DE201888C - - Google Patents

Info

Publication number
DE201888C
DE201888C DENDAT201888D DE201888DA DE201888C DE 201888 C DE201888 C DE 201888C DE NDAT201888 D DENDAT201888 D DE NDAT201888D DE 201888D A DE201888D A DE 201888DA DE 201888 C DE201888 C DE 201888C
Authority
DE
Germany
Prior art keywords
drill bit
diamonds
diamond
iron parts
wear
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
Application number
DENDAT201888D
Other languages
German (de)
Publication of DE201888C publication Critical patent/DE201888C/de
Active legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B12/00Accessories for drilling tools
    • E21B12/02Wear indicators
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00Drill bits
    • E21B10/46Drill bits characterised by wear resisting parts, e.g. diamond inserts

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.

Bei Tiefbohrungen mit Diamantkronen tritt häufig der Fall ein, daß bei dem Auftreffen der Bohrkrone auf hartes Gebirge in kurzer Zeit sich so viel Eisen von der Bohrlippe abschleift, daß die Bohrdiamanten in ihrer Fassung freigelegt und gelockert werden und schließlich herausfallen. Die hierdurch entstehenden Verluste an Diamanten machen jährlich große Summen aus. Gemäß der Erfindung soll diesen Diamantverlusten auf folgende Weise vorgebeugt werden: Die Bohrkrone wird mit Vertiefungen versehen. Diese werden mit wasserlöslichem Farbstoff gefüllt und so verschlossen, daß sich ihr Verschluß im Verlauf des Verschleißes der Eisenteile der Bohrkrone löst, bevor die Diamanten locker zu werden drohen. Z.B. werden in die Bohrlippe neben den Diamanten mehrere möglichst große und tiefe Löcher dicht beieinander gebohrt und an ihrem Grunde miteinander verbunden, um Druck und Gegendruck auszugleichen. Diese Bohrlöcher werden dann mit einem stark, am besten tiefrot färbenden Stoff angefüllt und dann mit einer gemeinschaftlichen Metallplatte Verschlossen.In deep drilling with diamond crowns it often occurs that when they hit the drill bit grinds so much iron off the drill lip in a short time on hard rock, that the drilling diamonds are exposed and loosened in their setting and finally fall out. The resulting Diamond losses add up to large sums of money every year. According to the invention these diamond losses should be prevented in the following way: The drill bit is provided with indentations. These are filled with water-soluble dye and so closed that its closure changes in the course of the wear and tear of the iron parts of the The drill bit loosens before the diamonds threaten to loosen. E.g. in the drilling lip next to the diamonds several holes as large and deep as possible are drilled close together and connected to each other at their base in order to equalize pressure and counterpressure. These boreholes are then filled with a strong, preferably deep red colored substance and then closed with a common metal plate.

.Die Stärke dieser Verschlußplatte ist so zu bemessen, daß sie sich schon löst, bevor infolge Verschleißens der Bohrlippe ein Lockerwerden und Herausfallen der Diamanten eintreten könnte. Der Farbstoff kann jetzt austreten und sich mit dem Bohrspülwasser mischen. Das gefärbte Spülwasser läßt nun ■ über Tage ersehen, daß eine Auswechselung der Krone erforderlich ist, um das Verlorengehen von Diamanten zu verhüten..The strength of this closure plate is to be dimensioned so that it loosens before as a result Wearing of the drill lip loosening and falling out of the diamonds occur could. The dye can now escape and mix with the drilling fluid. The colored rinse water can now ■ For days it was seen that the crown had to be replaced to prevent it from being lost to prevent from diamonds.

