Tracer injections
AssigneeResman AS
InventorJon Eric LAURITZEN
Life of this patent
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Abstract
The invention is a petroleum well tracer injection and monitoring method comprising the steps of providing a one or more curable liquid doped with one or more tracer, arranging said one or more liquid in an intervention liquid injecting tool, running the injection tool into a production tubing in a petroleum well to one or more desired injection position along the tubing, actuating the injection tool to apply one or more portions of the tracer doped liquid at said one or more desired positions, each said portion deposited to form a material deposition at a tubing wall of said tubing, allowing the well to produce and monitoring the tracers in the production flow and a tool to perform the injection.
Claims31
A petroleum well tracer injection method comprising the steps of
- providing a one or more curable liquid (1,1i) doped with one or more tracer (Tr, Tri)
- arranging said one or more liquid (1) in an intervention liquid injecting tool (3, 303)
- a)—running the injection tool (3) into a production tubing (4) in a petroleum well (5) to one or more desired injection position (P1,P2, . . . ) along the tubing (4)
- b)—actuating the injection tool (3) to apply one or more portions (11i, 112, . . . ) of the tracer doped liquid (1, 1i) at said one or more desired positions (P1, P2, . . . ), each said portion (11i) deposited to form a material deposition (12i) at a tubing wall (41) of said tubing (4)
- allowing the deposition (12) to cure,
- allowing the well to produce
- monitoring the tracers (Tr1, Tr2 . . . Tri) in the production flow (F)
- analyzing the occurrence of tracers qualitatively and/or quantitatively.
An intervention tracer injecting tool (3) for placing of one or more portions of tracers sources (T1, T2, . . . ) to one or more desired injection position (P1,P2, . . . ) along a production tubing (4) in a petroleum well (5) comprising:
- one or more liquid containers (31, 31i) with
- one or corresponding liquid outlets (34, 34i) and
- one or more well engaging means (33, 33i) having a corresponding isolating gasket (35, 35i)
- one or more actuator means (36) arranged for activating
- one or more delivery means (37, 37i)
- for delivering one or more portions (11, 11i) of one or more tracer doped liquids (1, 1i) forming deposits (12, 12i) of tracer sources (T1, T2, . . . ) at the desired positions (P1, P2 . . . ) along the tubing (4) and/or to different sectors (PS, PSi) of the circumference of the tubing (4).
Dependencies are inferred from the claim text.