DIAGRAPHIE COURS PDF

L’invention concerne un procédé et un dispositif de diagraphie en cours de forage permettant d’obtenir des informations concernant une formation. Le dispositif. Title, Cours de diagraphies instantanées: par R. Desbrandes Author, Robert Desbrandes. Editor, École nationale supérieure du pétrole et des moteurs a. L’invention concerne un procédé et un dispositif de diagraphie en cours de forage permettant d’obtenir des informations concernant une.

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Cours de diagraphies instantanées: par R. Desbrandes – Robert Desbrandes – Google Books

Method for filtering gamma ray well logging tool response to enhance vertical detail while suppressing statistical noise. Procede d’obtention d’une image bidimensionnelle developpee de la paroi d’un forage. Passive, active and diabraphie cancellation of borehole effects for well logging. Reduced-length measure while drilling apparatus using electric field short range data transmission. Making directional measurements using a rotating and non-rotating drilling apparatus.

Borehole image reconstruction using inversion and tool spatial sensitivity functions. Methods of generating directional low frequency acoustic signals and reflected signal detection enhancements for seismic while drilling applications.

Method and apparatus for cancellation of borehole effects due to a tilted or transverse magnetic dipole.

5 cours & 10 sujets de sismologie I des études supérieures de géophysique

Method and apparatus for safely operating radiation generators in while-drilling and while-tripping applications. Well logging apparatus having toroidal courx antenna for measuring, while drilling, resistivity of earth formations. Apparatus and method for wellbore resistivity imaging using capacitive coupling. Determination of borehole azimuth and the azimuthal dependence of borehole parameters.

Electromagnetic power and communication link particularly adapted for drill collar mounted sensor systems. Drilling system with an acoustic measurement-while-driving system for determining parameters of interest and controlling the drilling direction. Method and apparatus for generating acoustic signals for LWD shear velocity measurement. Logging while drilling method and apparatus for measuring formation characteristics as a function of angular position within a borehole.

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Triaxial magnetic heading sensing apparatus having magnetaresistors and nulling coils.

Method and apparatus for measuring formation density and the formation photo-electric factor with a multi-detector gamma-gamma tool. Semblance processing for an acoustic measurement-while-drilling system for imaging of formation boundaries.

Measurement-while-drilling acoustic system employing multiple, segmented transmitters and receivers. Simultaneous gamma ray measurement of formation bulk density and casing thickness. Apparatus and method for minimizing wear and wear related measurement error in a logging-while-drilling tool.

See also references of EPA1.

Systems and methods for controlling a voltage multiplier ladder for optimal efficiency and minimal component stress. Bit based formation evaluation and drill bit and drill string analysis using an acoustic sensor. Apparatus and method for determining the resitivity of underground formations surrounding a borehole.

Semblance processing for an acoustic measurement-while-drilling system for imaging of formation boundaries. Method and system for determining the position and orientation of a device in a well casing. Kind code of ref document: High voltage x-ray generator and related oil well formation analysis apparatus and method. Apparatus and methods for estimating tool inclination using diahraphie gamma ray sensors. Formation resistivity measurement while drilling, utilizing physical conditions representative of the signals from a toroidal coil located adjacent the drilling bit.

DE DET2 de Robust inversion systems and methods for azimuthally sensitive resistivity logging tools.

Electromagnetic logging apparatus with button antennas for measuring the dielectric constant of formation surrounding a borehole. Method for correcting density measurements that are affected by natural and neutron-induced gamma radiation. Inverse vertical seismic profiling using a measurement while drilling tool as a seismic source.

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Multi-frequency electromagnetic wave resistivity tool with improved calibration measurement.

Time and depth correction of MWD and wireline measurements using correlation of surface and downhole measurements. Method and apparatus for correcting coirs developed from a well tool disposed at a dip angle in a wellbore to eliminate the effects diahraphie the dip angle on the data. System and method for reducing the borehole gap for downhole formation testing sensors.

System, method and apparatus for petrophysical and geophysical measurements at the drilling bit. Formation resistivity measurement sensor contained onboard a drill bit resistivity in bit. Apparatus and method for microresistivity imaging in nonconductive drilling fluid.

5 cours & 10 sujets de sismologie I des études supérieures de géophysique

Well logging apparatus having a removable sleeve for sealing and protecting multiple antenna arrays. Kind code of ref document: Structures and methods for damping tool waves particularly for acoustic logging tools. EP Kind code of ref document: Method of determining vertical and horizontal resistivity, and relative dip in anisotropic earth formations having an arbitrary electro-magnetic antenna combination and orientation with cohrs rotation and positon measurements.

Resistivity sensor for generating asymmetrical current field and method of using the same. Neutron logging tool having source and target with deuterium-tritium gas admixture. CA CAC fr Method and cpurs for determining oriented density measurements including stand-off corrections.

Conductivity method and apparatus for measuring strata resistivity adjacent a borehole. Acoustic logging-while-drilling tools having a hexapole source configuration and associated logging methods. Diargaphie and apparatus for generating acoustic signals for LWD shear velocity measurement.

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