Patent Number: 6,305,470

Title: Method and apparatus for production testing involving first and second permeable formations

Abstract: When production testing a permeable first formation, fluid flowing out from the first formation is subjected to a pressure measurement and a flow rate control. In order to avoid bringing up the fluid flowing out during the production test to a surface position, where the fluid's inherent explosion and fire risk as well as poisonousness could cause substantial problems, a fluid flow path is arranged for fluid transfer only between the first and second formations. The fluid flow path which, in a suitable apparatus, is constituted by a channel-forming pipe. From this channel, the second permeable formation receives the fluid and keeps it for some time. In the position of use, the apparatus is assigned sealing devices such as annulus packers, which are placed such that fluid flow between the formations is limited to only follow the fluid flow path.

Inventors: Woie; Rune (Hafrsfjord, NO)

Assignee: Shore-Tec AS

International Classification: E21B 49/00 (20060101); E21B 047/00 (); E21B 049/08 ()

Expiration Date: 10/23/2018