WO2003050912A1 - Appareil et procede de mesure de la resistivite induite d'un materiau a l'interieur d'un espace confine tel que dans un puits de fond de production d'hydrocarbures au moyen de segments de lentilles separes places autour de l'emetteur - Google Patents

Appareil et procede de mesure de la resistivite induite d'un materiau a l'interieur d'un espace confine tel que dans un puits de fond de production d'hydrocarbures au moyen de segments de lentilles separes places autour de l'emetteur Download PDF

Info

Publication number
WO2003050912A1
WO2003050912A1 PCT/US2001/047726 US0147726W WO03050912A1 WO 2003050912 A1 WO2003050912 A1 WO 2003050912A1 US 0147726 W US0147726 W US 0147726W WO 03050912 A1 WO03050912 A1 WO 03050912A1
Authority
WO
WIPO (PCT)
Prior art keywords
magnetic flux
flux
transmitter
configuration
magnetic
Prior art date
Application number
PCT/US2001/047726
Other languages
English (en)
Inventor
Bijan K. Amini
Original Assignee
Em-Tech Llc
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
Application filed by Em-Tech Llc filed Critical Em-Tech Llc
Priority to AU2002230733A priority Critical patent/AU2002230733A1/en
Priority to PCT/US2001/047726 priority patent/WO2003050912A1/fr
Publication of WO2003050912A1 publication Critical patent/WO2003050912A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/04—Adaptation for subterranean or subaqueous use
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
    • G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
    • G01N27/90—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents
    • G01N27/9073—Recording measured data
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/24—Earth materials
    • G01N33/241—Earth materials for hydrocarbon content
    • 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
    • G01V3/26—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for well-logging operating with magnetic or electric fields produced or modified either by the surrounding earth formation or by the detecting device
    • G01V3/28—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for well-logging operating with magnetic or electric fields produced or modified either by the surrounding earth formation or by the detecting device using induction coils
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
    • H01Q15/02—Refracting or diffracting devices, e.g. lens, prism
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H01Q19/06—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using refracting or diffracting devices, e.g. lens
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H01Q19/06—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using refracting or diffracting devices, e.g. lens
    • H01Q19/09—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using refracting or diffracting devices, e.g. lens wherein the primary active element is coated with or embedded in a dielectric or magnetic material

