NL7212836A - - Google Patents

Info

Publication number
NL7212836A
NL7212836A NL7212836A NL7212836A NL7212836A NL 7212836 A NL7212836 A NL 7212836A NL 7212836 A NL7212836 A NL 7212836A NL 7212836 A NL7212836 A NL 7212836A NL 7212836 A NL7212836 A NL 7212836A
Authority
NL
Netherlands
Application number
NL7212836A
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 filed Critical
Publication of NL7212836A publication Critical patent/NL7212836A/xx

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B45/00—Measuring the drilling time or rate of penetration
NL7212836A 1971-10-22 1972-09-22 NL7212836A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US19169371A 1971-10-22 1971-10-22

Publications (1)

Publication Number Publication Date
NL7212836A true NL7212836A (en) 1973-04-25

Family

ID=22706553

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7212836A NL7212836A (en) 1971-10-22 1972-09-22

Country Status (8)

Country Link
US (1) US3746102A (en)
JP (1) JPS4850901A (en)
CA (1) CA963888A (en)
DE (1) DE2252438A1 (en)
FR (1) FR2156742B1 (en)
GB (1) GB1378206A (en)
NL (1) NL7212836A (en)
NO (1) NO136002C (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2159169B1 (en) * 1971-11-08 1974-05-31 Inst Francais Du Petrole
FR2235264B1 (en) * 1973-06-28 1977-12-23 Petroles Cie Francaise
DE2447935A1 (en) * 1973-10-09 1975-04-17 Tampella Oy Ab METHOD AND DEVICE FOR CONTROLLING A ROCK DRILL
JPS5620435B2 (en) * 1973-11-06 1981-05-13
JPS55136393A (en) * 1979-04-11 1980-10-24 Hitachi Construction Machinery Automatic controller for descent of excavating tool of excavator
US4403655A (en) * 1981-02-20 1983-09-13 Trout Buster B Draw works disabling device for use with a well drilling apparatus
JPS57193786U (en) * 1981-05-30 1982-12-08
US4736297A (en) * 1983-02-24 1988-04-05 Lejeune Donald Continuous real time drilling penetration rate recorder
GB2216925A (en) * 1988-04-05 1989-10-18 Anadrill Int Sa Method for controlling a drilling operation
US5713422A (en) * 1994-02-28 1998-02-03 Dhindsa; Jasbir S. Apparatus and method for drilling boreholes
US7026950B2 (en) * 2003-03-12 2006-04-11 Varco I/P, Inc. Motor pulse controller
CN104088620B (en) * 2014-07-29 2017-01-18 江苏中矿立兴能源科技有限公司 Intelligent pneumatic supporting leg type vibrating anchor drilling rig capable of recognizing looseness range of surrounding rock
US10385614B2 (en) 2015-09-30 2019-08-20 Park Industries, Inc. Percussive/rotating drill with blow-out, broken bit, and pressure loss detection systems
CN113445986B (en) * 2021-07-15 2022-08-05 中铁二十三局集团第三工程有限公司 Electric drill is surveyed to gas intelligence that tunnel construction used

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2037007B1 (en) * 1969-04-30 1973-03-16 Inst Francais Du Petrole
US3593807A (en) * 1969-12-11 1971-07-20 Frank J Klima Drilling apparatus

Also Published As

Publication number Publication date
CA963888A (en) 1975-03-04
DE2252438A1 (en) 1973-04-26
NO136002C (en) 1977-07-06
GB1378206A (en) 1974-12-27
FR2156742B1 (en) 1977-01-14
JPS4850901A (en) 1973-07-18
NO136002B (en) 1977-03-28
FR2156742A1 (en) 1973-06-01
US3746102A (en) 1973-07-17

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Legal Events

Date Code Title Description
BV The patent application has lapsed