WO2020079393A3 - Drill string with a downhole reamer - Google Patents

Drill string with a downhole reamer

Info

Publication number
WO2020079393A3
WO2020079393A3 PCT/GB2019/052624 GB2019052624W WO2020079393A3 WO 2020079393 A3 WO2020079393 A3 WO 2020079393A3 GB 2019052624 W GB2019052624 W GB 2019052624W WO 2020079393 A3 WO2020079393 A3 WO 2020079393A3
Authority
WO
WIPO (PCT)
Prior art keywords
drill string
drill
reamer
results
upwardly
Prior art date
Application number
PCT/GB2019/052624
Other languages
French (fr)
Other versions
WO2020079393A2 (en
Inventor
Paul Bernard Lee
Dayln BEAZER
Original Assignee
BYWORTH, Ian James
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 BYWORTH, Ian James filed Critical BYWORTH, Ian James
Priority to MX2021002593A priority Critical patent/MX2021002593A/en
Priority to CN201980055966.6A priority patent/CN112739884A/en
Priority to CA3110768A priority patent/CA3110768A1/en
Priority to EA202191008A priority patent/EA202191008A1/en
Priority to US17/264,704 priority patent/US20210310313A1/en
Priority to EP19778596.7A priority patent/EP3867485A2/en
Publication of WO2020079393A2 publication Critical patent/WO2020079393A2/en
Publication of WO2020079393A3 publication Critical patent/WO2020079393A3/en

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
    • 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
    • E21B4/00—Drives for drilling, used in the borehole
    • E21B4/02—Fluid rotary type drives

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)

Abstract

A drill string for use in the directional drilling of wellbores is described. A downhole reamer apparatus (202) is mounted in a drill string incorporating a drilling motor (300), stabiliser (302) and drill bit (304) operable either by rotation of the drill string or activation of the drilling motor (300). The drill string is located in wellbore (306) at the end of drill pipe (310). If the operator wishes to drill upwardly, the reamer elements are locked in the retracted condition. This results in the reamer apparatus being under gauge which results in build angle (308) pointing the drill bit upwardly.
PCT/GB2019/052624 2018-10-18 2019-09-18 Drill string WO2020079393A2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
MX2021002593A MX2021002593A (en) 2018-10-18 2019-09-18 Drill string.
CN201980055966.6A CN112739884A (en) 2018-10-18 2019-09-18 Drill string with underreaming device
CA3110768A CA3110768A1 (en) 2018-10-18 2019-09-18 Drill string
EA202191008A EA202191008A1 (en) 2018-10-18 2019-09-18 DRILL COLUMN
US17/264,704 US20210310313A1 (en) 2018-10-18 2019-09-18 Drill string
EP19778596.7A EP3867485A2 (en) 2018-10-18 2019-09-18 Drill string with a downhole reamer

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GBGB1816969.8A GB201816969D0 (en) 2018-10-18 2018-10-18 Downhole reamer apparatus
GB1816969.8 2018-10-18
GBGB1904424.7A GB201904424D0 (en) 2018-10-18 2019-03-29 Drill string
GB1904424.7 2019-03-29

Publications (2)

Publication Number Publication Date
WO2020079393A2 WO2020079393A2 (en) 2020-04-23
WO2020079393A3 true WO2020079393A3 (en) 2020-05-28

Family

ID=64453780

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2019/052624 WO2020079393A2 (en) 2018-10-18 2019-09-18 Drill string

Country Status (8)

Country Link
US (1) US20210310313A1 (en)
EP (1) EP3867485A2 (en)
CN (1) CN112739884A (en)
CA (1) CA3110768A1 (en)
EA (1) EA202191008A1 (en)
GB (2) GB201816969D0 (en)
MX (1) MX2021002593A (en)
WO (1) WO2020079393A2 (en)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1663048A (en) * 1927-04-11 1928-03-20 Earl S Hartson Underreamer
US1743528A (en) * 1927-04-09 1930-01-14 Grant John Underreamer
GB302900A (en) * 1927-12-22 1930-02-06 Grant John Underreamer
US1794735A (en) * 1927-10-22 1931-03-03 Grant John Rotary expanding underreamer
US1822216A (en) * 1927-02-26 1931-09-08 Earl S Hartson Underreamer
US1828750A (en) * 1931-01-24 1931-10-27 Grant John Underreamer
WO2001000961A1 (en) * 1999-06-24 2001-01-04 Bjoernstad Thor An underreamer and a method of using the underreamer
US20020062995A1 (en) * 2000-11-30 2002-05-30 Walker Larry B. Seismic shothole reaming module
US20150144401A1 (en) * 2013-11-27 2015-05-28 Smith International, Inc. Hydraulically actuated tool with electrical throughbore
CN104806170A (en) * 2015-05-13 2015-07-29 西南石油大学 Drilling and coal mining large-variable-diameter reaming bit

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1822216A (en) * 1927-02-26 1931-09-08 Earl S Hartson Underreamer
US1743528A (en) * 1927-04-09 1930-01-14 Grant John Underreamer
US1663048A (en) * 1927-04-11 1928-03-20 Earl S Hartson Underreamer
US1794735A (en) * 1927-10-22 1931-03-03 Grant John Rotary expanding underreamer
GB302900A (en) * 1927-12-22 1930-02-06 Grant John Underreamer
US1828750A (en) * 1931-01-24 1931-10-27 Grant John Underreamer
WO2001000961A1 (en) * 1999-06-24 2001-01-04 Bjoernstad Thor An underreamer and a method of using the underreamer
US20020062995A1 (en) * 2000-11-30 2002-05-30 Walker Larry B. Seismic shothole reaming module
US20150144401A1 (en) * 2013-11-27 2015-05-28 Smith International, Inc. Hydraulically actuated tool with electrical throughbore
CN104806170A (en) * 2015-05-13 2015-07-29 西南石油大学 Drilling and coal mining large-variable-diameter reaming bit

Also Published As

Publication number Publication date
GB201816969D0 (en) 2018-12-05
WO2020079393A2 (en) 2020-04-23
MX2021002593A (en) 2021-05-12
EP3867485A2 (en) 2021-08-25
EA202191008A1 (en) 2021-08-31
CA3110768A1 (en) 2020-04-23
CN112739884A (en) 2021-04-30
GB201904424D0 (en) 2019-05-15
US20210310313A1 (en) 2021-10-07

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