... of load is shared by pore fluid and the ‘α’ is much smaller than unity. Biot's coefficient ‘α’ is expressed in terms of bulk modulus (Kb) and matrix modulus (Kma). Kb is estimated from acoustic logs as well as measured by hydrostatic compression tests in the laboratory. However, Kma is much more...

... these formations is the key to better understanding what fluids are present and in what quantities. It is well agreed upon that changes in pressure and temperature as rock is taken from downhole, handled and transported to a laboratory facility affect the contents of the pore system. This generally results...

..., and sent to a laboratory for analysis, which takes place weeks to months later. By the time the laboratory has performed an analysis, the section has been cemented, and perhaps the rig has finished operations and moved onto the next phase. Success of the sampling operation is predicated on the samples...

... laboratory pumpout june 24 drilling-fluid filtrate ABSTRACT ABSTRACT Three questions must be answered to optimize any openhole sampling program. These questions are where to sample, when to sample, and how to sample? Samples must be acquired from the right locations in order to answer the critical...

... log analysis fluid modeling drilling fluid property well logging drilling fluid chemistry drilling fluid selection and formulation equation of state upstream oil & gas concentration filtrate pvt measurement engineering laboratory drilling fluids and materials drilling fluid...

... Rock Physics or Digital Rock is a rapidly advancing image-based technology for predicting subsurface properties of complex rocks (e.g., porosity, permeability, formation factor) to achieve more, cheaper, and faster results as compared to conventional laboratory measurements. We show that a combination...

... also constructed the 3D pore network to observe the pore structure, quantify connectivity and specific surface ratio to study their influence on permeability. We found that laboratory measured permeability from core plugs was strongly correlated to the equivalent pore radius calculated from micro-CT...

... such uncertainties. Different methods can be used to estimate dry-weight mineral fractions. Some methods are applied downhole such as neutron-induced spectroscopy (w/spectral gamma ray), while other methods such as X-ray fluorescence (XRF) and X-ray diffraction (XRD) are applied on core in the laboratory...

... of total gas, or Original Gas In Place (OGIP). The calculation of total gas relies on calibrating wireline logs to core data; which are considered to be an empirical validation or ground truth . However, inconsistency in sample preparation and analytical techniques within, and between laboratories creates...

... in recent years of the EUROPA/Callisto (UK) and the Houston API (TX, USA) nuclear logging calibration facilities, a new calibration laboratory opened in May 2018 in Artigueloutan (France) by Total SA close to its scientific and technical center located in Pau. A dedicated affiliate, Total E&P Alternative...

... machine learning drilling fluid property drilling fluid selection and formulation drilling fluids and materials drilling fluid chemistry Artificial Intelligence Upstream Oil & Gas carbon dioxide laboratory concentration field test filtrate drilling fluid management & disposal...

... or source-detector geometries (for more information on micro-tomography see Elliot, and Dover, 1982) to obtain physical information of the samples which can be later integrated to conventional laboratory data for modelling and local rock property prediction. Such objective is based on the nature of X- Rays...

... Upstream Oil & Gas Imaging hyperspectral imaging technology Reservoir Characterization Artificial Intelligence lwir laboratory Symposium integration high-resolution hyperspectral imaging technology SWIR log analysis hyperspectral imaging variation machine learning spectrometer mineral...

...SPWLA 58th Annual Logging Symposium, June 17-21, 2017 1 ADVANCES IN QUANTIFICATION OF MISCIBLE CONTAMINATION IN HYDROCARBON AND WATER SAMPLES FROM DOWNHOLE TO SURFACE LABORATORIES Julian Y. Zuo, Adriaan Gisolf, Thomas Pfeiffer, Vladislav Achourov, Li Chen, Oliver C. Mullins, Simon Edmundson, Ashers...

... with the reconciliation of analysis sourced from different laboratories using different methodologies. There was a significant business driver to this work as we noticed differences in porosity and fluid saturations which contribute to (~25%) difference in hydrocarbon pore volume among vendors using alternative...

... of the fluid properties, which is crucial to the design of completion and production strategies for hydrocarbon reservoirs. Field and laboratory operational procedures for this wireline core technology are presented in this paper. Also included is a discussion of shale gas and mature field applications...

.... The characterization of this phase change (Liquid-Solid) in a pressure-temperature space is challenging due to the following factors: sample availability, sample integrity, laboratory methods, high pressure measurement apparatus, and oil near or at asphaltene onset at reservoir conditions. For example, many reservoirs...

... Abstract Wireline formation testing tools are often used in key exploration and appraisal wells to verify hydrocarbons and to collect fluid samples for laboratory pressure/volume/temperature (PVT) analyses. Downhole fluid analysis is becoming an increasingly common capability for fluid typing...

... FTIR is 3.2—substantially better than a QCMIN score of 10 from analysis of the same samples by multiple, commercial XRD laboratories. As oilfield exploration and production moves to increasingly complex sedimentary environments, accurate mineral analysis is ever more crucial in appraisal, drilling...

... materials that are composed of sedimentary minerals similar in composition to samples of interest. Core mineralogy is most commonly analyzed by X-ray diffraction (XRD) or Fourier transform infrared spectroscopy (FTIR). Laboratory results can be evaluated by analyzing known mixtures of certified minerals...