DEVICE AND PROCESS FOR STIMULATION AND CLEANING OF A LIQUID-FILLED WELL
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United States of America Patent
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Issued Date -
Oct 15, 2015
app pub date -
Dec 3, 2013
filing date -
Dec 13, 2012
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Abstract
The invention relates to a device for cleaning a liquid-filled well (10) comprising a tubular vessel (21), the interior of which contains at least one combustion chamber (30) and at least one hollow chamber (25) arranged in longitudinal succession, the combustion chamber (30) being at least partly filled with a fuel (31) and having an igniter (32), and the vessel (21) having at least one inflow orifice through which well fluid can flow from the outside into the vessel (21), wherein the at least one inflow orifice is provided with a closure device (42) comprising at least one closure element which loses its integrity on exceedance of a given temperature, such that the closure device (42) opens. The invention further relates to a process for stimulating and cleaning a liquid-filled well using an inventive device.
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