NO345043B1 - Rømmerverktøy - Google Patents

Rømmerverktøy

Info

Publication number
NO345043B1
NO345043B1 NO20110851A NO20110851A NO345043B1 NO 345043 B1 NO345043 B1 NO 345043B1 NO 20110851 A NO20110851 A NO 20110851A NO 20110851 A NO20110851 A NO 20110851A NO 345043 B1 NO345043 B1 NO 345043B1
Authority
NO
Norway
Prior art keywords
escape tool
escape
tool
Prior art date
Application number
NO20110851A
Other languages
English (en)
Other versions
NO20110851A1 (no
Inventor
Steinar Wasa Tverlid
Original Assignee
Statoil Petroleum As
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 Statoil Petroleum As filed Critical Statoil Petroleum As
Publication of NO20110851A1 publication Critical patent/NO20110851A1/no
Publication of NO345043B1 publication Critical patent/NO345043B1/no

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
    • E21B7/28—Enlarging drilled holes, e.g. by counterboring
    • 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
    • E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
    • E21B10/32—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools
    • 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
    • E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
    • 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
    • E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
    • E21B10/32—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools
    • E21B10/322—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools cutter shifted by fluid pressure

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (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)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
NO20110851A 2010-06-14 2011-06-14 Rømmerverktøy NO345043B1 (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1009888.7A GB2481203B (en) 2010-06-14 2010-06-14 Reaming tool

Publications (2)

Publication Number Publication Date
NO20110851A1 NO20110851A1 (no) 2011-12-15
NO345043B1 true NO345043B1 (no) 2020-09-07

Family

ID=42471582

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20110851A NO345043B1 (no) 2010-06-14 2011-06-14 Rømmerverktøy

Country Status (2)

Country Link
GB (1) GB2481203B (no)
NO (1) NO345043B1 (no)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SG11201407119VA (en) * 2013-02-19 2014-12-30 Fs Technical Corp Diameter-expanding drill bit
CN110424897B (zh) * 2019-08-27 2024-06-07 中铁第四勘察设计院集团有限公司 后扩底钻头
CN111267155B (zh) * 2020-02-13 2021-04-23 常州机电职业技术学院 一种带状垃圾分离切割装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1779575A (en) * 1927-11-21 1930-10-28 Wilson Emmett Underreamer
US4889197A (en) * 1987-07-30 1989-12-26 Norsk Hydro A.S. Hydraulic operated underreamer
JPH08170481A (ja) * 1994-12-16 1996-07-02 Sanwa Kizai Co Ltd 大口径掘削機

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1779575A (en) * 1927-11-21 1930-10-28 Wilson Emmett Underreamer
US4889197A (en) * 1987-07-30 1989-12-26 Norsk Hydro A.S. Hydraulic operated underreamer
JPH08170481A (ja) * 1994-12-16 1996-07-02 Sanwa Kizai Co Ltd 大口径掘削機

Also Published As

Publication number Publication date
NO20110851A1 (no) 2011-12-15
GB201009888D0 (en) 2010-07-21
GB2481203B (en) 2016-03-02
GB2481203A (en) 2011-12-21

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