WO2014160724A1 - Calibration method for multi-component induction tools - Google Patents
Calibration method for multi-component induction tools Download PDFInfo
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- WO2014160724A1 WO2014160724A1 PCT/US2014/031755 US2014031755W WO2014160724A1 WO 2014160724 A1 WO2014160724 A1 WO 2014160724A1 US 2014031755 W US2014031755 W US 2014031755W WO 2014160724 A1 WO2014160724 A1 WO 2014160724A1
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- loop
- component
- calibration
- induction tool
- tilted
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V13/00—Manufacturing, calibrating, cleaning, or repairing instruments or devices covered by groups G01V1/00 – G01V11/00
-
- 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
- G01V3/08—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
- G01V3/10—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils
- G01V3/104—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils using several coupled or uncoupled coils
-
- 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
-
- 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
- G01V3/38—Processing data, e.g. for analysis, for interpretation, for correction
Definitions
- the present invention relates generally to apparatus and methods related to measurements and measurement tools.
- Figure 1 is a block diagram of an example multi-component induction tool.
- Figures 2A-2F are schematic representations of an example loop calibration setup.
- Figures 3A-3E are schematic representations of an example loop calibration setup.
- Figure 4 is a flow diagram of features of an example method of calibrating a multi-component induction tool.
- Figure 5 is a flow diagram of features of an example method of calibrating a multi-component induction tool.
- Figure 6 is a block diagram of features of an example embodiment of a system operable to calibrate a multi-component induction tool. Detailed Description
- calibration techniques can include the use of a tilted calibrator.
- the tilted calibrator can be rotated or the tool being calibrated can be rotated to enable calibration.
- a tilted loop can be used to achieve calibration.
- the calibration may rotate the tool being calibrated.
- the tilted loop used in the calibration can be an elliptical tilted loop to enable more accurate modeling solution of non- traditional components, where the non-traditional components include cross components.
- one or more calibration techniques as taught herein can provide an accurate calibration method for the calibration of multi-component induction (MCI) tools.
- MCI tools can measure transverse coupling components in addition to the longitudinal coupling component measured by the traditional induction tools.
- Such calibration techniques can be denoted herein as a MCI calibration method.
- the MCI calibration method employs a calibration loop with a known resistance value that is chosen to produce a suitable signal level at a receiver antenna. Since the MCI tool measures all nine coupling components, the traditional calibration routine must be modified to allow the calibrations of these additional components.
- Calibration device or calibration loop herein refers to the device used in the calibration experiment.
- a calibration technique can be structured to achieve a good signal to noise ratio. Normally, the maximum signal values produced by the calibration device are recorded and used in the calibration process that is performed to calibrate the tool.
- a calibration experiment can include two longitudinal sweeps at ninety degrees from each other or, alternatively, sweeps along an azimuth angle at the axial position of the maximums of the transversal components. Both of these optional approaches can capture the maximum signals generated by the calibration device.
- the accurate evaluation of the calibration experiment uses ideally an experiment that can be modeled accurately by an analytic solution.
- the task is complicated by the fact that induction tools normally have a metal cylinder concentric with the axis of the tool, inside of which, wires that connect to transmitters and receivers are shielded.
- the arrangement with the tilted transmitters and tilted receivers with a metallic cylinder at the center can be solved analytically in certain cases, and the solution can be implemented numerically to derive the values that the tool should measure in a calibration experiment.
- a particular case in which the analytic solution can be derived is the case of a loop that lies on the surface of a cylinder, concentric with the axis, at an angle that can vary from zero to ninety degrees, i.e. an elliptical loop with the metal pipe at the center, concentric with the loop.
- the problem can be separated into cylindrical domains and can be solved analytically by using separation of variables. This means that the calibration can be made very accurate for the case of elliptically shaped transmitters and receivers and calibration loop.
- the problem can be solved to a good approximation with the effect of the metal pipe at the center included, even if the transmitter and receiver are not elliptical provided the calibration loop is elliptical. This last approximation leaves out the coupling between the pipe and the transmitter and receiver, but this effect can be approximated to improve the result.
