... well logging log analysis oilfield formation evaluation Symposium rit tool reservoir Jidong Oilfield spwla 60 China resistivity transaction Imaging application resistivity range fracture carbonate reservoir Upstream Oil & Gas wellbore image requirement resistivity curve...

... log analysis Reservoir Characterization well logging aurignac reservoir database saturation geocellular model California Upstream Oil & Gas porosity oil saturation resistivity curve spwla 58 petrophysical software property model workflow core data dataset data quality...

... thick sand interval with nearly constant density values, and the gamma-ray and neutron logs which are not shown in the plot also remain flat. These log signatures indicate that there are no lithology or porosity variations within this interval. However, the resistivity curves, shown on the lower track...

... for the improved interpretation of focused-sampling probes in OBM environments: We found that irreducible water saturation was influential to determining the spatial distribution of fluids around the wellbore as it affected both the separation of apparent resistivity curves and the early-time portion of pressure...

... property Fluid Dynamics viscosity Symposium mud-filtrate invasion resistivity curve permeability base case resistivity measurement invasion SPWLA 48th Annual Logging Symposium, June 3-6, 2007 1 INFLUENCE OF PETROPHYSICAL AND FLUID PROPERTIES ON ARRAY-INDUCTION MEASUREMENTS ACQUIRED...

... shoulder resistivity spwla 46 algorithm dip angle apparent resistivity Formation Resistivity resistivity resistivity curve inverted distance SPWLA 46th Annual Logging Symposium, June 26-29, 2005 Bed-Boundary Effect Removal to Aid Formation Resistivity Interpretation from LWD Propagation...

... permeability is progressively adjusted in the simulation of mud-filtrate invasion until an acceptable match is reached between the measured and simulated array induction curves. Finally, automatic inversion of permeability is performed from the AIT apparent resistivity curves. ASSESSMENT OF WATER SATURATION...

... filtrate invasion Symposium resistivity curve resistivity reservoir SPWLA 46th Annual Logging Symposium, June 26-29, 2005 LWD AND WLL RESISTIVITY MODELLING AND TIME-LAPSE COMPARISON TO SUPPORT THE OPERATIONAL DECISION PROCESS IN A COMPLEX ENVIRONMENT M. Borghi, M.T. Galli and C. Boeri , ENI E&P...

... machine learning Upstream Oil & Gas well logging Pattern Recognition Artificial Intelligence size distribution interpretation Rabiller Symposium log analysis invasion profile porosity information saturation resistivity log reservoir resistivity curve resistivity ratio...

... ABSTRACT Petrophysicists often have difficulty interpreting logs from today's multispacing, multifrequency logging-while-drilling (LWD) propagation resistivity tools. Which of the many resistivity curves represents the true formation resistivity? The logs may be affected to varying degrees...

...% and hydrocarbon pore feet increased 22%. log analysis deviation well logging deep resistivity West Sak resistivity model Modeling & Simulation bed boundary inversion model shallow resistivity model resistivity curve formation resistivity model boundary Symposium resistivity log Upstream...

... well logging borehole saturation resistivity log spwla 43 Upstream Oil & Gas seismic line sinusoidal borehole resistivity log analysis polarization horn pilot borehole borehole trajectory separation water saturation Symposium Transaction resistivity curve reservoir...

.... The ordering of resistivity curves measured at different spacings i complicated and non-intuitive. 3D modeling of finite fractures of different aperture and extent, as well as borehole breakouts, has been con- ducted to understand the tool response in typical wellbore environments. These modeling results have...

... or gas is in a potential reservoir? If oil or gas exists, is there any evidence that it is moveable? What is the pore pressure of a zone? To answer these questions, two important values that the log analyst wants to know are Rt and Rx0. However, LWD logs typically present numerous resistivity curves...

...SPWLA 41 Annual Logging Symposium, June 4-7,200O ROBUST COMPUTATION OF FOCUSED RESISTIVITY CURVES FROM HIGH-DEFINITION LATERAL LOG DATA Zeljko Jericevic, Antonio Fabris, Michael A. Frenkel, Zhiqiang Zhou Baker Atlas, Houston, Texas, USA ABSTRACT The High Definition Lateral Log (HDLL) instrument...

... measurements at all. This selection of measurements ensures that the deep reading curves are substantially free from borehole rugosity and noise inherent in very shallow measurements. The deep resistivity curves can be computed from the upper and lower channels independently or by taking the average of both...

... of the Murchison Field, UK Northern North Sea. The data set comprised gamma ray, ten resistivity curves, azimuthal density and neutron data; no other logging tools were used in the well. Interpretation of the data set has provided invaluable information concerning the borehole condition, geology and petrophysical...

... shaly-sand reservoir pilot hole resistivity curve reservoir Bittar Anisotropy correction wellbore anisotropy spwla 39th resistivity log invasion SPWLA 39th Annual Logging Symposium, May 2629,199s APPLYING ANISOTROPY CORRECTIONS TO MWD ELECTROMAGNETIC WAVE RESISTIVITY DATA IN A SHALY-SAND...

... curve resistivity curve inch curve spwla 38th separation invasion Artificial Intelligence radial response ohmmeter correction resistivity anisotropy Meyer SPWLA 38th Annual Logging Symposhm, .Ja~e 15-H& 1997 MULTI-PARAMETER PROPAGATION RESISTIVITY INTERPRETATION W. Hal Meyer Baker Hughes...

... noticeably improved net-pay estimates, which have been in good agreement with production testing results. well logging seiler Halliburton Upstream Oil & Gas analysis result application resistivity curve saturation resolution formation evaluation Symposium mudcake resistivity...