DK2396382T3 - Nedbrydelige perforationskugler og dermed forbundne fremgangsmåder til underjordisk anvendelse - Google Patents

Nedbrydelige perforationskugler og dermed forbundne fremgangsmåder til underjordisk anvendelse

Info

Publication number
DK2396382T3
DK2396382T3 DK10703496.9T DK10703496T DK2396382T3 DK 2396382 T3 DK2396382 T3 DK 2396382T3 DK 10703496 T DK10703496 T DK 10703496T DK 2396382 T3 DK2396382 T3 DK 2396382T3
Authority
DK
Denmark
Prior art keywords
associated methods
underground use
perforation balls
degradable perforation
degradable
Prior art date
Application number
DK10703496.9T
Other languages
English (en)
Inventor
Hongyu Luo
Dwight D Fulton
Original Assignee
Halliburton Energy Serv 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
Application filed by Halliburton Energy Serv Inc filed Critical Halliburton Energy Serv Inc
Application granted granted Critical
Publication of DK2396382T3 publication Critical patent/DK2396382T3/da

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
    • C09K8/60—Compositions for stimulating production by acting on the underground formation
    • C09K8/62—Compositions for forming crevices or fractures
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
    • C09K8/50—Compositions for plastering borehole walls, i.e. compositions for temporary consolidation of borehole walls
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
    • C09K8/60—Compositions for stimulating production by acting on the underground formation
    • C09K8/62—Compositions for forming crevices or fractures
    • C09K8/72—Eroding chemicals, e.g. acids
    • C09K8/74—Eroding chemicals, e.g. acids combined with additives added for specific purposes
    • C09K8/76—Eroding chemicals, e.g. acids combined with additives added for specific purposes for preventing or reducing fluid loss
    • 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
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/10—Sealing or packing boreholes or wells in the borehole
    • E21B33/13—Methods or devices for cementing, for plugging holes, crevices or the like
    • E21B33/138—Plastering the borehole wall; Injecting into the formation
    • 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
    • E21B2200/00—Special features related to earth drilling for obtaining oil, gas or water
    • E21B2200/08—Down-hole devices using materials which decompose under well-bore conditions
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S507/00—Earth boring, well treating, and oil field chemistry
    • Y10S507/922—Fracture fluid

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Fluid Mechanics (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Lubricants (AREA)
  • Biological Depolymerization Polymers (AREA)
  • Medicinal Preparation (AREA)
DK10703496.9T 2009-02-11 2010-02-10 Nedbrydelige perforationskugler og dermed forbundne fremgangsmåder til underjordisk anvendelse DK2396382T3 (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US12/378,083 US8757260B2 (en) 2009-02-11 2009-02-11 Degradable perforation balls and associated methods of use in subterranean applications
PCT/GB2010/000237 WO2010092336A1 (en) 2009-02-11 2010-02-10 Degradable perforation balls and associated methods of use in subterranean applications

Publications (1)

Publication Number Publication Date
DK2396382T3 true DK2396382T3 (da) 2014-06-30

Family

ID=42133459

Family Applications (1)

Application Number Title Priority Date Filing Date
DK10703496.9T DK2396382T3 (da) 2009-02-11 2010-02-10 Nedbrydelige perforationskugler og dermed forbundne fremgangsmåder til underjordisk anvendelse

Country Status (8)

Country Link
US (2) US8757260B2 (da)
EP (1) EP2396382B1 (da)
AU (1) AU2010212653B2 (da)
BR (1) BRPI1008342A2 (da)
CA (1) CA2751318C (da)
DK (1) DK2396382T3 (da)
MX (1) MX2011008432A (da)
WO (1) WO2010092336A1 (da)