- the loop can be of arbitrary shape, a freedom that can be used to design a calibration device that maximizes the signal at the receivers.
- an embodiment of a method is provided to calibrate an MCI tool to achieve better accuracy based on a specific geometry used for the purpose of solving the problem including a metal pipe at the center analytically.
- a typical multi-component induction logging tool can consist of a triad of transmitter coils oriented along the x-, y-, and z-directions and a triad of receiver coils with similar orientations.
- the receiver coils are used to collect electromagnetic signals from surrounding formation that is excited by the transmitter coils.
- the receiver is made of two functional parts; a main receiver coil and a bucking receiver coil, referred to as main and bucking coils.
- main and bucking coils The same concept can be readily used for multi-component induction tool.
- Figure 1 is a schematic representation of an example multi-component induction tool array having transmitter coils (T x , T y , and T z ), bucking receiver coils (B x , B y , and B z ), and main receiver coils (M x , M y , and M z ) having the separation distances L B and L M .
- a method to calibrate induction tools can include using a tilted loop calibrator to calibrate seven of the nine components of the MCI tool.
- the calibration method for the last two remaining components can include using a selected portion of the results from the calibration of the seven components.
- the induced voltage received by a receiver of an induction tool can be amplified, digitized and processed through electronic circuits and firmware.
- a surface computer receives an uncalibrated number. This number (signal) is then converted into apparent conductivity by using the following linear transformation:
- ⁇ S G - ⁇ J 0 ff set ⁇
- S is the received signal
- G is a multiplier, called gain
- o 0 ff se t is an additive constant, called offset or sonde error.
- the calibration of the induction tool relates to the determination of the gain and the offset.
- induction logging tools have very large response volumes, it is very difficult to make equivalent artificial formation of known conductivity to use in calibration.
- loop calibrators are normally used.
- the loop is oriented in the plane perpendicular to the axis of the tool.
- array induction tools normally have a metallic cylinder concentric with the axis that shields the wiring that connects to the antennas.
- the problem of a circular loop with a cylindrical metallic tube at the center with circular transmitter and receivers can be solved very accurately with analytic techniques. This allows for high accuracy in the modeling of the calibration experiment, which leads to a more accurate calibration of the tool.
- a MCI calibration method two loops can be used.
- An elliptical tilted loop can be used to calibrate non-standard components, and a circular loop can be used to calibrate standard ZZ component.
- a loop sweeping experiment which means moving the calibration loop along the tool body in the axial direction, can be executed that provides the maximum values produced by the loop for the seven components that have non-zero results: XX, XZ, ZX, YY, YZ, ZY, and ZZ. The following procedure applies to these components. The procedure for XY and YX is described afterwards.
- FIGS 2A-2F are schematic representations of an example loop calibration setup.
- the loop calibration setup in Figures 2A-2F uses a tilted loop and a non-tilted loop.
- the calibration can be achieved through six steps: a "loop-off- xdipole-up” step, a "loop-on- xdipole-up” step, a “loop-off- ydipole-up” step, a “loop-on-ydipole-up” step, a "loop-on- zz” step using circular non-tilted loop, and an "air-hang” step.
- Figure 2A is a representation of a measurement setup with jc-direction antenna positioned up to sky with no loop (loop-off) disposed around the MCI tool 205 that is positioned at a distance above ground by non-conductive supports 215-1 and 215-2.
- the MCI tool 205 is positioned at 5 ft. above a ground, though other distances can be used.
- Figure 2B is a representation of a measurement setup with jc-direction antenna positioned up to sky with a tilted loop 210 disposed around the MCI tool 205 (loop-on).
- Figure 2C is a representation of a measurement setup with y-direction antenna positioned up to sky with no loop (loop- off) disposed around the MCI tool 205.
- Figure 2D is a representation of a measurement setup with y-direction antenna positioned up to sky with the tilted loop 210 disposed around the MCI tool 205 (loop-on).
