METHOD OF WITHDRAWAL OF OIL FROM WORKED OUT OIL DEPOSITS Russian patent published in 2009 - IPC E21B43/263 

Abstract RU 2362873 C2

FIELD: oil and gas production.

SUBSTANCE: invention refers to oil industry and can be implemented at oil fields to rejuvenate oil yield of worked-out deposits. The essence of the invention is as follows: there is generated pressure in oil bearing strata by loading explosive charges and their simultaneous blasting in oil producing wells forming rows from boundary of the deposit to its opposite boundary. Also loading of explosive charges and their simultaneous blasting first is performed in two rows, between which a row of not exploded wells is left; withdrawal of produced free oil is carried out through these wells. Further charges are loaded and simultaneously exploded in a row of wells situated next to the row of not exploded wells, through which produced oil is also withdrawn. Such alternation is applied to the end boundary of the deposit.

EFFECT: facilitating increased efficiency of method due to its simplification and reduced cost.

1 dwg

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RU 2 362 873 C2

Authors

Zingel' Efim Meerovich

Dates

2009-07-27Published

2007-10-16Filed