Families Citing this family (80)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0723661D0 (en) * 2007-12-03 2008-01-16 Brinker Technology Ltd Leak sealing
US9260935B2 (en) 2009-02-11 2016-02-16 Halliburton Energy Services, Inc. Degradable balls for use in subterranean applications
US8757260B2 (en) 2009-02-11 2014-06-24 Halliburton Energy Services, Inc. Degradable perforation balls and associated methods of use in subterranean applications
GB0906541D0 (en) * 2009-04-16 2009-05-20 Brinker Technology Ltd Delivery method and compositions
US8853137B2 (en) 2009-07-30 2014-10-07 Halliburton Energy Services, Inc. Increasing fracture complexity in ultra-low permeable subterranean formation using degradable particulate
US9023770B2 (en) * 2009-07-30 2015-05-05 Halliburton Energy Services, Inc. Increasing fracture complexity in ultra-low permeable subterranean formation using degradable particulate
US8697612B2 (en) 2009-07-30 2014-04-15 Halliburton Energy Services, Inc. Increasing fracture complexity in ultra-low permeable subterranean formation using degradable particulate
MX2012001431A (es) * 2009-08-12 2012-05-22 Basf Se Sales organicas para reducir permeabilidades de rocas.
US8720555B2 (en) 2009-11-18 2014-05-13 Halliburton Energy Services, Inc. Self-diverting high-rate water packs
AU2013257480B2 (en) * 2010-04-12 2015-05-07 Halliburton Energy Services, Inc. High strength dissolvable structures for use in a subterranean well
US8430174B2 (en) 2010-09-10 2013-04-30 Halliburton Energy Services, Inc. Anhydrous boron-based timed delay plugs
US8430173B2 (en) * 2010-04-12 2013-04-30 Halliburton Energy Services, Inc. High strength dissolvable structures for use in a subterranean well
US8833443B2 (en) 2010-11-22 2014-09-16 Halliburton Energy Services, Inc. Retrievable swellable packer
US8985200B2 (en) 2010-12-17 2015-03-24 Halliburton Energy Services, Inc. Sensing shock during well perforating
US8794326B2 (en) * 2011-01-19 2014-08-05 Halliburton Energy Services, Inc. Perforating gun with variable free gun volume
US8936086B2 (en) 2011-10-04 2015-01-20 Halliburton Energy Services, Inc. Methods of fluid loss control, diversion, and sealing using deformable particulates
JP2015502983A (ja) * 2011-10-11 2015-01-29 グリーンストラクト， エルエルシー 油抽出のために有用な組成物および方法
US9187686B2 (en) 2011-11-08 2015-11-17 Baker Hughes Incorporated Enhanced electrolytic degradation of controlled electrolytic material
US9919966B2 (en) 2012-06-26 2018-03-20 Baker Hughes, A Ge Company, Llc Method of using phthalic and terephthalic acids and derivatives thereof in well treatment operations
US10041327B2 (en) * 2012-06-26 2018-08-07 Baker Hughes, A Ge Company, Llc Diverting systems for use in low temperature well treatment operations
US9920610B2 (en) * 2012-06-26 2018-03-20 Baker Hughes, A Ge Company, Llc Method of using diverter and proppant mixture
US9765592B2 (en) 2012-06-06 2017-09-19 Exxonmobil Upstream Research Company Systems and methods for secondary sealing of a perforation within a wellbore casing
PL2864442T3 (pl) 2012-06-26 2019-03-29 Baker Hughes, A Ge Company, Llc Sposoby ulepszania sieci szczelin hydraulicznych
US10988678B2 (en) 2012-06-26 2021-04-27 Baker Hughes, A Ge Company, Llc Well treatment operations using diverting system
US11111766B2 (en) 2012-06-26 2021-09-07 Baker Hughes Holdings Llc Methods of improving hydraulic fracture network
WO2014024827A1 (ja) * 2012-08-08 2014-02-13 株式会社クレハ 炭化水素資源回収用ボールシーラーならびにその製造方法及びそれを用いる坑井の処理方法
US9840896B2 (en) 2012-09-21 2017-12-12 Thru Tubing Solutions, Inc. Acid soluble abrasive material and method of use
US9163492B2 (en) 2012-10-23 2015-10-20 Halliburton Energy Services, Inc. Methods and systems using a fluid treatment polar graph
CA2897290C (en) * 2013-01-11 2017-06-13 Kureha Corporation Poly-l-lactic acid solid-state extrusion molded article, method for producing the same, and use applications of the same
EP2969960A4 (en) 2013-03-15 2016-10-19 Greenstract Llc PLANT COMPOSITIONS AND USES THEREOF
US9670750B2 (en) 2013-08-09 2017-06-06 Team Oil Tools, Lp Methods of operating well bore stimulation valves
EP3058166B1 (en) 2014-01-13 2019-03-27 Halliburton Energy Services, Inc. Decomposing isolation devices containing a buffering agent
US11814923B2 (en) 2018-10-18 2023-11-14 Terves Llc Degradable deformable diverters and seals
US9914868B2 (en) * 2014-03-04 2018-03-13 A. Schulman, Inc. Methods and compositions for using temporary compacted materials as well servicing fluids in a subterranean formation
NZ730072A (en) 2014-08-15 2018-02-23 Baker Hughes Inc Diverting systems for use in well treatment operations
JP6451250B2 (ja) * 2014-11-19 2019-01-16 東洋製罐グループホールディングス株式会社 水圧破砕法を利用しての地下資源の採掘方法及び水圧破砕に用いる流体に添加される加水分解性ブロッキング剤
US9505885B2 (en) 2015-03-31 2016-11-29 Baker Hughes Incorporated Methods of manufacturing poly(hexahydrotriazine)s via suspension or emulsion polymerization
