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Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 DEF

A well or borehole into which corrosive or otherwise dangerous liquids can be injected and left for disposal.  2, record 1, English, - injection%20well

Record number: 1, Textual support number: 1 CONT

There are two forms of injection into deep geologic formations that have been suggested or used for LLW [low-level radioactive wastes] disposal :hydrofracture and deep well injection. Both methods are primarily useful only for liquid or finely ground wastes. They both take precautions to prevent contaminating useful aquifers by carefully selecting the geologic formations into which the waste is injected.  3, record 1, English, - injection%20well

Record number: 1, Textual support number: 1 OBS

See also "waste disposal shaft."  4, record 1, English, - injection%20well

Record 1,  Textual support,  French

Record number: 1, Textual support number: 1 OBS

Voir aussi «puits de stockage».  2, record 1, French, - puits%20d%27injection

Record 1,  Textual support,  Spanish

Record 2,  Textual support,  English

Record number: 2, Textual support number: 1 CONT

There are two forms of injection into deep geologic formations that have been suggested or used for LLW [low-level radioactive waste] disposal :hydrofracture and deep well injection.... They both take precautions to prevent contaminating useful aquifers by carefully selecting the geologic formations into which the waste is injected.... Generally, hydrofracture involves injection of a mixture of waste and liquid grouting materials under high pressure into a deep layered rock formation such as shale. The injected material causes layers of rock to separate and the material forms flat "sheets" extending out from the injection well.  1, record 2, English, - layered%20rock%20formation

Record 2,  Textual support,  French

Record 2,  Textual support,  Spanish

Record 3,  Textual support,  English

Record number: 3, Textual support number: 1 CONT

There are two forms of injection into deep geologic formations that have been suggested or used for LLW disposal :hydrofracture and deep well injection. Both methods are primarily useful only for liquid or finely ground wastes. They both take precautions to prevent contaminating useful aquifers by carefully selecting the geologic formations into which the waste is injected. Hydrofracture disposal also uses a very insoluble waste form. Generally, hydrofracture involves injection of a mixture of waste and liquid grouting materials under high pressure into a deep layered rock formation such as shale. The injected material causes layers of rock to separate and the material forms flat "sheets" extending out from the injection well. The grout causes some surface uplift near the injection well.  1, record 3, English, - hydrofracture%20disposal

Record number: 3, Textual support number: 2 CONT

Because of difficulty in transporting liquid wastes safely, the hydrofracture facility must be located near the source of the waste. A hydrofracture site requires large, generally impermeable (to nearby aquifers) layered formations that fracture horizontally. The surface area needed and visual impact of a hydrofracture facility are relatively small. Major barriers to nuclide release are the grout (waste form) and the geologic formation used. Perhaps the greatest problem with hydraulic injection is that there is little control of fracture propagation and it is not possible to define the final geometry of the grout/waste sheets from the surface.  2, record 3, English, - hydrofracture%20disposal

Record number: 3, Textual support number: 3 CONT

Hydrofracturing would not be appropriate for Eldorado wastes because of the large volume of waste and the questionable ability to dry and pulverize it to the necessary fineness (40 mesh or smaller).  2, record 3, English, - hydrofracture%20disposal

Record 3,  Textual support,  French

Record 3,  Textual support,  Spanish

Record 4,  Textual support,  English

Record number: 4, Textual support number: 1 CONT

Having participated in a single NEA ocean disposal operation, the Federal Republic of Germany has chosen the policy that all radioactive waste will be placed in deep geological formations. The Asse salt mine, located in a salt diapir in Lower Saxony, has served as the national R&D facility on disposal of all types of radioactive waste.  1, record 4, English, - deep%20geological%20formation

Record number: 4, Textual support number: 2 CONT

There are two forms of injection into deep geologic formations that have been suggested or used for LLW disposal :hydrofracture and deep well injection.  1, record 4, English, - deep%20geological%20formation

