Apparatus for monitoring at least a portion of a wellbore
There is described an apparatus for monitoring at least a portion of a wellbore, the apparatus comprising a body including at least an anchoring means for releasably positioning the apparatus with respect to a tubular in the wellbore. The apparatus comprises detecting means for detecting at least one parameter of a substance in the portion, and in that the apparatus comprises transceiver means configured to at least transmit data related to the parameter.
1. An apparatus for monitoring at least a portion of a wellbore that includes a substance and a tubular located in the wellbore, the apparatus comprising a body comprising an anchoring means for releasably positioning the apparatus with respect to the tubular in the wellbore, a detecting means for detecting at least one parameter of the substance, and a transceiver means configured to transmit data related to the parameter, wherein the body comprises a mandrel comprising an axially extending, through-going, internal bore having respective first and second openings, a releasable sealing means, and wherein the anchoring means and the releasable sealing means are arranged on the body between the openings and configured to abut against a portion of an internal wall of the tubular.
2. Apparatus of claim 1 , wherein at least an axial portion of the bore is filled with a sealing and removable material, whereby the apparatus is a plugging device.
3. Apparatus of claim 1 , wherein the transceiver means comprises a wireless transmitter and receiver.
4. Apparatus of claim 1 , wherein the detecting means comprises a sensor.
5. Apparatus of claim 1 , wherein a sealing and removable material is extending axially through the body.
6. Apparatus of claim 5 , wherein the sealing and removable material comprises a capillary tube extending an axial distance inside the sealing and removable material, and having a first, open, end in the vicinity of the through-going bore second opening, and a second, closed end inside the sealing and removable material.
7. Apparatus of claim 1 , wherein drilling alignment means are arranged in or near the first opening.
8. Apparatus of claim 7 , wherein the drilling alignment means comprises one or both of a circular element arranged around the first opening or a funnel-shaped profile in an upper portion of the bore.
9. A wellbore comprising a wellbore barrier comprising an apparatus according to claim 5 .
10. Wellbore of claim 9 , comprising a plurality of barriers and a plurality of apparatuses, wherein an apparatus in one barrier is configured to communicate with an apparatus in another barrier via the transceiver means.
11. A method of transmitting signals in a wellbore by means of a plurality of apparatuses as defined by claim 1 , further comprising emitting a unique identification signal from a first apparatus; and receiving the unique identification signal at a second apparatus arranged farther uphole than the first apparatus.
12. The method of claim 11 , further comprising transmitting the signal via a third apparatus arranged intermediate the first and second apparatuses.
13. The method of claim 11 , further comprising transmitting the signal past a third, non-functioning apparatus.
14. The method of claim 11 , further comprising emitting a data signal related to a parameter sensed by the detecting means by the first apparatus and receiving the data signal by the second apparatus.