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1. WO1997031379 - TREATMENT OF RADIOACTIVE MATERIAL

Publication Number WO/1997/031379
Publication Date 28.08.1997
International Application No. PCT/GB1996/000905
International Filing Date 15.04.1996
Chapter 2 Demand Filed 20.09.1997
IPC
C09K 8/16 2006.01
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
KMATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
8Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
02Well-drilling compositions
04Aqueous well-drilling compositions
14Clay-containing compositions
16characterised by the inorganic compounds other than clay
E21B 47/04 2012.01
EFIXED CONSTRUCTIONS
21EARTH OR ROCK DRILLING; MINING
BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
47Survey of boreholes or wells
04Measuring depth or liquid level
G21F 9/28 2006.01
GPHYSICS
21NUCLEAR PHYSICS; NUCLEAR ENGINEERING
FPROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
9Treating radioactively contaminated material; Decontamination arrangements therefor
28Treating solids
CPC
C09K 8/16
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
8Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
02Well-drilling compositions
04Aqueous well-drilling compositions
14Clay-containing compositions
16characterised by the inorganic compounds other than clay
E21B 47/053
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
47Survey of boreholes or wells
04Measuring depth or liquid level
053using radioactive markers
G21F 9/28
GPHYSICS
21NUCLEAR PHYSICS; NUCLEAR ENGINEERING
FPROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
9Treating radioactively contaminated material; Decontamination arrangements therefor
28Treating solids
Applicants
  • SCOTOIL GROUP PLC [GB]/[GB]
Inventors
  • DAVIDSON, Ian, David, Farquhar
Agents
  • FITZPATRICKS
Priority Data
9603947.424.02.1996GB
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) TREATMENT OF RADIOACTIVE MATERIAL
(FR) TRAITEMENT DE MATIERE RADIOACTIVE
Abstract
(EN)
A process for treating naturally occurring radioactive material (NORM) comprises use of NORM as a mud constituent in a drilling mud manufacturing process and particle size reduction of the NORM particles during or before that process to attain a selected particle size corresponding to that of a particulate drilling mud component, said particle size reduction being optionally accompanied by additional mixing, if necessary, of the NORM and mud component particles, the aim of said use being the achievement of irreversible dilution of the NORM particles in said component to nullify the radioactive nature thereof.
(FR)
Un procédé de traitement de matière radioactive d'origine naturelle (MRON) comprend l'utilisation de MRON en tant que constituant de boue dans un procédé de production de boue de forage et la comminution des particules de MRON pendant ou avant ce procédé afin d'obtenir une grosseur particulaire sélectionnée correspondant à celle d'un constituant de boue de forage particulaire, la comminution des particules étant facultativement accompagnée d'un mélange additionnel, si cela s'avère nécessaire, des particules de MRON et du constituant de boue. L'objet de cette invention est d'effectuer la dilution irréversible des particules de MRON dans ledit constituant pour annuler leur caractère radioactif.
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