Definitions

  • the present invention relates to a method and apparatus for obtaining measurements of induced resistivity of objects from confined spaces such as within the confined space of a down-hole hydrocarbon production well. It is well known that measuring the resistivity of an object or media can provide useful information regarding the composition and the location of object or media.
  • the present invention utilizes the principles of Magnetic AntennaTM and Magnetic LensingTM to obtain information regarding the location and properties of the target object.
  • IRM Inductive Resistivity Measurements
  • IRM In this lack of multiple antennas arrays causes the loss of directional information from received EM waves.
  • An example of space limitations is in the down-hole environment of oil wells. IRM is used in this application for reservoir mapping or the detection of interfaces among oil, water and gas in a geologic formation. The accurate knowledge of the direction of the reflected EM wave is very important in these uses of IRM. Directionality determination must be made in both the vertical and azimuthal senses. Therefore there is a need for a device to encode the radiated EM signals in a way that yields directionality in space limited environments.
  • IRM Inductive Resistivity Measurements
  • the present invention utilizes magnetic antenna and magnetic lensing techniques to overcome the spatial limitations that heretofore have prevented multiple measurement to be taken from separate locations.
  • the method and apparatus of the present invention discloses creating phase changes in a pulsed or oscillating magnetic flux transmitted from a magnetic flux transmitter.
  • the phase changes are created in a controlled manner by utilization of the magnetic lensing effect.
  • the transmitted oscillating magnetic flux passes through differing sections of a magnetic antenna, the phase of the original oscillating flux is modified into multiple phases. These multiple phases are also oriented in different directions. Accordingly, a flux from a single source and having a single phase, is altered into multiple and easily distinguishable flux signals.
  • the multiple flux signals can be oriented in different directions by the magnetic lens effect, it is possible to utilize the different induced phases from one or more magnetic flux transmitter to induce responsive oscillating flux signals within the target object from one or more of known locations relative to one or more signal receiving devices. These result in multiple Induced Resistivity Measurements that can provide the location or, at a minimum, the direction of the target object from the separate signal receiving devise.
  • Figure 1 illustrates a collar device attached to a production tubing comprising distinct sections having differing permeability properties.
  • Figure 1A illustrates a cross sectional view of the embodiment.
  • Figure 2 illustrates another embodiment of the invention.
  • Figure 2A illustrates a cross sectional view of the embodiment of Figure 2.
  • Figure 3 illustrates the magnetic lensing effect achieved by transmission of an oscillating magnetic flux signal through a lens and the arc the distinctive and controlled lensed and phased signal.
  • Figure 4 illustrates an embodiment wherein the magnetic lensing device is located separate from the magnetic flux receiver on a production well tubing.
  • FIG. 5 is a schematic drawing of some of the components utilized in some embodiments of the invention.
  • the above general description and the following detailed description are merely illustrative of the subject invention, and additional modes, advantages and particulars of this invention will be readily suggest to those skilled in the art without departing from the spirit and scope of the invention.
  • the invention subject of this application utilizes one or more sources for generating magnetic flux.
  • the flux can be generated utilizing a pulsed D.C. generated magnetic flux or an oscillating magnetic flux.
  • the magnetic flux oscillates or pulses at a controlled frequency and phase.
  • This flux is engaged with a material that is electrically conductive and magnetically permeable, e.g., a ferromagnetic metal. It will be appreciated that such material typically act as barriers to the transmission of electro-magnetic energy or signals. These materials are termed herein as "EM barriers” or “barrier materials.”
  • the present invention teaches use of barrier materials of differing permeability and shape to construct a lensed magnetic antenna for directing or focusing oscillating magnetic flux in a controlled manner. These lens components can be arranged or configured in multiple designs in accordance with the particular application.
  • the lens components can be configured in a "collar type" antenna shape around a pipe or similar object as illustrated in Figures 1 , 1 A, 2 and 2A.
  • the lensed magnetic antenna 360 can be made of multiple sections of differing material or like material of differing shape, e.g., thickness. It will be appreciated that the materials of differing thickness or composition will have differing permeability and conductivity. As a result, the oscillating magnetic flux from the transmitter 390 will be both phase shifted and directed as the portions of flux signal are transmitted through differing segments of the lensed magnetic antenna.
  • Figure 1 illustrates separate lens segments 370 through 383 configured into a single collar shaped lensed magnetic antenna 360. Separate portions of the oscillating flux emitted from the transmitter 390 are transmitted outward through separate lens segments in the manner indicated by vector 826. The power supply and other components are not shown. Means to partially saturate the permeable segments comprising the lensed magnetic antenna 360 are also not shown. It may be anticipated that the means to couple with the antenna may be required to reduce the permeability of at least some of the segments in order that the oscillating magnetic flux can couple and penetrate into the surface of the antenna 360. This may require placement of one or more saturation coils, not shown, within the space 952 proximate to the transmitter 390.
  • the well casing 100 may be an EM barrier
  • embodiments of the invention may include use of non-permeable material. In this or other embodiments, it may be deemed advantageous to place the saturation coil inside the annulus 116 of the tube or pipe 100.
  • Figure 1A shows the arrangement of the lensed magnetic antenna 360 with the individual segments, e.g., 374, 377, etc. It will be noted that each lens segment is immediately adjacent to the transmitter 390. It will be appreciated that a small gap or spacing of a known thickness will be maintained between the transmitter 390 and the lensed magnetic antenna 360.
  • Figure 1 shows oscillating magnetic flux transmitted from the transmitter 390 in the same phase. Since the flux is transmitted through segments of the antenna 360 having differing permeability or thickness, the phase of the differing portions of flux will experience differing shifts in phase. This results in phase angles Theta (1 ) and Theta (2).
  • these lens segments could be of uniform thickness but using different materials with different permeability values located at different locations on the configuration of the lensed magnetic antenna.
  • the permeable material would be varied across the transmitter lens in a phase-coded pattern. This phase coded pattern would be related to a particular direction that would represent a signature of all the EM waves returning from a target from that direction to a separate non-lensed receiver.
  • the spatial relationship of the phase- coded pattern would be important in determining the returning wave direction. It will be appreciated that a phase code pattern be utilized that will be distinctive from possible induced phase changes within the targets. It will, of course, be beneficial to have knowledge of the expected target object. For example, an advancing waterfront contact target would be changing the EM phase in a different way than stationary targets.
  • the varying permeability creating the selected lensing of the transmitted magnetic flux may be comprised of alternating sections of the coating over the lensed magnetic antenna 390. Each segment will have selected permeability variations of one (e.g., stainless steel) and ten (a semi-saturated ferromagnetic material). The resulting signals into the media would be coded at the separation angle of the lens segments and shown in Figure 4.
  • Figure 2 illustrates a differing configuration wherein the transmitter 390 is not adjacent to each separate lens segment of the antenna 360.
  • an oscillating magnetic flux signal from 360 may pass through several differing segments prior to being emitted from the antenna in the altered phase and direction.
  • Figures 1 , 1A, 2 and 2A do not show the means for receiving a separate oscillating flux signal that may be generated from eddy currents induced from the transmitted oscillating magnetic flux.
  • Figure 3 illustrates an arc of angle ⁇ within which a transmitted signal may be emitted from a particular lensing segment. It will be appreciated that the arc may also overlap with the arc of at least the next adjacent lensing segments.
  • the direction and phase provides a marker or coding as to the origin of the oscillating magnetic flux.
  • Flux that is induced through well understood electro- mechanical principles as a result of the electrically conductive object be engaged with the oscillating magnetic flux will accordingly provide information regarding the location of the object or the media that is responding to the flux transmitted by the lensed magnetic antenna.
  • the specific length and geometry of the arc will be a function of the permeability of the antenna section, the frequency of the transmitted flux and the configuration of the lensing segments comprising the magnetic flux antenna.
  • Figure 4 illustrates a configuration of the invention wherein a receiver device 589 is placed on a pipe at a location separate from the magnetic flux antenna 360.
  • the separation of the transmitter 390 and the receiver 580 may facilitate nulling of the direct transmission of signal.
  • the device may be used in conjunction with well casing 111 not comprising an EM barrier, e.g., stainless steel, etc.
  • the lens segments may vary in thickness, causing like permeable materials to create varying phase shifting in the transmitted oscillating flux through the lens at different points by different amounts. This phase shifting occurs because the permeable material absorbs oscillating flux in proportion to the permeability value of the material and its thickness. In two dimensions, this phenomenon is shown in Figure 4.
  • multiple receivers may be utilized in conjunction with one or more phase coded lensed magnetic antenna, thereby providing multiple reference points for determining the location of target objects possessing electrically conductive properties with the area of interest. Examples can include the location of water or the water within a hydrocarbon reservoir.
  • a permeable material to make up alternating sections of the coating over the transmitting antenna as shown in Figure 1 B.
  • the sections could have permeability variations of one (stainless steel) and ten (a semi-saturated ferromagnetic material).
  • the resulting signals into the media would be coded at the spatial angles of the lenses as shown in Figures 1A, 1 B.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Remote Sensing (AREA)
  • Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • Analytical Chemistry (AREA)
  • Pathology (AREA)
  • General Health & Medical Sciences (AREA)
  • Geology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electromagnetism (AREA)
  • Electrochemistry (AREA)
  • Geophysics (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Aerials With Secondary Devices (AREA)

