High speed cement bond logging and interactive targeted intervention

a high-speed, targeted intervention technology, applied in survey, borehole/well accessories, construction, etc., can solve the problems of invasive and expensive squeeze methods, and achieve the effect of reducing interference among the transducers
US20130255937A1Inactive Publication Date: 2013-10-03SIEMENS MEDICAL SOLUTIONS USA INC +2
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Patent Information

Authority / Receiving Office
US · United States
Current Assignee / Owner
SIEMENS MEDICAL SOLUTIONS USA INC
Publication Date
2013-10-03
Estimated Expiration
Not applicable · inactive patent

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Abstract

A method for cement bond logging and targeted intervention, including lowering a cylindrical n×m array of ultrasound (US) transducers into a well, firing the US transducers to transmit US signals into a well casing, converting reflected US signals received by the transducers into electronic form and transmit the converted signals to a control unit, analyzing the converted signals to detect holidays, if a holiday is detected, determining a position and angle of the holiday with respect to the transducers, and applying a high intensity focused ultrasound (HIFU) signal to the well casing to fill the holiday.
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Description

CROSS REFERENCE TO RELATED UNITED STATES APPLICATIONS

[0001] This application claims priority from “Device for High Speed Cement Bond Logging and interactive Targeted intervention”, U.S. Provisional Application No. 61 / 619,026 of Barnes, et al., filed Apr. 2, 2012, the contents of which are herein incorporated by reference in their entirety.TECHNICAL FIELD

[0002] This application is directed to the application of imaging techniques for monitoring cement bond formation during curing.DISCUSSION OF THE RELATED ART

[0003] When completing a well, such as an oil well or a water well, the well casing is typically stabilized through the introduction of cement, potentially with additives, into the annulus formed between the borehole and the casing. The primary function of this activity is to enforce zonal isolation. That is, the cement forms a seal that prevents communication (leaks) between different formations as well as with respect to the surface.

[0004] In the process of cementing, “holidays” (...

Claims

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