- Figure 2E is a representation of a measurement setup with a non-tilted loop 212 disposed around the MCI tool 205 (loop on) to measure ZZ component. Orientation of the loop 212 is non-tilted when an axis of the loop is perpendicular to the axis of the cylindrical structure of the MCI tool 205, as shown in Figure 2E.
- Figure 2F is a representation of a measurement setup with the MCI tool 205 disposed from support structure 216 that is positioned on support structures 217-1 and 217-2, where the MCI tool 205 is hung from support structure 216 by connections 218-1 and 218-2 at a distance from ground significantly larger than the distance MCI tool 205 is placed above ground for the setups of Figures 2A-2E.
- the MCI tool 205 is positioned at 20 ft. above a ground, though other distances can be used. Because ground is conductive, even if there is nothing around the MCI tool 205, some connectivity can still be measured due to the conductivity of the ground where the calibration is being conducted.
- a select transmitter of the MCI tool 205 is activated.
- Currents are generated on the tilted loop 210 and the non- tilted loop 212, in the respective setups, in response to the transmission from the selected transmitter.
- Signals are received at selected receivers of the MCI tool 205 in response to the transmission from the selected transmitter and currents generated on the tilted loop 210 and the non-tilted loop 212 in the respective setups.
- the gain G can be calculated with the following equations:
- ioo P _o ff _xdi P oie_u P are the s i gna i s rece ived at "loop-on- xdipole-up" step and at "loop-off- xdipole-up” step with jc-direction antenna positioned up to sky
- S ioo P _on _ ydipoie_u P and S i oop _o ff _ y di P o _ w are the s i gna i s rece ived at "loop-on- ydipole-up” step and at "loop-off- ydipole-up” step with y-direction antenna positioned up to sky
- lo °p - on - ⁇ is the signal received at "loop-on- zz" step with y- direction antenna positioned up to sky and using non-tilted calibration loop.
- the offset is calculated with e uation below
- Figures 3A-3E are schematic representations of an example loop calibration setup.
- the loop calibration setup in Figures 3A-3E uses a tilted loop and a non-tilted loop.
- Figure 3A is a representation of a measurement setup with jc-direction antenna positioned up to sky with no loop (loop-off) disposed around the MCI tool 305 that is positioned at a distance above ground by non-conductive supports 315-1 and 315-2.
- the MCI tool 305 is positioned at 5 ft. above a ground, though other distances can be used.
- Figure 3B is a representation of a measurement setup with jc-direction antenna positioned up to sky with a tilted loop 310 disposed around the MCI tool 305 (loop-on).
- Figure 3C is a representation of a measurement setup with jc-direction antenna positioned up to sky with the tilted loop 310 disposed around the MCI tool 305 (loop-on), where the tilted loop 310 in Figure 3C has been rotated, for example by 90 degrees, from its position in Figure 3B.
- the measurement can be taken with y-direction antenna positioned up to sky with the tilted loop 310 disposed around the MCI tool 305 (loop-on) as the tilted loop 310 is rotated, either, x pointing up or y pointing up, provide information required to perform the calibration.
- Figure 3D is a representation of a measurement setup with a non-tilted loop 312 disposed around the MCI tool 305 (loop on) to measure ZZ component.
- Figure 3E is a representation of a measurement setup with the MCI tool 305 disposed from support structure 316 that is positioned on support structures 317-1 and 317-2, where the MCI tool 305 is hung from support structure 316 by connections 318-1 and 318-2 at a distance from ground significantly larger than the distance MCI tool 305 is placed above ground for the setups of Figures 3A-3D.
- the MCI tool 305 is positioned at 20 ft. above a ground, though other distances can be used.
- the tilted loop 310 can be rotated in 90 degrees to measure the coupling of the perpendicular component in the transverse direction, while in the experiment associated with Figures 2A-2F, tool 205 can be rotated.
- sonde ref is the apparent conductivity portion from the tool body when the temperature is T re fi ⁇ ⁇ ⁇ is the temperature effect which is a function of the temperature (7).