Abstract

L'invention concerne un procédé et un appareil permettant d'obtenir des mesures de la résistivité induite d'objets à partir d'espaces confinés tels que dans l'espace confiné d'un puits de fond de production d'hydrocarbures. Le mesurage de la résistivité d'un objet ou d'un milieu peut fournir, c'est bien connu, des informations utiles concernant la composition et l'emplacement d'un tel objet ou milieu. L'invention concerne l'utilisation des principes de Magnetic Antenna™ et de Magnetic Lensing™ pour obtenir des informations relatives à l'emplacement et aux propriétés de l'objet cible.
PCT/US2001/047726 2001-12-10 2001-12-10 Appareil et procede de mesure de la resistivite induite d'un materiau a l'interieur d'un espace confine tel que dans un puits de fond de production d'hydrocarbures au moyen de segments de lentilles separes places autour de l'emetteur WO2003050912A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2002230733A AU2002230733A1 (en) 2001-12-10 2001-12-10 Apparatus and method for measuring induced resistivity of a material within a confined space as in a down-hole hydrocarbon production well using separate lens segments around the transmitter
PCT/US2001/047726 WO2003050912A1 (fr) 2001-12-10 2001-12-10 Appareil et procede de mesure de la resistivite induite d'un materiau a l'interieur d'un espace confine tel que dans un puits de fond de production d'hydrocarbures au moyen de segments de lentilles separes places autour de l'emetteur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2001/047726 WO2003050912A1 (fr) 2001-12-10 2001-12-10 Appareil et procede de mesure de la resistivite induite d'un materiau a l'interieur d'un espace confine tel que dans un puits de fond de production d'hydrocarbures au moyen de segments de lentilles separes places autour de l'emetteur

Publications (1)

Publication Number Publication Date
WO2003050912A1 true WO2003050912A1 (fr) 2003-06-19

Family

ID=21743104

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/047726 WO2003050912A1 (fr) 2001-12-10 2001-12-10 Appareil et procede de mesure de la resistivite induite d'un materiau a l'interieur d'un espace confine tel que dans un puits de fond de production d'hydrocarbures au moyen de segments de lentilles separes places autour de l'emetteur

Country Status (2)

Country Link
AU (1) AU2002230733A1 (fr)
WO (1) WO2003050912A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016174192A1 (fr) 2015-04-29 2016-11-03 Bsn Medical Gmbh Dispositif médical pour bains
WO2016174043A1 (fr) 2015-04-29 2016-11-03 Bsn Medical Gmbh Procédé en plusieurs étapes, pour produire du no

