable compound windowing milling wimble - Google Patents
Novel dismountable and replaceable compound windowing milling wimble Download PDFInfo
- Publication number
- CN202215176U CN202215176U CN2011203221597U CN201120322159U CN202215176U CN 202215176 U CN202215176 U CN 202215176U CN 2011203221597 U CN2011203221597 U CN 2011203221597U CN 201120322159 U CN201120322159 U CN 201120322159U CN 202215176 U CN202215176 U CN 202215176U
- Authority
- CN
- China
- Prior art keywords
- mill
- window
- windowing
- mills
- connector
- 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 a novel dismountable and replaceable compound windowing milling wimble. The novel dismountable and replaceable compound windowing milling wimble adopts the technical scheme that the novel dismountable and replaceable compound windowing milling wimble mainly includes a windowing mill, a window expansion mill, a window repair mill, a flexible bar, a plurality of water holes and a connector, wherein the windowing mill and the window expansion mill are arranged at the tail end of the flexible bar in sequence; the window repair mill is arranged in the middle of the flexible bar; the upper end of the windowing mill is cylindrical; the lower end of the windowing mill is conical; hard alloy fragments are brazed on the conical surface; the water holes are formed on the conical surface; and the connector is arranged at the other end of the flexible bar. The utility model has the benefits that the defect of short service life of the conventional windowing mill wimble is overcome; the scrap discharging efficiency is improved through additional spiral grooves, so as to reduce repeated grinding of iron scraps; and quick-wear parts can be replaced for high economic benefits.
Description
Technical field:
The utility model relates in a kind of petroleum casing pipe the side positioning instrument of windowing, and particularly a kind of novel combined type that changes is windowed and milled awl.
Background technology:
Casing sidetracking is in cased a certain position, and being lowered to windows mills awl and adopt method for milling, and orientation mills out a window on sleeve pipe, and its hole be an ellipse.Mill awl when going into the well and drilling rod join, the rotation of rotating disk passes to drilling rod during cutting, and applies certain the pressure of the drill, cuts sleeve pipe.
Mill awl mainly with the mode wear sleeve of cutting, shearing, extruding, suffered power has twisting resistance, axial force, the condition of work more complicated; The old awl end of milling belongs to the broken carbide alloy of bullet shape external surface brazing; And do not have helicla flute, cause iron filings to grind repeatedly to clay into power shape could discharge well head, make and mill taper thread grinding and decrease than very fast; The long construction period of windowing, and it is poor for the monolithic reuse to mill awl.
Summary of the invention:
The purpose of the utility model is exactly the above-mentioned defective that exists to prior art, provides a kind of novel combined type that changes to window and mill awl, is applicable in oil exploration, the development process to improving the prospect pit success rate and the rate of oil and gas recovery.
Its technical scheme is: mainly mill, expand window by windowing and mill, repair window and mill, scratch bar, hydrophthalmia, connector and form; Described end of scratching bar is provided with successively to window and mills and expand window and mill, and is provided with at the middle part of scratching bar to repair window and mill, and the described upper end of milling of windowing is a cylinder; The lower end is taper; The broken carbide alloy of conical surface brazing, and be provided with a plurality of hydrophthalmias, the other end of scratching bar is provided with connector.
Inlay a plurality of columniform minor diameter carbide alloy respectively at four wings that mill the place of windowing, inlay a plurality of major diameter hard alloys respectively in the spiral fluted side that the expansion window mills.
The above-mentioned window of repairing mills and is conveyor screw, external surface brazing carbide alloy.
The above-mentioned external diameter of scratching bar is thinner than the external diameter of connector.
The beneficial effect of the utility model is: 1, can replace the existing instrument of windowing; 2, the utility model cutting principle is that broken alloy adds the stock-removing efficiency height of the corner angle micro-cutting of cylinder alloy than the existing instrument of windowing; 3, stability of rotation; 4, can change wearing terrain; 5, the increase helicla flute is easy to arrange and cuts, and reduces repeatedly and grinds, thereby reduce useless wearing and tearing; 6, increase the length of scratching bar minimizing window, reduce the engineering time; 7, can improve application life.
