Patent ID: 9574438
Date: 2017-02-21
CPC Classifications: E21B,G01L

Claim:
1. A method of measuring production contribution from a zone of a wellbore comprising: inserting into a wellbore a flow device, the flow device comprising a central bore that extends from a first end to a second end, a first cylindrical portion having a first outer diameter, a second cylindrical portion having a second outer diameter smaller than the first outer diameter, a first pressure sensor configured to measure a first pressure at an exterior of the first portion, and a second pressure sensor configured to measure a second pressure at an exterior of the second portion, wherein first pressure sensor comprises a first plurality of pressure sensors configured to measure the first pressure at the exterior of the first portion and the second pressure sensor comprises a second plurality of pressure sensors configured to measure the second pressure at the exterior of the second portion; positioning the flow device adjacent to a zone of the wellbore; measuring the first pressure with the first pressure sensor; measuring the second pressure with the second pressure sensor; and measuring the first pressure at a top band within the wellbore, measuring the first pressure at a middle band within the wellbore, measuring the first pressure at a bottom band within the wellbore, measuring the second pressure at the top band within the wellbore, measuring the second pressure at the middle band within the wellbore, and measuring the second pressure at the bottom band within the wellbore, wherein at least one of the first plurality of pressure sensors and at least one of the second plurality of pressure sensors is located in the top band within the wellbore, wherein at least one of the first plurality of pressure sensors and at least one of the second plurality of pressure sensors is located in the middle band within the wellbore, and at least one of the first plurality of pressure sensors and at least one of the second plurality of pressure sensors is located in the bottom band within the wellbore; and determining fluid flow in the wellbore adjacent to the zone from the first pressure and the second pressure, wherein the entire fluid flow in the wellbore flows around an exterior of the flow device.