- T re f which is chosen to be 25°C.
- ⁇ « ⁇ is the apparent conductivity portion from the earth ground, which is treated as a semi- infinite plane
- Hi oop _ 0j is the height where the tool is positioned for "loop-off step. The height is commonly chosen 5ft above the ground as shown in
- Hi oop _ on is the height where the tool is positioned for "loop-on” step, which is commonly chosen the same as for the "loop-off step. At “air-hang” step,
- equation (9) reduces back to a form of equation (2).
- the pre-assumption for equation (2) is that the temperature effects and the ground effects are the same for both the "loop-off step and the "loop-on” step. This pre-assumption can be met by making
- An elliptical tilted calibration loop and a circular no n- tilted calibration loop can be used in a multi-stage calibration procedure to provide fast and accurate calibration of the MCI tool.
- An embodiment can be realized to provide accurate calibration for the multi-component induction tool.
- An MCI tool has three transmitter orientations and three receiver orientations that give raise to nine-coupling signals at each frequency.
- seven components of XX, XZ, YY, YZ, ZX, ZY, and ZZ can be calibrated first. From the measurements of the seven
- the offsets can be evaluated by lifting the tool from the surface to a height such as 20 ft, in a so called air hang experiment.
- the offsets can be evaluated as:
- a a S - G - a offset , (12) where S is the received signal, G the gain, and ⁇ offset is the additive constant also called sonde error.
- FIG. 4 is a flow diagram of features of an example method of calibrating a multi-component induction tool.
- calibration gain factors of selected coupling components of a MCI tool are generated from measurements using a tilted elliptical loop.
- Calibration gain factors of a number of components can be generated by using selected gain factors generated from using the tilted elliptical loop.
- analytic calibration of the MCI tool is performed for the calibration gain factors from the measurements using the tilted elliptical loop.
- a number of techniques can be used to generate the calibration gain factors using the tilted elliptical loop for analytic calibration of the MCI tool.
- FIG. 5 is a flow diagram of features of an example method of calibrating a multi-component induction tool.
- calibration gain factors of XX, XZ, YY, YZ, ZX, and ZY coupling components of a multi-component induction tool are generated from measurements using a tilted elliptical loop. Such gain factors can be generated as an analytic calibration of the multi-component induction tool.
- the multi-component induction tool can be structured having a longitudinal axis along a z-axis with respect to these measurements.
- a calibration gain factor of a ZZ component is generated using a circular loop for the analytic calibration.
- calibration gain factors of XY and YX coupling components are generated using selected gain factors generated from using the tilted elliptical loop and the circular loop.
- Generating the calibration gain factors of the six components can include: generating signals with the tilted elliptical loop around the multi-component induction tool; generating signals without using the tilted elliptical loop; and generating each respective gain factor of a coupling component based on a difference between a signal correlated to the respective coupling component with the tilted elliptical loop around the multi- component induction tool and a signal correlated to the respective coupling component without using the tilted elliptical loop.
- Features associated with a method corresponding to Figure 4 and/or Figure 5 can include generating the signals with the tilted elliptical loop around the multi- component induction tool at a temperature and with the multi-component induction tool at a height that is the same as when generating the signals without using the tilted elliptical loop.
- Features associated with a method corresponding to Figure 4 and/or Figure 5 can include generating maximum values provided by the tilted elliptical loop by loop sweeping the tilted elliptical loop.
- the loop sweeping can be conducted by rotating the multi-component induction tool.
- the loop sweeping can be conducted by rotating the tilted elliptical loop.
- Features associated with a method corresponding to Figure 4 and/or Figure 5 can include positioning the tilted elliptical loop at a maximum response of each component along the z-axis and rotating the tilted elliptical loop around the z-axis to capture the maximum.
- Features associated with a method corresponding to Figure 4 and/or Figure 5 can include determining a conductivity offset by measuring a signal with the multi- component induction tool at a height greater than that at which the multi-component induction tool is disposed to generate the calibration gain factors.