US9759053B2 (en) 2015-04-09 2017-09-12 Highlands Natural Resources, Plc Gas diverter for well and reservoir stimulation
US9828843B2 (en) 2015-04-09 2017-11-28 Highlands Natural Resources, Plc Gas diverter for well and reservoir stimulation
US10012064B2 (en) * 2015-04-09 2018-07-03 Highlands Natural Resources, Plc Gas diverter for well and reservoir stimulation
US10344204B2 (en) 2015-04-09 2019-07-09 Diversion Technologies, LLC Gas diverter for well and reservoir stimulation
US10851615B2 (en) 2015-04-28 2020-12-01 Thru Tubing Solutions, Inc. Flow control in subterranean wells
US10233719B2 (en) 2015-04-28 2019-03-19 Thru Tubing Solutions, Inc. Flow control in subterranean wells
US10774612B2 (en) 2015-04-28 2020-09-15 Thru Tubing Solutions, Inc. Flow control in subterranean wells
US9745820B2 (en) * 2015-04-28 2017-08-29 Thru Tubing Solutions, Inc. Plugging device deployment in subterranean wells
US10641069B2 (en) 2015-04-28 2020-05-05 Thru Tubing Solutions, Inc. Flow control in subterranean wells
US9567825B2 (en) 2015-04-28 2017-02-14 Thru Tubing Solutions, Inc. Flow control in subterranean wells
US10513653B2 (en) 2015-04-28 2019-12-24 Thru Tubing Solutions, Inc. Flow control in subterranean wells
US9567824B2 (en) 2015-04-28 2017-02-14 Thru Tubing Solutions, Inc. Fibrous barriers and deployment in subterranean wells
US9523267B2 (en) 2015-04-28 2016-12-20 Thru Tubing Solutions, Inc. Flow control in subterranean wells
US9567826B2 (en) 2015-04-28 2017-02-14 Thru Tubing Solutions, Inc. Flow control in subterranean wells
US11851611B2 (en) 2015-04-28 2023-12-26 Thru Tubing Solutions, Inc. Flow control in subterranean wells
US9816341B2 (en) 2015-04-28 2017-11-14 Thru Tubing Solutions, Inc. Plugging devices and deployment in subterranean wells
US10655427B2 (en) 2015-04-28 2020-05-19 Thru Tubing Solutions, Inc. Flow control in subterranean wells
WO2017014820A1 (en) 2015-07-21 2017-01-26 Thru Tubing Solutions, Inc. Plugging device deployment
US11761295B2 (en) 2015-07-21 2023-09-19 Thru Tubing Solutions, Inc. Plugging device deployment
US10364642B1 (en) 2015-08-19 2019-07-30 Bubbletight, LLC Degradable downhole tools and components
US10767439B1 (en) 2015-08-19 2020-09-08 Bubbletight, LLC Downhole tool having a sealing element constructed from a polyvinyl alcohol compound
US10696893B2 (en) * 2015-10-02 2020-06-30 FracSolution Technologies, LLC Perforation balls and methods of using the same
US9771784B2 (en) * 2015-10-23 2017-09-26 Ely And Associates Corp. Method for re-stimulating wells with hydraulic fractures
BR112018011362B1 (pt) * 2016-01-28 2022-09-13 Halliburton Energy Services, Inc Método para tratar uma formação subterrânea e fluido de tratamento
US9920589B2 (en) 2016-04-06 2018-03-20 Thru Tubing Solutions, Inc. Methods of completing a well and apparatus therefor
US10982520B2 (en) 2016-04-27 2021-04-20 Highland Natural Resources, PLC Gas diverter for well and reservoir stimulation
MX2019004475A (es) * 2016-10-18 2019-12-09 Thru Tubing Solutions Inc Control de flujo en pozos subterraneos.
WO2018111749A1 (en) 2016-12-13 2018-06-21 Thru Tubing Solutions, Inc. Methods of completing a well and apparatus therefor
US10760370B2 (en) * 2016-12-16 2020-09-01 MicroPlug, LLC Micro frac plug
US11022248B2 (en) 2017-04-25 2021-06-01 Thru Tubing Solutions, Inc. Plugging undesired openings in fluid vessels
US11293578B2 (en) 2017-04-25 2022-04-05 Thru Tubing Solutions, Inc. Plugging undesired openings in fluid conduits
MX2020010843A (es) * 2018-05-14 2020-11-06 Halliburton Energy Services Inc Agentes de desvio peletizados que usan polimeros degradables.
US12139992B2 (en) 2019-06-20 2024-11-12 Thru Tubing Solutions, Inc. Discrete plugging device launcher
WO2020264406A1 (en) * 2019-06-26 2020-12-30 Victory Elements, LLC Objects and tools for use hydraulic fracturing and methods of manufacturing same
CN110397420B (zh) * 2019-07-16 2021-04-30 陕西友邦石油工程技术有限公司 一种适用于老井套管孔眼封堵方法
US11643904B1 (en) * 2019-09-25 2023-05-09 Workover Solutions, Inc. Degradable downhole tools and components for high salinity applications
US11828131B1 (en) 2020-03-09 2023-11-28 Workover Solutions, Inc. Downhole plug with integrated slip cover and expansion element
US11767462B2 (en) * 2020-05-22 2023-09-26 Kuraray Co., Ltd. Polyvinyl alcohol-based particulate compositions
CN111621273B (zh) * 2020-06-09 2022-06-10 浙江神耀石化科技有限公司 适用于低温的快速溶解暂堵剂及其制备方法
CN112280545B (zh) * 2020-11-09 2023-01-17 内蒙古浦景聚合材料科技有限公司 一种非金属可降解自适应暂堵球
US11591512B2 (en) 2021-03-15 2023-02-28 Saudi Arabian Oil Company Using acidic balls for acid stimulation in carbonate reservoirs
WO2024245872A1 (de) 2023-05-26 2024-12-05 Ems-Chemie Ag Polyamid-zusammensetuzung für bohrlochwerkzeug
US12584372B2 (en) * 2023-08-30 2026-03-24 Thru Tubing Solutions, Inc. Anchoring plugging devices to perforations

