NO20085210L - Explosives shock absorber - Google Patents

Explosives shock absorber

Info

Publication number
NO20085210L
NO20085210L NO20085210A NO20085210A NO20085210L NO 20085210 L NO20085210 L NO 20085210L NO 20085210 A NO20085210 A NO 20085210A NO 20085210 A NO20085210 A NO 20085210A NO 20085210 L NO20085210 L NO 20085210L
Authority
NO
Norway
Prior art keywords
shock absorber
voltage
explosives
voltage wave
equipment package
Prior art date
Application number
NO20085210A
Other languages
Norwegian (no)
Inventor
Steven W Henderson
Larry Grigar
Original Assignee
Schlumberger Technology Bv
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 Schlumberger Technology Bv filed Critical Schlumberger Technology Bv
Publication of NO20085210L publication Critical patent/NO20085210L/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42D—BLASTING
    • F42D3/00—Particular applications of blasting techniques
    • F42D3/04—Particular applications of blasting techniques for rock blasting
    • 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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/02—Couplings; joints
    • E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
    • E21B17/07—Telescoping joints for varying drill string lengths; Shock absorbers
    • 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
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/11—Perforators; Permeators
    • E21B43/119—Details, e.g. for locating perforating place or direction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B39/00—Packaging or storage of ammunition or explosive charges; Safety features thereof; Cartridge belts or bags
    • F42B39/24—Shock-absorbing arrangements in packages, e.g. for shock waves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42D—BLASTING
    • F42D5/00—Safety arrangements
    • F42D5/04—Rendering explosive charges harmless, e.g. destroying ammunition; Rendering detonation of explosive charges harmless
    • F42D5/045—Detonation-wave absorbing or damping means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
    • G01V1/40—Seismology; Seismic or acoustic prospecting or detecting specially adapted for well-logging
    • G01V1/52—Structural details

Abstract

En fremgangsmåte for å dempe spenningsbølger som forplantes fra detonasjon av en sprenganordning i en brønnboring, for å beskytte en anordning plassert i brønnen, omfatter de trinn å anordne en sjokkdemper mellom en sprenganordning og en utstyrspakke; detonere sprenganordningen slik at det forplantes en spenningsbølge mot sjokkdemperen og utstyrspakken; og reflektere en del av spenningsbølgen i sjokkdemperen. Sjokkdemperen kan omfatte én eller flere grenseflater dannet mellom materialer med ulik akustisk impedans. Sjokkdemperen kan reflektere en kompresjonsdel av spenningsbølgen ved én grenseflate og en strekkdel av spenningsbølgen ved en annen grenseflate.A method of attenuating voltage waves propagated from detonation of an explosive device in a wellbore to protect a device located in the well comprises the steps of providing a shock absorber between an explosive device and an equipment package; detonate the detonator to propagate a voltage wave against the shock absorber and equipment package; and reflect part of the voltage surge in the shock absorber. The shock absorber may comprise one or more interfaces formed between materials of different acoustic impedance. The shock absorber may reflect a compression portion of the voltage wave at one interface and a stretch portion of the voltage wave at another interface.

NO20085210A 2007-12-17 2008-12-15 Explosives shock absorber NO20085210L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11/957,757 US20090151589A1 (en) 2007-12-17 2007-12-17 Explosive shock dissipater

Publications (1)

Publication Number Publication Date
NO20085210L true NO20085210L (en) 2009-06-18

Family

ID=40133734

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20085210A NO20085210L (en) 2007-12-17 2008-12-15 Explosives shock absorber

Country Status (4)

Country Link
US (1) US20090151589A1 (en)
CN (1) CN101463720A (en)
GB (1) GB2455854B (en)
NO (1) NO20085210L (en)

