DE125255C - - Google Patents
Info
- Publication number
- DE125255C DE125255C DENDAT125255D DE125255DA DE125255C DE 125255 C DE125255 C DE 125255C DE NDAT125255 D DENDAT125255 D DE NDAT125255D DE 125255D A DE125255D A DE 125255DA DE 125255 C DE125255 C DE 125255C
- Authority
- DE
- Germany
- Prior art keywords
- drill bit
- diameter
- borehole
- drilling
- under
- 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.)
- Active
Links
- 238000005553 drilling Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 239000000969 carrier Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 claims 1
- 230000000284 resting effect Effects 0.000 claims 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/04—Electric drives
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/02—Core bits
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
Gegenstand der Erfindung ist ein Verfahren zum Cylindrischbohren von Bohrlöchern.The invention relates to a method for cylindrical drilling of boreholes.
Das Verfahren ist im Wesentlichen dadurch gekennzeichnet, dafs man eine Bohrkrone zum Bohren verwendet, deren Durchmesser verändert werden kann.The method is essentially characterized in that a drill bit is used for Drilling used, the diameter of which can be changed.
Die Zeichnung veranschaulicht eine zur Ausübung des vorliegenden Verfahrens geeignete Vorrichtung, und zwar stellt dar:The drawing illustrates one suitable for practicing the present method Device, namely represents:
Fig. ι einen Längsschnitt,Fig. Ι a longitudinal section,
Fig. 2 eine Unteransicht der Bohrkrone,Fig. 2 is a bottom view of the drill bit,
Fig. 3 einen Querschnitt,3 shows a cross section,
Fig. 4 eine Seitenansicht undFig. 4 is a side view and
Fig. 5 einen Horizontalschnitt durch diejenige Stelle der Bohrkrone, an welcher sich die Werkzeugträger befinden.Fig. 5 is a horizontal section through that point of the drill bit at which the Tool carrier are located.
Um das Bohrloch cylindrisch, d. h. von einem Durchmesser niederzubringen, welcher dem äufsersten Durchmesser der Verrohrung entspricht, wird eine Bohrkrone verwendet, deren Durchmesser verändert werden kann. Wenn die Vorrichtung durch die Verrohrung zur Bohrsohle niedergebracht ist, wird der Durchmesser der Bohrkrone auf das Mafs des äufseren Durchmessers der Verrohrung gebracht. Dieses kann durch verschiedene Mittel geschehen.Around the borehole cylindrical, i.e. H. of a diameter which corresponds to the outermost diameter of the casing, a drill bit is used, whose diameter can be changed. When the device through the piping is brought down to the drill bottom, the diameter of the drill bit is adjusted to the size of the brought the outer diameter of the piping. This can be done by various means happen.
Beispielsweise kann man, wie die Zeichnung veranschaulicht, die Werkzeugträger α mit dem Körper der Bohrkrone durch eine Schlittenführung b verbinden, welche unter einem gewissen Winkel zur Bohrachse angeordnet ist. Stofsen die Werkzeuge α auf die Sohle auf, so werden sie wegen des auf ihnen lastenden Gewichtes bestrebt sein, in ihren Führungen b nach aufsen zu gleiten; sie legen sich gegen die Bohrlochwandungen, deren Durchmesser gleich dem äufseren Durchmesser der Verrohrung ist, an und sind so in der Lage, das Bohrloch cylindrich, entsprechend dem äufsersten Durchmesser der Röhrenfahrt g, herzustellen. Ein Anschlage (Fig. 3) an dem Werkzeugträger α begrenzt seine Bewegung nach aufsen. Der Antrieb der Bohrkrone, der nicht zur Erfindung gehört, erfolgt durch den Elektromotor d und die Räderpaare ef. For example, as the drawing illustrates, the tool carrier α can be connected to the body of the drill bit by a slide guide b which is arranged at a certain angle to the drilling axis. If the tools α hit the sole, because of the weight on them they will endeavor to slide outwards in their guides b; they lie against the borehole walls, the diameter of which is equal to the outer diameter of the casing, and are thus able to produce the borehole cylindrich, corresponding to the outermost diameter of the tube run g. A stop (Fig. 3) on the tool carrier α limits its outward movement. The drill bit, which does not belong to the invention, is driven by the electric motor d and the pairs of wheels ef.
Claims (2)
Publications (1)
Publication Number | Publication Date |
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DE125255C true DE125255C (en) |
Family
ID=393991
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT125255D Active DE125255C (en) |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE125255C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3837412A (en) * | 1972-12-06 | 1974-09-24 | W Driver | Downhole electrical core drilling system |
-
0
- DE DENDAT125255D patent/DE125255C/de active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3837412A (en) * | 1972-12-06 | 1974-09-24 | W Driver | Downhole electrical core drilling system |
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