CA2975143C - High energy severing tool with pressure balanced explosives - Google Patents

High energy severing tool with pressure balanced explosives Download PDF

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Publication number
CA2975143C
CA2975143C CA2975143A CA2975143A CA2975143C CA 2975143 C CA2975143 C CA 2975143C CA 2975143 A CA2975143 A CA 2975143A CA 2975143 A CA2975143 A CA 2975143A CA 2975143 C CA2975143 C CA 2975143C
Authority
CA
Canada
Prior art keywords
directional
booster
boosters
directional booster
detonation
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.)
Active
Application number
CA2975143A
Other languages
English (en)
French (fr)
Other versions
CA2975143A1 (en
Inventor
William T. Bell
James G. Rairigh
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.)
Wt Bell International Inc
Original Assignee
Wt Bell International Inc
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 US14/605,829 external-priority patent/US9657544B2/en
Application filed by Wt Bell International Inc filed Critical Wt Bell International Inc
Priority claimed from US14/858,816 external-priority patent/US9435170B2/en
Publication of CA2975143A1 publication Critical patent/CA2975143A1/en
Application granted granted Critical
Publication of CA2975143C publication Critical patent/CA2975143C/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B29/00Cutting 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
    • E21B29/02Cutting 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 by explosives or by thermal or chemical means

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
CA2975143A 2015-01-26 2015-09-18 High energy severing tool with pressure balanced explosives Active CA2975143C (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US14/605,829 2015-01-26
US14/605,829 US9657544B2 (en) 2013-05-20 2015-01-26 Drill collar severing tool
US14/858,816 US9435170B2 (en) 2013-05-20 2015-09-18 High energy severing tool with pressure balanced explosives
US14/858,816 2015-09-18
PCT/US2015/051017 WO2016122720A1 (en) 2015-01-26 2015-09-18 High energy severing tool with pressure balanced explosives

Publications (2)

Publication Number Publication Date
CA2975143A1 CA2975143A1 (en) 2016-08-04
CA2975143C true CA2975143C (en) 2022-11-15

Family

ID=56544121

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2975143A Active CA2975143C (en) 2015-01-26 2015-09-18 High energy severing tool with pressure balanced explosives

Country Status (3)

Country Link
EP (1) EP3250778B1 (de)
CA (1) CA2975143C (de)
WO (1) WO2016122720A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110359873B (zh) * 2019-07-05 2021-11-02 中国石油天然气集团有限公司 一种井下短电缆切割器及其使用方法
CN111750753B (zh) * 2020-06-01 2021-06-04 武汉大学 一种用于改善水下掏槽爆破破碎效果的爆炸排水方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7104326B2 (en) * 2003-12-15 2006-09-12 Halliburton Energy Services, Inc. Apparatus and method for severing pipe utilizing a multi-point initiation explosive device
US7861785B2 (en) * 2006-09-25 2011-01-04 W. Lynn Frazier Downhole perforation tool and method of subsurface fracturing
US8596378B2 (en) * 2010-12-01 2013-12-03 Halliburton Energy Services, Inc. Perforating safety system and assembly
WO2013165434A1 (en) * 2012-05-03 2013-11-07 Halliburton Energy Services, Inc. Explosive device booster assembly and method of use
US8910556B2 (en) * 2012-11-19 2014-12-16 Don Umphries Bottom hole firing head and method
US8939210B2 (en) 2013-05-20 2015-01-27 William T. Bell Drill collar severing tool

Also Published As

Publication number Publication date
WO2016122720A1 (en) 2016-08-04
EP3250778A4 (de) 2019-02-27
CA2975143A1 (en) 2016-08-04
EP3250778A1 (de) 2017-12-06
EP3250778B1 (de) 2020-05-06

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Effective date: 20200918

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EEER Examination request

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