... ABSTRACT: The interaction between reservoir Biot's effective stress and pore pressure change is significant in stress-sensitive reservoirs. Consequently, coupling geomechanics and fluid flow to analyze pressure transient problems for stress-sensitive reservoirs may be necessary. Effective...

... coefficients. A significant outcome is the stress dependency on Biot's coefficient, with considerable changes observed after a 20 MPa differential pressure change, underscoring the necessity for pressure-adjusted estimations rather than utilizing a constant value for a rock as per industry standards. Moreover...

... interpretation and reservoir characterization by developing rock physics templates ( RPTs ) for these specific formations. We explore how pore structure heterogeneity influences velocity sensitivity over a broad frequency range and varied fluid types. By integrating both Gassmann and Biot theories for fluid...

... incident geological subdiscipline creep halite state 36-2lnw-cc sidetrack 1 orientation breakout biot drilling operation drilling fluids and materials reservoir geomechanics stuck-pipe incident ppg wellbore shrinkage mechanism exponent gradient communication ARMA 24 196 Wellbore...

... ABSTRACT: In this work, the dynamic and static Biot's coefficients and elastic parameters of Longmaxi black shale are investigated by using acoustic measurement and triaxial compression tests. The results firstly show that the dynamic and static elastic stiffness, Young's modulus both increase...

.... Effective stress ( σ ′) is the difference between total stress ( σ ) and existing pore pressure ( P p ) multiplied by Biot's coefficient, α . The ‘ α ′ is expressed in terms of bulk modulus (K b ) and matrix bulk modulus (K ma ) as in 1 − K b / K ma . The K b is estimated by acoustic logs as well...

... ABSTRACT Incorporating geomechanics to flow models become the mathematical formulation regarding well-test and reservoir engineering more realistic because geomechanical parameters, e.g., in situ and overburden stress, as well as Biot's coefficient, play a fundamental role in pressure response...

... of these interactions and their impact on the reservoir rock for successful deployment of UHS. In this study, we measure the poromechanical properties, such as bulk compressibility, in-situ porosity, Biot's effective stress coefficient, and P-wave velocity of Berea sandstone specimen at in-situ reservoir stress...

... is particularly challenging. In this work, we present the measurements of the Biot’s effective coefficient α and the Skempton’s B . The measurements on α are made by using strain gauges by following two different approaches: (1) α = 1 − K/Ks, K is the drained bulk modulus and Ks the grain bulk modulus...

... ABSTRACT: The poroelastic effect on deep buried shale is of high interest and value for evaluating coupled effects of rock deformation and pore pressure change during oil/gas field operations. The concept of Biot’s effective stress law has been proved to be very useful in describing...

..., injection-induced cooling. enhanced recovery reservoir simulation complex reservoir Berea sandstone Biot hydraulic fracturing Upstream Oil & Gas hydraulic property normalized time Modeling & Simulation waterflooding aperture geomechanics multiphase flow conductivity fracture...

... ABSTRACT: Understanding subsurface stress modifications and the resulting permeability evolution in unconventional reservoirs, both functions of effective stress, is valuable when evaluating their technical and economic feasibility. As a part of this study, the variation of anisotropic Biot's...

... and they are not suitable for studying wellbore stability under dynamic loads. This paper deals with the wellbore stability of an inclined borehole induced by the drilling and the pressurization. In order to analyze the transient response and discover the main factors which influence the wellbore stability, the Biot's...

... ABSTRACT: Biot’s effective stress law has been proved to be very useful in describing the effect of pore fluid pressure on the mechanical response of rocks and understanding the poroelastic effects in unconventional shale or mudstone formations. In this work, six mudstone source rock samples...

... saturation among others affects the mechanical response of the rock. To complete the understanding of the Vaca Muerta formation mechanical behavior, special laboratory studies like Biot's coefficient and creep test were performed in some core shale gas samples; nevertheless, in this work, the quality...

... significantly as the effective stress increases. This study indicates that proper calibration of creep effect is important to get reliable values. This study also present some recommendations to optimize the results. Reservoir Characterization Biot permeability testing Fluid Dynamics pulse test flow...

... Abstract: Horizontal drilling and multistage fracturing are applied in the Bakken Formation to more efficiently produce hydrocarbons. However, lacking of or insufficient knowledge of Bakken rock Biot's coefficient makes the successful drilling of horizontal well with multistage fracturing...

... Abstract Biot’s coefficient can be expressed by a few different equations, and consequently, these equations may represent different approaches to measure this coefficient. We developed a combined method to measure the Biot’s coefficient by three different approaches based on three different...

... under in-situ conditions, thus ensuring the success of hydraulic fracturing. Biot's coefficient is one of the key poroelastic parameters for calculating the effective stress for creating artificial fractures in the shale formations. In this study, we propose anew method to measure the Biot's coefficient...

... Abstract We calculate the effective vertical and horizontal stresses in the Hejre field, North Sea with a Biot’s coefficient estimated from log data. We show that a drilling window (for a vertical well) calculated with these stresses is larger than if using a Biot’s coefficient of 1. We show...