- Features associated with a method corresponding to Figure 4 and/or Figure 5 can include determining a sonde error including evaluating temperature effect on the sonde error by characterizing tool response behavior of the multi-component induction tool through heating tests.
- Features associated with a method corresponding to Figure 4 and/or Figure 5 can include calculating earth ground conductivity using only the ZZ component from the multi-component induction tool.
- a machine-readable storage device can have instructions stored thereon, which, when performed by a machine, cause the machine to perform operations, the operations comprising a method associated with any of Figures 1-5 or combinations thereof.
- a machine-readable storage device herein, is a physical device, which is a non-transitory device, that stores data represented by physical structure within the device. Examples of machine-readable storage devices include, but are not limited to, read only memory (ROM), random access memory (RAM), a magnetic disk storage device, an optical storage device, a flash memory, and other electronic, magnetic, and/or optical memory devices.
- a system comprises a processor unit and a memory unit operatively coupled to the processor unit, where the memory unit has instructions stored thereon, which, when executed by the processor unit, cause the system to perform operations according to a method associated with any of Figures 1-5 or combinations thereof.
- the system can include a MCI tool and an elliptical loop.
- the elliptical loop can be positioned around the MCI tool, moveable along the axis of the MCI tool, and tiltable with respect to the axis of the MCI tool.
- Various components and/or features associated with the system can include a number of additional structures or structures arranged to conduct additional actions related to a MCI tool and/or calibration of the multi-component induction tool.
- Figure 6 is a block diagram of features of an example embodiment of a system 600 operable to calibrate a multi-component induction tool 605, as described herein or in a similar manner.
- the system 600 can include a MCI tool 605 having an arrangement of transmitter antennas 612 and receiver antennas 614.
- the system 600 can be configured to operate in accordance with the teachings herein.
- the system 600 can include a processor unit 625, a memory unit 630, an electronic apparatus 665, and a communications unit 635.
- the memory unit 630 can be structured to include a database.
- One or more of the processor unit 625, the memory unit 630, and the communications unit 635 can be arranged to operate to control operation of the transmitter antennas 612 and the receiver antennas 614 and to perform operations on the signals collected by the receiver antennas 614 to calibrate the MCI tool 605.
- a processing unit 620 structured to calibrate a MCI tool, can be implemented as a single unit or distributed among the components of the system 600 including electronic apparatus 665.
- the processor unit 625 and the memory unit 630 can operate to control activation of a selected transmitter antenna of the transmitter antennas 612 to generate a signal for calibration.
- the processor unit 625 and the memory unit 630 can operate to control selection of the receiver antennas 614 in the MCI tool 605 and to manage processing schemes.
- the processor unit 625, the memory unit 630, and other components of the system 600 can be structured, for example, to operate similar to or identical to the processing components discussed herein or similar to or identical to any of methods discussed herein.
- the system 600 can also include a bus 627, where the bus 627 provides electrical conductivity among the components of the system 600.
- the bus 627 can include an address bus, a data bus, and a control bus, each independently configured or in an integrated format.
- the bus 627 can be realized using a number of different communication mediums that allows for the distribution of components of the system 600. Use of the bus 627 can be regulated by the processor unit 625.
- Bus 627 can include a communications network.
- the peripheral devices 645 can include additional storage memory and other control devices that may operate in conjunction with the processor unit 625 and the memory unit 630.
- the processor unit 625 can be realized as a processor or a group of processors that may operate independently depending on an assigned function.
- the system 600 can include display unit(s) 655, which can be used with instructions stored in the memory unit 630 to implement a user interface to display results of a calibration procedure and/or monitor the operation of the tool 605 and/or components distributed within the system 600.
