Method of detecting fluid in-flows downhole,申请号US201013148424-传众专利搜索

Method of detecting fluid in-flows downhole

申请公布号：US8245780(B2)

申请号：US201013148424

申请日期：2010.02.09

申请公布日期：2012.08.21

申请人：

FIDAN ERKAN;MOLENAAR MENNO MATHIEU;OZ BORA;MINCHAU MICHAEL CHARLES;SHELL OIL COMPANY

发明人：FIDAN ERKAN;MOLENAAR MENNO MATHIEU;OZ BORA;MINCHAU MICHAEL CHARLES

分类号：E21B47/00

主分类号：E21B47/00

摘要：A method of measuring fluid in-flow in a region of interest in a wellbore comprises deploying a fiber optic cable concurrently with placement of a downhole tubular, transmitting a light signal along the cable and receiving a reflected signal from the region of interest, and interpreting the received signal to obtain information about fluid flowing in the region of interest. The wellbore may include a horizontal portion. The received signal may also be interpreted by assessing amplitude and frequency spectra across array of channels, conditioning the received signal by removing at least a portion of the signal that is not related to flow, assessing flow regimes across depths and times, calculating axial flow/s within the wellbore using relationships for axial flow, and calculating flow into or out of the wellbore at one or more points using relationships for flow through an orifice.