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0280379A2 (fr) * 1987-02-27 1988-08-31 Yoshihiko Sugio Antenne chargée par un milieu diélectrique ou magnétique
US5698977A (en) * 1993-10-12 1997-12-16 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Eddy current method for fatigue testing
US6020741A (en) * 1998-06-16 2000-02-01 Halliburton Energy Services, Inc. Wellbore imaging using magnetic permeability measurements
WO2001006278A1 (fr) * 1999-07-15 2001-01-25 Geolink (Uk) Ltd. Diagraphie en cours de forage grace a une sonde directive
US6285337B1 (en) * 2000-09-05 2001-09-04 Rockwell Collins Ferroelectric based method and system for electronically steering an antenna

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0280379A2 (fr) * 1987-02-27 1988-08-31 Yoshihiko Sugio Antenne chargée par un milieu diélectrique ou magnétique
US5698977A (en) * 1993-10-12 1997-12-16 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Eddy current method for fatigue testing
US6020741A (en) * 1998-06-16 2000-02-01 Halliburton Energy Services, Inc. Wellbore imaging using magnetic permeability measurements
WO2001006278A1 (fr) * 1999-07-15 2001-01-25 Geolink (Uk) Ltd. Diagraphie en cours de forage grace a une sonde directive
US6285337B1 (en) * 2000-09-05 2001-09-04 Rockwell Collins Ferroelectric based method and system for electronically steering an antenna

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016174192A1 (fr) 2015-04-29 2016-11-03 Bsn Medical Gmbh Dispositif médical pour bains
WO2016174043A1 (fr) 2015-04-29 2016-11-03 Bsn Medical Gmbh Procédé en plusieurs étapes, pour produire du no

Also Published As

Publication number Publication date
AU2002230733A1 (en) 2003-06-23

Similar Documents

Publication Publication Date Title
EP1891457B1 (fr) Navigation sous-marine
US8315560B2 (en) Underwater navigation
US7170294B2 (en) Subsurface imagery for temperature measurement and fluid flow for oil recovery using electromagnetic impedance tomography (EMIT)
US6630831B2 (en) Measurements of electrical properties through non magneticially permeable metals using directed magnetic beams and magnetic lenses
CA2497888C (fr) Procede et appareil de mesure de la resistivite directionnelle pendant le forage
CN101300505B (zh) 用于通过电磁高频信号定位包围在介质中的物体的测量仪和方法
US6788065B1 (en) Slotted tubulars for subsurface monitoring in directed orientations
MXPA06014989A (es) Fuentes multi-componente del campo para la exploracion submarina.
US6628118B1 (en) Method and apparatus for control of magnetic flux direction and concentration
JP2009539090A (ja) 地中に埋設された又は土木建造物中に埋込された埋設パイプ又は他の物体を識別及び追跡するのに適する検出システム
KR101550949B1 (ko) 공진 리플렉터 어셈블리 및 방법
CA2361315A1 (fr) Methodes et appareil de mise au point electromagnetique par bobines multiples et appareil servant a reduire les effets d'excentricite des trous de forage
US10204298B2 (en) UHF RFID tag for marking underground assets and locations and method of using same
CN108981623B (zh) 一种基于微波信号的远距离微小位移探测方法
US6351245B1 (en) Use of phase coded permeability lensing to obtain directional information in electro-magnetic radiation
US6657440B1 (en) Propagation of waves through materials
WO2003050912A1 (fr) Appareil et procede de mesure de la resistivite induite d'un materiau a l'interieur d'un espace confine tel que dans un puits de fond de production d'hydrocarbures au moyen de segments de lentilles separes places autour de l'emetteur
US20020093458A1 (en) Use of phase coded permeability lensing to obtain directional information in electro-magnetic radiation
GB2462543A (en) Underwater navigation system determining position from the difference in propagation speeds between electromagnetic and acoustic signals
GB2459218A (en) Underwater signal direction determination
US20160041289A1 (en) Method of Mapping Resistive or Conductive Targets onshore or offshore and an Apparatus for Applying the Method
RU2739230C1 (ru) Способ организации антенны скважинного резистивиметра для телеметрической системы (варианты), антенна скважинного резистивиметра для телеметрической системы (варианты)
US9239401B2 (en) Stationary source for marine electromagnetic surveying
Rostami et al. The impact of airwave on tangential and normal components of electric field in seabed logging data
RU2338876C1 (ru) Способ определения угла отклонения пневмопробойника от заданной траектории

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ OM PH PL PT RO RU SD SE SG SI SK SL TJ TM TN TR TT TZ UA UG UZ VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: "NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 69(1) EPC" (EPO FORM 1205A DATED13.09.2004)

122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: JP

WWW Wipo information: withdrawn in national office

Country of ref document: JP