Description of drawings:
Accompanying drawing 1 is the structural representation of the utility model;
Accompanying drawing 2 be the utility model partly cut open figure;
Accompanying drawing 3 is enlarged drawings that windowing of the utility model milled;
Accompanying drawing 4 is lateral views of the utility model;
Among the last figure: window mill 1, expand that window mills 2, repaiies that window mills 3, scratches bar 4, hydrophthalmia 5, minor diameter carbide alloy 6, major diameter hard alloy 7, connector 8.
The specific embodiment:
In conjunction with accompanying drawing 1-4, the utility model is done further to describe:
The utility model mainly mills 1 by windowing, expand that window mills 2, repaiies that window mills 3, scratches bar 4, hydrophthalmia 5, connector 8 are formed; Described end of scratching bar 4 be provided with successively window mill 1 with expand window and mill 2, be provided with at the middle part of scratching bar 4 and repair window and mill 3, describedly window that to mill 1 upper end be cylinder; The lower end is taper; The broken carbide alloy of conical surface brazing, and be provided with a plurality of hydrophthalmias 5, the other end of scratching bar 4 is provided with connector 8.
Window and mill 1 and be used for sleeve pipe is carried out initial opening milling; The lower end is designed to taper, and the horizontal component that the pressure of the drill is produced is loaded into shear action power on the sleeve pipe.This structure design can prevent the whipstock that weares and teares in milling process, can prevent again to window to mill skids off sleeve pipe.
The upper end be cylindrical, mainly plays stabilization, and the axial force that the pressure of the drill is produced is uniformly applied on the cutting edge that the expansion window mills.This structure design can in the windowing process is milled in expansion, prevent to mill awl jumpings of spraining, and the assurance reaming is coaxial with initial window.
Four wings that the windowing of the utility model milled 1 place are inlayed the cylindrical carbide alloy of 5 φ 6 respectively, improving stock-removing efficiency, mill the cylinder carbide alloy that 2 spiral fluted side is inlayed 12 φ 8 respectively expanding window.Window and mill 1 under the effect of the pressure of the drill W and torque T; The lower end conical outer surface is stressed in moving downward on the one hand, can average force, thus reduce dangerouse cross-section; On the one hand around the milling spindle line rotation of windowing, mainly be four cylinder alloy and carbide alloy of tapering external surface brazing on the wing.The iron of cutting is cut and can be discharged well head through helicla flute, thereby has improved stock-removing efficiency, also avoids iron to cut and grinds the wearing and tearing that reduced carbide alloy in the shaft bottom repeatedly, and detachably change the member of serious wear.
Window during work to mill and sleeve pipe is carried out initial opening skiving mill,, milling 3 finishing windows through repairing window after expand the reaming of window milling mill.
Claims (4)
1. the novel combined type that changes is windowed and is milled awl; It is characterized in that: mainly mill (1), expand that window mills (2), repaiies that window mills (3), scratch bar (4), hydrophthalmia (5), connector (8) form by windowing; Described end of scratching bar (4) is provided with successively to window and mills (1) and expand window and mill (2), is provided with at the middle part of scratching bar (4) to repair window and mill (3), and the described upper end of milling (1) of windowing is a cylinder; The lower end is taper; The broken carbide alloy of conical surface brazing, and be provided with a plurality of hydrophthalmias (5), the other end of scratching bar (4) is provided with connector (8).
2. the novel combined type that changes according to claim 1 is windowed and is milled awl; It is characterized in that: mill four wings (1) locating and inlay a plurality of columniform minor diameter carbide alloy (6) respectively windowing, inlay a plurality of major diameter hard alloys (7) respectively expanding the spiral fluted side that window mills (2).