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US8397800B2 (en) 2010-12-17 2013-03-19 Halliburton Energy Services, Inc. Perforating string with longitudinal shock de-coupler
US8397814B2 (en) 2010-12-17 2013-03-19 Halliburton Energy Serivces, Inc. Perforating string with bending shock de-coupler
US8393393B2 (en) 2010-12-17 2013-03-12 Halliburton Energy Services, Inc. Coupler compliance tuning for mitigating shock produced by well perforating
US8985200B2 (en) 2010-12-17 2015-03-24 Halliburton Energy Services, Inc. Sensing shock during well perforating
MX2013006899A (en) 2010-12-17 2013-07-17 Halliburton Energy Serv Inc Well perforating with determination of well characteristics.
WO2012148429A1 (en) 2011-04-29 2012-11-01 Halliburton Energy Services, Inc. Shock load mitigation in a downhole perforation tool assembly
US20120241169A1 (en) 2011-03-22 2012-09-27 Halliburton Energy Services, Inc. Well tool assemblies with quick connectors and shock mitigating capabilities
US9091152B2 (en) 2011-08-31 2015-07-28 Halliburton Energy Services, Inc. Perforating gun with internal shock mitigation
WO2013032456A1 (en) * 2011-08-31 2013-03-07 Halliburton Energy Services, Inc. Perforating gun with internal shock mitigation
WO2014003699A2 (en) 2012-04-03 2014-01-03 Halliburton Energy Services, Inc. Shock attenuator for gun system
US9598940B2 (en) 2012-09-19 2017-03-21 Halliburton Energy Services, Inc. Perforation gun string energy propagation management system and methods
US8978749B2 (en) 2012-09-19 2015-03-17 Halliburton Energy Services, Inc. Perforation gun string energy propagation management with tuned mass damper
WO2014084868A1 (en) * 2012-12-01 2014-06-05 Halliburton Energy Services, Inc. Protection of electronic devices used with perforating guns
EP2929134B1 (en) 2012-12-04 2019-04-03 Services Petroliers Schlumberger Perforating gun with integrated initiator
WO2014179669A1 (en) * 2013-05-03 2014-11-06 Schlumberger Canada Limited Cohesively enhanced modular perforating gun
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CN105352696A (en) * 2015-11-17 2016-02-24 北京理工大学 Downhole string dynamic response test system and test method under explosive blast
WO2018194595A1 (en) * 2017-04-19 2018-10-25 Halliburton Energy Services, Inc. System and method to control wellbore pressure during perforating
WO2019099005A1 (en) * 2017-11-15 2019-05-23 Halliburton Energy Services, Inc. Perforating gun
US11377935B2 (en) 2018-03-26 2022-07-05 Schlumberger Technology Corporation Universal initiator and packaging
US10982513B2 (en) 2019-02-08 2021-04-20 Schlumberger Technology Corporation Integrated loading tube
CN109708542B (en) * 2019-03-15 2024-04-12 山西师范大学 Isolation device for explosive storage
WO2020232242A1 (en) 2019-05-16 2020-11-19 Schlumberger Technology Corporation Modular perforation tool
CN110986711B (en) * 2019-12-17 2021-01-01 武汉大学 Weak shock blasting charging device and using method thereof
US11732555B2 (en) * 2020-07-15 2023-08-22 Baker Hughes Oilfield Operations Llc Adjustable strength shock absorber system for downhole ballistics
USD1016958S1 (en) 2020-09-11 2024-03-05 Schlumberger Technology Corporation Shaped charge frame
CN114440717B (en) * 2021-12-17 2023-02-28 西安交通大学 Can subdue propelling movement pole of shock wave intensity
CN114483032B (en) * 2021-12-17 2023-03-21 西安交通大学 Shock wave reduction method for push rod

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Also Published As

Publication number Publication date
CN101463720A (en) 2009-06-24
GB2455854A (en) 2009-06-24
US20090151589A1 (en) 2009-06-18
GB2455854B (en) 2010-03-31
GB0819488D0 (en) 2008-12-03

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