System of chemical in-flow tracers for early water breakthrough detection

A system for detecting water breakthrough at an oil and/or gas production site comprising a) two or more oil and/or gas producing wells and/or well strings, b) two or more production tubings producing the gas and/or oil from a reservoir in a geological formation, c) two or more well-heads, d) one or more manifold(s) combining two or more flow lines, e) optionally inlets from additional production wells, f) a down-stream main production line producing the gas and/or oil from the one or more manifold(s), wherein the system comprises:

• (i) one or more tracer component(s) each comprising one or more chemical in-flow tracer(s), wherein the one or more tracer component(s) is/are a trace chamber, an inserted coupon, or any combination thereof,
• wherein the trace chamber is connected to the two or more flow lines via two or more tubings allowing for fluid communication between the trace chamber and the two or more flow-lines, allowing for exposure of the one or more chemical in-flow tracer(s) to the gas and/or oil in the trace chamber, and/or
• wherein the inserted coupon comprising the one or more chemical in-flowtracer(s) is installed in a jacket of the one or more flow-lines and wherein the inserted coupon comprising the one or more chemical in-flow tracer(s) is exposed to the gas and/or oil being produced;
• and
• (ii) a detecting device, sampling point or sampling system for the detection of the one or more chemical in-flow tracer(s).