... While Drilling (FMWD) to acquired logging-while-drilling downhole fluid analysis (FMWD-DFA) in the development stage of a North Sea reservoir. An extensive Wireline DFA (WL-DFA) dataset and Reservoir Fluid Geodynamics (RFG) study helped characterize fluid variations in the exploration and appraisal...

... and injection phases. Interaction with scCO 2 limited the variation of α and the effect of P p and C p on α decreased in significance during the depletion phase. Longer interaction time with scCO 2 increased α from 10-25% at different P p values compared to argon during the injection stage...

... reservoir simulations confirm the behavior of the generalized scaling curve with the variation of selected input factors. We complemented this study by conducting a global sensitivity analysis (GSA) to systematically examine the impacts of hydraulic fracture half-length and spacing, unstimulated shale...

... is turned off. It occurs in ROP, when the controller is in ROP mode and does not switch to WOB during the stand. Step changes in the ROP and RPM signals due to set point changes were ignored as this is not a system instability. The WOB signal will vary at a constant ROP due to variation in formation...

... torques on various premium connections during the design stage and is centered on contact pressure calculations during make up and its variations with axial loading. By using this methodology, variations on connection torsional capacity can be studied in terms of applied axial loads. Additionally...

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... plus CO 2 , as shown in Figs (6 & 7 ). It appears that the isotopes of the gas compounds from the seven samples are quite close and display very small variations. The isotope variations from the studied gas samples are too small to suggest any impact from adsorption-desorption. This could result...

... Permeability is a physical property that is affected by the variation of the net effective stress, pore body, and throat radius ( Boualam et al., 2020 ) where net confining stress is defined by ( Jones 1988 ) as the difference between hydrostatic confining stress and the pore pressure. This method...

... In this case study, the Burgan formation was targeted while drilling a new water-injection well in an onshore location. Burgan is composed primarily of siliclastics and is known to be a challenging formation due to lithofacies variation, lateral heterogeneity, and thickness variation, in addition...

... injection site-specific mineral structural geology flow in porous media climate change mineral composition injectivity mineralogical composition interaction reservoir simulation enhanced recovery experiment reaction workflow variation sequestration reproduce Abstract One of the main...

...Introduction Abstract The present research propouses a methodology using XRF analysis on drill cuttings samples, obtained during well drilling, for characterizing pre-salt reservoir formations in the Santos Basin, southeast of Brazil in order to identify composition variations in carbonates...

... reservoir fourier integral representation lag coefficient wellbore storage leakage variation research Introduction The Earth's surface can be considered a "free surface" acted upon by tidal forces. Natural stresses, such as earth tides, ocean tides, and atmospheric pressure load can deform...

... In this study, the imperfections are coined as the geometric variations in component feature sizes, namely, Outer diameter (OD), Inner diameter (ID), slot length, slot width, slot depth and geometric variations in defects, namely, eccentricity, orientation of eccentricity, ovality and orientation...

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... nitrogen (TAN) and total borate boron ( Piedrahita and Seland, 1995 ; Zhang et al., 2019 ). In order to simplify the mathematical formulation for pH calculation, in this study TCO 2 and TAN values are approximated to be constants. The motivation for this being, during LSWF very little variation in pH...

... observation wells, confirming the qualitative variations attributed to the effects of the steam chamber evolution. It demonstrated the viability of this innovative seismic and focused monitoring approach to monitor the evolution of the steam chamber in Surmont. This also paves the way for a simpler and yet...

... BHI interpretation and the petrophysical data revealed that the fracture densities and orientation vary from bottom to top interval indicating tectonic regimes affecting the field. The lithological variation due to the evolution of the depositional setting has significantly influenced the fracture...

... and Morita 2021 , AlBahrani et al. 2021 ), this paper focuses on the influence of events from the second category. In this work, several common drilling scenarios are proposed to explore the potential influence of mud weight variations on the allowed mud weights and wellbore strength, essentially producing...

... the problem of sending the measured information up to the surface, it creates significant impact on drilling system energy variation and downhole drilling dynamics. This paper focuses on understanding the effects using big data and drilling system modeling. When a commonly used MWD tool generates mud pulse...

... wolfcamp bit selection upstream oil & gas variation rop rotation presentation bit rpm assembly torque configuration directional drilling systems and equipment lateral real-time measurement bha mse adj rpm society of petroleum engineers Introduction A series of DBR bit dulls...