3. the novel combined type that changes according to claim 1 is windowed and milled awl, it is characterized in that: the described window of repairing mills (3) and is conveyor screw, external surface brazing carbide alloy.
4. the novel combined type that changes according to claim 1 is windowed and milled awl, it is characterized in that: described external diameter of scratching bar (4) is thinner than the external diameter of connector (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203221597U CN202215176U (en) | 2011-08-31 | 2011-08-31 | Novel dismountable and replaceable compound windowing milling wimble |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203221597U CN202215176U (en) | 2011-08-31 | 2011-08-31 | Novel dismountable and replaceable compound windowing milling wimble |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202215176U true CN202215176U (en) | 2012-05-09 |
Family
ID=46014436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203221597U Expired - Fee Related CN202215176U (en) | 2011-08-31 | 2011-08-31 | Novel dismountable and replaceable compound windowing milling wimble |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202215176U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102943628A (en) * | 2012-11-15 | 2013-02-27 | 西南石油大学 | Double-layered casing windowing drillbit |
| CN108843264A (en) * | 2018-05-26 | 2018-11-20 | 锦州清华机械有限公司 | The multi-functional milling cone of line cutting type |
-
2011
- 2011-08-31 CN CN2011203221597U patent/CN202215176U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102943628A (en) * | 2012-11-15 | 2013-02-27 | 西南石油大学 | Double-layered casing windowing drillbit |
| CN102943628B (en) * | 2012-11-15 | 2015-04-15 | 西南石油大学 | Double-layered casing windowing drillbit |
| CN108843264A (en) * | 2018-05-26 | 2018-11-20 | 锦州清华机械有限公司 | The multi-functional milling cone of line cutting type |
| CN108843264B (en) * | 2018-05-26 | 2024-03-01 | 锦州清华机械有限公司 | Line cutting type multifunctional milling cone |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205858184U (en) | The replaceable combined drill in a kind of colliery | |
| Patel et al. | Analysis of drilling tool life-a review | |
| CN202215176U (en) | Novel dismountable and replaceable compound windowing milling wimble | |
| CN102182415A (en) | Efficient milling cone with guide tool | |
| CN203124799U (en) | High-speed deep hole drill and drilling processes thereof | |
| CN109681122A (en) | A kind of two rank step scraper | |
| CN208010305U (en) | A kind of down-hole equipment end face finishing combination tool | |
| CN204344038U (en) | A kind of spiral impregnated type junk mill with reaming hole function | |
| CN208330246U (en) | Split type borehole wall prosthetic device | |
| CN202900052U (en) | Double-acting ultrahard strong lateral-cutting window-opening drill bit with composite teeth | |
| CN207934849U (en) | Milling shoes | |
| CN202560101U (en) | Hole digging drill | |
| CN102162343B (en) | Milling shoes for casing window sidetracking | |
| qiong Guo et al. | Development of PDC drill bits for MWD directional drilling in underground coal mine | |
| CN209145493U (en) | A kind of geological drilling reaming bit | |
| CN210714466U (en) | Coal seam drilling is protected directly and is prevented oblique device | |
| CN210598887U (en) | Mill and expand integrative awl of milling | |
| CN203655165U (en) | Casing pipe windowing bit | |
| CN206448773U (en) | A kind of gear wheel draws cave drill bit | |
| CN104514506A (en) | Milling shoe improving method and screw impregnated milling shoe with hole expanding function | |
| CN208137852U (en) | A kind of hydraulic flushing in hole drilling tool with broken coal device | |
| CN202401998U (en) | High-efficiency drilling and reaming milling cone | |
| CN202031515U (en) | High-efficiency milling cone with steering tool | |
| CN111005685B (en) | Gear wheel-PDC composite sleeve milling bit | |
| CN111088949A (en) | Novel cone-PDC composite drill bit |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120509 Termination date: 20170831 |