DE208335C - - Google Patents

Info

Publication number
DE208335C
DE208335C DENDAT208335D DE208335DA DE208335C DE 208335 C DE208335 C DE 208335C DE NDAT208335 D DENDAT208335 D DE NDAT208335D DE 208335D A DE208335D A DE 208335DA DE 208335 C DE208335 C DE 208335C
Authority
DE
Germany
Application number
DENDAT208335D
Publication of DE208335C publication Critical patent/DE208335C/de

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00Special methods or apparatus for drilling
    • E21B7/18Drilling by liquid or gas jets, with or without entrained pellets
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B21/00Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/12Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor using drilling pipes with plural fluid passages, e.g. closed circulation systems
DENDAT208335D DE208335C (en)

Publications (1)

Publication Number Publication Date
DE208335C true DE208335C (en)

Family

ID=470373

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT208335D DE208335C (en)

Country Status (1)

Country Link
DE (1) DE208335C (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2720381A (en) * 1949-05-02 1955-10-11 Thomas E Quick Method and apparatus for hydraulic reaming of oil wells
US2803432A (en) * 1952-08-23 1957-08-20 Texaco Development Corp Method of forming underground cavity
DE1158917B (en) * 1960-07-25 1963-12-12 Turbodrill Internat Corp Method and apparatus for drilling with a Duesenstrahl
US3152651A (en) * 1962-01-15 1964-10-13 Sigmund L Ross Excavating apparatus and method
US4224985A (en) * 1977-05-21 1980-09-30 Rapson John E Containment of pressurized fluid jets
DE3726472A1 (en) * 1987-08-08 1989-02-16 Dyckerhoff & Widmann Ag Method of lowering a tubular foundation element as well as apparatus for carrying out the method
US5016717A (en) * 1989-03-14 1991-05-21 Aqua-Vac Locators, Inc. Vacuum excavator

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2720381A (en) * 1949-05-02 1955-10-11 Thomas E Quick Method and apparatus for hydraulic reaming of oil wells
US2803432A (en) * 1952-08-23 1957-08-20 Texaco Development Corp Method of forming underground cavity
DE1158917B (en) * 1960-07-25 1963-12-12 Turbodrill Internat Corp Method and apparatus for drilling with a Duesenstrahl
US3152651A (en) * 1962-01-15 1964-10-13 Sigmund L Ross Excavating apparatus and method
US4224985A (en) * 1977-05-21 1980-09-30 Rapson John E Containment of pressurized fluid jets
DE3726472A1 (en) * 1987-08-08 1989-02-16 Dyckerhoff & Widmann Ag Method of lowering a tubular foundation element as well as apparatus for carrying out the method
US5016717A (en) * 1989-03-14 1991-05-21 Aqua-Vac Locators, Inc. Vacuum excavator