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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

Inactive Publication Date: 2013-10-03
SIEMENS MEDICAL SOLUTIONS USA INC +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent text describes a system where the US transducers are triggered in a way that reduces interference between them. The technical effect of this is that it improves the accuracy and reliability of the system.

Problems solved by technology

Squeezing is an expensive, invasive method in which the casing is perforated and new cement forced in to displace the holidays.

Method used

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  • High speed cement bond logging and interactive targeted intervention
  • High speed cement bond logging and interactive targeted intervention
  • High speed cement bond logging and interactive targeted intervention

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Embodiment Construction

[0024]Exemplary embodiments of the invention as described herein generally include systems for improving the process of cementing, while the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail. It should be understood, however, that there is no intent to limit the invention to the particular forms disclosed, but on the contrary, the invention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

[0025]As used herein, the term “image” refers to multi-dimensional data composed of discrete image elements (e.g., pixels for 2-dimensional images and voxels for 3-dimensional images). The image may be, for example, a medical image of a subject collected by computer tomography, magnetic resonance imaging, ultrasound, or any other medical imaging system known to one of skill in the art. The image may al...

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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.

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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Application Information

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IPC IPC(8): E21B33/14E21B47/00
CPCE21B47/0005E21B33/14E21B47/005
Inventor BARNES, STEPHEN R.O'DONNELL, THOMASMALLINSON, THEODORE JAMES
Owner SIEMENS MEDICAL SOLUTIONS USA INC
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