Title:
METHOD FOR TESTING THE TIGHTNESS OF CAVITIES AND DEVICE FOR DECREASING CONVECTION AND DIFFUSION FLOW
Document Type and Number:
WIPO Patent Application WO/2013/131914
Kind Code:
A3
Abstract:
The present invention relates in particular to a method for testing the tightness of cavities (4), which are already filled with a stored gas, by charging the cavity (4) with a test gas. According to the invention, in this case, at least the following steps are provided: - overlayering the stored gas situated in the cavity (4) with a test gas of a predefined amount, in such a manner that a barrier layer forms between the stored gas and the test gas, wherein the test gas has a lower density than the stored gas, - releasing the test gas after a predetermined time, - balancing the amount of the test gas. A further aspect is providing a device for decreasing the convection and diffusion flow between a stored gas situated in a cavity and a test gas.
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Inventors:
ABDEL HAG AMER (DE)
Application Number:
PCT/EP2013/054401
Publication Date:
July 17, 2014
Filing Date:
March 05, 2013
Export Citation:
Assignee:
UNTERGRUNDSPEICHER UND GEOTECHNOLOGIE SYSTEME GMBH (DE)
International Classes:
E21B47/10; G01M3/28
Other References:
"Solution Mining Research Institute (SMRI) Research Project Report 95-0001-S", 1995, SOLUTION MINING RESEARCH INSTITUTE, article F. CROTOGINO: "SMRI Reference for External Well Mechanical Integrity Testing / Performance, Data Evaluation and Assessment", pages: 1-32, 62-60, XP055045661
Attorney, Agent or Firm:
EMIG, Ralf (Postfach 15 09 20, Berlin, DE)
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