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Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
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CA2901639A CA2901639A1 (en) | 2013-03-28 | 2014-03-25 | Calibration method for multi-component induction tools |
MX2015008550A MX355658B (en) | 2013-03-28 | 2014-03-25 | Calibration method for multi-component induction tools. |
AU2014241523A AU2014241523B2 (en) | 2013-03-28 | 2014-03-25 | Calibration method for multi-component induction tools |
US14/415,675 US10359539B2 (en) | 2013-03-28 | 2014-03-25 | Calibration method for multi-component induction tools |
EP14775927.8A EP2979117A4 (en) | 2013-03-28 | 2014-03-25 | Calibration method for multi-component induction tools |
BR112015015560A BR112015015560A2 (en) | 2013-03-28 | 2014-03-25 | calibration method for multi-component induction tools |
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US201361806226P | 2013-03-28 | 2013-03-28 | |
US61/806,226 | 2013-03-28 |
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PCT/US2014/031755 WO2014160724A1 (en) | 2013-03-28 | 2014-03-25 | Calibration method for multi-component induction tools |
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US (1) | US10359539B2 (en) |
EP (1) | EP2979117A4 (en) |
AU (1) | AU2014241523B2 (en) |
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CA (1) | CA2901639A1 (en) |
MX (1) | MX355658B (en) |
WO (1) | WO2014160724A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108037317A (en) * | 2017-12-06 | 2018-05-15 | 中国地质大学(武汉) | The dynamic decoupling method and system of a kind of accelerometer |
RU2680258C1 (en) * | 2018-04-13 | 2019-02-19 | Александр Леонидович Наговицын | Integrated with the battery compartment cover the hdd probe extraction device |
US10359539B2 (en) | 2013-03-28 | 2019-07-23 | Halliburton Energy Services, Inc. | Calibration method for multi-component induction tools |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10036827B2 (en) * | 2014-11-18 | 2018-07-31 | Schlumberger Technology Corporation | Petrophysically-consistent calibration of full-tensor electromagnetic induction tools |
US10577922B2 (en) * | 2016-01-13 | 2020-03-03 | Halliburton Energy Services, Inc. | Efficient location of cable behind a downhole tubular |
DE102016008841A1 (en) | 2016-07-19 | 2018-01-25 | Forschungszentrum Jülich GmbH | Calibration method for electromagnetic induction measurement systems and apparatus |
US11112523B2 (en) | 2017-12-01 | 2021-09-07 | Schlumberger Technology Corporation | Calibration of electromagnetic measurement tool |
WO2021258047A1 (en) * | 2020-06-19 | 2021-12-23 | Schlumberger Technology Corporation | Antenna calibration in an em logging tool |
US11768315B1 (en) | 2022-04-04 | 2023-09-26 | Schlumberger Technology Corporation | Directional electromagnetic ratio calibration |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030004646A1 (en) * | 2000-06-30 | 2003-01-02 | Haugland S. Mark | Method of and apparatus for independently determining the resistivity and/or dielectric constant of an earth formation |
US20070103160A1 (en) * | 2004-05-07 | 2007-05-10 | Baker Hughes Incorporated | Cross-Component Alignment Measurement and Calibration |
US20080074115A1 (en) * | 2006-01-26 | 2008-03-27 | Baker Hughes Incorporated | Correction of Misalignment of Antennas in a Logging Tool |
US20080121430A1 (en) * | 2003-02-24 | 2008-05-29 | The Charles Machine Works, Inc. | Configurable Beacon And Method |
US20120078558A1 (en) * | 2010-09-27 | 2012-03-29 | Baker Hughes Incorporated | Triaxial Induction Calibration Without Prior Knowledge of the Calibration Area's Ground Conductivity |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6766799B2 (en) * | 2001-04-16 | 2004-07-27 | Advanced Inhalation Research, Inc. | Inhalation device |
