... Type: Poster complex reservoir attenuation effective pressure physics template upstream oil & gas p-wave impedance reservoir temperature exploration geophysicist 10 carbonate reservoir seismic data porosity seg international exposition porosity inversion reservoir...

.... 30- (a) minutes averages volumetric flow rate is measured to calculate the effective permeability of medium. Flow experiments are conducted under increasing confining pressure from 5 to 25 MPa. Figure 2a shows the experimental permeability plotted against effective pressure. With the digital...

... theory into the procedure of model building. Pore space stiffness theory holds that like the solid matrix of rocks, pores has its own stiffness which is related to the effective pressure. We implement plenty of numerical tests to analyze how the pressure affects the shale by rock physical modelling...

... and the effective pressure, based on numerical simulations of fluid-flow through the digitized fracture surface. The resulting empirical relation shows reasonable agreement compared with those presented in earlier literatures. Presentation Date: Tuesday, October 16, 2018 Start Time: 8:30:00 AM Location: 202A...

... ambiguity between fluid effects and geomechanical effects. Presentation Date: Wednesday, September 27, 2017 Start Time: 2:40 PM Location: 351F Presentation Type: ORAL dilation effective pressure complex time-lapse seismic signature geomechanical effect vertical strain reservoir production...

... rock moduli and the effective pressure. The pore space stiffness and the shear modulus are found to be linear dependent on various expressions of pressure but are most stable with respect to linear pressure. Finally we compare the PSS model with the classical Hertz-Mindlin contact theory. The simpler...

... and Poisson's ratio of rock samples at seismic frequency range and ultrasonic frequency. Measurements for the dry and partially water saturated tight sandstone were performed by MFBMS at four different effective pressures. The Young's modulus and Poisson's ratio of the dry tight sandstone remain almost...

... that the pore pressure map contributes much to the reservoir analysis and well deployment. Therefore, the pore pressure predicted by new method is of great significance for furthermore exploration and exploitation. Methods and theory a. Velocity-effective pressure equation 1) Eaton s equation Eaton s equation...

... increase bulk modulus effective pressure upstream oil & gas pressure-volume relationship helium porosimetry reference list equation mechanism seg denver 2014 pore compressibility Pore volume compressibilities derived from Helium porosimetry and elastic measurements Grazille Oliveira, Marco...

... (5) These equations were obtained from experimental data, some water-saturated, others water-saturated as calculated from dry rock data using Gassmann´s equations, with effective pressure varying from 10 to 50 MPa. Experimental Results Through XRD measurements and the Rietveld method, it was possible...

... allowed the proposal of a relationship that relates the consolidation parameter and the unconfined porosity to be used at high effective pressure. upstream oil & gas high effective pressure estimation effective pressure well logging complex reservoir elastic moduli bulk modulus pride...

... the same cause. All samples, regardless of the measurement direction, show a nonlinear reduction in permeability with increase of effective pressure (up to 3 orders of magnitude), with large variations from sample to sample and measurement direction. While the elasticity showed the less sensitivity...

..., as _ ( / ) ( ) ( / ) ( / ) ( )( ) . ( / ) RP S NCT P C E NCT P S OBS RP S NCT C C HYDRO P S OBS V V P P P V V V V P P P V V (8) where PP is pore pressure, PC is confining pressure, PE_NCT is effective pressure at hydrostatic pore pressure, (VP/VS)OBS is the observed VP/VS ratio in abnormal pressure and (VP/VS)NCT is the expected VP...

... pores, cracks and isometric pores are subject to variations which are dependent on the physical properties of the rock such as density, porosity, permeability, frame work moduli, fluid moduli, micro structural variation, and effective pressure. Our goal is to understand these variations through...

... (i.e., loading-unloading-reloading) in uplifted basins like the Barents Sea. overconsolidation dataset porosity shallow overconsolidated sand effective pressure possible application reservoir characterization seismic velocity seg houston 2013 moduli effective stress overconsolidated...

... sample injection effective pressure sample 1500 gassmann sandstone brine upstream oil & gas chemical flooding methods pore pressure greenhouse gas control An experimental study of acoustic responses on the injection of supercritical CO2 into sandstones Maxim Lebedev*, CO2CRC/Curtin...

... for uncemented sediments. The physical basis for this model incorporates compaction theory and the concept of critical porosity. A porosity-pressure relationship is included in our model to account for porosity loss with increasing effective pressure, which leads to an additional relationship to predict density...

... Summary We present laboratory measurements and analysis of twenty UAE carbonates samples which include quantitative mineralogy, total and effective porosity, permeability and compressional and shear wave velocities as a function of effective pressure and saturation. Brine saturated...

... inputs and should have better performance in pore pressure prediction. Then performances of pore pressure prediction by using differential pressure and effective pressure respectively are compared. Due to delicacy in estimating the effective stress coefficient and complexity of in-situ fluid properties...

... and the reservoir model or reservoir simulation. inversion variation log data oil saturation saturation variation reservoir characterization seismic elastic impedance difference inversion impedance difference difference data effective pressure time-lapse seismic difference data reservoir...