... hydraulic fracture characterization from the fracture simulation model to the A-DPDK model through a shape factor (matrix-fracture coupling) calculation. The model enables users to characterize different properties in multiple regions (matrix, propped hydraulic fracture, unpropped hydraulic fracture...

... from sensors placed 100’s of feet behind the drill bit (where resistivity, sonic, density etc. tools are commonly placed). Furthermore, smoothing algorithms are often used to average the detection data thus increasing the offset from the drill bit to the estimated pore pressure calculation. The result...

... the computational modeling of hydrogen and pyrite reactions. The calculations are set at standard temperatures of 25C, and we explore a range of pressures relevant to underground storage. We first use density functional theory (DFT) to optimize the ground state of the reactants and reaction products. With the known...

... analytical models in well spacing decision. The main reasons for this inconsistency are the rectangular shape assumptions in analytical models and neglecting water production in the calculation. Upon drilling several pressure monitoring wells in the Permian Basin and comparing them using multiple diagnostic...

...-correlated properties through sub-volume calculations. The concept of a common rock model, where multi-disciplinary properties are calculated on the same model, facilitates a comprehensive rock characterization in despite the physically small sample. Elastic properties were calculated in addition to basic...

... of time, simplifies the calculation process of the leak-off coefficient in the model. Specifically, a basic fracture inversion process is composed of an analysis of the pressure-decline plot and calculation of the fracture propagation model. First, collect surface pressure from fracturing wells...

... for optimization calculations. Straightforward interpretations of the relationship between production and completion parameters based on bivariate (two-dimensional) scatterplots were difficult because of the nonlinear nature of the dependencies between variables. Therefore, the primary goal of this study...

... Abstract Drilling engineers use a group of offset wells as a starting point for well planning. These offsets can be used to calculate a composite well or a technical limit (minimum operating and non-operating time) and average well (P50 operating and non-operating time) to help understand...

... calculations-is performed. RQ and CQ are determined using advanced petrophysical measurements and interpretation whereby sophisticated sonic wireline tools feature prominently in the workflow. However, operational efficiency is an overriding priority in the development of unconventional plays, allowing very...

... Abstract Calculations of OIP, oil and water volume production, and formation recovery factor are problematic in the Bakken-Three Forks reservoir complex. This study was designed to use specialized well logs and core to determine: 1) variations in water and oil volumes, 2) pore size...

... of these fractions were analyzed by HAWK-PAM for calibration. These data were integrated with MB and TF reservoired and produced oil geochemistry to calculate the volume of producible hydrocarbons stored in the shales. These data were incorporated into three semi-independent workflows to determine shale STOOIP...

...- tubing annulus was observed to restore the loss in well productivity index while the installation of annular flow gas lift improves well operability. This paper describes the well performance observations for different production configurations and the hydraulic calculations for different wellbore...

... spacing . It is usually reported as a single measurement in feet. The Wells per section (WPS) is also noted as the number of laterals in one section (one mile, 5280 feet). The definition is too simple and therefore inadequate. Most well-spacing calculations do not account for vertical separations between...

...), with pressure indicators like mud weight (MW), and multiple empirical log based pore pressure prediction methods into one 3D model of the basin. For log based pore prediction, the Eaton-Yale, and Eaton methods were used to calculate continuous pore pressure profiles across the entire stratigraphic section...

... hydraulic fracturing trajectory design curvature complex reservoir upstream oil & gas lateral gun barrel plot survey point well planning drilling operation modeling calculation tortuosity wellbore tendency placement ellipse fracture directional drilling curve rate nudge...

... fracture height hereford field fracture density inter-stage vsp microseismic data anisotropy fracture barrier production monitoring hydraulic fracturing fault likelihood calculation frac height azimuth URTeC: 2757 Validation of Fracture Height and Density from Rapid Time-Lapse DAS VSP...

... in this study synchronized two of machine learning based regression algorithms. Xgboost and KNN algorithm were combined to compute proration of shale gas wells. The Xgboost was initially used to calculate preliminary proration. The initial results generated from the aforementioned system were added...

... unconventional resource economics complex reservoir pressure transient testing inflow performance pressure transient analysis reservoir characterization reservoir surveillance resolution frequency shale gas reservoir simulation upstream oil & gas fluid dynamics calibration calculation...

... such as Poisson s Ratio, Young s Modulus, Brittleness Index, and the minimum horizontal stress are calculated using Lithology-dependent parameters. An example is presented for an onshore US unconventional formation in which multiple wells are used to develop a robust lithological classification. The developed...

... the balance. Quantification of oil removal ratio after water spontaneous imbibition is achieved through image analysis based on the micro-CT images at dry, oil-imbibed, and water-imbibed conditions. Oil removal ratio (R) can be calculated based on grayscale (g) of the micro-CT images: = (1) where...