EA200700265A1 - METHOD AND SYSTEM FOR LOCALIZING ANOMALY AHEAD OF DEVICE - Google Patents

METHOD AND SYSTEM FOR LOCALIZING ANOMALY AHEAD OF DEVICE

Info

Publication number
EA200700265A1
EA200700265A1 EA200700265A EA200700265A EA200700265A1 EA 200700265 A1 EA200700265 A1 EA 200700265A1 EA 200700265 A EA200700265 A EA 200700265A EA 200700265 A EA200700265 A EA 200700265A EA 200700265 A1 EA200700265 A1 EA 200700265A1
Authority
EA
Eurasian Patent Office
Prior art keywords
anomaly
localizing
apparent
transmitter
receiver
Prior art date
Application number
EA200700265A
Other languages
Russian (ru)
Other versions
EA013189B1 (en
Inventor
Эрик Ян Баннинг
Терухико Хагивара
Ричард Мартин Остермейер
Original Assignee
Шелл Интернэшнл Рисерч Маатсхаппий Б.В.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US10/701,735 external-priority patent/US7425830B2/en
Priority claimed from US10/897,585 external-priority patent/US7538555B2/en
Application filed by Шелл Интернэшнл Рисерч Маатсхаппий Б.В. filed Critical Шелл Интернэшнл Рисерч Маатсхаппий Б.В.
Publication of EA200700265A1 publication Critical patent/EA200700265A1/en
Publication of EA013189B1 publication Critical patent/EA013189B1/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/18—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for well-logging
    • G01V3/30—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for well-logging operating with electromagnetic waves

Abstract

Обеспечивается способ и система для возможности определения расстояния от инструмента до аномалии впереди инструмента. Устройство для выполнения способа включает в себя по меньшей мере один передатчик и по меньшей мере один приемник. Один из вариантов осуществления способа включает в себя передачу электромагнитных сигналов по меньшей мере из одного передатчика через пласт, окружающий буровую скважину, и детектирование по меньшей мере на одном приемнике откликов напряжения, наведенных электромагнитными сигналами. Способ включает в себя вычисление кажущейся удельной электропроводности или кажущегося удельного сопротивления, которые отслеживаются во времени, и из значений кажущейся удельной электропроводности или кажущегося удельного сопротивления определяется расстояние до аномалии.Provides a method and system for the ability to determine the distance from the tool to the anomaly in front of the tool. A device for performing the method includes at least one transmitter and at least one receiver. One of the embodiments of the method includes transmitting electromagnetic signals from at least one transmitter through the formation surrounding the borehole, and detecting at least one receiver the voltage responses induced by the electromagnetic signals. The method involves calculating apparent conductivity or apparent resistivity, which are monitored over time, and the distance to the anomaly is determined from the values of apparent conductivity or apparent resistivity.

EA200700265A 2003-11-05 2005-05-04 A method and an apparatus for determination of a distance to anomaly in a formation EA013189B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US10/701,735 US7425830B2 (en) 2003-11-05 2003-11-05 System and method for locating an anomaly
US10/897,585 US7538555B2 (en) 2003-11-05 2004-07-23 System and method for locating an anomaly ahead of a drill bit
PCT/US2005/015716 WO2006022922A1 (en) 2004-07-23 2005-05-04 Method for locating an anomaly ahead of a drill bit

Publications (2)

Publication Number Publication Date
EA200700265A1 true EA200700265A1 (en) 2007-06-29
EA013189B1 EA013189B1 (en) 2010-02-26

Family

ID=46205574

Family Applications (1)

Application Number Title Priority Date Filing Date
EA200700265A EA013189B1 (en) 2003-11-05 2005-05-04 A method and an apparatus for determination of a distance to anomaly in a formation

Country Status (1)

Country Link
EA (1) EA013189B1 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4372398A (en) * 1980-11-04 1983-02-08 Cornell Research Foundation, Inc. Method of determining the location of a deep-well casing by magnetic field sensing
GB2301902A (en) * 1995-06-08 1996-12-18 Baker Hughes Inc Detecting boundaries between strata while drilling a borehole
US6541975B2 (en) * 2001-08-23 2003-04-01 Kjt Enterprises, Inc. Integrated borehole system for reservoir detection and monitoring

Also Published As

Publication number Publication date
EA013189B1 (en) 2010-02-26

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Legal Events

Date Code Title Description
MM4A Lapse of a eurasian patent due to non-payment of renewal fees within the time limit in the following designated state(s)

Designated state(s): AM AZ BY KG MD TJ TM

MM4A Lapse of a eurasian patent due to non-payment of renewal fees within the time limit in the following designated state(s)

Designated state(s): KZ RU