... Abstract In this paper, we will show that it is highly beneficial to model dual-porosity reservoirs using matrix refinement (similar to the multiple interacting continua, MINC, of Preuss, 1985) for water displacing oil. Two practical situations are considered. The first is the effect...

... We investigate the use of a restarted Krylov subspace method for computing the action of a function of large sparse matrix on a vector to numerically solve the one-step wave extrapolation matrix We investigate the use of a restarted Krylov subspace method for computing the action of a function...

... Abstract Gas flow modelling in shale and tight gas reservoirs is still challenging mainly due to different pore-scale flow regimes present in micro- and nano-pores of these reservoirs. The effect of geomechanical stress also significantly affect the measurement and prediction of apparent matrix...

... SUMMARY Recent developments in matrix rank optimization have allowed for new computational approaches in the field of seismic data interpolation. In this paper, we propose an approach for seismic data interpolation which incorporates the Hierarchical Semi-Separable Structure (HSS) inside rank...

... fluid dynamics nc 10 matrix permeability permeability oil recovery recovery factor kpa upstream oil & gas reservoir mechanism co 2 enhanced recovery saturation connate water saturation miscible condition fractured reservoir chemical flooding methods flow in porous media...

... Abstract ADNOC Environmental Impact Severity Matrix (EISM) is designed to rate the severity of environmental impacts whether from routine or accidental aspects. It takes into consideration the various contributing parameters after grouping them into 2 main axes, Duration of Impact and Impact...

... Abstract This paper proposes a sub-gridding technique to improve the reliability of matrix-fracture exchanges predicted by dual-porosity simulators. As a preliminary target, this sub-gridding technique was designed for the capillary imbibition case, by taking into account the physical...

... Abstract Countercurrent capillary imbibition is an important oil recovery mechanism in naturally fractured reservoirs. This paper presents a comprehensive study which examines 8 important characteristics of countercurrent imbibition as observed from experiments conducted with single matrix...

... are the upper and lower reservoir heads, respectively. Reservoir Characterization Fluid Dynamics reservoir storage uppereservoir storage Upstream Oil & Gas dimensionless time coefficient storage flow in porous media hydrauliconductivity pulse decay measurement covariance matrix sensitivity...

... are known. Due to the non-linearity of balance equation, an iterative process is required to calculate the values at the other end of the pipe. In the model proposed in this paper the system of equations was arranged in a matrix and vector form, all pressure and temperature for all the nodes are calculated...

... Abstract Matrix acidizing is a stimulation treatment during which acid is injected below formation fracture pressure. The purpose of acidizing is to enlarge pore space or create channels through dissolution of plugging particles and formation minerals near the wellbore. Simulation of acidizing...

... Abstract Foam-based EOR techniques have surfaced as a promising approach for unconventional reservoirs with high heterogeneity, adverse wettability, and natural fractures. Constraints such as permeability contrast (PC F/M ) between fractures and the matrix can delimit the effectiveness of gas...

... Abstract Objectives/Scope: This paper addresses the complex logistical challenges associated with the planning and execution of a large-scale offshore matrix acid stimulation treatments job performed on a small workover rig. It captures the challenges and the smart solutions deployed...

... Abstract In carbonate matrix stimulation, hydrochloric acid (HCl) is injected to partially dissolve the near-wellbore region forming a network of high-conductivity wormholes. Optimal treatments are sought to achieve the deepest wormhole penetration into a reservoir at minimum volume of injected...

... Abstract Carbonate matrix acidizing creates wormholes in the damaged formation around the wellbore and is used extensively to enhance well productivity. There are many factors discussed in literature that can positively or negatively affect the efficiency of carbonate matrix acidizing...

... Abstract The objective of matrix acidizing in sandstone reservoirs using acid systems that contains Hydrofluoric acid (HF) is to widen the pore throats and spaces in order to increase the permeability around the wellbore and remove formation damage. One major disadvantage of this acid system...

.../hydrofluoric acid (HF) stimulation treatments. A matrix stimulation/acidization using a tool that enables pumping the treatment, either as near as possible to or reciprocating across the perforations, is necessary to help remove formation damage, enhance recovery, and increase oil production (producer wells...