NO891861L - Skjaer fra roerfrese-verktoey. - Google Patents

Skjaer fra roerfrese-verktoey.

Info

Publication number
NO891861L
NO891861L NO89891861A NO891861A NO891861L NO 891861 L NO891861 L NO 891861L NO 89891861 A NO89891861 A NO 89891861A NO 891861 A NO891861 A NO 891861A NO 891861 L NO891861 L NO 891861L
Authority
NO
Norway
Prior art keywords
cutting
slot
longitudinal axis
rotation
tool
Prior art date
Application number
NO89891861A
Other languages
English (en)
Other versions
NO891861D0 (no
Inventor
Johann Springer
Original Assignee
Smith International
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
Priority claimed from GB888810713A external-priority patent/GB8810713D0/en
Priority claimed from GB888813452A external-priority patent/GB8813452D0/en
Priority claimed from GB888822134A external-priority patent/GB8822134D0/en
Application filed by Smith International filed Critical Smith International
Publication of NO891861D0 publication Critical patent/NO891861D0/no
Publication of NO891861L publication Critical patent/NO891861L/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
    • E21B29/00—Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows; Deforming of pipes in boreholes or wells; Reconditioning of well casings while in the ground
    • E21B29/002—Cutting, e.g. milling, a pipe with a cutter rotating along the circumference of the pipe
    • 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
    • E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • 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
    • E21B29/00—Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows; Deforming of pipes in boreholes or wells; Reconditioning of well casings while in the ground
    • E21B29/002—Cutting, e.g. milling, a pipe with a cutter rotating along the circumference of the pipe
    • E21B29/005—Cutting, e.g. milling, a pipe with a cutter rotating along the circumference of the pipe with a radially-expansible cutter rotating inside the pipe, e.g. for cutting an annular window

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)
  • Milling Processes (AREA)

Abstract

Et blad eller skjær (8) for et rørfrese-verktøy som har et legeme - (1) og en lengdeakse . (100 ), har et antall spalter (12) som forløper både i en hovedsakelig radiell retning og i en beregnet rotasjonsretnlng avreseverktøyet omkring lengdeaksen. Plassert 1 hver spalt (12) er minst ett skjærelement (13), hvor spalten og skjærelementet begge har en større dybde i skjæret i den beregnede rotasjonsretnlng enn høyde i lengdeakse-retningen. Tilveiebringelsen av slike dimensjoner for spalten og skjærelementet gir skjæret forbedret. ■levetid .■ Skjærelementene kan hver ha en negativ aksiell sponvinkel (A) og skjærelementene er fortrinnsvis loddet i hver av spaltene. I en foretrukket utførelse er spaltene og skjærelementene begge likeledes avsmalnende fra en fremre flate (221) til en bakre flate (218), med hensyn til den beregnede rota-sjonsretning av verktøyet, med en vinkel i området 1til 20
NO89891861A 1988-05-06 1989-05-05 Skjaer fra roerfrese-verktoey. NO891861L (no)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB888810713A GB8810713D0 (en) 1988-05-06 1988-05-06 Milling tool/drilling tool & blade therefor
GB888813452A GB8813452D0 (en) 1988-06-07 1988-06-07 Milling tool/drilling tool & blade therefor
GB888822134A GB8822134D0 (en) 1988-09-21 1988-09-21 Cutting/grinding tool

Publications (2)

Publication Number Publication Date
NO891861D0 NO891861D0 (no) 1989-05-05
NO891861L true NO891861L (no) 1989-11-07

Family

ID=27263894

Family Applications (1)

Application Number Title Priority Date Filing Date
NO89891861A NO891861L (no) 1988-05-06 1989-05-05 Skjaer fra roerfrese-verktoey.

Country Status (2)

Country Link
EP (1) EP0341073A1 (no)
NO (1) NO891861L (no)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9022062D0 (en) * 1990-10-10 1990-11-21 Petco Fishing & Rental Tools U Milling tool
US5862870A (en) * 1995-09-22 1999-01-26 Weatherford/Lamb, Inc. Wellbore section milling
US10260302B2 (en) * 2014-06-25 2019-04-16 Schlumberger Technology Corporation Cutting insert for initiating a cutout
CN112127823A (zh) * 2020-04-29 2020-12-25 中海油能源发展股份有限公司 一体式多刀水力切割刀
CN116927700B (zh) * 2023-08-23 2024-04-19 西南石油大学 一种高效双级套管段铣工具及套管段铣刀

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3106973A (en) * 1960-09-26 1963-10-15 Christensen Diamond Prod Co Rotary drill bits
GB947440A (en) * 1962-02-09 1964-01-22 Jersey Prod Res Co Drag bit blade
US3145790A (en) * 1963-06-10 1964-08-25 Jersey Prod Res Co Drag bit
US3726351A (en) * 1971-04-26 1973-04-10 E Williams Mill tool
FR2585174B1 (fr) * 1985-07-16 1987-11-27 Eurofarad Procede de fabrication d'un composant capacitif multicouche a dielectrique ceramique du type cordierite, et composant ainsi obtenu
GB8601110D0 (en) * 1986-01-17 1986-02-19 Tri State Oil Tool Uk Ltd Cutter
US4717290A (en) * 1986-12-17 1988-01-05 Homco International, Inc. Milling tool

Also Published As

Publication number Publication date
EP0341073A1 (en) 1989-11-08
NO891861D0 (no) 1989-05-05

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