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2642142A (en) * 1949-04-20 1953-06-16 Stanolind Oil & Gas Co Hydraulic completion of wells
US2935129A (en) * 1957-04-05 1960-05-03 Jersey Prod Res Co Fracturing earth formation
US4716964A (en) * 1981-08-10 1988-01-05 Exxon Production Research Company Use of degradable ball sealers to seal casing perforations in well treatment fluid diversion
US5253709A (en) 1990-01-29 1993-10-19 Conoco Inc. Method and apparatus for sealing pipe perforations
US5990051A (en) * 1998-04-06 1999-11-23 Fairmount Minerals, Inc. Injection molded degradable casing perforation ball sealers
US6380138B1 (en) * 1999-04-06 2002-04-30 Fairmount Minerals Ltd. Injection molded degradable casing perforation ball sealers fluid loss additive and method of use
US6372378B1 (en) * 2000-06-30 2002-04-16 The United States Of America As Represented By The Secretary Of The Army Battery casing for armored vehicles
CA2502228C (en) * 2002-10-28 2011-04-19 Schlumberger Canada Limited Self-destructing filter cake
US20040231845A1 (en) * 2003-05-15 2004-11-25 Cooke Claude E. Applications of degradable polymers in wells
US7380600B2 (en) * 2004-09-01 2008-06-03 Schlumberger Technology Corporation Degradable material assisted diversion or isolation
US8231947B2 (en) * 2005-11-16 2012-07-31 Schlumberger Technology Corporation Oilfield elements having controlled solubility and methods of use
US7647964B2 (en) 2005-12-19 2010-01-19 Fairmount Minerals, Ltd. Degradable ball sealers and methods for use in well treatment
US7565929B2 (en) 2006-10-24 2009-07-28 Schlumberger Technology Corporation Degradable material assisted diversion
US7786051B2 (en) * 2006-12-07 2010-08-31 Schlumberger Technology Corporation Method of preventing or reducing fluid loss in subterranean formations
US7637320B2 (en) * 2006-12-18 2009-12-29 Schlumberger Technology Corporation Differential filters for stopping water during oil production
US20080196896A1 (en) * 2007-02-15 2008-08-21 Oscar Bustos Methods and apparatus for fiber-based diversion
US8728989B2 (en) * 2007-06-19 2014-05-20 Clearwater International Oil based concentrated slurries and methods for making and using same
US7503392B2 (en) 2007-08-13 2009-03-17 Baker Hughes Incorporated Deformable ball seat
US8020617B2 (en) * 2007-09-11 2011-09-20 Schlumberger Technology Corporation Well treatment to inhibit fines migration
US8936085B2 (en) * 2008-04-15 2015-01-20 Schlumberger Technology Corporation Sealing by ball sealers
US8561696B2 (en) * 2008-11-18 2013-10-22 Schlumberger Technology Corporation Method of placing ball sealers for fluid diversion
US9260935B2 (en) 2009-02-11 2016-02-16 Halliburton Energy Services, Inc. Degradable balls for use in subterranean applications
US8757260B2 (en) 2009-02-11 2014-06-24 Halliburton Energy Services, Inc. Degradable perforation balls and associated methods of use in subterranean applications
US9033041B2 (en) 2011-09-13 2015-05-19 Schlumberger Technology Corporation Completing a multi-stage well

