4. Mining or in situ disintegration of hard material
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Method for bulking full a retort

Mining or in situ disintegration of hard material – Tunnel recovery of fluid material
Patent

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Method for closing a drift between adjacent in situ oil shale re

Mining or in situ disintegration of hard material – Tunnel recovery of fluid material
Patent

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Method for control of geometry of fragmented mass in an situ oil

Mining or in situ disintegration of hard material – Tunnel recovery of fluid material
Patent

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Method for controlling void fraction distribution in an in situ

Mining or in situ disintegration of hard material – Tunnel recovery of fluid material
Patent

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Method for controlling void in an in situ oil shale retort

Mining or in situ disintegration of hard material – Tunnel recovery of fluid material
Patent

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Method for displacing large blocks of earth

Mining or in situ disintegration of hard material – Tunnel recovery of fluid material
Patent

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Method for establishing a combustion zone in an in situ oil shal

Mining or in situ disintegration of hard material – Tunnel recovery of fluid material
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Method for establishing a combustion zone in an in situ oil shal

Mining or in situ disintegration of hard material – Tunnel recovery of fluid material
Patent

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Method for explosive expansion toward horizontal free faces for

Mining or in situ disintegration of hard material – Tunnel recovery of fluid material
Patent

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Method for explosively expanding a pillar

Mining or in situ disintegration of hard material – Tunnel recovery of fluid material
Patent

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Method for explosively expanding a pillar for forming an in situ

Mining or in situ disintegration of hard material – Tunnel recovery of fluid material
Patent

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Method for forming a module of in situ oil shale retorts

Mining or in situ disintegration of hard material – Tunnel recovery of fluid material
Patent

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Method for forming an in situ oil shale retort

Mining or in situ disintegration of hard material – Tunnel recovery of fluid material
Patent

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Method for forming an in situ oil shale retort

Mining or in situ disintegration of hard material – Tunnel recovery of fluid material
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Method for forming an in situ oil shale retort in differing grad

Mining or in situ disintegration of hard material – Tunnel recovery of fluid material
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Method for forming an in situ oil shale retort with controlled s

Mining or in situ disintegration of hard material – Tunnel recovery of fluid material
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Method for forming an in situ oil shale retort with explosive ex

Mining or in situ disintegration of hard material – Tunnel recovery of fluid material
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Method for forming an in situ oil shale retort with horizontal f

Mining or in situ disintegration of hard material – Tunnel recovery of fluid material
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Method for forming uniform flow rubble bed

Mining or in situ disintegration of hard material – Tunnel recovery of fluid material
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Method for fragmenting oil shale formation

Mining or in situ disintegration of hard material – Tunnel recovery of fluid material
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