... as tapping into oil zones from remote locations. In this paper, we introduce a state-of-art formation evaluation toolkit specifically developed for quantitative interpretation of high angle and horizontal well logs. Starting with wellbore images and standard triple-combo field logs, the workflow consists...

... measurement induction tool log analysis Woodford Shale shale frequency permittivity dielectric effect Symposium source rock kHz polarization Induction log high dielectric permittivity pyrite equation well logging dielectric permittivity field log conductivity spwla 47th x-signal log...

... and a knowledge of the local fine structure, we are able to reconcile the calculated saturations and the log values. well logging Upstream Oil & Gas anisotropic crossbedded reservoir-improving prediction reservoir property saturation field log interpretation log analysis water saturation...

... in the response are encountered that are nor corrected for with the standard processing techniques. Using 3D forward modelling and inversion schemes we are able to recover formation resistivity profiles with associated synthetic resistivity tool responses that are in accordance with field logs obtained in highly...

... Symposium well logging Knizhnerman geometry Artificial Intelligence field log Barber horizontal well interface separation resistivity log invasion anisotropy resistivity Druskin interpretation fracture shoulder effect SPWLA 37th Annual Logging Symposium, June 16-19,1996 A THE RESPONSE...

... signatures from resistivity logs, the time-lapse between drilling and logging, porosity from logs or cores, fluid density information, and mud-filtrate viscosity, to give a value for the vertical permeability, kv. The procedure has been used to successfully analyze several field logs. Values...

... Artificial Intelligence well logging induction invasion profile filtrate field log interpretation Anderson Upstream Oil & Gas bed boundary boundary spwla 34th log analysis modeling Invasion Diameter resistivity invasion Drilling Symposium LWD resistivity tool wireline...

... log analysis x-signal anomaly excursion induction tool Symposium well logging spwla 33rd magnetic effect magnetic formation coupling anomaly borehole field log dielectric effect Upstream Oil & Gas variation iixm x-signal log magnetic susceptibility mineral coil...

... and invaded zones in real time on workstations. In this paper, we first confirm the accuracy of the NMM by comparing the numerical results with results from existing codes. Dual Induction Tool (DIT) and AIT field logs are analyzed in several complex formations consisting of multiple beds with borehole...

..., the induction log simulation codes are used to compute the induction log in the formation based on the estimated formation resistivity profile. The analyst compares the computed log with the field log, adjusts the profile resistivity values and/or the bed boundaries, and repeats the process until the computed...

... that are characteristic of all 2-MHz LWD tools. These effects have been observed on field logs and have also been reproduced with computer modeling. In particular: - In thin (2 ft 10 ft) beds, dlp and shoulder effects can cause separations between phsse shift and attenuation resktivity curves and affect the readhgs...

... are organized in an Electromagnetic Modeling package (ELMOD), which consists of a set of VAX-based command files and programs. Using ELMOD, a log analyst can define a formation and compute and display induction tool response (both conventional and Phasor*) in a format identical to that of field logs. Future...

..., indicate that formations where this effect occurs are laminated. Computer models of SFL and induction response in laminated formations duplicate the field log. Additional modeling demonstrates that the resistivity average as measured by SFL does not equal the reciprocal of the average conductivity...

... the computed log matches the field log. When a good match is achieved and we are able to regenerate both Phaeor and conven- tional field logs from the same set of input parame- ters, we can be reasonably sure that we have found the actual formation characteristics that caused the anomalous log. In the process...

... of previously-recorded field logs, especially when the logs relate to multiphase flows in wells having substantial deviation angles. Examples are discussed in which the facility is used to develop analytical data for field logs in multiphase flows in an oil well with a 70ø deviated wellbore and a gas well whose...

... environments, they have found wide application in tool design, and in the verification of automatic data inversion and the validation of log interpretation. For log interpretation in particular, computer modeling can aid a log analyst in two ways. First, if a field log can be duplicated by a computed log, one...

... of the model easily lends itself to the generation of current patterns in space, we will examine current flow between resistive and conductive beds to gain additional insight about shoulder effect. We will also use computed logs to analyze several field logs run in typical hard rock and Gulf Coast formations...