... shaly sand interpretation associated with lower water saturation to laminar clay is computed by the resistivity anisotropy from the multicomponent induction tool. Varying clay species, carbonates, including limestone and dolomite, and pyrite are observed on XRD results adding heterogeneity of the target...

... the various available commercial offerings discussed in Hou et al. (2013) and Wang et al. (2006). MCI or triaxial induction logging is currently used for delivering formation resistivity anisotropy (horizontal and vertical resistivities), dip, and dip azimuth (or strike), but it cannot directly measure...

... a joint in- version for horizontal and vertical resistivity, which quantitatively characterizes the laminated formation s resistivity anisotropy. The paradox of anisotropy states that such an inversion is impossible; the laterolog-array cannot measure the vertical resistivity. On the other hand, field...

...SPWLA 56th Annual Logging Symposium, July 18-22, 2015 1 RESISTIVITY ANISOTROPY AND FORMATION DIP EVALUATION IN VERTICAL AND LOW ANGLE WELLS USING LWD DIRECTIONAL ELECTROMAGNETIC MEASUREMENTS Mathias Horstmann, Keli Sun, Schlumberger, Peter Berger, OMV, Per Atle Olsen, Statoil, Dzevat Omeragic...

...SPWLA 55 th Annual Logging Symposium, May 18-22, 2014 1 USING NEW LWD MEASUREMENTS TO EVALUATE FORMATION RESISTIVITY ANISOTROPY AT ANY DIP ANGLE Shanjun Li, Jiefu Chen, and Tommy L. Binford Jr. Weatherford International, 16210 West Hardy Road, Houston, Texas Copyright 2014, held jointly...

... fields of the Colville High, North Slope region of Alaska have been studied during recent decades to gain better petrophysical understanding of the laminated structure of some of the reservoirs. That activity extended along three main avenues. well logging resistivity anisotropy application...

... to explain the log. Numerical modeling showed that resistivity anisotropy, tool eccentering, thin beds or dielectric effects alone could not explain the curve separations and the anticorrelation of the attenuation and the phase difference apparent resistivity log responses. To test the hypothesis of spiraled...

... applications in formation evaluation. An area of current interest is the evaluation of resistivity anisotropy and formation dip in low-angle wells to better quantify hydrocarbon in place. We present a multistep inversion-based workflow for the interpretation of resistivity anisotropy and formation dip from...

...), with the lamina less than 1 cm thick (Campbell, 1967). well logging resistivity anisotropy sandstone determination petrophysical evaluation shale laminar shale saturation resistivity log analysis spwla 51 porosity Symposium interpretation equation Upstream Oil & Gas reservoir...

... and sometimes non-existent resistivity contrast between the hydrocarbon and water-bearing zones. well logging resistivity anisotropy kaolinite induction device clay content porosity petrophysical interpretation log analysis spwla 51 mineralogy Cooper Basin magnetic resonance interpretation...

...–15 saturation units, as compared to the standard petrophysical evaluation using conventional resitivity logs. Thus, measuring resistivity anisotropy by the triaxial array induction tool in Mid Tapti field helped to estimate reliable hydrocarbon saturation and reserves. INTRODUCTION The Mid Tapti...

... saturation induction tool aid field development Upstream Oil & Gas shale Symposium evaluation saturation hydrocarbon fraction interpretation resistivity anisotropy porosity north coast marine area reservoir anisotropy bearing sand Reservoir Quality Sand petrophysicist spwla 47 SPWLA...

... Laminated formations exhibit anisotropy in several petrophysically relevant forms, notably electric resistivity and fluid-flow permeability. Resistivity anisotropy has qualitatively been known for a long time as a phenomenon in shales and laminates. Since the early 1990s it has been...

... antenna combinations furthermore provide the capability to detect and characterize resistivity anisotropy in near-vertical wells while drilling. A new directional EM tool based on the technology is designed with a symmetric transmitter-receiver configuration that allows optimization of the sensitivity...

... Upstream Oil & Gas resistivity anisotropy induction tool triaxial induction tool porosity water saturation Computation interpretation borehole image shale spwla 46 resistivity horizontal resistivity Symposium sand-shale analysis equation shale anisotropy reservoir anisotropy SPWLA...

... resistivity anisotropy technique shale anisotropy technique Upstream Oil & Gas resistivity anisotropy formation evaluation hydrocarbon interpretation thinly laminae evaluation saturation reservoir resistivity tool well logging petrophysical evaluation resistivity anisotropy technique...

... rather than Rv and Rh, there is still a need to transform the average Rv and Rh values to the Swt. In recent years, several methods for resistivity anisotropy analysis have been published that are applicable to specific geological cases. We will discuss the advantages and limitations of these methods...

...SPWLA 43 rd Annual Logging Symposium, June 2-5, 2002 USING ARRAY INDUCTION AND ARRAY LATEROLOG DATA TO CHARACTERIZE RESISTIVITY ANISOTROPY IN VERTICAL WELLS Ollivier Faivre, Tom Barber, Laurent Jammes, and Dat Vuhoang Schlumberger ABSTRACT The HRLA* High-Resolution Laterolog Array tool brings...

... ABSTRACT Real geological formations may exhibit resistivity anisotropy in two ways: micro-anisotropy and macro-anisotropy. Micro-anisotropy is intrinsically anisotropic because of the microstructure of the formation. However, macro-anisotropy is often due to electrical and electromagnetic well...

... ABSTRACT Resistivity anisotropy is not uncommon in earth formations, and the knowledge of its presence and degree can be valuable in petrophysical analysis, well planning, and rig-site safety. The knowledge gathered in vertical wells is important for identifying and evaluating thinly laminated...