公开(公告)号：US20190055839A1

公开(公告)日：2019-02-21

申请号：US16075052

申请日：2016-04-06

Applicant: RESMAN AS

Inventor： Torger SKILLINGSTAD ,  Christian ANDRESEN

IPC: E21B47/10 ,  E21B43/14 ,  E21B23/01 ,  E21B23/04 ,  E21B33/12

Abstract: A method and a system for tracer marking and monitoring of a petroleum well with one or more production zones includes placing tracers at desired zones in a petroleum well with a production tubing, a casing or a liner with perforations at the zones and including lowering one or more patch-tubes into the well to a desired depth in a way that the one or more patch-tubes extends into the production tubing along on or more of the zones wherein the patch is divided in one or more patch zones along the patch, each patch zone includes one or more tracer sources with one or more unique tracers arranged to release to produced fluids, in desired positions, one or more radial expandable patch portions arranged to be expanded, upon desire, to seal against the tubing, anchoring an anchor of the patch to the tubing, allowing the well to produce well fluids and monitoring the production flow with respect to tracers.