Also Published As

Publication number Publication date
EP2396382B1 (en) 2014-04-16
MX2011008432A (es) 2011-10-10
AU2010212653B2 (en) 2014-07-10
CA2751318C (en) 2014-09-02
CA2751318A1 (en) 2010-08-19
US20120214715A1 (en) 2012-08-23
AU2010212653A1 (en) 2011-09-22
US20100200235A1 (en) 2010-08-12
US8757260B2 (en) 2014-06-24
BRPI1008342A2 (pt) 2016-02-23
WO2010092336A1 (en) 2010-08-19
EP2396382A1 (en) 2011-12-21
US8936084B2 (en) 2015-01-20

Similar Documents

Publication Publication Date Title
DK2396382T3 (da) Nedbrydelige perforationskugler og dermed forbundne fremgangsmåder til underjordisk anvendelse
DK2295646T3 (da) Boreindretning og borefremgangsmåde
DK2467173T3 (da) Sårbandager, fremgangsmåder til anvendelse heraf og fremgangsmåder til dannelse deraf
DK2482871T3 (da) Anti-bolus-kontrol metode og tilsvarende enhed
DK2480172T3 (da) Proteseanordning og styremetode
BR112012011910A2 (pt) dispositivo e método
SMT201600319B (it) Metodi di selezione e amplificazione di polinucleotidi
GB2479298C (en) Hole enlargement drilling device and methods for using same
DK2415771T3 (da) Indolizinderivat og anvendelse deraf til medicinske formål
BRPI1013655A8 (pt) dispositivo e método cirúrgico
DK3150721T3 (da) Pankreascancermarkører og detekteringsfremgangsmåder
DK2419732T3 (da) Prionfrie nanopartikelsammensætninger og fremgangsmåder
DK2393528T3 (da) Kateterindretning med et kateter og en aktiveringsindretning
DK2437830T4 (da) Anordning til lægemiddelleveringsindretning og lægemiddelleveringsindretning
EP2485211A4 (en) DISPLAY DEVICE AND METHOD
DK2494113T3 (da) Slidanordning til jordbehandlingsudstyr
DK2152373T3 (da) En forbedret tågefrembringende anordning og fremgangsmåde
DK2337837T3 (da) Alpha-amylase-blandinger og fremgangsmåder til anvendelse heraf
DK2170827T3 (da) Indolin-2-oner og aza-indolin-2-oner
DK2805746T3 (da) Alkylamido-forbindelser og anvendelser deraf
DK2309938T3 (da) Kryokirurgiske systemer og fremgangsmåder til anvendelse heraf
FI20105576L (fi) Kallionporauslaite ja menetelmä sen paikoittamiseksi
IT1393308B1 (it) Dispositivo e procedimento per localizzare scariche parziali.
BRPI1007909A2 (pt) método e dispositivo médico
PL2400807T3 (pl) Urządzenie planujące i sposób planowania