| 摘要 |
When production testing a permeable first formation (4), fluid flowing out therefrom is subjected to a pressure measurement and a flow rate control . In order to avoid bringing up the fluid flowing out during the production te st to surface position where the fluid's inherent explosion and fire risk as we ll as poisonousness would cause substantial problems, a fluid flow path arrange d for fluid transfer between the formations (4, 6) is established between said first formation (4) to be production tested and a second permeable formation (6), said fluid flow path which, in a suitable apparatus, is constituted by a channel- forming pipe (8). From this channel second permeable formation (6) receives said flu id and keeps it for some time. In the position of use, the apparatus is assigne d sealing means, i.a. annulus packers (10, 11, 12) which are placed such that fluid flow between the formations (4, 6) is limited to only follow said fluid flow path.
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