Claims (1)

Patent-Anspruch:Patent claim: Verfahren, Diamantverlusten beim Tiefbohren mit Diamantkrone vorzubeugen, dadurch gekennzeichnet, daß in Vertiefüngen der Bohrkrone wasserlöslicher Farb- : stoff eingebracht wird und die Vertiefungen dann so verschlossen werden, daß sich ihr Verschluß im Verlauf des Verschleißes der Eisenteile der Bohrkrone löst und durch das jetzt gefärbt zutage tretende Spülwasser ein Zeichen gegeben wird, bevor die Diamanten in Gefahr kommen, bei weiterem Verschleiß der Eisenteile sich in ihrer Fassung zu lockern. .Procedure to prevent diamond losses when deep drilling with a diamond crown, characterized in that in recesses of the drill bit water-soluble color : substance is introduced and the wells are then closed so that you Lock in the course of wear of the iron parts of the drill bit loosens and through the now colored rinse water is given a sign before the diamonds are in danger further wear of the iron parts to loosen in their socket. .
DENDAT201888D Active DE201888C (en)

Publications (1)

Publication Number Publication Date
DE201888C true DE201888C (en)

Family

ID=464412

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT201888D Active DE201888C (en)

Country Status (1)

Country Link
DE (1) DE201888C (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2439542A (en) * 1945-04-04 1948-04-13 Raymond S Hunt Water detector for oil wells
US2457960A (en) * 1944-06-15 1949-01-04 William E Walker Drill bit
US2461164A (en) * 1947-03-19 1949-02-08 Lewis Farral Francis Wear indicating attachment for drilling bits
US2468905A (en) * 1943-06-11 1949-05-03 Jr John B Warren Means for detecting wear on bits
US2562833A (en) * 1948-12-22 1951-07-31 Standard Oil Dev Co Dull bit indicator

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2468905A (en) * 1943-06-11 1949-05-03 Jr John B Warren Means for detecting wear on bits
US2457960A (en) * 1944-06-15 1949-01-04 William E Walker Drill bit
US2439542A (en) * 1945-04-04 1948-04-13 Raymond S Hunt Water detector for oil wells
US2461164A (en) * 1947-03-19 1949-02-08 Lewis Farral Francis Wear indicating attachment for drilling bits
US2562833A (en) * 1948-12-22 1951-07-31 Standard Oil Dev Co Dull bit indicator

Similar Documents

Publication Publication Date Title
DE201888C (en)
DE202007019554U1 (en) The ground engaging tool system
EP0368838A1 (en) Device for the consolidation of geological formations having no or only little stability
DE2442146C2 (en) Pick for removing minerals and process for its manufacture
DE1240787B (en) Procedure for creating underground storage rooms
DE2052149A1 (en) Excavator fang
EP0439821A1 (en) Cutting crown for casings with easily exchangeable teeth
WO2011079339A2 (en) Drill bit for the drilling, in particular percussion drilling or rotary percussion drilling, of holes in soil material or rock material
Rostoker et al. Casting farm implements, comparable tools and hardware in ancient China
AT12096U1 (en) DRILLING CIRCULAR FOR DRILLING, IN PARTICULAR PUNCHING OR DRILLING OF HOLES IN GROUND OR ROCK MATERIALS
DE10334610B4 (en) wellhead
EP2850284A1 (en) System for drilling and for placing rock bolts
DE2162474A1 (en) EXCAVATOR TOOTH WITH INTERCHANGEABLE TOOTH TIP
DE575528C (en) Process to protect against water ingress and to cover pits with limestone, in which concrete is introduced from above through boreholes
DE643066C (en) Manufacture of explosive holes
SU1721211A1 (en) Rotary drilling bit
AT115335B (en) Drilling tool for earthworks.
DE260326C (en)
DE836923C (en) Process for sealing damaged structures, especially dams, as well as porous or cracked bedrock
DE2318928A1 (en) IMPACT DRILL BIT
Taylor IX. Sketch of the history of mining in Devon and Cornwall
Woods Excavations in a Dry Valley in Beer, SE Devon
DE2917292A1 (en) Cutting head for rotary and impact operated coal drill - has cross-shaped tip and wedge-shaped upper part
RU2021466C1 (en) Method for roller-cutter drill bit break-in
DE452552C (en) Dredging bucket knives