Patent ID: 8692183

Claim:
An apparatus for estimating a property of a downhole fluid, the apparatus comprising: a carrier that is conveyable in a borehole; a test cell carried by the carrier for capturing the downhole fluid; an integrated circuit positioned inside of the test cell; an electromagnetic energy source that emits an electromagnetic energy beam having a first bandwidth; a first filter formed on the integrated circuit in electromagnetic energy communication with the first electromagnetic energy beam, that filters the electromagnetic energy beam and passes through a portion of the electromagnetic energy beam having a second bandwidth that is narrower than the first bandwidth; a flow path formed in the integrated circuit wherein the flow path contains the downhole fluid in the test cell and is in electromagnetic energy communication with the portion of the electromagnetic energy beam having the second bandwidth; and an electromagnetic energy detector in electromagnetic energy communication with a portion of the electromagnetic energy beam that has interacted with the downhole fluid for estimating the property of the downhole fluid.