US6794875B2 (en) * | 2002-05-20 | 2004-09-21 | Halliburton Energy Services, Inc. | Induction well logging apparatus and method |
US7414391B2 (en) * | 2002-07-30 | 2008-08-19 | Schlumberger Technology Corporation | Electromagnetic logging tool calibration system |
US7094148B2 (en) * | 2002-09-11 | 2006-08-22 | Igt | Gaming device having a free spin game |
EP1836644B1 (en) | 2004-11-04 | 2013-10-23 | Baker Hughes Incorporated | Multiscale multidimensional well log data inversion and deep formation imaging method |
US20060208737A1 (en) | 2005-03-16 | 2006-09-21 | Baker Hughes Incorporated | Calibration of xx, yy and zz induction tool measurements |
US20070083330A1 (en) | 2005-10-06 | 2007-04-12 | Baker Hughes Incorporated | Fast method for reconstruction of 3D formation rock properties using modeling and inversion of well-logging data |
WO2011091216A2 (en) | 2010-01-22 | 2011-07-28 | Schlumberger Canada Limited | Real-time formation anisotropy and dip evaluation using tri-axial induction measurements |
WO2013036896A1 (en) | 2011-09-09 | 2013-03-14 | Schlumberger Canada Limited | Adaptive inversion for vertical resistivity logs from multiaxial induction measurements |
MX2014002831A (en) | 2011-09-09 | 2014-06-23 | Schlumberger Technology Bv | Real-time formation anisotropy and dip evaluation using multiaxial induction measurements. |
CA2901639A1 (en) | 2013-03-28 | 2014-10-02 | Halliburton Energy Services, Inc. | Calibration method for multi-component induction tools |
-
2014
- 2014-03-25 CA CA2901639A patent/CA2901639A1/en not_active Abandoned
- 2014-03-25 AU AU2014241523A patent/AU2014241523B2/en not_active Ceased
- 2014-03-25 US US14/415,675 patent/US10359539B2/en active Active
- 2014-03-25 MX MX2015008550A patent/MX355658B/en active IP Right Grant
- 2014-03-25 EP EP14775927.8A patent/EP2979117A4/en not_active Withdrawn
- 2014-03-25 BR BR112015015560A patent/BR112015015560A2/en not_active Application Discontinuation
- 2014-03-25 WO PCT/US2014/031755 patent/WO2014160724A1/en active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030004646A1 (en) * | 2000-06-30 | 2003-01-02 | Haugland S. Mark | Method of and apparatus for independently determining the resistivity and/or dielectric constant of an earth formation |
US20080121430A1 (en) * | 2003-02-24 | 2008-05-29 | The Charles Machine Works, Inc. | Configurable Beacon And Method |
US20070103160A1 (en) * | 2004-05-07 | 2007-05-10 | Baker Hughes Incorporated | Cross-Component Alignment Measurement and Calibration |
US20080074115A1 (en) * | 2006-01-26 | 2008-03-27 | Baker Hughes Incorporated | Correction of Misalignment of Antennas in a Logging Tool |
US20120078558A1 (en) * | 2010-09-27 | 2012-03-29 | Baker Hughes Incorporated | Triaxial Induction Calibration Without Prior Knowledge of the Calibration Area's Ground Conductivity |
Non-Patent Citations (1)
Title |
---|
See also references of EP2979117A4 * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10359539B2 (en) | 2013-03-28 | 2019-07-23 | Halliburton Energy Services, Inc. | Calibration method for multi-component induction tools |
CN108037317A (en) * | 2017-12-06 | 2018-05-15 | 中国地质大学(武汉) | The dynamic decoupling method and system of a kind of accelerometer |
RU2680258C1 (en) * | 2018-04-13 | 2019-02-19 | Александр Леонидович Наговицын | Integrated with the battery compartment cover the hdd probe extraction device |
Also Published As
Publication number | Publication date |
---|---|
BR112015015560A2 (en) | 2017-07-11 |
AU2014241523A1 (en) | 2015-07-16 |
CA2901639A1 (en) | 2014-10-02 |
MX355658B (en) | 2018-04-26 |
US10359539B2 (en) | 2019-07-23 |
US20150177412A1 (en) | 2015-06-25 |
EP2979117A4 (en) | 2016-11-02 |
EP2979117A1 (en) | 2016-02-03 |
AU2014241523B2 (en) | 2017-04-13 |
MX2015008550A (en) | 2016-01-20 |
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