FR2735841B1 - DEVICE FOR ENLARGING A PILOT DRILL - Google Patents

DEVICE FOR ENLARGING A PILOT DRILL

Info

Publication number
FR2735841B1
FR2735841B1 FR9507733A FR9507733A FR2735841B1 FR 2735841 B1 FR2735841 B1 FR 2735841B1 FR 9507733 A FR9507733 A FR 9507733A FR 9507733 A FR9507733 A FR 9507733A FR 2735841 B1 FR2735841 B1 FR 2735841B1
Authority
FR
France
Prior art keywords
enlarging
pilot drill
drill
pilot
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
Application number
FR9507733A
Other languages
French (fr)
Other versions
FR2735841A1 (en
Inventor
Vlieghere Jean Pierre De
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
FTCS
Original Assignee
FTCS
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by FTCS filed Critical FTCS
Priority to FR9507733A priority Critical patent/FR2735841B1/en
Publication of FR2735841A1 publication Critical patent/FR2735841A1/en
Application granted granted Critical
Publication of FR2735841B1 publication Critical patent/FR2735841B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/20—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes
    • 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
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/28—Enlarging drilled holes, e.g. by counterboring

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
FR9507733A 1995-06-21 1995-06-21 DEVICE FOR ENLARGING A PILOT DRILL Expired - Fee Related FR2735841B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9507733A FR2735841B1 (en) 1995-06-21 1995-06-21 DEVICE FOR ENLARGING A PILOT DRILL

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9507733A FR2735841B1 (en) 1995-06-21 1995-06-21 DEVICE FOR ENLARGING A PILOT DRILL

Publications (2)

Publication Number Publication Date
FR2735841A1 FR2735841A1 (en) 1996-12-27
FR2735841B1 true FR2735841B1 (en) 1997-09-19

Family

ID=9480443

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9507733A Expired - Fee Related FR2735841B1 (en) 1995-06-21 1995-06-21 DEVICE FOR ENLARGING A PILOT DRILL

Country Status (1)

Country Link
FR (1) FR2735841B1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9807279D0 (en) * 1998-04-06 1998-06-03 Hamilton Christopher Improvements to underground cable and pipelaying
FR2809449B1 (en) 2000-05-25 2003-10-03 Jack Butterworth DEVICE FOR PLACING A PIPELINE IN A GROUND
FR2865261B1 (en) * 2004-01-15 2006-04-07 Plumettaz DEVICE AND METHOD FOR SHAPING BOREED PIPES

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4176985A (en) * 1975-07-14 1979-12-04 Reading And Bates Construction Co. System and method for installing production casings
US4402372A (en) * 1979-09-24 1983-09-06 Reading & Bates Construction Co. Apparatus for drilling underground arcuate paths and installing production casings, conduits, or flow pipes therein
US4384624A (en) * 1981-02-25 1983-05-24 Duke John W Earth boring head
CN1007635B (en) * 1985-04-01 1990-04-18 田善达 Underearth propeller
US4784230A (en) * 1985-05-14 1988-11-15 Cherrington Martin D Apparatus and method for installing a conduit within an arcuate bore
FR2614332B1 (en) * 1987-04-21 1991-08-16 Horizontal Drilling Internatio METHOD FOR INSTALLING AN UNDERGROUND PIPE AND RELATED INSTALLATION
DE3815263A1 (en) * 1988-05-05 1989-11-16 Gessler Und Degenhardt Tief Un Process and apparatus for laying buried pipelines
SE8903212L (en) * 1989-09-29 1991-03-30 Diamant Boart Craelius Ab DEVICE TO ACCOMMODATE A LONG-EXTENDED HALL IN THE MARKET
US5096002A (en) * 1990-07-26 1992-03-17 Cherrington Corporation Method and apparatus for enlarging an underground path
DE4220430C2 (en) * 1992-06-24 1994-09-22 Tracto Technik Method and device for making an earth borehole

Also Published As

Publication number Publication date
FR2735841A1 (en) 1996-12-27

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Legal Events

Date Code Title Description
ST Notification of lapse