... and ii) pattern recognition and interpretation. The former is the process of generating a The automated interpretation of cement bond log data readable library of reference data from historical cement can be performed using cut-off values against curves evaluation logs and laboratory measurements...

.... In this paper we present a workflow to gather, process and analyze conventional log data in order to optimize formation testing operations. The data is from an enormous geographic distribution of wells. Tremendous effort has been performed to extract, transform and load (ETL) the data into a usable format...

... ABSTRACT Petrophysicists are adept at calculating water saturation using log data. Likewise, they are good at interpreting core measured capillary pressure data. In reservoir characterization, quite often, petrophysicists are required to transform the log derived water saturation or core based...

... in water saturation (S w ) computations. Water production is a concern, only reservoir layers with hydrocarbon volumes greater than a pre-determined cutoff are to be completed. During the infield drilling program, an innovative approach to enhance reservoir understanding with log data acquired while...

... well log data sets, with varying reservoir properties designed to cover a range of reservoir properties. Saturations are calculated, at the log scale, using different saturation height models, derived from real capillary data sets. The log scale rock property data are then upscaled to a range of model...

..., dielectric, and standard triple-combo log data that are associated with differences in estimation of clay-bound water volumes from NMR and XRD data. We present results from pore-scale imaging, NMR core-flood experiments, USBM measurements of wettability, and 2.5D inversion of NMR data used to characterize...

... therefore lead to erroneous conclusions regarding the validity of the log data. For core data, elemental concentrations are generally measured by X-ray fluorescence (XRF) or inductively coupled plasma (ICP) techniques. The best way to validate results from these techniques is to test certified reference...

...SPWLA 55th Annual Logging Symposium, May 18-22, 2014 1 TESTING ZONE OPTIMIZATION AND BETTER WELL POSITIONING WITHIN HIGHLY HETEROGENEOUS CONGLOMERATIC AND VOLCANOCLASTIC DEPOSITS WITHIN AN INTERMOUNTAIN OROGENIC BASIN: A MULTIWELL CASE STUDY USING IMAGE LOG DATA FROM NORTH CHINA Authors: Mai Xin...

... the breaking up of reservoir facies. Petrophysical analysis results in converting well log data in to reservoir properties, which help in estimating volumes and production. Similarly, rock physics translates the petrophysical results in to petro-elastic properties leading to better seismic interpretation. Both...

... and frequency, and to apply these corrections to the calibrated logging data. The borehole corrected data is finally used as input for the ensuing inversion that provides the desired product answers. The accurate and fast inversion for the unknown parameters is the key role in this new BHC scheme. The proposed...

... identified. In this paper, we also describe the laboratory NMR measurements of preserved core samples performed in "fresh state" and at varying temperatures to study the effects of the paraffinic oil. exponent log data log pass Uteland Butte reservoir Upstream Oil & Gas water saturation...

... resistivity log values can be attributed to presence of laminar, dispersed or structural clay, small grain size and /or conductive minerals (Oilfield Review, Autumn 1995). Core measurements and log data from the formation discussed suggests multiple reasons for such low apparent resistivity values. Firstly...

.... The most established and well known use of downhole log data in gas hydrate research is the use of electrical resistivity and acoustic velocity data (both compressional- and shear-wave data) to make estimates of gas hydrate content (i.e., reservoir saturations) in various sediment types and geologic...

... ABSTRACT: Drilling fluids are carefully formulated to enable safe and efficient drilling of subsurface formations and, within reservoir sections, to minimize formation damage. Although the effects of these fluids on log data might be a consideration, these effects are generally accepted...

... variation, either temporal or spatial, of the physical property of the object being measured (Sun, Skalinski et al. 2008). A typical example would be the well logging data in petroleum industry. When an instrument is lowered to a drilled well to perform measurements of the physical properties of the earth...

... real time system Modeling & Simulation log data Upstream Oil & Gas DFA Symposium prediction spwla 50 Probe fraction fluid modeling equation of state equilibrium composition compositional gradient connectivity gradient DFA station contamination workflow reservoir...

... log data over the same reservoir intervals. The objective of this study was to investigate the impact of tool wear on density instrument response. Extensive numerical modeling using the Monte Carlo code MCNP has been done to simulate wear effects. Four stages of tool mechanical wear were simulated...

..., service companies have refined the response characterizations and have updated their hardware, providing evolutionary improvements. Unfortunately, the general understanding among petrophysicists of how compensated neutron instruments work and how best to make use of the log data appears to have lagged...

... Upstream Oil & Gas Artificial Intelligence water cut prediction log data water cut Symposium gas sand resistivity water saturation porosity residual gas saturation well logging irreducible water saturation prediction saturation gas saturation reservoir society of petroleum engineers...

... Various techniques have been developed to estimate reservoir permeability. A common methodology is to measure core permeability in the lab and to use this as a reference for other values derived from either a combination of local empirical relationships, log analysis log data buildup...