... or coarser pores in high-water-permeability zones using cement grout material, which had been used as an environment-friendly construction material for decades, as it had been confirmed to reduce the water permeability over a wide range by adjusting operational conditions. To verify the effectiveness...

...) and are revealed to have higher importance in terms of volumetrics. The interconnected nano pores are responsible for the matrix permeability of around 0.1-1md. The T2 signal from the vesicular pores indicates the shortening of bulk relaxation, probably due to the paramagnetic nature of the reservoir. Similarly...

...The 29th Formation Evaluation Symposium of Japan, September 12-13, 2024 Integration of FPWD and LWD NMR Data to Derive Continuous Permeability Log Dong Hao Wu1, Lei Zhang2, Xin Zhou2, Li Jun Zhao2, Hong Liang Zhang2, Shuai Wang2, Zhao Ya Fan2, Bo Nan Ren2, Guang Rao2 1. CNOOC Tianjin, 2. SLB...

... pore spaces, permeability, and rock reactivity, as well the difficulties in the use of seawater for CO 2 capture and uncontrollable carbonation. To address these issues, our research group proposed a new CO 2 capture, geological storage, and mineralization approach, with the innovative utilization...

..., various methods such as renormalization, pressure-solver, and tensor permeability techniques have been proposed. These methods often involve complex computation, like solving partial differential equations (PDEs) or conducting predynamic simulations, making upscaling very timeconsuming and complicated...

...); and different permeability subzones within the target gas sand using the permeability-linked Adaptive Rock Physics Template (KARPT), i.e., less than 0.5 mD, <0.5 mD, from 0.5 to10 mD, from 10 to 200 mD), and >200 mD. The permeable zones of K higher than 10 mD can be suitable target for carbon injection...

... by utilizing core measurement results such as porosity and permeability profiles as well as its corresponding Pc vs water saturation (Sw) profiles. When core data are not available, alternative solution is required to fill the gap in the input data required for reservoir modelling. In this study, we have...

... Introduction This paper presents the methodology used to deliver a consistent set of rock types, with petrophysical outputs of porosity, water saturation, and permeability, using a class-based machine learning (CbML) method. This novel tool is designed for summarizing the unique...

... and uncertainty management will be also highlighted. Few wells with complete log data set were used as training input to predict the petrophysical parameters namely lithology, porosity, permeability and water saturation. Two approaches were adopted in the AI workflow; one is using decision-tree based random...

... Abstract An enhanced geothermal system that uses carbon dioxide (CO 2 ) for both reservoir creation and thermal energy extraction has been attracting attention in Japan. For this system, CO 2 fracturing is conducted to create highly permeable fractures in low-permeability reservoirs...

... because of the effect of viscosity to the shape of NMR T 2 spectrum. In this study, to understand the effect of saturated hydrocarbon to NMR responses, 20 core samples, which were separately drilled from ultra-tight, low permeability and conventional sandstone reservoirs, were applied for laboratory...

... saturation decreases, resulting in the decrease in the permeability. (3) The grout material is injected with water from the production well prior to the depressurization or after dissociating some parts of MH. (4) The injected grout materials flow only in the water phase. (5) The injected grout materials...

... taking the concentration and aggregation of nanoparticles into consideration. This function was validated by successfully matching the simulation results with the existing core flooding experimental data. On the other hand, a multi permeability, white oil type simulator was developed to simulate...

... the distribution of effective tight sandstones. permeability log analysis reservoir porosity upstream oil &amp; gas machine learning chang 8 well logging mercury injection saturation characterization artificial intelligence formation evaluation symposium ansai region development university...

... challenges is to understand and characterise reservoir complexity and heterogeneity, with permeability being one of the key factors in understanding sweep behavior and predicting production and injection rates. Rumaila has extensive surveillance programs and production and saturation logs are used to refine...

... Abstract Enhanced geothermal system (EGS) technologies have been investigated and developed to generate electric power using high-temperature rocks which have however relatively low initial permeabilities. One of the important techniques in EGS is therefore stimulation to enhance the rock...

.... The relationship between the degree of blockage and the pore structure was discussed to support this. These results offer additional insight into the enhanced oil recovery (EOR) effects of LSW. In simulation studies, low-salinity relative permeability curves for coreflood experimental results were derived via...

... Artificial Intelligence kinetic rate constant therm fracture non-equilibrium state permeability The 25th Formation Evaluation Symposium of Japan, September 25-26, 2019 Development of Geothermal Reservoir Simulator for Predicting Water-Steam Flow Behavior Considering Non-equilibrium State and MINC...

... &amp; Simulation Upstream Oil &amp; Gas concentration enhanced recovery waterflooding absolute permeability porosity 25th formation evaluation symposium Oil Recovery reaction University simulator rock surface equation flow in porous media Fluid Dynamics mechanism ion concentration adsorption...

... ABSTRACT The relationship between porosity and permeability is often only marginally useful in production performance prediction, and it is desirable to investigate alternative methodologies to improve permeability estimates. This paper presents a new workflow using logging-while-drilling (LWD...