Downhole tool for detecting features in a wellbore, a system, and a method relating thereto

A method of deploying a downhole tool having a downhole end and an uphole end, comprising:

• positioning the downhole tool within a subterranean formation;
• wherein the downhole tool comprises:
• an anchor assembly proximate to the downhole end;
• and
• a first flowmeter assembly proximate to the anchor assembly and a second flowmeter assembly uphole of the first flowmeter assembly wherein each of the first and second flowmeters comprise a respective first flowmeter and second flowmeter having a throughbore generally aligned with an axis of the respective flowmeter;
• and
• a coil comprising a waveguide at an uphole end, wherein the waveguide is secured at the anchor assembly and extends from the coil through the respective throughbore of the first and second flowmeters, and is secured at the anchor assembly;
• retracting the coil along with the first flowmeter assembly and the second flowmeter assembly during positioning;
• establishing a pressure for positioning the first flowmeter assembly at a first location and another pressure for positioning the second flowmeter assembly at a second location along a fluid path;
• retrieving an uphole end of the waveguide from the downhole tool to an instrument for establishing communication.

A downhole system for detecting features in a wellbore, comprising:

• a downhole tool having a downhole end and an uphole end, the downhole tool comprising:
• an anchor assembly proximate to the downhole end;
• a plurality of flowmeter assemblies comprising a first flowmeter assembly proximate to the anchor assembly and a second flowmeter assembly uphole of the first flowmeter assembly wherein the first and second flowmeter assemblies are independently detachable from the downhole tool and deployable at different locations in a wellbore and each of the first and second flowmeter assemblies comprising a respective first and second flowmeters having a throughbore generally aligned with an axis of the flowmeter;
• a coil comprising a waveguide uphole of the plurality of flowmeter assemblies, wherein the waveguide is secured at the anchor assembly and is extended within and past the respective throughbore of the first and second flowmeters;
• an instrument comprising an interrogator for directing light into the waveguide;
• and
• a conveyor proximate to the coil for retracting the plurality of flowmeter assemblies.

A downhole tool having a downhole end and an uphole end, comprising:

• an anchor assembly positioned proximate to the downhole end;
• at least one flowmeter assembly selectively positionable from the downhole tool wherein the at least one flowmeter assembly comprises a flowmeter having a throughbore generally aligned with an axis of the flowmeter;
• and
• a waveguide positioned proximate to the uphole end, wherein the at least one flowmeter assembly is positioned proximate to the anchor, wherein the waveguide extends through the throughbore and is secured at the anchor assembly,
• wherein the at least one flowmeter assembly comprises an inner cylinder disposed within an outer housing wherein the inner cylinder comprises one or more fluidic oscillators formed on an outer surface and
• wherein the at least one flowmeter assembly further comprises a pressure activated release.

A downhole tool having a downhole end and an uphole end, comprising:

• an anchor assembly positioned proximate to the downhole end;
• at least one flowmeter assembly selectively positionable from the downhole tool wherein the at least one flowmeter assembly comprises a flowmeter having a throughbore generally aligned with an axis of the flowmeter;
• and
• a waveguide positioned proximate to the uphole end, wherein the at least one flowmeter assembly is positioned proximate to the anchor, wherein the waveguide extends through the throughbore and is secured at the anchor assembly,
• wherein the at least one flowmeter assembly comprises a pressure activated release comprising an anchor.