Record number: 4, Textual support number: 1 OBS

"geological": Pertaining to or related to geology. The choice between this term and "geologic" is optional, and may be made according to the sound of a spoken phrase sentence. "Geological" is generally preferred in the names of surveys and societies, and in English and Canadian usage.  2, record 4, English, - deep%20geological%20formation

Record 4,  Textual support,  French

Record number: 4, Textual support number: 1 CONT

La tâche A5 «Sûreté du stockage» est essentiellement composée du projet PAGIS, commencé en 1982 avec le concours de ANDRA/IPSN (option granite), GSF (option sel), CEN/CK (option argile), NRPB (option sédiments marins), du CCR, et de divers autres laboratoires. Il étudie la sûreté du stockage en formations géologiques profondes.  3, record 4, French, - formation%20g%C3%A9ologique%20profonde

Record number: 4, Textual support number: 1 OBS

On trouve aussi l'expression «substratum profond», dans une illustration de la configuration géologique type pour un site de stockage recherchée par l'ANDRA, dans la Revue générale nucléaire, 1988, numéro 4, page 315.  4, record 4, French, - formation%20g%C3%A9ologique%20profonde

Record 4,  Textual support,  Spanish

Record 5,  Textual support,  English

Record number: 5, Textual support number: 1 CONT

Because of difficulty in transporting liquid wastes safely, the hydrofracture facility must be located near the source of the waste. A hydrofracture site requires large, generally impermeable (to nearby aquifers) layered formations that fracture horizontally. The surface area needed and visual impact of a hydrofracture facility are relatively small. Major barriers to nuclide release are the grout (waste form) and the geologic formation used. Perhaps the greatest problem with hydraulic injection is that there is little control of fracture propagation and it is not possible to define the final geometry of the grout/waste sheets from the surface.  2, record 5, English, - hydrofracture%20facility

Record number: 5, Textual support number: 2 CONT

At Oak Ridge, Tennessee, the US Department of Energy has used hydrofracturing in shale formations for disposal of some liquid wastes. However, monitoring revealed that radionuclides are moving from the hydrofracture facility faster than expected and that operation has been stopped.  3, record 5, English, - hydrofracture%20facility

Record 5,  Textual support,  French

Record number: 5, Textual support number: 1 OBS

Voir aussi «fracturation hydraulique».  2, record 5, French, - installation%20de%20fracturation%20hydraulique

Record 5,  Textual support,  Spanish

Record 6,  Textual support,  English

Record number: 6, Textual support number: 1 CONT

There are two forms of injection into deep geologic formations that have been suggested or used for LLW disposal :hydrofracture and deep well injection.... Generally, hydrofracture involves injection of a mixture of waste and liquid grouting materials under high pressure into a deep layered rock formation such as shale. The injected material causes layers of rock to separate and the material forms flat "sheets" extending out from the injection well. The grout causes some surface uplift near the injection well. Hydrofracture has been used at the Oak Ridge National Laboratory since the 1960's to dispose of intermediate level liquid radioactive wastes. Hydrofracture tests were also conducted at West Valley....  1, record 6, English, - hydrofracture%20test

Record 6,  Textual support,  French

Record 6,  Textual support,  Spanish

Record 7,  Textual support,  English

Record number: 7, Textual support number: 1 CONT

At Oak Ridge, Tennessee, the US Department of Energy has used hydrofracturing in shale formations for disposal of some liquid wastes. However, monitoring revealed that radionuclides are moving from the hydrofracture facility faster than expected and that operation has been stopped.  1, record 7, English, - disposal%20of%20liquid%20wastes

Record 7,  Textual support,  French

Record 7,  Textual support,  Spanish

Record 8,  Textual support,  English

Record number: 8, Textual support number: 1 OBS

See also "hydrofracture disposal" and "hydrofracture facility".  2, record 8, English, - hydrofracturing%20in%20shale%20formations

Record 8,  Textual support,  French

Record 8,  Textual support,  Spanish