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Real-time completion monitoring with acoustic waves

By propagating acoustic tube waves in downhole equipment and monitoring their attenuation and velocity changes, real-time monitoring of downhole fluid flow solves the problem of well performance monitoring in deepwater wells and enables real-time optimization of well performance and cost reduction.

Active Publication Date: 2010-11-03
SHELL INT RES MAATSCHAPPIJ BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The high cost of deepwater well installations (sand screens, etc.) and interventions may justify the existence of smart monitoring tools that would not be economical in other settings

Method used

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  • Real-time completion monitoring with acoustic waves
  • Real-time completion monitoring with acoustic waves
  • Real-time completion monitoring with acoustic waves

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Embodiment Construction

[0022] It can be understood that the use of singular terms such as but not limited to "one" herein is not intended to limit the number of items. Also, the use of relational terms such as but not limited to "top", "bottom", "left", "right", "upper", "lower", "lower", "upper" and "side" are used in writing The description specifically refers to the drawings clearly and is not intended to limit the scope of the present invention or the appended claims. In addition, in this description, the terms "upper" and "lower", "upward" and "downward", "upstream" and "downstream" and other similar terms are used to indicate the relative position of a given point or element above or below In order to more clearly describe some embodiments of the present invention. However, when applied to devices and methods for deviated or horizontal wells, these terms may refer to left-to-right, right-to-left, or some other appropriate relationship. The discussion of each singular element may include multi...

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PUM

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Abstract

A method for monitoring fluid flow through a downhole device, comprises a) providing an acoustic tube wave in fluid in the device; b) measuring the acoustic tube wave after it has passed through the fluid in the device; and c) assessing the permeability of the device by measuring the attenuation of the acoustic signal. Changes in velocity of the acoustic signal may also be measured. The device may be a permeable downhole device such as a sand screen the measurements in step b) are made using a plurality of sensors deployed in the hole. The method may further including the step of cross-correlating a signal received at a first receiver with signals received at additional sensors so as to obtain an effective response as if the signal had been emitted from a source at the position of said first receiver.

Description

[0001] Cross references to related applications [0002] This application claims priority of U.S. Application Serial No. 61 / 004877 filed on November 30, 2007 and U.S. Application Serial No. 61 / 058944 filed on June 5, 2008, and each of these publications is hereby incorporated. All of one is disclosed for reference. [0003] Statement regarding federally funded research or development [0004] Not applicable. Technical field [0005] The invention disclosed and taught herein generally relates to the field of underground well monitoring, and more specifically, to methods and systems for real-time acoustic monitoring of well completions and surrounding underground areas. Background technique [0006] Well completions are at the center of deepwater production and constitute a large part of the total cost of the well. Put a lot of multidisciplinary effort into their design. This is in stark contrast to the production phase where little information is available to detect problems, optimi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B47/10
CPCG01N29/11E21B47/00G01N2015/084E21B47/101G01N15/08E21B49/087E21B43/00G01N29/07E21B47/107
Inventor A·V·巴库林
Owner SHELL INT RES MAATSCHAPPIJ BV
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